[Init] Initial commit - NetMesh terminal manager

components/terminal/terminalThemeScheduler.test.ts

@@ -0,0 +1,82 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import {
+  cancelTerminalThemeUpdate,
+  resetTerminalThemeSchedulerForTests,
+  scheduleTerminalThemeUpdate,
+} from './terminalThemeScheduler';
+import type { TerminalTheme } from '../../domain/models';
+
+const theme = (id: string): TerminalTheme => ({
+  id,
+  name: id,
+  type: 'dark',
+  colors: {
+    background: '#111111',
+    foreground: '#eeeeee',
+    cursor: '#22aaff',
+    selection: '#22aaff44',
+    black: '#000',
+    red: '#000',
+    green: '#000',
+    yellow: '#000',
+    blue: '#000',
+    magenta: '#000',
+    cyan: '#000',
+    white: '#fff',
+    brightBlack: '#000',
+    brightRed: '#000',
+    brightGreen: '#000',
+    brightYellow: '#000',
+    brightBlue: '#000',
+    brightMagenta: '#000',
+    brightCyan: '#000',
+    brightWhite: '#fff',
+  },
+});
+
+test('cancelTerminalThemeUpdate drops a pending hidden-pane theme flush', async () => {
+  resetTerminalThemeSchedulerForTests();
+  let appliedThemeId: string | null = null;
+  const fakeTerm = {
+    options: { theme: {} as Record<string, string> },
+  };
+
+  scheduleTerminalThemeUpdate(
+    'session-1',
+    theme('old-theme'),
+    { visible: false, focused: false },
+    () => fakeTerm as never,
+  );
+
+  cancelTerminalThemeUpdate('session-1');
+
+  await new Promise<void>((resolve) => {
+    if (typeof requestIdleCallback === 'function') {
+      requestIdleCallback(() => resolve());
+      return;
+    }
+    setTimeout(resolve, 0);
+  });
+
+  appliedThemeId = fakeTerm.options.theme.background ?? null;
+  assert.equal(appliedThemeId, null);
+});
+
+test('hidden terminal theme updates do not wait for browser idle time', async () => {
+  resetTerminalThemeSchedulerForTests();
+  const fakeTerm = {
+    options: { theme: {} as Record<string, string> },
+  };
+
+  scheduleTerminalThemeUpdate(
+    'session-2',
+    theme('new-theme'),
+    { visible: false, focused: false },
+    () => fakeTerm as never,
+  );
+
+  await Promise.resolve();
+  assert.equal(fakeTerm.options.theme.background, '#111111');
+});