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/cli.spec.ts

@@ -0,0 +1,33 @@
+// 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 } from '../helpers/index.js'
+
+// The driver launches the app without arguments, so the matches reflect the
+// CLI definition in the example's `tauri.conf.json` with nothing set. The
+// example only registers the plugin on desktop, so the suite is skipped on
+// mobile (which has no command line to begin with).
+
+describePlugin('cli', { desktopOnly: true }, () => {
+  it('getMatches reports every defined argument as unset', async () => {
+    const matches = await tauri((api) => api.cli.getMatches())
+    expect(Object.keys(matches.args).sort()).toEqual([
+      'config',
+      'theme',
+      'verbose'
+    ])
+    // flags resolve to `false`, arguments taking a value to `null`
+    expect(matches.args.verbose).toEqual({ value: false, occurrences: 0 })
+    expect(matches.args.config).toEqual({ value: null, occurrences: 0 })
+    expect(matches.args.theme).toEqual({ value: null, occurrences: 0 })
+  })
+
+  it('getMatches reports no subcommand', async () => {
+    const subcommand = await tauri(
+      async (api) => (await api.cli.getMatches()).subcommand
+    )
+    expect(subcommand).toBeNull()
+  })
+})