devops: upload test-runner test results to flakiness dashboard (#12412)

Fixes #12152

.github/workflows/test_test_runner.yml

@@ -44,3 +44,5 @@ jobs:
       if: matrix.os != 'ubuntu-latest'
     - run: xvfb-run npm run ttest
       if: matrix.os == 'ubuntu-latest'
+    - run: ./utils/upload_flakiness_dashboard.sh ./test-results/report.json
+      if: always()

tests/playwright-test/playwright-test.config.ts

@@ -15,7 +15,9 @@
  */
 
 import { Config } from './stable-test-runner';
+import * as path from 'path';
 
+const outputDir = path.join(__dirname, '..', '..', 'test-results');
 const config: Config = {
   testDir: __dirname,
   testIgnore: ['assets/**', 'stable-test-runner/**'],
@@ -28,6 +30,12 @@ const config: Config = {
   ] : [
     { name: 'playwright-test', testIgnore: ['*.visual.ts'] },
   ],
+  reporter: process.env.CI ? [
+    ['dot'],
+    ['json', { outputFile: path.join(outputDir, 'report.json') }],
+  ] : [
+    ['list']
+  ],
 };
 
 export default config;