Add an R8/ProGuard test using methods removed from the library
Bug: b/37324358
Change-Id: Idc4fdc9a356f972cff85bb6902aec76e54d3db82
diff --git a/src/test/java/com/android/tools/r8/proguard/RemovedAndroidApiTest.java b/src/test/java/com/android/tools/r8/proguard/RemovedAndroidApiTest.java
new file mode 100644
index 0000000..7e4a3b2
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/proguard/RemovedAndroidApiTest.java
@@ -0,0 +1,98 @@
+// Copyright (c) 2023, 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.proguard;
+
+import static org.hamcrest.CoreMatchers.containsString;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+import com.android.tools.r8.CompilationFailedException;
+import com.android.tools.r8.ProguardVersion;
+import com.android.tools.r8.TestBase;
+import com.android.tools.r8.TestParameters;
+import com.android.tools.r8.TestParametersCollection;
+import com.android.tools.r8.ToolHelper;
+import com.android.tools.r8.utils.AndroidApiLevel;
+import java.io.IOException;
+import org.hamcrest.CoreMatchers;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.junit.runners.Parameterized.Parameter;
+import org.junit.runners.Parameterized.Parameters;
+
+// See b/37324358 for reference.
+@RunWith(Parameterized.class)
+public class RemovedAndroidApiTest extends TestBase {
+
+ @Parameter() public TestParameters parameters;
+
+ @Parameters(name = "{0}")
+ public static TestParametersCollection data() {
+ return getTestParameters().withDefaultDexRuntime().withApiLevel(AndroidApiLevel.B).build();
+ }
+
+ @Test
+ public void testR8() throws Exception {
+ parameters.assumeR8TestParameters();
+ testForR8(parameters.getBackend())
+ .addLibraryFiles(ToolHelper.getAndroidJar(AndroidApiLevel.LATEST))
+ .addProgramClassFileData(getClassUsingRemovedApi())
+ .addKeepMainRule(TestClass.class)
+ .setMinApi(parameters)
+ .run(parameters.getRuntime(), TestClass.class)
+ .assertFailureWithErrorThatMatches(
+ CoreMatchers.anyOf(
+ containsString("java.lang.ClassNotFoundException: android.util.FloatMath"),
+ containsString(
+ "java.lang.ClassNotFoundException: Didn't find class"
+ + " \"android.util.FloatMath\"")));
+ }
+
+ @Test
+ public void testProguard() throws Exception {
+ parameters.assumeR8TestParameters();
+ try {
+ testForProguard(ProguardVersion.V7_0_0)
+ .addProgramClassFileData(getClassUsingRemovedApi())
+ .addLibraryFiles(ToolHelper.getAndroidJar(AndroidApiLevel.LATEST))
+ .addKeepMainRule(TestClass.class)
+ .compile();
+ } catch (CompilationFailedException e) {
+ assertThat(
+ e.getMessage(),
+ containsString(
+ "can't find referenced method 'float floor(float)'"
+ + " in library class android.util.FloatMath"));
+ }
+ }
+
+ private byte[] getClassUsingRemovedApi() throws IOException {
+ return transformer(TestClass.class)
+ .transformMethodInsnInMethod(
+ "main",
+ (opcode, owner, name, descriptor, isInterface, visitor) -> {
+ if (name.equals("floor")) {
+ // The class android.util.FloatMath is still in android.jar, but without any
+ // methods.
+ // Methods where removed from API level 23.
+ visitor.visitMethodInsn(
+ opcode, "android/util/FloatMath", "floor", descriptor, isInterface);
+ } else {
+ visitor.visitMethodInsn(opcode, owner, name, descriptor, isInterface);
+ }
+ })
+ .transform();
+ }
+
+ static class TestClass {
+ public static float floor(float f) {
+ throw new RuntimeException("Stub");
+ }
+
+ public static void main(String[] args) {
+ System.out.println(floor(1.234f));
+ }
+ }
+}
