add coverage report

Author: MartinKreizl

.github/workflows/php.yml

@@ -3,8 +3,7 @@ name: Run tests
 on: [push]
 
 jobs:
-  build:
-
+  tests:
     runs-on: ubuntu-latest
 
     strategy:
@@ -24,3 +23,23 @@ jobs:
 
       - name: Run phpstan
         run: composer run phpstan
+
+  coverage:
+    runs-on: ubuntu-latest
+
+    container: ghcr.io/bulkgate/plugin:8.3
+
+    steps:
+      - uses: actions/checkout@v1
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress --no-suggest
+
+      - name: Run test suite
+        run: composer run coverage
+
+      - name: Upload coverage
+        uses: actions/upload-artifact@v2
+        with:
+          name: coverage-report
+          path: coverage.html