diff --git a/test/api/CharWidth.api.ts b/test/api/CharWidth.api.ts
deleted file mode 100644
index 43d5ab20..00000000
--- a/test/api/CharWidth.api.ts
+++ /dev/null
@@ -1,96 +0,0 @@
-/**
- * Copyright (c) 2017 The xterm.js authors. All rights reserved.
- * @license MIT
- */
-
-import { pollFor, openTerminal, launchBrowser } from './TestUtils';
-import { Browser, Page } from '@playwright/test';
-
-const APP = 'http://127.0.0.1:3001/test';
-
-let browser: Browser;
-let page: Page;
-const width = 800;
-const height = 600;
-
-describe('CharWidth Integration Tests', function(): void {
-  before(async function(): Promise<any> {
-    browser = await launchBrowser();
-    page = await (await browser.newContext()).newPage();
-    await page.setViewportSize({ width, height });
-    await page.goto(APP);
-    await openTerminal(page, { rows: 5, cols: 30 });
-  });
-
-  after(() => {
-    browser.close();
-  });
-
-  describe('getStringCellWidth', () => {
-    beforeEach(async () => {
-      await page.evaluate(`window.term.reset()`);
-    });
-
-    it('ASCII chars', async function(): Promise<void> {
-      const input = 'This is just ASCII text.#';
-      await page.evaluate(`window.term.write('${input}')`);
-      await pollFor(page, () => sumWidths(0, 1, '#'), 25);
-    });
-
-    it('combining chars', async function(): Promise<void> {
-      const input = 'e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301e\u0301#';
-      await page.evaluate(`window.term.write('${input}')`);
-      await pollFor(page, () => sumWidths(0, 1, '#'), 10);
-    });
-
-    it('surrogate chars', async function(): Promise<void> {
-      const input = '𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞𝄞#';
-      await page.evaluate(`window.term.write('${input}')`);
-      await pollFor(page, () => sumWidths(0, 1, '#'), 28);
-    });
-
-    it('surrogate combining chars', async function(): Promise<void> {
-      const input = '𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301𓂀\u0301#';
-      await page.evaluate(`window.term.write('${input}')`);
-      await pollFor(page, () => sumWidths(0, 1, '#'), 12);
-    });
-
-    it('fullwidth chars', async function(): Promise<void> {
-      const input = '１２３４５６７８９０#';
-      await page.evaluate(`window.term.write('${input}')`);
-      await pollFor(page, () => sumWidths(0, 1, '#'), 21);
-    });
-
-    it('fullwidth chars offset 1', async function(): Promise<void> {
-      const input = 'a１２３４５６７８９０#';
-      await page.evaluate(`window.term.write('${input}')`);
-      await pollFor(page, () => sumWidths(0, 1, '#'), 22);
-    });
-
-    // TODO: multiline tests once #1685 is resolved
-  });
-});
-
-async function sumWidths(start: number, end: number, sentinel: string): Promise<number> {
-  await page.evaluate(`
-    (function() {
-      window.result = 0;
-      const buffer = window.term.buffer.active;
-      for (let i = ${start}; i < ${end}; i++) {
-        const line = buffer.getLine(i);
-        let j = 0;
-        while (true) {
-          const cell = line.getCell(j++);
-          if (!cell) {
-            break;
-          }
-          window.result += cell.getWidth();
-          if (cell.getChars() === '${sentinel}') {
-            return;
-          }
-        }
-      }
-    })();
-  `);
-  return await page.evaluate(`window.result`);
-}