✨ feat(metamask): Add getExtensionId helper function

wallets/metamask/package.json

@@ -29,7 +29,8 @@
     "types:check": "tsc --noEmit"
   },
   "dependencies": {
-    "core": "workspace:*"
+    "core": "workspace:*",
+    "zod": "^3.22.4"
   },
   "devDependencies": {
     "@playwright/test": "^1.38.1",

wallets/metamask/src/utils/getExtensionId.ts

@@ -0,0 +1,32 @@
+import type { BrowserContext } from '@playwright/test'
+import { z } from 'zod'
+
+const Extension = z.object({
+  id: z.string(),
+  name: z.string()
+})
+
+const Extensions = z.array(Extension)
+
+export async function getExtensionId(context: BrowserContext, extensionName: string) {
+  const page = await context.newPage()
+  await page.goto('chrome://extensions')
+
+  const unparsedExtensions = await page.evaluate('chrome.management.getAll()')
+
+  const allExtensions = Extensions.parse(unparsedExtensions)
+  const extension = allExtensions.find((extension) => extension.name.toLowerCase() === extensionName.toLowerCase())
+
+  if (!extension) {
+    throw new Error(
+      [
+        `[GetExtensionId] Extension with name ${extensionName} not found.`,
+        `Available extensions: ${allExtensions.map((extension) => extension.name).join(', ')}`
+      ].join('\n')
+    )
+  }
+
+  await page.close()
+
+  return extension.id
+}

wallets/metamask/test/e2e/metamask.spec.ts

@@ -1,13 +1,22 @@
-import { type Page, chromium, test as base } from '@playwright/test'
+import { type BrowserContext, type Page, chromium, test as base } from '@playwright/test'
 import { OnboardingPage } from '../../src/pages'
 import { prepareExtension } from '../../src/prepareExtension'
+import { getExtensionId } from '../../src/utils/getExtensionId'
 
 const DEFAULT_SEED_PHRASE = 'test test test test test test test test test test test junk'
 const DEFAULT_PASSWORD = 'Tester@1234'
 
+let sharedContext: BrowserContext | undefined
+
 // Fixture for the test.
 const test = base.extend({
   context: async ({ context: _ }, use) => {
+    if (sharedContext) {
+      await use(sharedContext)
+
+      return
+    }
+
     const metamaskPath = await prepareExtension()
 
     // biome-ignore format: the array should not be formatted
@@ -31,6 +40,7 @@ const test = base.extend({
       throw new Error('[FIXTURE] MetaMask extension did not load in time')
     }
 
+    sharedContext = context
     await use(context)
   },
   page: async ({ context }, use) => {
@@ -53,4 +63,11 @@ describe('MetaMask', () => {
       await expect(page.getByText('0xf39...2266')).toBeVisible()
     })
   })
+
+  describe('getExtensionId', () => {
+    test('should return the extension id', async ({ context }) => {
+      const extensionId = await getExtensionId(context, 'MetaMask')
+      expect(extensionId).toMatch(/^[a-z]{32}$/)
+    })
+  })
 })