test(tekton): add playwright tests for the plugin (#1228)

.github/workflows/pr-playwright.yaml

@@ -20,7 +20,7 @@ jobs:
       - name: Determine changes
         id: scan
         env:
-          HEAD: ${{ github.event.pull_request.head.sha }}
+          HEAD: ${{ github.sha }}
           BASE: ${{ github.event.pull_request.base.sha }}
         run: |
           root=$(pwd)

plugins/quay/package.json

@@ -48,7 +48,7 @@
     "@backstage/dev-utils": "1.0.27",
     "@backstage/test-utils": "1.5.0",
     "@janus-idp/cli": "1.7.1",
-    "@playwright/test": "1.41.0",
+    "@playwright/test": "1.41.2",
     "@testing-library/jest-dom": "6.4.2",
     "@testing-library/react": "14.2.1",
     "@testing-library/react-hooks": "8.0.1",

plugins/quay/playwright.config.ts

@@ -17,6 +17,7 @@ export default defineConfig({
   reporter: 'html',
   /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
   use: {
+    baseURL: process.env.PLUGIN_BASE_URL || 'http://localhost:3000',
     /* Collect trace when retrying the failed test. See https://playwright.dev/docs/trace-viewer */
     trace: 'on-first-retry',
     screenshot: 'only-on-failure',

plugins/quay/tests/quay.spec.ts

@@ -6,7 +6,7 @@ test.describe('Quay plugin', () => {
   test.beforeAll(async ({ browser }) => {
     const context = await browser.newContext();
     page = await context.newPage();
-    await page.goto('http://localhost:3000/quay');
+    await page.goto('/');
     await expect(
       page.getByRole('link', { name: 'backstage-test/test-images' }),
     ).toBeEnabled({ timeout: 20000 });

plugins/tekton/package.json

@@ -22,7 +22,8 @@
     "prepack": "backstage-cli package prepack",
     "start": "backstage-cli package start",
     "test": "backstage-cli package test --passWithNoTests --coverage",
-    "tsc": "tsc"
+    "tsc": "tsc",
+    "ui-test": "yarn playwright test"
   },
   "dependencies": {
     "@aonic-ui/pipelines": "^1.1.0",
@@ -62,6 +63,7 @@
     "@janus-idp/cli": "1.7.1",
     "@testing-library/jest-dom": "6.4.2",
     "@testing-library/react": "14.2.1",
+    "@playwright/test": "1.41.2",
     "@testing-library/react-hooks": "8.0.1",
     "@testing-library/user-event": "14.5.1",
     "@types/node": "18.18.5",

plugins/tekton/playwright.config.ts

@@ -0,0 +1,34 @@
+import { defineConfig, devices } from '@playwright/test';
+
+/**
+ * See https://playwright.dev/docs/test-configuration.
+ */
+export default defineConfig({
+  testDir: './tests',
+  /* Run tests in files in parallel */
+  fullyParallel: true,
+  /* Fail the build on CI if you accidentally left test.only in the source code. */
+  forbidOnly: !!process.env.CI,
+  /* Retry on CI only */
+  retries: process.env.CI ? 2 : 0,
+  /* Run tests in sequence. */
+  workers: 1,
+  /* Reporter to use. See https://playwright.dev/docs/test-reporters */
+  reporter: 'html',
+  /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
+  use: {
+    baseURL: process.env.PLUGIN_BASE_URL || 'http://localhost:3000',
+    /* Collect trace when retrying the failed test. See https://playwright.dev/docs/trace-viewer */
+    trace: 'on-first-retry',
+    screenshot: 'only-on-failure',
+    video: 'retain-on-failure',
+  },
+
+  /* Configure projects for major browsers */
+  projects: [
+    {
+      name: 'chromium',
+      use: { ...devices['Desktop Chrome'] },
+    },
+  ],
+});