Add test for commands button text

e2e/playwright/app-header-tests.spec.ts

@@ -6,7 +6,39 @@ test.afterEach(async ({ page }, testInfo) => {
   await tearDown(page, testInfo)
 })
 
-test.describe('Electron user sidebar menu tests', () => {
+test.describe('Electron app header tests', () => {
+  test(
+    'Open Command Palette button has correct shortcut',
+    { tag: '@electron' },
+    async ({ browserName }, testInfo) => {
+      const { electronApp, page } = await setupElectron({
+        testInfo,
+        folderSetupFn: async () => {},
+      })
+
+      await page.setViewportSize({ width: 1200, height: 500 })
+
+      // No space before the shortcut since it checks textContent.
+      let text
+      switch (process.platform) {
+        case 'darwin':
+          text = 'Commands⌘ K'
+          break
+        case 'win32':
+          text = 'CommandsCtrl + K'
+          break
+        default: // 'linux' etc.
+          text = 'CommandsCtrl K'
+          break
+      }
+      const commandsButton = page.getByRole('button', { name: 'Commands' })
+      await expect(commandsButton).toBeVisible()
+      await expect(commandsButton).toHaveText(text)
+
+      await electronApp.close()
+    }
+  )
+
   test(
     'User settings has correct shortcut',
     { tag: '@electron' },