BasicNativeAndroidTest: Move gtest to a single flavor

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/main/cpp/CMakeLists.txt

@@ -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()