[CI] Better caching and fewer jobs run

* [CI] Runs build in macos to generate a cache for androidTest runs

* Build projects before running emulator

* Fixes flaky coroutines test

* Moves spotless up in local tests job

* Enables config cache by setting problems to warn. Fixes #1022

.github/workflows/Build.yaml

@@ -11,45 +11,8 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  build:
-    runs-on: ubuntu-latest
-    timeout-minutes: 90
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Validate Gradle Wrapper
-        uses: gradle/wrapper-validation-action@v1
-
-      - name: Copy CI gradle.properties
-        run: mkdir -p ~/.gradle ; cp .github/ci-gradle.properties ~/.gradle/gradle.properties        
-
-      - name: Set up JDK 17
-        uses: actions/setup-java@v3
-        with:
-          distribution: 'zulu'
-          java-version: 17
-
-      - name: Setup Gradle
-        uses: gradle/gradle-build-action@v2
-
-      - name: Check spotless
-        run: ./gradlew spotlessCheck --init-script gradle/init.gradle.kts --no-configuration-cache
-
-      - name: Build all build type and flavor permutations
-        run: ./gradlew assemble
-
-      - name: Upload build outputs (APKs)
-        uses: actions/upload-artifact@v3
-        with:
-          name: APKs
-          path: '**/build/outputs/apk/**/*.apk'
-
-      - name: Run local tests
-        run: ./gradlew testDemoDebug testProdDebug :lint:test
-
-  test:
+  test_and_apk:
+    name: "Local tests and APKs"
     runs-on: ubuntu-latest
 
     permissions:
@@ -76,6 +39,9 @@ jobs:
       - name: Setup Gradle
         uses: gradle/gradle-build-action@v2
 
+      - name: Check spotless
+        run: ./gradlew spotlessCheck --init-script gradle/init.gradle.kts --no-configuration-cache
+
       - name: Run all local screenshot tests (Roborazzi)
         id: screenshotsverify
         continue-on-error: true
@@ -106,7 +72,16 @@ jobs:
       # Run local tests after screenshot tests to avoid wrong UP-TO-DATE. TODO: Ignore screenshots.
       - name: Run local tests
         if: always()
-        run: ./gradlew testDemoDebug testProdDebug
+        run: ./gradlew testDemoDebug testProdDebug :lint:test
+
+      - name: Build all build type and flavor permutations
+        run: ./gradlew assemble
+
+      - name: Upload build outputs (APKs)
+        uses: actions/upload-artifact@v3
+        with:
+          name: APKs
+          path: '**/build/outputs/apk/**/*.apk'
 
       - name: Upload test results (XML)
         if: always()
@@ -129,7 +104,6 @@ jobs:
         run: ./gradlew :app:checkProdReleaseBadging
 
   androidTest:
-    needs: build
     runs-on: macOS-latest # enables hardware acceleration in the virtual machine
     timeout-minutes: 55
     strategy:
@@ -152,8 +126,8 @@ jobs:
       - name: Setup Gradle
         uses: gradle/gradle-build-action@v2
 
-      - name: Build AndroidTest apps
-        run: ./gradlew packageDemoDebug packageDemoDebugAndroidTest --daemon
+      - name: Build projects before running emulator
+        run: ./gradlew packageDemoDebug packageDemoDebugAndroidTest
 
       - name: Run instrumentation tests
         uses: reactivecircus/android-emulator-runner@v2

app/src/androidTest/kotlin/com/google/samples/apps/nowinandroid/ui/NavigationTest.kt

@@ -42,7 +42,7 @@ import dagger.hilt.android.testing.BindValue
 import dagger.hilt.android.testing.HiltAndroidRule
 import dagger.hilt.android.testing.HiltAndroidTest
 import kotlinx.coroutines.flow.first
-import kotlinx.coroutines.test.runTest
+import kotlinx.coroutines.runBlocking
 import org.junit.Before
 import org.junit.Rule
 import org.junit.Test
@@ -265,12 +265,14 @@ class NavigationTest {
     }
 
     @Test
-    fun navigationBar_multipleBackStackInterests() = runTest {
+    fun navigationBar_multipleBackStackInterests() {
         composeTestRule.apply {
             onNodeWithText(interests).performClick()
 
             // Select the last topic
-            val topic = topicsRepository.getTopics().first().sortedBy(Topic::name).last().name
+            val topic = runBlocking {
+                topicsRepository.getTopics().first().sortedBy(Topic::name).last().name
+            }
             onNodeWithTag("interests:topics").performScrollToNode(hasText(topic))
             onNodeWithText(topic).performClick()
 

gradle.properties

@@ -23,6 +23,10 @@ org.gradle.caching=true
 
 # Enable configuration caching between builds.
 org.gradle.configuration-cache=true
+# This option is set because of https://github.com/google/play-services-plugins/issues/246
+# to generate the Configuration Cache regardless of incompatible tasks.
+# See https://github.com/android/nowinandroid/issues/1022 before using it.
+org.gradle.configuration-cache.problems=warn
 
 # AndroidX package structure to make it clearer which packages are bundled with the
 # Android operating system, and which are packaged with your app"s APK