Test reporting

.github/workflows/build.yml

@@ -51,6 +51,18 @@ jobs:
           CROWDIN_TOKEN: ${{ secrets.CROWDIN_TOKEN }}
         continue-on-error: true
         if: github.ref == 'refs/heads/master' && github.event_name != 'pull_request'
+
+      # Always upload test results
+      - name: Merge Test Reports
+        if: success() || failure()
+        run: npx junit-report-merger junit.xml "**/TEST-*.xml"
+
+      - uses: actions/upload-artifact@v3
+        if: success() || failure()
+        with:
+          name: test-results
+          path: junit.xml
+
       - uses: actions/upload-artifact@v3
         with:
           name: dist

.github/workflows/test-report.yml

@@ -0,0 +1,23 @@
+name: 'Test Report'
+on:
+  workflow_run:
+    workflows: ['Build Pull Request']
+    types:
+      - completed
+permissions:
+  contents: read
+  actions: read
+  checks: write
+jobs:
+  report:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: dorny/test-reporter@afe6793191b75b608954023a46831a3fe10048d4
+        with:
+          artifact: test-results
+          name: Test Report
+          path: '**/*.xml'
+          reporter: java-junit
+        # This should not affect the result of the check created
+        # for the origin PR. This just affects this post-processing job itself.
+        continue-on-error: true