[ApiModel] Add test for inlining into same class and out
This test shows the regression from allowing inlining into the same
class without updating the api level.
Bug: 197613376
Change-Id: I28951b32da96acb0f898c2b823126841d2306628
diff --git a/src/test/java/com/android/tools/r8/apimodel/ApiModelInlineInSameClassTest.java b/src/test/java/com/android/tools/r8/apimodel/ApiModelInlineInSameClassTest.java
new file mode 100644
index 0000000..85e23f5
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/apimodel/ApiModelInlineInSameClassTest.java
@@ -0,0 +1,97 @@
+// 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.codeinspector.Matchers.isPresent;
+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.AndroidApiLevel;
+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 ApiModelInlineInSameClassTest extends TestBase {
+
+ private final TestParameters parameters;
+
+ @Parameters(name = "{0}")
+ public static TestParametersCollection data() {
+ return getTestParameters().withAllRuntimesAndApiLevels().build();
+ }
+
+ public ApiModelInlineInSameClassTest(TestParameters parameters) {
+ this.parameters = parameters;
+ }
+
+ @Test
+ public void testR8() throws Exception {
+ Method apiMethod = Api.class.getDeclaredMethod("apiLevel22");
+ testForR8(parameters.getBackend())
+ .addProgramClasses(ApiCaller.class, ApiCallerCaller.class, Main.class)
+ .addLibraryClasses(Api.class)
+ .addDefaultRuntimeLibrary(parameters)
+ .setMinApi(parameters.getApiLevel())
+ .addKeepMainRule(Main.class)
+ .apply(setMockApiLevelForMethod(apiMethod, AndroidApiLevel.L_MR1))
+ .apply(ApiModelingTestHelper::enableApiCallerIdentification)
+ .compile()
+ .inspect(
+ inspector -> {
+ // TODO(b/197613376): The call should not be inlined into Main.main if minApi > L_MR1.
+ ClassSubject mainSubject = inspector.clazz(Main.class);
+ MethodSubject mainMethodSubject = mainSubject.uniqueMethodWithName("main");
+ assertThat(mainMethodSubject, isPresent());
+ assertThat(mainMethodSubject, CodeMatchers.invokesMethodWithName("apiLevel22"));
+ })
+ .addRunClasspathClasses(Api.class)
+ .run(parameters.getRuntime(), Main.class)
+ .assertSuccessWithOutputLines("Api::apiLevel22");
+ }
+
+ public static class Api {
+
+ public static void apiLevel22() {
+ System.out.println("Api::apiLevel22");
+ }
+ }
+
+ public static class ApiCaller {
+
+ public static void callingApi() {
+ Api.apiLevel22();
+ }
+
+ public static void notCallingApi() {
+ // If api level information is not propagated correctly, inlining `callingApi` into
+ // `notCallingApi` will have an api call that is not modeled correctly and it could be inlined
+ // into its callers incorrectly.
+ callingApi();
+ }
+ }
+
+ public static class ApiCallerCaller {
+
+ public static void foo() {
+ ApiCaller.notCallingApi();
+ }
+ }
+
+ public static class Main {
+
+ public static void main(String[] args) {
+ ApiCallerCaller.foo();
+ }
+ }
+}
