feat(tests): add api e2e tests (#3617)

* feat(tests): add api e2e tests

* lockfile

* mobile

* try linux fix [skip ci]

* ios fix

* fix test on windows

* improve cache

* fix pnpm audit [skip ci]

packages/api-e2e/test/specs/notification.spec.ts

@@ -0,0 +1,58 @@
+// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
+
+import { expect } from '@wdio/globals'
+import { tauri, describePlugin, itDesktop } from '../helpers/index.js'
+
+// Whether a notification actually shows up depends on the desktop session
+// (a notification daemon on Linux, the app's registration on Windows and
+// macOS), which the suite cannot observe. The specs cover the permission
+// model and that sending does not error out synchronously.
+//
+// The permission specs are desktop-only: mobile starts out ungranted and
+// `requestPermission` puts up a system dialog the session would then block on.
+
+describePlugin('notification', () => {
+  itDesktop('permission is granted on desktop', async () => {
+    const result = await tauri(async (api) => ({
+      granted: await api.notification.isPermissionGranted(),
+      requested: await api.notification.requestPermission()
+    }))
+    expect(result).toEqual({ granted: true, requested: 'granted' })
+  })
+
+  itDesktop('the plugin overrides window.Notification', async () => {
+    const result = await tauri(async () => ({
+      permission: window.Notification.permission,
+      requested: await window.Notification.requestPermission()
+    }))
+    expect(result).toEqual({ permission: 'granted', requested: 'granted' })
+  })
+
+  it('sendNotification accepts a title string and an options object', async () => {
+    const result = await tauri((api) => {
+      api.notification.sendNotification('notification from e2e')
+      api.notification.sendNotification({
+        title: 'notification from e2e',
+        body: 'with a body',
+        sound: 'default'
+      })
+      return true
+    })
+    expect(result).toBe(true)
+  })
+
+  it('new Notification() goes through the plugin', async () => {
+    const result = await tauri(() => {
+      const notification = new window.Notification(
+        'window.Notification from e2e',
+        {
+          body: 'created through the DOM API'
+        }
+      )
+      return typeof notification === 'object'
+    })
+    expect(result).toBe(true)
+  })
+})