gecko/browser/devtools/webconsole/test/browser_webconsole_js_input_expansion.js

61 lines
2.0 KiB
JavaScript

/* vim:set ts=2 sw=2 sts=2 et: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// Tests that the input box expands as the user types long lines.
const TEST_URI = "http://example.com/browser/browser/devtools/webconsole/test/test-console.html";
function test() {
addTab(TEST_URI);
browser.addEventListener("load", function onLoad() {
browser.removeEventListener("load", onLoad, true);
openConsole(null, testJSInputExpansion);
}, true);
}
function testJSInputExpansion(hud) {
let jsterm = hud.jsterm;
let input = jsterm.inputNode;
input.focus();
is(input.getAttribute("multiline"), "true", "multiline is enabled");
// Tests if the inputNode expands.
input.value = "hello\nworld\n";
let length = input.value.length;
input.selectionEnd = length;
input.selectionStart = length;
function getHeight()
{
return input.clientHeight;
}
let initialHeight = getHeight();
// Performs an "d". This will trigger/test for the input event that should
// change the "row" attribute of the inputNode.
EventUtils.synthesizeKey("d", {});
let newHeight = getHeight();
ok(initialHeight < newHeight, "Height changed: " + newHeight);
// Add some more rows. Tests for the 8 row limit.
input.value = "row1\nrow2\nrow3\nrow4\nrow5\nrow6\nrow7\nrow8\nrow9\nrow10\n";
length = input.value.length;
input.selectionEnd = length;
input.selectionStart = length;
EventUtils.synthesizeKey("d", {});
let newerHeight = getHeight();
ok(newerHeight > newHeight, "height changed: " + newerHeight);
// Test if the inputNode shrinks again.
input.value = "";
EventUtils.synthesizeKey("d", {});
let height = getHeight();
info("height: " + height);
info("initialHeight: " + initialHeight);
let finalHeightDifference = Math.abs(initialHeight - height);
ok(finalHeightDifference <= 1, "height shrank to original size within 1px");
finishTest();
}