Test -assumevalues and -assumenosideeffects for library methods
Bug: 112871222
Change-Id: I74bbf98cf39200fa4ea0381a96e902ff12613e9b
diff --git a/src/test/java/com/android/tools/r8/shaking/assumenosideeffects/AssumeNoSideEffectsForLibraryMethodTest.java b/src/test/java/com/android/tools/r8/shaking/assumenosideeffects/AssumeNoSideEffectsForLibraryMethodTest.java
new file mode 100644
index 0000000..632863a
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/shaking/assumenosideeffects/AssumeNoSideEffectsForLibraryMethodTest.java
@@ -0,0 +1,64 @@
+// Copyright (c) 2020, 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.shaking.assumenosideeffects;
+
+import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.Assert.assertTrue;
+
+import com.android.tools.r8.TestBase;
+import com.android.tools.r8.TestParameters;
+import com.android.tools.r8.TestParametersCollection;
+import com.android.tools.r8.utils.codeinspector.MethodSubject;
+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 AssumeNoSideEffectsForLibraryMethodTest extends TestBase {
+
+ private final TestParameters parameters;
+
+ @Parameters(name = "{0}")
+ public static TestParametersCollection data() {
+ return getTestParameters().withAllRuntimesAndApiLevels().build();
+ }
+
+ public AssumeNoSideEffectsForLibraryMethodTest(TestParameters parameters) {
+ this.parameters = parameters;
+ }
+
+ @Test
+ public void test() throws Exception {
+ testForR8(parameters.getBackend())
+ .addProgramClasses(TestClass.class)
+ .addKeepMainRule(TestClass.class)
+ .addKeepRules("-assumenosideeffects class java.lang.Object { int hashCode() return 42; }")
+ .setMinApi(parameters.getApiLevel())
+ .compile()
+ .inspect(
+ inspector -> {
+ MethodSubject mainMethodSubject = inspector.clazz(TestClass.class).mainMethod();
+ assertThat(mainMethodSubject, isPresent());
+ assertTrue(
+ mainMethodSubject
+ .streamInstructions()
+ .noneMatch(
+ instruction ->
+ instruction.isInvokeVirtual()
+ && instruction.getMethod().name.toString().equals("hashCode")));
+ })
+ .run(parameters.getRuntime(), TestClass.class)
+ .assertSuccessWithOutputLines("42");
+ }
+
+ static class TestClass {
+
+ public static void main(String[] args) {
+ System.out.println(new Object().hashCode());
+ }
+ }
+}
diff --git a/src/test/java/com/android/tools/r8/shaking/assumevalues/AssumeValuesForLibraryMethodTest.java b/src/test/java/com/android/tools/r8/shaking/assumevalues/AssumeValuesForLibraryMethodTest.java
new file mode 100644
index 0000000..4d7e293
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/shaking/assumevalues/AssumeValuesForLibraryMethodTest.java
@@ -0,0 +1,64 @@
+// Copyright (c) 2020, 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.shaking.assumevalues;
+
+import static com.android.tools.r8.utils.codeinspector.Matchers.isPresent;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.Assert.assertTrue;
+
+import com.android.tools.r8.TestBase;
+import com.android.tools.r8.TestParameters;
+import com.android.tools.r8.TestParametersCollection;
+import com.android.tools.r8.utils.codeinspector.MethodSubject;
+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 AssumeValuesForLibraryMethodTest extends TestBase {
+
+ private final TestParameters parameters;
+
+ @Parameters(name = "{0}")
+ public static TestParametersCollection data() {
+ return getTestParameters().withAllRuntimesAndApiLevels().build();
+ }
+
+ public AssumeValuesForLibraryMethodTest(TestParameters parameters) {
+ this.parameters = parameters;
+ }
+
+ @Test
+ public void test() throws Exception {
+ testForR8(parameters.getBackend())
+ .addProgramClasses(TestClass.class)
+ .addKeepMainRule(TestClass.class)
+ .addKeepRules("-assumevalues class java.lang.Object { int hashCode() return 42; }")
+ .setMinApi(parameters.getApiLevel())
+ .compile()
+ .inspect(
+ inspector -> {
+ MethodSubject mainMethodSubject = inspector.clazz(TestClass.class).mainMethod();
+ assertThat(mainMethodSubject, isPresent());
+ assertTrue(
+ mainMethodSubject
+ .streamInstructions()
+ .anyMatch(
+ instruction ->
+ instruction.isInvokeVirtual()
+ && instruction.getMethod().name.toString().equals("hashCode")));
+ })
+ .run(parameters.getRuntime(), TestClass.class)
+ .assertSuccessWithOutputLines("42");
+ }
+
+ static class TestClass {
+
+ public static void main(String[] args) {
+ System.out.println(new Object().hashCode());
+ }
+ }
+}
