Testing: update Android GitHub workflow to run tests on emulator

Author: cconlon

.github/workflows/android_gradle.yml

@@ -1,21 +1,18 @@
-name: Android Gradle Build test logic
+name: Android Gradle Build and Test
 
 on:
-  workflow_call:
-    inputs:
-      os:
-        required: true
-        type: string
-      jdk_distro:
-        required: true
-        type: string
-      jdk_version:
-        required: true
-        type: string
+  push:
+    branches: [ 'master', 'main', 'release/**' ]
+  pull_request:
+    branches: [ 'master' ]
+
+concurrency:
+  group: android-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
 
 jobs:
-  build_wolfssljni:
-    runs-on: ${{ inputs.os }}
+  build_wolfcryptjni:
+    runs-on: ubuntu-latest
     steps:
       - name: Clone wolfcrypt-jni
         uses: actions/checkout@v4
@@ -31,22 +28,80 @@ jobs:
       - name: Create blank options.h
         run: cp IDE/Android/app/src/main/cpp/wolfssl/wolfssl/options.h.in IDE/Android/app/src/main/cpp/wolfssl/wolfssl/options.h
 
-      # Setup Java
+      # Setup Java with Gradle caching
       - name: Setup java
         uses: actions/setup-java@v4
         with:
-          distribution: ${{ inputs.jdk_distro }}
-          java-version: ${{ inputs.jdk_version }}
+          distribution: 'zulu'
+          java-version: '21'
+          cache: 'gradle'
+
+      # Build all targets in single Gradle invocation
+      - name: Gradle Build
+        run: cd IDE/Android && ./gradlew --build-cache assembleDebug assembleDebugUnitTest assembleDebugAndroidTest
 
-      # Gradle assembleDebug
-      - name: Gradle assembleDebug
-        run: cd IDE/Android && ls && ./gradlew assembleDebug
+      # Enable KVM for hardware acceleration (required for emulator)
+      - name: Enable KVM
+        run: |
+          echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
+          sudo udevadm control --reload-rules
+          sudo udevadm trigger --name-match=kvm
 
-      # Gradle assembleDebugUnitTest
-      - name: Gradle assembleDebugUnitTest
-        run: cd IDE/Android && ls && ./gradlew assembleDebugUnitTest
+      # Cache AVD snapshot for faster emulator boot
+      - name: AVD cache
+        uses: actions/cache@v4
+        id: avd-cache
+        with:
+          path: |
+            ~/.android/avd/*
+            ~/.android/adb*
+          key: avd-wolfcryptjni-30-x86_64-atd-v1
 
-      # Gradle assembleDebugAndroidTest
-      - name: Gradle assembleDebugAndroidTest
-        run: cd IDE/Android && ls && ./gradlew assembleDebugAndroidTest
+      # Create AVD and generate snapshot for caching
+      - name: Create AVD and generate snapshot
+        if: steps.avd-cache.outputs.cache-hit != 'true'
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: 30
+          arch: x86_64
+          target: aosp_atd
+          force-avd-creation: false
+          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
+          disable-animations: true
+          script: echo "Generated AVD snapshot for caching"
 
+      # Run instrumented tests on Android emulator
+      - name: Run Android Instrumented Tests
+        uses: reactivecircus/android-emulator-runner@v2
+        timeout-minutes: 15
+        with:
+          api-level: 30
+          arch: x86_64
+          target: aosp_atd
+          force-avd-creation: false
+          emulator-options: -no-snapshot-save -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
+          disable-animations: true
+          script: |
+            adb wait-for-device
+            adb shell mkdir -p /data/local/tmp/examples/certs/intermediate
+            adb shell mkdir -p /data/local/tmp/examples/certs/rsapss
+            adb shell mkdir -p /data/local/tmp/examples/certs/crl
+            adb push ./examples/certs/ /data/local/tmp/examples/
+            adb logcat -c
+            cd IDE/Android && ./gradlew connectedDebugAndroidTest --no-daemon --no-watch-fs || { adb logcat -d > /tmp/logcat.txt 2>&1; echo "=== LOGCAT (errors) ==="; grep -i "exception\|error\|fatal" /tmp/logcat.txt || true; exit 1; }
+            adb logcat -d > /tmp/logcat.txt 2>&1 || true
+            pgrep -f '[q]emu-system' | xargs -r kill -9 2>/dev/null || true
+            pgrep -f '[c]rashpad' | xargs -r kill -9 2>/dev/null || true
+            sleep 2
+
+      # Upload test reports even on failure
+      - name: Upload Test Reports
+        uses: actions/upload-artifact@v4
+        if: always()
+        timeout-minutes: 5
+        with:
+          name: android-test-reports
+          path: |
+            IDE/Android/app/build/reports/androidTests/
+            /tmp/logcat.txt
+          retention-days: 14

.github/workflows/main.yml

@@ -139,21 +139,6 @@ jobs:
       jdk_version: ${{ matrix.jdk_version }}
       wolfssl_configure: ${{ matrix.wolfssl_configure }}
 
-  # ----------------------- Android Gradle build ------------------------
-  # Run Android gradle build over PR code, only running on Linux with one
-  # JDK/version for now.
-  android-gradle:
-    strategy:
-      matrix:
-        os: [ 'ubuntu-latest' ]
-        jdk_version: [ '21' ]
-    name: Android Gradle (${{ matrix.os }} Zulu JDK ${{ matrix.jdk_version }})
-    uses: ./.github/workflows/android_gradle.yml
-    with:
-      os: ${{ matrix.os }}
-      jdk_distro: "zulu"
-      jdk_version: ${{ matrix.jdk_version }}
-
   # --------------------- Maven build - test pom.xml --------------------
   # Run Maven build over PR code, running on Linux and Mac with only one
   # JDK/version for now.