diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index e8b23d34..c784a611 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -62,7 +62,7 @@ jobs:
       yarn lint
     displayName: 'Lint'
 
-- job: IntegrationTests
+- job: Linux_IntegrationTests
   pool:
     vmImage: 'ubuntu-16.04'
   steps:
@@ -81,14 +81,32 @@ jobs:
       yarn start &
       sleep 10
       yarn test-api --headless
-    displayName: 'Integration tests'
+    displayName: 'Linux Integration tests'
+
+- job: macOS_IntegrationTests
+  pool:
+    vmImage: 'xcode9-macos10.13'
+  steps:
+  - task: NodeTool@0
+    inputs:
+      versionSpec: '8.x'
+    displayName: 'Install Node.js'
+  - script: |
+      yarn
+    displayName: 'Install dependencies and build'
+  - script: |
+      yarn start &
+      sleep 10
+      yarn test-api --headless
+    displayName: 'MacOS Integration tests'
 
 - job: Release
   dependsOn:
   - Linux
   - macOS
   - Windows
-  - IntegrationTests
+  - Linux_IntegrationTests
+  - macOS_IntegrationTests
   condition: and(succeeded(), or(eq(variables['Build.SourceBranch'], 'refs/heads/master'), eq(variables['Build.SourceBranch'], 'refs/heads/release/*')))
   pool:
     vmImage: 'ubuntu-16.04'
diff --git a/bin/test_mousemodes.js b/bin/test_mousemodes.js
index 12ee8a0c..976a38e0 100644
--- a/bin/test_mousemodes.js
+++ b/bin/test_mousemodes.js
@@ -48,43 +48,66 @@ stdin.addListener('data', function(data) {
   }
 });
 
-// basic button codes (modifier keys are added on top)
-const BUTTONS = {
-  0: ['left', 'press'],
-  1: ['middle', 'press'],
-  2: ['right', 'press'],
-  3: ['', 'release'],
-  32: ['left', 'move'],
-  33: ['middle', 'move'],
-  34: ['right', 'move'],
-  35: ['', 'move'],
-  64: ['wheel', 'up'],
-  65: ['wheel', 'down']
+// button definitions
+const buttons = {
+  '<none>':  -1,
+  left:       0,
+  middle:     1,
+  right:      2,
+  released:   3,
+  wheelUp:    4,
+  wheelDown:  5,
+  wheelLeft:  6,
+  wheelRight: 7,
+  aux1:       8,
+  aux2:       9,
+  aux3:      10,
+  aux4:      11,
+  aux5:      12,
+  aux6:      13,
+  aux7:      14,
+  aux8:      15
 };
+const reverseButtons = {};
+for (const el in buttons) {
+  reverseButtons[buttons[el]] = el;
+}
 
+// extract button data from buttonCode
 function evalButtonCode(code) {
-  // 2 bits: 0 - left, 1 - middle, 2 - right, 3 - release
-  // higher bits: 4 - shift, 8 - meta, 16 - control
-  const modifier = {shift: !!(code & 4), meta: !!(code & 8), control: !!(code & 16)};
-  const wheel = code & 64;
-  let action;
-  let button;
-  if (wheel) {
-    action = (code & 1) ? 'down' : 'up';
-    button = 'wheel';
-  } else {
-    action = code & 32 ? 'move' : code === 3 ? 'release' : 'press';
-    code &= 3; // TODO: more than 3 buttons + wheel
-    button = code === 0 ? 'left' : code === 1 ? 'middle' : code === 2 ? 'right' : '<none>';
+  // more than 15 buttons are not supported
+  if (code > 255) {
+    return {button: 'invalid', action: 'invalid', modifier: {}};
   }
-  return {button, action, modifier};
+  const modifier = {shift: !!(code & 4), meta: !!(code & 8), control: !!(code & 16)};
+  const move = code & 32;
+  let button = code & 3;
+  if (code & 128) {
+    button |= 8;
+  }
+  if (code & 64) {
+    button |= 4
+  }
+  let actionS = 'press';
+  let buttonS = reverseButtons[button];
+  if (button === 3) {
+    buttonS = '<none>';
+    actionS = 'release';
+  }
+  if (move) {
+    actionS = 'move';
+  } else if (4 <= button && button <= 7) {
+    buttonS = 'wheel';
+    actionS = button === 4 ? 'up' : button === 5 ? 'down' : button === 6 ? 'left' : 'right';
+  }
+  return {button: buttonS, action: actionS, modifier};
 }
 
 // protocols
 const PROTOCOLS = {
   '9    (X10: press only)': '\x1b[?9h',
   '1000 (VT200: press, release, wheel)': '\x1b[?1000h',
-  // '1001 (VT200 highlight)': '\x1b[?1001h',  // handle of backreport not implemented
+  // '1001 (VT200 highlight)': '\x1b[?1001h',  // handle of backreport - not implemented
   '1002 (press, release, move on pressed, wheel)': '\x1b[?1002h',
   '1003 (press, relase, move, wheel)': '\x1b[?1003h'
 }
@@ -96,8 +119,8 @@ const ENC = {
     // format: CSI M <button + 32> <row + 32> <col + 32>
     report => ({
       state: evalButtonCode(report[3] - 32),
-      row: report[4] - 32,
-      col: report[5] - 32
+      col: report[4] - 32,
+      row: report[5] - 32
     })
   ],
   'UTF8' : [
@@ -108,8 +131,8 @@ const ENC = {
       const sReport = report.toString(); // decode with utf8
       return {
         state: evalButtonCode(sReport.charCodeAt(3) - 32),
-        row: sReport.charCodeAt(4) - 32,
-        col: sReport.charCodeAt(5) - 32
+        col: sReport.charCodeAt(4) - 32,
+        row: sReport.charCodeAt(5) - 32
       };
     }
   ],
@@ -119,7 +142,7 @@ const ENC = {
     report => {
       // strip off introducer + M
       const sReport = report.toString().slice(3, -1);
-      const [buttonCode, row, col] = sReport.split(';');
+      const [buttonCode, col, row] = sReport.split(';');
       const state = evalButtonCode(buttonCode);
       if (report[report.length - 1] === 'm'.charCodeAt(0)) {
         state.action = 'release';
@@ -133,7 +156,7 @@ const ENC = {
     report => {
       // strip off introducer + M
       const sReport = report.toString().slice(2, -1);
-      const [button, row, col] = sReport.split(';');
+      const [button, col, row] = sReport.split(';');
       return {state: evalButtonCode(button - 32), row, col};
     }
   ]
@@ -182,7 +205,7 @@ function applyReportData(data) {
   let {state, row, col} = ENC[Object.keys(ENC)[activeEnc]][1](data);
   console.log('\x1b[2KButton:', state.button, 'Action:', state.action, 'Modifier:', state.modifier, 'row:', row, 'col:', col);
   // apply to cursor position
-  process.stdout.write(`\x1b[${col};${row}H`);
+  process.stdout.write(`\x1b[${row};${col}H`);
 }
 
 printMenu();
diff --git a/test/api/MouseTracking.api.ts b/test/api/MouseTracking.api.ts
new file mode 100644
index 00000000..266edff7
--- /dev/null
+++ b/test/api/MouseTracking.api.ts
@@ -0,0 +1,2118 @@
+/**
+ * Copyright (c) 2019 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import * as puppeteer from 'puppeteer';
+import { assert } from 'chai';
+import { ITerminalOptions } from 'xterm';
+
+const APP = 'http://127.0.0.1:3000/test';
+
+let browser: puppeteer.Browser;
+let page: puppeteer.Page;
+const width = 1024;
+const height = 768;
+
+// adjust terminal row/col size so we can test
+// >80 up to 223 and >255
+const fontSize = 6;
+const cols = 260;
+const rows = 50;
+
+// for some reason shift gets not caught by selection manager on macos
+const noShift = process.platform === 'darwin' ? false : true;
+
+/**
+ * Helper functions.
+ */
+async function openTerminal(options: ITerminalOptions = {}): Promise<void> {
+  await page.evaluate(`window.term = new Terminal(${JSON.stringify(options)})`);
+  await page.evaluate(`window.term.open(document.querySelector('#terminal-container'))`);
+  if (options.rendererType === 'dom') {
+    await page.waitForSelector('.xterm-rows');
+  } else {
+    await page.waitForSelector('.xterm-text-layer');
+  }
+}
+
+async function resetMouseModes(): Promise<void> {
+  return await page.evaluate(`
+    window.term.write('\x1b[?9l\x1b[?1000l\x1b[?1001l\x1b[?1002l\x1b[?1003l');
+    window.term.write('\x1b[?1005l\x1b[?1006l\x1b[?1015l');
+  `);
+}
+
+async function getReports(encoding: string): Promise<any[]> {
+  const reports = await page.evaluate(`window.calls`);
+  await page.evaluate(`window.calls = [];`);
+  return reports.map((report: number[]) => parseReport(encoding, report));
+}
+
+// translate cell positions into pixel offset
+// always adds +2 in each direction so we dont end up in the wrong cell
+// due to rounding issues
+async function cellPos(col: number, row: number): Promise<number[]> {
+  const coords = await page.evaluate(`
+    (function() {
+      const rect = window.term.element.getBoundingClientRect();
+      const dim = term._core._renderService.dimensions;
+      return {left: rect.left, top: rect.top, bottom: rect.bottom, right: rect.right, width: dim.actualCellWidth, height: dim.actualCellHeight};
+    })();
+  `);
+  return [col * coords.width + coords.left + 2, row * coords.height + coords.top + 2];
+}
+
+/**
+ * Patched puppeteer functions.
+ * This is needed to:
+ *  - translate cell positions into pixel positions
+ *  - allow modifiers to be set
+ *  - fake wheel events
+ */
+async function mouseMove(col: number, row: number): Promise<void> {
+  const [xPixels, yPixels] = await cellPos(col, row);
+  return await page.mouse.move(xPixels, yPixels);
+}
+async function mouseClick(col: number, row: number): Promise<void> {
+  const [xPixels, yPixels] = await cellPos(col, row);
+  return await page.mouse.click(xPixels, yPixels);
+}
+async function mouseDown(button: 'left' | 'right' | 'middle' | undefined): Promise<void> {
+  return await page.mouse.down({button});
+}
+async function mouseUp(button: 'left' | 'right' | 'middle' | undefined): Promise<void> {
+  return await page.mouse.up({button});
+}
+async function wheelUp(): Promise<void> {
+  const self = (page.mouse as any);
+  return await page.evaluate(`
+    window.term.element.dispatchEvent(new WheelEvent('wheel', {clientX: ${self._x}, clientY: ${self._y}, deltaX: 0, deltaY: -10, modifiers: ${self._keyboard._modifiers}}));
+  `);
+}
+async function wheelDown(): Promise<void> {
+  const self = (page.mouse as any);
+  return await page.evaluate(`
+    window.term.element.dispatchEvent(new WheelEvent('wheel', {clientX: ${self._x}, clientY: ${self._y}, deltaX: 0, deltaY: 10, modifiers: ${self._keyboard._modifiers}}));
+  `);
+}
+
+// button definitions
+const buttons: {[key: string]: number} = {
+  '<none>':  -1,
+  left:       0,
+  middle:     1,
+  right:      2,
+  released:   3,
+  wheelUp:    4,
+  wheelDown:  5,
+  wheelLeft:  6,
+  wheelRight: 7,
+  aux8:       8,
+  aux9:       9,
+  aux10:      10,
+  aux11:      11,
+  aux12:      12,
+  aux13:      13,
+  aux14:      14,
+  aux15:      15
+};
+const reverseButtons: any = {};
+for (const el in buttons) {
+  reverseButtons[buttons[el]] = el;
+}
+
+// extract button data from buttonCode
+function evalButtonCode(code: number): any {
+  if (code > 255) {
+    return {button: 'invalid', action: 'invalid', modifier: {}};
+  }
+  const modifier = {shift: !!(code & 4), meta: !!(code & 8), control: !!(code & 16)};
+  const move = code & 32;
+  let button = code & 3;
+  if (code & 128) {
+    button |= 8;
+  }
+  if (code & 64) {
+    button |= 4
+  }
+  let actionS = 'press';
+  let buttonS = reverseButtons[button];
+  if (button === 3) {
+    buttonS = '<none>';
+    actionS = 'release';
+  }
+  if (move) {
+    actionS = 'move';
+  } else if (4 <= button && button <= 7) {
+    buttonS = 'wheel';
+    actionS = button === 4 ? 'up' : button === 5 ? 'down' : button === 6 ? 'left' : 'right';
+  }
+  return {button: buttonS, action: actionS, modifier};
+}
+
+// parse a single mouse report
+function parseReport(encoding: string, msg: number[]): {state: any; row: number; col: number; } | string {
+  let sReport: string;
+  let buttonCode: number;
+  let row: number;
+  let col: number;
+  // unpack msg
+  const report = String.fromCharCode.apply(null, msg);
+  // console.log([report]);
+  // skip non mouse reports
+  if (!report || report[0] !== '\x1b') {
+    return report;
+  }
+  switch (encoding) {
+    case 'DEFAULT':
+      return {
+        state: evalButtonCode(report.charCodeAt(3) - 32),
+        col: report.charCodeAt(4) - 32,
+        row: report.charCodeAt(5) - 32
+      };
+    case 'UTF8':
+      // TODO: once the binary patch is in place,
+      // use UTF8 byte check here
+      return {
+        state: evalButtonCode(report.charCodeAt(3) - 32),
+        col: report.charCodeAt(4) - 32,
+        row: report.charCodeAt(5) - 32
+      };
+    case 'SGR':
+      sReport = report.slice(3, -1);
+      [buttonCode, col, row] = sReport.split(';').map(el => parseInt(el));
+      const state = evalButtonCode(buttonCode);
+      if (report[report.length - 1] === 'm') {
+        state.action = 'release';
+      }
+      return {state, row, col};
+    case 'URXVT':
+      sReport = report.slice(2, -1);
+      [buttonCode, col, row] = sReport.split(';').map(el => parseInt(el));
+      return {state: evalButtonCode(buttonCode - 32), row: --row, col: --col}; // FIXME: remove -1 here when fixed!
+    default:
+      return {
+        state: evalButtonCode(report.charCodeAt(3) - 32),
+        col: report.charCodeAt(4) - 32,
+        row: report.charCodeAt(5) - 32
+      };
+  }
+}
+
+/**
+ * Mouse tracking tests.
+ */
+describe('Mouse Tracking Tests', function(): void {
+  this.timeout(30000);
+
+  before(async function(): Promise<any> {
+    browser = await puppeteer.launch({
+      headless: process.argv.indexOf('--headless') !== -1,
+      slowMo: 80,
+      args: [`--window-size=${width},${height}`]
+    });
+    page = (await browser.pages())[0];
+    await page.setViewport({ width, height });
+  });
+
+  after(() => {
+    browser.close();
+  });
+
+  beforeEach(async () => {
+    await page.goto(APP);
+    await openTerminal();
+    // patch terminal to get the onData calls
+    // we encode the msg here to an array of codes to not lose bytes
+    // (transmission strips non utf8 bytes)
+    // also resize so we can properly test the edge cases
+    await page.evaluate(`
+      window.calls = [];
+      window.term.onData(e => calls.push( Array.from(e).map(el => el.charCodeAt(0)) ));
+      window.term.setOption('fontSize', ${fontSize});
+      window.term.resize(${cols}, ${rows});
+    `);
+  });
+
+  describe('DECSET 9 (X10)', async () => {
+    /**
+     * X10 protocol:
+     *  - only press events
+     *  - no wheel
+     *  - no move
+     *  - no modifiers
+     */
+    it('default encoding', async () => {
+      const encoding = 'DEFAULT';
+      await resetMouseModes();
+      await mouseMove(0, 0);
+      await page.evaluate(`window.term.write('\x1b[?9h');`);
+
+      // test at 0,0
+      await mouseDown('left');
+      assert.deepEqual(await getReports(encoding), [{col: 1, row: 1, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // mouseup should not report
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), []);
+
+      // mousemove should not report
+      await mouseMove(50, 10);
+      assert.deepEqual(await getReports(encoding), []);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [{col: 51, row: 11, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // test at max rows/cols
+      // bug: we are capped at col 95 currently
+      // fix: allow values up to 223, any bigger should drop to 0
+      await mouseMove(cols - 1, rows - 1);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [{col: 95, row: rows, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // button press/move/release tests
+      // left button
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+      // middle button
+      // bug: default action not cancelled (adds data to getReports from clipboard under X11)
+      // await mouseMove(43, 24);
+      // await getReports(encoding); // clear reports
+      // await mouseDown('middle');
+      // await mouseMove(44, 24);
+      // await mouseUp('middle');
+      // assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'middle', modifier: {control: false, shift: false, meta: false}}}]);
+      // right button
+      // bug: default action not cancelled (popup shown)
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('right');
+      await mouseMove(44, 24);
+      await mouseUp('right');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'right', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // wheel
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await wheelUp();
+      assert.deepEqual(await getReports(encoding), []);
+      await wheelDown();
+      assert.deepEqual(await getReports(encoding), []);
+
+      // modifiers
+      // CTRL
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+
+      // ALT
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Alt');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Alt');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // SHIFT
+      // note: caught by selection manager
+      // bug? Why not caught by selection manger on macos?
+      // bug: no modifier reported
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Shift');  // defaults to ShiftLeft
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Shift');
+      if (noShift) {
+        assert.deepEqual(await getReports(encoding), []);
+      } else {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      }
+      /*
+      // all modifiers
+      // bug: this is totally broken with wrong coords and messed up modifiers
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await page.keyboard.down('Alt');
+      await page.keyboard.down('Shift');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      await page.keyboard.up('Alt');
+      await page.keyboard.up('Shift');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+      */
+    });
+    it('UTF8 encoding', async () => {
+      const encoding = 'UTF8';
+      await resetMouseModes();
+      await mouseMove(0, 0);
+      await page.evaluate(`window.term.write('\x1b[?9h\x1b[?1005h');`);
+
+      // test at 0,0
+      await mouseDown('left');
+      assert.deepEqual(await getReports(encoding), [{col: 1, row: 1, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // mouseup should not report
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), []);
+
+      // mousemove should not report
+      await mouseMove(50, 10);
+      assert.deepEqual(await getReports(encoding), []);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [{col: 51, row: 11, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // test at max rows/cols
+      await mouseMove(cols - 1, rows - 1);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [{col: cols, row: rows, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // button press/move/release tests
+      // left button
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+      // middle button
+      // bug: default action not cancelled (adds data to getReports from clipboard under X11)
+      // await mouseMove(43, 24);
+      // await getReports(encoding); // clear reports
+      // await mouseDown('middle');
+      // await mouseMove(44, 24);
+      // await mouseUp('middle');
+      // assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'middle', modifier: {control: false, shift: false, meta: false}}}]);
+      // right button
+      // bug: default action not cancelled (popup shown)
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('right');
+      await mouseMove(44, 24);
+      await mouseUp('right');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'right', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // wheel
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await wheelUp();
+      assert.deepEqual(await getReports(encoding), []);
+      await wheelDown();
+      assert.deepEqual(await getReports(encoding), []);
+
+      // modifiers
+      // CTRL
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+
+      // ALT
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Alt');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Alt');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // SHIFT
+      // note: caught by selection manager
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Shift');  // defaults to ShiftLeft
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Shift');
+      if (noShift) {
+        assert.deepEqual(await getReports(encoding), []);
+      } else {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      }
+      /*
+      // all modifiers
+      // bug: this is totally broken with wrong coords and messed up modifiers
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await page.keyboard.down('Alt');
+      await page.keyboard.down('Shift');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      await page.keyboard.up('Alt');
+      await page.keyboard.up('Shift');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+      */
+    });
+    it('SGR encoding', async () => {
+      const encoding = 'SGR';
+      await resetMouseModes();
+      await mouseMove(0, 0);
+      await page.evaluate(`window.term.write('\x1b[?9h\x1b[?1006h');`);
+
+      // test at 0,0
+      await mouseDown('left');
+      assert.deepEqual(await getReports(encoding), [{col: 1, row: 1, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // mouseup should not report
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), []);
+
+      // mousemove should not report
+      await mouseMove(50, 10);
+      assert.deepEqual(await getReports(encoding), []);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [{col: 51, row: 11, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // test at max rows/cols
+      await mouseMove(cols - 1, rows - 1);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [{col: cols, row: rows, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // button press/move/release tests
+      // left button
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+      // middle button
+      // bug: default action not cancelled (adds data to getReports from clipboard under X11)
+      // await mouseMove(43, 24);
+      // await getReports(encoding); // clear reports
+      // await mouseDown('middle');
+      // await mouseMove(44, 24);
+      // await mouseUp('middle');
+      // assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'middle', modifier: {control: false, shift: false, meta: false}}}]);
+      // right button
+      // bug: default action not cancelled (popup shown)
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('right');
+      await mouseMove(44, 24);
+      await mouseUp('right');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'right', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // wheel
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await wheelUp();
+      assert.deepEqual(await getReports(encoding), []);
+      await wheelDown();
+      assert.deepEqual(await getReports(encoding), []);
+
+      // modifiers
+      // CTRL
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+
+      // ALT
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Alt');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Alt');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // SHIFT
+      // note: caught by selection manager
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Shift');  // defaults to ShiftLeft
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Shift');
+      if (noShift) {
+        assert.deepEqual(await getReports(encoding), []);
+      } else {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      }
+      /*
+      // all modifiers
+      // bug: this is totally broken with wrong coords and messed up modifiers
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await page.keyboard.down('Alt');
+      await page.keyboard.down('Shift');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      await page.keyboard.up('Alt');
+      await page.keyboard.up('Shift');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+      */
+    });
+    it('URXVT encoding', async () => {
+      // bug: always reports +1 for row/col (temp. fixed in parseReport to pass tests)
+      const encoding = 'URXVT';
+      await resetMouseModes();
+      await mouseMove(0, 0);
+      await page.evaluate(`window.term.write('\x1b[?9h\x1b[?1015h');`);
+
+      // test at 0,0
+      await mouseDown('left');
+      assert.deepEqual(await getReports(encoding), [{col: 1, row: 1, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // mouseup should not report
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), []);
+
+      // mousemove should not report
+      await mouseMove(50, 10);
+      assert.deepEqual(await getReports(encoding), []);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [{col: 51, row: 11, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // test at max rows/cols
+      await mouseMove(cols - 1, rows - 1);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [{col: cols, row: rows, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // button press/move/release tests
+      // left button
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+      // middle button
+      // bug: default action not cancelled (adds data to getReports from clipboard under X11)
+      // await mouseMove(43, 24);
+      // await getReports(encoding); // clear reports
+      // await mouseDown('middle');
+      // await mouseMove(44, 24);
+      // await mouseUp('middle');
+      // assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'middle', modifier: {control: false, shift: false, meta: false}}}]);
+      // right button
+      // bug: default action not cancelled (popup shown)
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('right');
+      await mouseMove(44, 24);
+      await mouseUp('right');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'right', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // wheel
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await wheelUp();
+      assert.deepEqual(await getReports(encoding), []);
+      await wheelDown();
+      assert.deepEqual(await getReports(encoding), []);
+
+      // modifiers
+      // CTRL
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+
+      // ALT
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Alt');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Alt');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // SHIFT
+      // note: caught by selection manager
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Shift');  // defaults to ShiftLeft
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Shift');
+      if (noShift) {
+        assert.deepEqual(await getReports(encoding), []);
+      } else {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      }
+      /*
+      // all modifiers
+      // bug: this is totally broken with wrong coords and messed up modifiers
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await page.keyboard.down('Alt');
+      await page.keyboard.down('Shift');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      await page.keyboard.up('Alt');
+      await page.keyboard.up('Shift');
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}]);
+      */
+    });
+  });
+  describe('DECSET 1000 (VT200 mouse)', () => {
+    /**
+     * VT200 protocol:
+     *  - press and release events
+     *  - wheel up/down
+     *  - no move
+     *  - all modifiers
+     */
+    it('default encoding', async () => {
+      const encoding = 'DEFAULT';
+      await resetMouseModes();
+      await mouseMove(0, 0);
+      await page.evaluate(`window.term.write('\x1b[?1000h');`);
+
+      // test at 0,0
+      // bug: release is fired immediately - expected: only press event
+      await mouseDown('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 1, row: 1, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 1, row: 1, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // mouseup should report, encoding cannot report released button
+      // bug: release already fired thus no event here - expected: release event
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), []);
+
+      // mousemove should not report
+      await mouseMove(50, 10);
+      assert.deepEqual(await getReports(encoding), []);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 51, row: 11, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 51, row: 11, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // test at max rows/cols
+      // bug: we are capped at col 95 currently
+      // fix: allow values up to 223, any bigger should drop to 0
+      await mouseMove(cols - 1, rows - 1);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 95, row: rows, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 95, row: rows, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // button press/move/release tests
+      // left button
+      // bug: release is fired immediately thus with wrong coords - expected: col in release event should be 45
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+      // middle button
+      // bug: default action not cancelled (adds data to getReports from clipboard under X11)
+      // await mouseMove(43, 24);
+      // await getReports(encoding); // clear reports
+      // await mouseDown('middle');
+      // await mouseMove(44, 24);
+      // await mouseUp('middle');
+      // assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'middle', modifier: {control: false, shift: false, meta: false}}}]);
+      // right button
+      // bug: default action not cancelled (popup shown)
+      // bug: release is fired immediately thus with wrong coords - expected: col in release event should be 45
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('right');
+      await mouseMove(44, 24);
+      await mouseUp('right');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'right', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // wheel
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await wheelUp();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'up', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+      await wheelDown();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // modifiers
+      // CTRL
+      // bug: totally broken - reports no modifier, reports wrong button and action, reports wrong coords for release
+      // after fix: removed faulty reports below and uncomment lines
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      // await page.keyboard.down('Control');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      // await page.keyboard.up('Control');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: false, meta: false}}}
+      ]);
+
+      // ALT
+      // bug: no modifier reported, release with wrong coords
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Alt');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Alt');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: true}}}
+      ]);
+
+      // SHIFT
+      // note: press/release caught by selection manager
+      // bug: modifier not reported for passed events
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Shift');  // defaults to ShiftLeft
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Shift');
+      if (noShift) {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      } else {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+          {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      }
+
+      /*
+      // all modifiers
+      // bug: this is totally broken with wrong coords and messed up modifiers
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await page.keyboard.down('Alt');
+      await page.keyboard.down('Shift');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      await page.keyboard.up('Alt');
+      await page.keyboard.up('Shift');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: true, meta: true}}}
+      ]);
+      */
+    });
+    it('UTF8 encoding', async () => {
+      const encoding = 'UTF8';
+      await resetMouseModes();
+      await mouseMove(0, 0);
+      await page.evaluate(`window.term.write('\x1b[?1000h\x1b[?1005h');`);
+
+      // test at 0,0
+      // bug: release is fired immediately - expected: only press event
+      await mouseDown('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 1, row: 1, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 1, row: 1, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // mouseup should report, encoding cannot report released button
+      // bug: release already fired thus no event here - expected: release event
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), []);
+
+      // mousemove should not report
+      await mouseMove(50, 10);
+      assert.deepEqual(await getReports(encoding), []);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 51, row: 11, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 51, row: 11, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // test at max rows/cols
+      await mouseMove(cols - 1, rows - 1);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: cols, row: rows, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: cols, row: rows, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // button press/move/release tests
+      // left button
+      // bug: release is fired immediately thus with wrong coords - expected: col in release event should be 45
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+      // middle button
+      // bug: default action not cancelled (adds data to getReports from clipboard under X11)
+      // await mouseMove(43, 24);
+      // await getReports(encoding); // clear reports
+      // await mouseDown('middle');
+      // await mouseMove(44, 24);
+      // await mouseUp('middle');
+      // assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'middle', modifier: {control: false, shift: false, meta: false}}}]);
+      // right button
+      // bug: default action not cancelled (popup shown)
+      // bug: release is fired immediately thus with wrong coords - expected: col in release event should be 45
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('right');
+      await mouseMove(44, 24);
+      await mouseUp('right');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'right', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // wheel
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await wheelUp();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'up', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+      await wheelDown();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // modifiers
+      // CTRL
+      // bug: totally broken - reports no modifier, reports wrong button and action, reports wrong coords for release
+      // after fix: removed faulty reports below and uncomment lines
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      // await page.keyboard.down('Control');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      // await page.keyboard.up('Control');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: false, meta: false}}}
+      ]);
+
+      // ALT
+      // bug: no modifier reported, release with wrong coords
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Alt');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Alt');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: true}}}
+      ]);
+
+      // SHIFT
+      // note: press/release caught by selection manager
+      // bug: modifier not reported for passed events
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Shift');  // defaults to ShiftLeft
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Shift');
+      if (noShift) {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      } else {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+          {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      }
+
+      /*
+      // all modifiers
+      // bug: this is totally broken with wrong coords and messed up modifiers
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await page.keyboard.down('Alt');
+      await page.keyboard.down('Shift');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      await page.keyboard.up('Alt');
+      await page.keyboard.up('Shift');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: true, meta: true}}}
+      ]);
+      */
+    });
+    it('SGR encoding', async () => {
+      const encoding = 'SGR';
+      await resetMouseModes();
+      await mouseMove(0, 0);
+      await page.evaluate(`window.term.write('\x1b[?1000h\x1b[?1006h');`);
+
+      // test at 0,0
+      // bug: release is fired immediately - expected: only press event
+      await mouseDown('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 1, row: 1, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 1, row: 1, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // mouseup should report
+      // bug: release already fired thus no event here - expected: release event
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), []);
+
+      // mousemove should not report
+      await mouseMove(50, 10);
+      assert.deepEqual(await getReports(encoding), []);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 51, row: 11, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 51, row: 11, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // test at max rows/cols
+      await mouseMove(cols - 1, rows - 1);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: cols, row: rows, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: cols, row: rows, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // button press/move/release tests
+      // left button
+      // bug: release is fired immediately thus with wrong coords - expected: col in release event should be 45
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+      // middle button
+      // bug: default action not cancelled (adds data to getReports from clipboard under X11)
+      // await mouseMove(43, 24);
+      // await getReports(encoding); // clear reports
+      // await mouseDown('middle');
+      // await mouseMove(44, 24);
+      // await mouseUp('middle');
+      // assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'middle', modifier: {control: false, shift: false, meta: false}}}]);
+      // right button
+      // bug: default action not cancelled (popup shown)
+      // bug: release is fired immediately thus with wrong coords - expected: col in release event should be 45
+      // bug: release reports wrong button
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('right');
+      await mouseMove(44, 24);
+      await mouseUp('right');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'right', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // wheel
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await wheelUp();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'up', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+      await wheelDown();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // modifiers
+      // CTRL
+      // bug: totally broken - reports no modifier, reports wrong button and action, reports wrong coords for release
+      // after fix: removed faulty reports below and uncomment lines
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      // await page.keyboard.down('Control');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      // await page.keyboard.up('Control');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: false, meta: false}}}
+      ]);
+
+      // ALT
+      // bug: no modifier reported, release with wrong coords
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Alt');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Alt');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: true}}}
+      ]);
+
+      // SHIFT
+      // note: press/release caught by selection manager
+      // bug: modifier not reported for passed events
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Shift');  // defaults to ShiftLeft
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Shift');
+      if (noShift) {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      } else {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+          {col: 44, row: 25, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      }
+
+      /*
+      // all modifiers
+      // bug: this is totally broken with wrong coords and messed up modifiers
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await page.keyboard.down('Alt');
+      await page.keyboard.down('Shift');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      await page.keyboard.up('Alt');
+      await page.keyboard.up('Shift');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'release', button: 'left', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: true, meta: true}}}
+      ]);
+      */
+    });
+    it('URXVT encoding', async () => {
+      const encoding = 'URXVT';
+      await resetMouseModes();
+      await mouseMove(0, 0);
+      await page.evaluate(`window.term.write('\x1b[?1000h\x1b[?1015h');`);
+
+      // test at 0,0
+      // bug: release is fired immediately - expected: only press event
+      await mouseDown('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 1, row: 1, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 1, row: 1, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // mouseup should report, encoding cannot report released button
+      // bug: release already fired thus no event here - expected: release event
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), []);
+
+      // mousemove should not report
+      await mouseMove(50, 10);
+      assert.deepEqual(await getReports(encoding), []);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 51, row: 11, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 51, row: 11, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // test at max rows/cols
+      await mouseMove(cols - 1, rows - 1);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: cols, row: rows, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: cols, row: rows, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // button press/move/release tests
+      // left button
+      // bug: release is fired immediately thus with wrong coords - expected: col in release event should be 45
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+      // middle button
+      // bug: default action not cancelled (adds data to getReports from clipboard under X11)
+      // await mouseMove(43, 24);
+      // await getReports(encoding); // clear reports
+      // await mouseDown('middle');
+      // await mouseMove(44, 24);
+      // await mouseUp('middle');
+      // assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'middle', modifier: {control: false, shift: false, meta: false}}}]);
+      // right button
+      // bug: default action not cancelled (popup shown)
+      // bug: release is fired immediately thus with wrong coords - expected: col in release event should be 45
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('right');
+      await mouseMove(44, 24);
+      await mouseUp('right');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'right', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // wheel
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await wheelUp();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'up', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+      await wheelDown();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // modifiers
+      // CTRL
+      // bug: totally broken - reports no modifier, reports wrong button and action, reports wrong coords for release
+      // after fix: removed faulty reports below and uncomment lines
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      // await page.keyboard.down('Control');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      // await page.keyboard.up('Control');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: false, meta: false}}}
+      ]);
+
+      // ALT
+      // bug: no modifier reported, release with wrong coords
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Alt');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Alt');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: true}}}
+      ]);
+
+      // SHIFT
+      // note: press/release caught by selection manager
+      // bug: modifier not reported for passed events
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Shift');  // defaults to ShiftLeft
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Shift');
+      if (noShift) {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      } else {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+          {col: 44, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      }
+
+      /*
+      // all modifiers
+      // bug: this is totally broken with wrong coords and messed up modifiers
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await page.keyboard.down('Alt');
+      await page.keyboard.down('Shift');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      await page.keyboard.up('Alt');
+      await page.keyboard.up('Shift');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: true, meta: true}}}
+      ]);
+      */
+    });
+  });
+  describe('DECSET 1002 (xterm with drag)', () => {
+    /**
+     * VT200 protocol:
+     *  - press and release events
+     *  - wheel up/down
+     *  - move only on press (drag)
+     *  - all modifiers
+     * Note: tmux runs this with SGR encoding.
+     */
+    it('default encoding', async () => {
+      const encoding = 'DEFAULT';
+      await resetMouseModes();
+      await mouseMove(0, 0);
+      await page.evaluate(`window.term.write('\x1b[?1002h');`);
+
+      // test at 0,0
+      await mouseDown('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 1, row: 1, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // mouseup should report, encoding cannot report released button
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 1, row: 1, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // mousemove should not report
+      await mouseMove(50, 10);
+      assert.deepEqual(await getReports(encoding), []);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 51, row: 11, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 51, row: 11, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // test at max rows/cols
+      // bug: we are capped at col 95 currently
+      // fix: allow values up to 223, any bigger should drop to 0
+      await mouseMove(cols - 1, rows - 1);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 95, row: rows, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 95, row: rows, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // button press/move/release tests
+      // left button
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+      // middle button
+      // bug: default action not cancelled (adds data to getReports from clipboard under X11)
+      // await mouseMove(43, 24);
+      // await getReports(encoding); // clear reports
+      // await mouseDown('middle');
+      // await mouseMove(44, 24);
+      // await mouseUp('middle');
+      // assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'middle', modifier: {control: false, shift: false, meta: false}}}]);
+      // right button
+      // bug: default action not cancelled (popup shown)
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('right');
+      await mouseMove(44, 24);
+      await mouseUp('right');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'right', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'right', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // wheel
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await wheelUp();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'up', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+      await wheelDown();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // modifiers
+      // CTRL
+      // bug: totally broken - reports no modifier, reports wrong button and action
+      // after fix: removed faulty reports below and uncomment lines
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      // await page.keyboard.down('Control');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      // await page.keyboard.up('Control');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: false, meta: false}}}
+      ]);
+
+      // ALT
+      // bug: no modifier reported
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Alt');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Alt');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: true}}}
+      ]);
+
+      // SHIFT
+      // note: press/release/drag caught by selection manager
+      // bug: modifier not reported for passed events
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Shift');  // defaults to ShiftLeft
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Shift');
+      if (noShift) {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      } else {
+        // bug: completely messed up - wrong modifier, only partially reported
+        assert.deepEqual(await getReports(encoding), [
+          {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      }
+
+      /*
+      // all modifiers
+      // bug: this is totally broken with wrong coords and messed up modifiers
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await page.keyboard.down('Alt');
+      await page.keyboard.down('Shift');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      await page.keyboard.up('Alt');
+      await page.keyboard.up('Shift');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: true, meta: true}}}
+      ]);
+      */
+    });
+    it('UTF8 encoding', async () => {
+      const encoding = 'UTF8';
+      await resetMouseModes();
+      await mouseMove(0, 0);
+      await page.evaluate(`window.term.write('\x1b[?1002h\x1b[?1005h');`);
+
+      // test at 0,0
+      // bug: release is fired immediately
+      await mouseDown('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 1, row: 1, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // mouseup should report, encoding cannot report released button
+      // bug: release already fired thus no event here - expected: release event
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 1, row: 1, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // mousemove should not report
+      await mouseMove(50, 10);
+      assert.deepEqual(await getReports(encoding), []);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 51, row: 11, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 51, row: 11, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // test at max rows/cols
+      await mouseMove(cols - 1, rows - 1);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: cols, row: rows, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: cols, row: rows, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // button press/move/release tests
+      // left button
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+      // middle button
+      // bug: default action not cancelled (adds data to getReports from clipboard under X11)
+      // await mouseMove(43, 24);
+      // await getReports(encoding); // clear reports
+      // await mouseDown('middle');
+      // await mouseMove(44, 24);
+      // await mouseUp('middle');
+      // assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'middle', modifier: {control: false, shift: false, meta: false}}}]);
+      // right button
+      // bug: default action not cancelled (popup shown)
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('right');
+      await mouseMove(44, 24);
+      await mouseUp('right');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'right', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'right', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // wheel
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await wheelUp();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'up', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+      await wheelDown();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // modifiers
+      // CTRL
+      // bug: totally broken - reports no modifier, reports wrong button and action
+      // after fix: removed faulty reports below and uncomment lines
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      // await page.keyboard.down('Control');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      // await page.keyboard.up('Control');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: false, meta: false}}}
+      ]);
+
+      // ALT
+      // bug: no modifier reported
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Alt');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Alt');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: true}}}
+      ]);
+
+      // SHIFT
+      // note: press/release/drag caught by selection manager
+      // bug: modifier not reported for passed events
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Shift');  // defaults to ShiftLeft
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Shift');
+      if (noShift) {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      } else {
+        // bug: completely messed up - wrong modifier, only partially reported
+        assert.deepEqual(await getReports(encoding), [
+          {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      }
+
+      /*
+      // all modifiers
+      // bug: this is totally broken with wrong coords and messed up modifiers
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await page.keyboard.down('Alt');
+      await page.keyboard.down('Shift');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      await page.keyboard.up('Alt');
+      await page.keyboard.up('Shift');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: true, meta: true}}}
+      ]);
+      */
+    });
+    it('SGR encoding', async () => {
+      const encoding = 'SGR';
+      await resetMouseModes();
+      await mouseMove(0, 0);
+      await page.evaluate(`window.term.write('\x1b[?1002h\x1b[?1006h');`);
+
+      // test at 0,0
+      // bug: release is fired immediately
+      await mouseDown('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 1, row: 1, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // mouseup should report, encoding cannot report released button
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 1, row: 1, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // mousemove should not report
+      await mouseMove(50, 10);
+      assert.deepEqual(await getReports(encoding), []);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 51, row: 11, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 51, row: 11, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // test at max rows/cols
+      await mouseMove(cols - 1, rows - 1);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: cols, row: rows, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: cols, row: rows, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // button press/move/release tests
+      // left button
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+      // middle button
+      // bug: default action not cancelled (adds data to getReports from clipboard under X11)
+      // await mouseMove(43, 24);
+      // await getReports(encoding); // clear reports
+      // await mouseDown('middle');
+      // await mouseMove(44, 24);
+      // await mouseUp('middle');
+      // assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'middle', modifier: {control: false, shift: false, meta: false}}}]);
+      // right button
+      // bug: default action not cancelled (popup shown)
+      // bug: release reports wrong button
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('right');
+      await mouseMove(44, 24);
+      await mouseUp('right');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'right', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'right', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // wheel
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await wheelUp();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'up', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+      await wheelDown();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // modifiers
+      // CTRL
+      // bug: totally broken - reports no modifier, reports wrong button and action
+      // after fix: removed faulty reports below and uncomment lines
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      // await page.keyboard.down('Control');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      // await page.keyboard.up('Control');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'release', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: false, meta: false}}}
+      ]);
+
+      // ALT
+      // bug: no modifier reported
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Alt');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Alt');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'release', button: 'left', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: true}}}
+      ]);
+
+      // SHIFT
+      // note: press/release/drag caught by selection manager
+      // bug: modifier not reported for passed events
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Shift');  // defaults to ShiftLeft
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Shift');
+      if (noShift) {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      } else {
+        // bug: completely messed up - wrong modifier, only partially reported
+        assert.deepEqual(await getReports(encoding), [
+          {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'release', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      }
+
+      /*
+      // all modifiers
+      // bug: this is totally broken with wrong coords and messed up modifiers
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await page.keyboard.down('Alt');
+      await page.keyboard.down('Shift');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      await page.keyboard.up('Alt');
+      await page.keyboard.up('Shift');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'release', button: 'left', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: true, meta: true}}}
+      ]);
+      */
+    });
+    it('URXVT encoding', async () => {
+      const encoding = 'URXVT';
+      await resetMouseModes();
+      await mouseMove(0, 0);
+      await page.evaluate(`window.term.write('\x1b[?1002h\x1b[?1015h');`);
+
+      // test at 0,0
+      // bug: release is fired immediately
+      await mouseDown('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 1, row: 1, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // mouseup should report, encoding cannot report released button
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 1, row: 1, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // mousemove should not report
+      await mouseMove(50, 10);
+      assert.deepEqual(await getReports(encoding), []);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 51, row: 11, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 51, row: 11, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // test at max rows/cols
+      await mouseMove(cols - 1, rows - 1);
+      await mouseDown('left');
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: cols, row: rows, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: cols, row: rows, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // button press/move/release tests
+      // left button
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+      // middle button
+      // bug: default action not cancelled (adds data to getReports from clipboard under X11)
+      // await mouseMove(43, 24);
+      // await getReports(encoding); // clear reports
+      // await mouseDown('middle');
+      // await mouseMove(44, 24);
+      // await mouseUp('middle');
+      // assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'press', button: 'middle', modifier: {control: false, shift: false, meta: false}}}]);
+      // right button
+      // bug: default action not cancelled (popup shown)
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await mouseDown('right');
+      await mouseMove(44, 24);
+      await mouseUp('right');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'right', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'right', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}}
+      ]);
+
+      // wheel
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await wheelUp();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'up', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+      await wheelDown();
+      assert.deepEqual(await getReports(encoding), [{col: 44, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}]);
+
+      // modifiers
+      // CTRL
+      // bug: totally broken - reports no modifier, reports wrong button and action
+      // after fix: removed faulty reports below and uncomment lines
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      // await page.keyboard.down('Control');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      // await page.keyboard.up('Control');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: false, meta: false}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: false, meta: false}}}
+      ]);
+
+      // ALT
+      // bug: no modifier reported
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Alt');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Alt');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: false}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        // expected
+        // {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: false, shift: false, meta: true}}},
+        // {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: true}}}
+      ]);
+
+      // SHIFT
+      // note: press/release/drag caught by selection manager
+      // bug: modifier not reported for passed events
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Shift');  // defaults to ShiftLeft
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Shift');
+      if (noShift) {
+        assert.deepEqual(await getReports(encoding), [
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      } else {
+        // bug: completely messed up - wrong modifier, only partially reported
+        assert.deepEqual(await getReports(encoding), [
+          {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: true, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: false, meta: false}}},
+          {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: false, shift: false, meta: false}}}
+        ]);
+      }
+
+      /*
+      // all modifiers
+      // bug: this is totally broken with wrong coords and messed up modifiers
+      await mouseMove(43, 24);
+      await getReports(encoding); // clear reports
+      await page.keyboard.down('Control');
+      await page.keyboard.down('Alt');
+      await page.keyboard.down('Shift');
+      await mouseDown('left');
+      await mouseMove(44, 24);
+      await mouseUp('left');
+      await wheelDown();
+      await page.keyboard.up('Control');
+      await page.keyboard.up('Alt');
+      await page.keyboard.up('Shift');
+      assert.deepEqual(await getReports(encoding), [
+        {col: 44, row: 25, state: {action: 'press', button: 'left', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'move', button: 'left', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'release', button: '<none>', modifier: {control: true, shift: true, meta: true}}},
+        {col: 45, row: 25, state: {action: 'down', button: 'wheel', modifier: {control: true, shift: true, meta: true}}}
+      ]);
+      */
+    });
+  });
+  describe('DECSET 1003 (xterm any event)', () => {
+    /**
+     * VT200 protocol:
+     *  - all events (press, release, wheel, move)
+     *  - all modifiers
+     */
+    // bug: currently same reports as 1002, FIXME: implement tests once fixed
+  });
+  // TODO: move tests with several buttons pressed
+});