attempt to lock clipboard

e2e-tests/editor.spec.ts

@@ -1,9 +1,14 @@
 import { expect } from '@playwright/test'
 import { test } from './fixtures'
-import { createRandomPage, enterNextBlock, modKey } from './utils'
+import { createRandomPage, enterNextBlock, modKey, lockClipboard } from './utils'
 import { dispatch_kb_events } from './util/keyboard-events'
+import { UnlockFunction } from 'cross-process-lock';
 import * as kb_events from './util/keyboard-events'
 
+let unlock: UnlockFunction;
+test.beforeEach(async () => { unlock = await lockClipboard() });
+test.afterEach(async () => await unlock());
+
 test('hashtag and quare brackets in same line #4178', async ({ page }) => {
   await createRandomPage(page)
 

e2e-tests/utils.ts

@@ -3,6 +3,8 @@ import { expect, ConsoleMessage } from '@playwright/test'
 import * as process from 'process'
 import { Block } from './types'
 import * as pathlib from 'path'
+import { lock, UnlockFunction } from 'cross-process-lock';
+import { writeFileSync, existsSync } from 'fs';
 
 export const IsMac = process.platform === 'darwin'
 export const IsLinux = process.platform === 'linux'
@@ -280,3 +282,14 @@ export async function getIsWebAPIClipboardSupported(page: Page): Promise<boolean
   // @ts-ignore "clipboard-write" is not included in TS's type definition for permissionName
   return await queryPermission(page, "clipboard-write") && await doesClipboardItemExists(page)
 }
+
+// It should lock clipboard tests so that we can run one test at a time.
+// Copied from https://github.com/microsoft/playwright/issues/13097#issuecomment-1445271511
+export const lockClipboard = async (): Promise<UnlockFunction> => {
+  const name = 'tmp/clipboard'
+
+  if (!existsSync(name))
+    writeFileSync(name, '', 'utf8')
+
+  return await lock(name, { waitTimeout: 30000 })
+};

e2e-tests/whiteboards.spec.ts

@@ -1,6 +1,11 @@
 import { expect } from '@playwright/test'
 import { test } from './fixtures'
-import { modKey } from './utils'
+import { modKey, lockClipboard } from './utils'
+import { UnlockFunction } from 'cross-process-lock';
+
+let unlock: UnlockFunction;
+test.beforeEach(async () => { unlock = await lockClipboard() });
+test.afterEach(async () => await unlock());
 
 test('enable whiteboards', async ({ page }) => {
   await expect(page.locator('.nav-header .whiteboard')).toBeHidden()

package.json

@@ -14,6 +14,7 @@
         "@types/gulp": "^4.0.7",
         "autoprefixer": "^10.4.13",
         "cross-env": "^7.0.3",
+        "cross-process-lock": "^2.1.0",
         "cssnano": "^5.1.13",
         "del": "^6.0.0",
         "gulp": "^4.0.2",

yarn.lock

@@ -2043,6 +2043,14 @@ cross-env@^7.0.3:
   dependencies:
     cross-spawn "^7.0.1"
 
+cross-process-lock@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/cross-process-lock/-/cross-process-lock-2.1.0.tgz#820c5ad7bfab3ac6ad58366cabfa0b068f277e59"
+  integrity sha512-aB/oyutqsmkI59L3VNFkvFiiuAvEoczhD2n6Twu5p/zNYUc7hnMNLexiJFGyYBvqSQKIJCjFnC57yqoC8o7UEw==
+  dependencies:
+    debug "^4.3.4"
+    tslib "^2.5.0"
+
 cross-spawn@^6.0.0, cross-spawn@^6.0.5:
   version "6.0.5"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-6.0.5.tgz#4a5ec7c64dfae22c3a14124dbacdee846d80cbc4"
@@ -7255,6 +7263,11 @@ tslib@^2.0.1, tslib@^2.1.0, tslib@^2.4.0:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.4.0.tgz#7cecaa7f073ce680a05847aa77be941098f36dc3"
   integrity sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ==
 
+tslib@^2.5.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.5.0.tgz#42bfed86f5787aeb41d031866c8f402429e0fddf"
+  integrity sha512-336iVw3rtn2BUK7ORdIAHTyxHGRIHVReokCR3XjbckJMK7ms8FysBfhLR8IXnAgy7T0PTPNBWKiH514FOW/WSg==
+
 [email protected]:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/tty-browserify/-/tty-browserify-0.0.0.tgz#a157ba402da24e9bf957f9aa69d524eed42901a6"