Merge "Add demo code for testing" into main

samples/AconfigDemo/Android.bp

@@ -2,8 +2,8 @@ package {
     default_applicable_licenses: ["Android-Apache-2.0"],
 }
 
-android_app {
-    name: "AconfigDemoActivity",
+java_defaults {
+    name: "AconfigDemoActivityDefault",
     manifest: "AndroidManifest.xml",
     srcs: [
         "src/**/*.java"
@@ -11,7 +11,6 @@ android_app {
     platform_apis: true,
     certificate: "platform",
     static_libs: [
-        "ContentLibs",
         "dagger2",
         "jsr330",
     ],
@@ -30,6 +29,14 @@ android_app {
     plugins: ["dagger2-compiler"]
 }
 
+android_app {
+    name: "AconfigDemoActivity",
+    defaults: ["AconfigDemoActivityDefault"],
+    static_libs: [
+        "ContentLibs",
+    ]
+}
+
 aconfig_declarations {
     name: "aconfig_demo_flags",
     package: "com.example.android.aconfig.demo.flags",
@@ -49,18 +56,24 @@ filegroup {
     ],
 }
 
-java_library {
-    name: "ContentLibs",
+java_defaults {
+    name: "ContentLibsDefault",
+    sdk_version: "current",
     srcs: [
         ":ContentLibsFile",
     ],
-    sdk_version: "current",
+    libs: ["jsr330"],
+}
+
+java_library {
+    name: "ContentLibs",
+    defaults: ["ContentLibsDefault"],
     static_libs: [
         "aconfig_demo_flags_java_lib",
     ],
-    libs: ["jsr330"],
 }
 
+
 cc_aconfig_library {
     name: "aconfig_demo_flags_c_lib",
     aconfig_declarations: "aconfig_demo_flags",
@@ -103,3 +116,96 @@ rust_ffi_shared {
         "libaconfig_demo_flags_rust",
     ]
 }
+
+// Test setup
+
+// Create test verion of the jave flag library
+// It needs to use the same aconfig_declarations as
+// the production one
+java_aconfig_library {
+    name: "aconfig_demo_flags_java_lib_test",
+    aconfig_declarations: "aconfig_demo_flags",
+    // host_supported is set to true here for test running
+    // one host, in tests/unittests/Android.bp
+    host_supported: true,
+    test: true
+}
+
+
+// Option 1
+// Create a test version of the library under testing
+// The test version of this library shares the common
+// settings in a java_defaults target with the production
+// version library. The test version library statically
+// links to the test flag library, and the production
+// version library links to the production version flag
+// library.
+
+java_library {
+    name: "ContentLibsTest1",
+    defaults: ["ContentLibsDefault"],
+    static_libs: [
+        "aconfig_demo_flags_java_lib_test",
+    ],
+}
+
+// Create the test version of the android_app. This app is used
+// for self-instrumentation test. This app uses the test version
+// of the library which uses flags.
+// Please check tests/unittests/Android.bp:AconfigDemoUnitTests1
+android_app {
+    name: "AconfigDemoActivityTest1",
+    defaults: ["AconfigDemoActivityDefault"],
+    optimize: {
+        enabled: false,
+    },
+    static_libs: [
+        "ContentLibsTest1",
+    ]
+}
+
+// Option 2
+// Instead of creating two verions of the library containing flags,
+// it could work that create one version of the library and dynamically
+// link to the flag library. The flag library here just works as a stub
+// library for the purpose of building. The real flag library should be
+// statically linked in the final binary.
+
+
+// This library is created to demonstrate dynamically linking to flag
+// library
+java_library {
+    name: "ContentLibs2",
+    defaults: ["ContentLibsDefault"],
+    sdk_version: "current",
+    libs: [
+        // link the flag library for building purpose
+        "aconfig_demo_flags_java_lib",
+    ],
+}
+
+// This app is created to demonstrate the production version of the app
+// statically links to the production version of the flag library.
+android_app {
+    name: "AconfigDemoActivity2",
+    defaults: ["AconfigDemoActivityDefault"],
+    static_libs: [
+        "ContentLibs2",
+        "aconfig_demo_flags_java_lib",
+    ]
+}
+
+// This app is created to demonstrate the test version of app uses the same
+// ContentLibs2 library, but links to test version of the flag library.
+// Please check tests/unittests/Android.bp:AconfigDemoUnitTests2
+android_app {
+    name: "AconfigDemoActivityTest2",
+    defaults: ["AconfigDemoActivityDefault"],
+    optimize: {
+        enabled: false,
+    },
+    static_libs: [
+        "ContentLibs2",
+        "aconfig_demo_flags_java_lib",
+    ]
+}

samples/AconfigDemo/tests/unittests/AconfigDemoUnitTests1.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2023 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<!-- This test config file is auto-generated. -->
+<configuration description="Runs AconfigDemoUnitTests1.">
+    <target_preparer class="com.android.tradefed.targetprep.DeviceSetup">
+        <option name="run-command" value="pm uninstall com.example.android.aconfig.demo" />
+        <option name="run-command" value="pm uninstall com.example.android.aconfig.demo.tests" />
+    </target_preparer>
+
+    <target_preparer class="com.android.tradefed.targetprep.suite.SuiteApkInstaller">
+        <option name="cleanup-apks" value="true" />
+        <option name="test-file-name" value="AconfigDemoUnitTests1.apk" />
+        <option name="test-file-name" value="AconfigDemoActivityTest1.apk" />
+    </target_preparer>
+
+    <test class="com.android.tradefed.testtype.AndroidJUnitTest" >
+        <option name="package" value="com.example.android.aconfig.demo.tests" />
+        <option name="runner" value="androidx.test.runner.AndroidJUnitRunner" />
+    </test>
+</configuration>

samples/AconfigDemo/tests/unittests/AconfigDemoUnitTests2.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2023 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<!-- This test config file is auto-generated. -->
+<configuration description="Runs AconfigDemoUnitTests2.">
+    <target_preparer class="com.android.tradefed.targetprep.DeviceSetup">
+        <option name="run-command" value="pm uninstall com.example.android.aconfig.demo" />
+        <option name="run-command" value="pm uninstall com.example.android.aconfig.demo.tests" />
+    </target_preparer>
+
+    <target_preparer class="com.android.tradefed.targetprep.suite.SuiteApkInstaller">
+        <option name="cleanup-apks" value="true" />
+        <option name="test-file-name" value="AconfigDemoUnitTests2.apk" />
+        <option name="test-file-name" value="AconfigDemoActivityTest2.apk" />
+    </target_preparer>
+
+    <test class="com.android.tradefed.testtype.AndroidJUnitTest" >
+        <option name="package" value="com.example.android.aconfig.demo.tests" />
+        <option name="runner" value="androidx.test.runner.AndroidJUnitRunner" />
+    </test>
+</configuration>

samples/AconfigDemo/tests/unittests/Android.bp

@@ -1,26 +1,19 @@
-java_aconfig_library {
-    name: "aconfig_demo_flags_lib_test",
-    aconfig_declarations: "aconfig_demo_flags",
-    host_supported: true,
-    test: true
-}
-
 java_library_host {
-    name: "ContentLibs_test",
+    name: "ContentLibsHost",
     srcs: [
         ":ContentLibsFile",
     ],
     static_libs: [
-        "aconfig_demo_flags_lib_test",
+        "aconfig_demo_flags_java_lib_test",
     ],
     libs: ["jsr330"],
 }
 
 java_test_host {
-    name: "ContentLibs_test_host",
+    name: "ContentLibsTestHost",
     srcs: ["*.java"],
     static_libs: [
-        "ContentLibs_test",
+        "ContentLibsHost",
         "junit",
         "flag-junit-base",
     ],
@@ -29,3 +22,35 @@ java_test_host {
     },
     test_suites: ["general-tests"],
 }
+
+android_test {
+    name: "AconfigDemoUnitTests1",
+    srcs: ["*.java"],
+    certificate: "platform",
+    static_libs: [
+        "junit",
+        "androidx.test.runner",
+        "flag-junit-base",
+        "platform-test-annotations",
+    ],
+    manifest: "AndroidManifest.xml",
+    test_config: "AconfigDemoUnitTests1.xml",
+    data: [":AconfigDemoActivityTest1"],
+    instrumentation_for: "AconfigDemoActivityTest1",
+}
+
+android_test {
+    name: "AconfigDemoUnitTests2",
+    srcs: ["*.java"],
+    certificate: "platform",
+    static_libs: [
+        "junit",
+        "androidx.test.runner",
+        "flag-junit-base",
+        "platform-test-annotations",
+    ],
+    manifest: "AndroidManifest.xml",
+    test_config: "AconfigDemoUnitTests2.xml",
+    data: [":AconfigDemoActivityTest2"],
+    instrumentation_for: "AconfigDemoActivityTest2",
+}

samples/AconfigDemo/tests/unittests/AndroidManifest.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2008 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      package="com.example.android.aconfig.demo.tests">
+     <uses-permission android:name="android.permission.READ_DEVICE_CONFIG" />
+
+    <!-- We add an application tag here just so that we can indicate that
+         this package needs to link against the android.test library,
+         which is needed when building test cases. -->
+    <application>
+        <uses-library android:name="android.test.runner" />
+    </application>
+
+     <instrumentation android:name="androidx.test.runner.AndroidJUnitRunner"
+          android:targetPackage="com.example.android.aconfig.demo"
+          android:label="AconfigDemoActivity sample tests">
+     </instrumentation>
+</manifest>