BasicNativeAndroidTest: Move gtest to a single flavor

The junit-gtest library will bring native test library and its c++
shared library into the final package. It's not easy to keep these
necessary shared libraries into androidTest flavor only. So this CL adds
a new flavor called nativeTest to include native test related libraries
and run it with androidTest. For normal usage, we can use core flavor,
the new default falvor without any native test related libraries.

Signed-off-by: utzcoz <[email protected]>

Author: utzcoz

test_all.sh

@@ -9,7 +9,16 @@ for p in $(cat projects.conf); do
    echo "====================================================================="
 
    pushd $p > /dev/null  # Silent pushd
-   ./gradlew $@ testDebug nexusOneApi30DebugAndroidTest --info | sed "s@^@$p @"  # Prefix every line with directory
+
+   ./gradlew $@ testDebug | sed "s@^@$p @"  # Prefix every line with directory
+
+   if [ "$p" == "unit/BasicNativeAndroidTest" ]; then
+       ./gradlew $@ nexusOneApi30CoreDebugAndroidTest --info | sed "s@^@$p @"  # Prefix every line with directory
+       ./gradlew $@ nexusOneApi30NativeTestDebugAndroidTest --info | sed "s@^@$p @"
+   else
+       ./gradlew $@ nexusOneApi30DebugAndroidTest --info | sed "s@^@$p @"  # Prefix every line with directory
+   fi
+
    code=${PIPESTATUS[0]}
    if [ "$code" -ne "0" ]; then
        exit $code

unit/BasicNativeAndroidTest/app/build.gradle

@@ -17,10 +17,28 @@ android {
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         externalNativeBuild {
             cmake {
-                arguments "-DANDROID_STL=c++_shared"
+                arguments "-DANDROID_STL=c++_shared", "-DENABLE_NATIVE_TEST=OFF"
             }
         }
     }
+
+    flavorDimensions = ["default"]
+
+    productFlavors {
+        core {
+            dimension "default"
+            applicationId = defaultConfig.applicationId
+        }
+        nativeTest {
+            dimension "default"
+            externalNativeBuild {
+                cmake {
+                    arguments "-DENABLE_NATIVE_TEST=ON"
+                }
+            }
+        }
+    }
+
     externalNativeBuild {
         cmake {
             path "src/main/cpp/CMakeLists.txt"
@@ -47,7 +65,8 @@ android {
     testOptions {
         managedDevices {
             devices {
-                // run with ../gradlew  nexusOneApi30DebugAndroidTest
+                // run with ../gradlew  nexusOneApi30CoreDebugAndroidTest without native tests
+                // or ../gradlew nexusOneApi30NativeTestDebugAndroidTest with native tests
                 nexusOneApi30(com.android.build.api.dsl.ManagedVirtualDevice) {
                     // A lower resolution device is used here for better emulator performance
                     device = "Nexus One"
@@ -62,9 +81,10 @@ android {
 }
 
 dependencies {
-    androidTestImplementation "junit:junit:$rootProject.junitVersion"
-    implementation "androidx.test.ext:junit-gtest:$rootProject.junitGtestVersion"
-    implementation "com.android.ndk.thirdparty:googletest:$rootProject.googletestVersion"
+    nativeTestImplementation "androidx.test.ext:junit-gtest:$rootProject.junitGtestVersion"
+    nativeTestImplementation "com.android.ndk.thirdparty:googletest:$rootProject.googletestVersion"
     androidTestImplementation "androidx.test:runner:$rootProject.runnerVersion"
     androidTestImplementation "androidx.test.ext:junit-ktx:$extJUnitVersion"
+    androidTestImplementation "com.google.truth:truth:" + rootProject.truthVersion
+    androidTestImplementation "junit:junit:$rootProject.junitVersion"
 }

unit/BasicNativeAndroidTest/app/src/androidTest/java/com/example/android/testing/nativesample/DefaultInstrumentationTest.kt

@@ -0,0 +1,16 @@
+package com.example.android.testing.nativesample
+
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.platform.app.InstrumentationRegistry
+import com.google.common.truth.Truth.assertThat
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class DefaultInstrumentationTest {
+    @Test
+    fun useAppContext() {
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertThat(appContext.packageName).isEqualTo("com.example.android.testing.nativesample")
+    }
+}

unit/BasicNativeAndroidTest/app/src/androidTest/java/com/example/android/testing/nativesample/AdderTest.kt unit/BasicNativeAndroidTest/app/src/androidTestNativeTest/java/com/example/android/testing/nativesample/AdderTest.kt

@@ -2,18 +2,20 @@ cmake_minimum_required(VERSION 3.10.2)
 
 project(junit-gtest-example LANGUAGES CXX)
 
-find_package(googletest REQUIRED CONFIG)
-find_package(junit-gtest REQUIRED CONFIG)
-
 include_directories(include)
 
 add_library(adder SHARED src/adder.cpp)
 
-add_library(adder-test SHARED test/adder_test.cpp)
+if (ENABLE_NATIVE_TEST)
+    find_package(googletest REQUIRED CONFIG)
+    find_package(junit-gtest REQUIRED CONFIG)
+
+    add_library(adder-test SHARED test/adder_test.cpp)
 
-target_link_libraries(adder-test
+    target_link_libraries(adder-test
         PRIVATE
         adder
         googletest::gtest
         junit-gtest::junit-gtest
-)
+    )
+endif()