Split tests for caching

- Separate testing of Gradle Home caching from configuration-cache caching
- Add test for configuration-cache when Gradle Home is not fully restored

.github/workflows/integTest-caching-configuration-cache.yml

@@ -0,0 +1,65 @@
+name: Test save/restore configuration-cache state
+
+on:
+  pull_request:
+  push:
+  workflow_dispatch:
+
+env:
+  GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX: ${{github.workflow}}#${{github.run_number}}-
+  GRADLE_BUILD_ACTION_CACHE_DEBUG_ENABLED: true
+
+jobs:
+  # Run initial Gradle builds to push initial cache entries
+  # These builds should start fresh without cache hits, due to the seed injected into the cache key above.
+  seed-build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Build with configuration-cache enabled
+      uses: ./
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test --configuration-cache
+
+  # Test that the project-dot-gradle cache will cache and restore configuration-cache
+  configuration-cache:
+    needs: seed-build
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Execute Gradle build and verify cached configuration
+      uses: ./
+      env: 
+        VERIFY_CACHED_CONFIGURATION: true
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test --configuration-cache
+        cache-read-only: true
+
+  # Check that the build can run when no bundles are restored
+  no-bundles-restored:
+    needs: seed-build
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Execute Gradle build with no cache artifact bundles restored
+      uses: ./
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test --configuration-cache
+        cache-read-only: true
+        gradle-home-cache-artifact-bundles: '[]'
+

.github/workflows/integTest-caching-gradle-home.yml

@@ -1,4 +1,4 @@
-name: Test caching
+name: Test save/restore Gradle Home directory
 
 on:
   pull_request:
@@ -24,11 +24,6 @@ jobs:
       with:
         build-root-directory: __tests__/samples/groovy-dsl
         arguments: test
-    - name: Build with configuration-cache enabled
-      uses: ./
-      with:
-        build-root-directory: __tests__/samples/groovy-dsl
-        arguments: test --configuration-cache
 
   # Test that the gradle-user-home cache will cache dependencies, by running build with --offline
   dependencies-cache:
@@ -64,25 +59,6 @@ jobs:
         arguments: test -DverifyCachedBuild=true
         cache-read-only: true
 
-  # Test that the project-dot-gradle cache will cache and restore configuration-cache
-  configuration-cache:
-    needs: seed-build
-    strategy:
-      matrix:
-        os: [ubuntu-latest, windows-latest]
-    runs-on: ${{ matrix.os }}
-    steps:
-    - name: Checkout sources
-      uses: actions/checkout@v2
-    - name: Execute Gradle build and verify cached configuration
-      uses: ./
-      env: 
-        VERIFY_CACHED_CONFIGURATION: true
-      with:
-        build-root-directory: __tests__/samples/groovy-dsl
-        arguments: test --configuration-cache
-        cache-read-only: true
-
   # Check that the build can run when no bundles are restored
   no-bundles-restored:
     needs: seed-build