Add api modeling tests for lambda methods
These work as expected due to javac generating lambda methods.
Bug: 188388130
Change-Id: I17a2dc5c17358f4ff03d1bf9f05cdd20d7cbf152
diff --git a/src/test/java/com/android/tools/r8/apimodel/ApiModelNoInliningOfLambdaTest.java b/src/test/java/com/android/tools/r8/apimodel/ApiModelNoInliningOfLambdaTest.java
new file mode 100644
index 0000000..c8f7caa
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/apimodel/ApiModelNoInliningOfLambdaTest.java
@@ -0,0 +1,140 @@
+// Copyright (c) 2021, the R8 project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+package com.android.tools.r8.apimodel;
+
+import static com.android.tools.r8.apimodel.ApiModelingTestHelper.setMockApiLevelForMethod;
+import static com.android.tools.r8.utils.AndroidApiLevel.L_MR1;
+import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent;
+import static org.hamcrest.CoreMatchers.not;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+import com.android.tools.r8.TestBase;
+import com.android.tools.r8.TestParameters;
+import com.android.tools.r8.TestParametersCollection;
+import com.android.tools.r8.utils.StringUtils;
+import com.android.tools.r8.utils.codeinspector.ClassSubject;
+import com.android.tools.r8.utils.codeinspector.CodeMatchers;
+import com.android.tools.r8.utils.codeinspector.MethodSubject;
+import java.lang.reflect.Method;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameters;
+
+@RunWith(Parameterized.class)
+public class ApiModelNoInliningOfLambdaTest extends TestBase {
+
+ private final TestParameters parameters;
+ private final String EXPECTED =
+ StringUtils.lines(
+ "ApiCaller::getAction",
+ "Api::apiLevel22",
+ "ApiCaller::callApi",
+ "Api::apiLevel22",
+ "Action::getAction",
+ "Api::apiLevel22");
+
+ @Parameters(name = "{0}")
+ public static TestParametersCollection data() {
+ return getTestParameters().withAllRuntimesAndApiLevels().build();
+ }
+
+ public ApiModelNoInliningOfLambdaTest(TestParameters parameters) {
+ this.parameters = parameters;
+ }
+
+ @Test
+ public void testR8() throws Exception {
+ Method apiMethod = Api.class.getDeclaredMethod("apiLevel22");
+ testForR8(parameters.getBackend())
+ .addProgramClasses(ApiCaller.class, Action.class, Main.class)
+ .addLibraryClasses(Api.class)
+ .addDefaultRuntimeLibrary(parameters)
+ .setMinApi(parameters.getApiLevel())
+ .addKeepMainRule(Main.class)
+ .apply(setMockApiLevelForMethod(apiMethod, L_MR1))
+ .apply(ApiModelingTestHelper::enableApiCallerIdentification)
+ .allowAccessModification()
+ .noMinification()
+ .compile()
+ .inspect(
+ inspector -> {
+ ClassSubject action;
+ if (parameters.canUseDefaultAndStaticInterfaceMethods()) {
+ action = inspector.clazz(Action.class);
+ } else {
+ action = inspector.companionClassFor(Action.class);
+ }
+ assertThat(action, isPresent());
+ MethodSubject action$lambda$getAction$0 =
+ action.uniqueMethodWithName("lambda$getAction$0");
+ assertThat(action$lambda$getAction$0, isPresent());
+ assertThat(
+ action$lambda$getAction$0, CodeMatchers.invokesMethodWithName("apiLevel22"));
+ ClassSubject apiCaller = inspector.clazz(ApiCaller.class);
+ if (parameters.isDexRuntime()
+ && parameters.getApiLevel().isGreaterThanOrEqualTo(L_MR1)) {
+ assertThat(apiCaller, not(isPresent()));
+ } else {
+ assertThat(apiCaller, isPresent());
+ MethodSubject apiCaller$lambdagetAction$0 =
+ apiCaller.uniqueMethodWithName("lambda$getAction$0");
+ assertThat(apiCaller$lambdagetAction$0, isPresent());
+ assertThat(
+ apiCaller$lambdagetAction$0, CodeMatchers.invokesMethodWithName("apiLevel22"));
+ }
+ })
+ .addRunClasspathClasses(Api.class)
+ .run(parameters.getRuntime(), Main.class)
+ .assertSuccessWithOutput(EXPECTED);
+ }
+
+ public static class Api {
+
+ public static void apiLevel22() {
+ System.out.println("Api::apiLevel22");
+ }
+ }
+
+ public interface Action {
+
+ void doSomething();
+
+ static Action getAction() {
+ return () -> {
+ System.out.println("Action::getAction");
+ Api.apiLevel22();
+ };
+ }
+ }
+
+ public static class ApiCaller {
+
+ public static Action getAction() {
+ return () -> {
+ System.out.println("ApiCaller::getAction");
+ Api.apiLevel22();
+ };
+ }
+
+ public static Action getActionMethodReference() {
+ return ApiCaller::callApi;
+ }
+
+ public static void callApi() {
+ System.out.println("ApiCaller::callApi");
+ Api.apiLevel22();
+ }
+ }
+
+ public static class Main {
+
+ public static void main(String[] args) {
+ ApiCaller.getAction().doSomething();
+ ApiCaller.getActionMethodReference().doSomething();
+ Action.getAction().doSomething();
+ }
+ }
+}
