Add regression test for b/171867367
This test mixes desugared and non desugared inputs
Bug: 171867367
Change-Id: I4348ba63006c05ff14a3873b226c67bb089e5a17
diff --git a/src/test/java/com/android/tools/r8/desugaring/interfacemethods/Regress171867367.java b/src/test/java/com/android/tools/r8/desugaring/interfacemethods/Regress171867367.java
new file mode 100644
index 0000000..09c20c3
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/desugaring/interfacemethods/Regress171867367.java
@@ -0,0 +1,98 @@
+// 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.desugaring.interfacemethods;
+
+import static org.junit.Assert.assertThrows;
+
+import com.android.tools.r8.CompilationFailedException;
+import com.android.tools.r8.D8TestBuilder;
+import com.android.tools.r8.TestBase;
+import com.android.tools.r8.TestParameters;
+import com.android.tools.r8.utils.AndroidApiLevel;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+
+@RunWith(Parameterized.class)
+public class Regress171867367 extends TestBase {
+
+ private final TestParameters parameters;
+
+ @Parameterized.Parameters(name = "{0}")
+ public static List<Object[]> data() {
+ return buildParameters(
+ getTestParameters().withAllRuntimes().withAllApiLevelsAlsoForCf().build());
+ }
+
+ public Regress171867367(TestParameters parameters) {
+ this.parameters = parameters;
+ }
+
+ @Test
+ public void test() throws Exception {
+ Path path =
+ testForD8(Backend.CF)
+ .addProgramClasses(TestClass.class)
+ .setMinApi(parameters.getApiLevel())
+ .compile()
+ .writeToZip();
+ D8TestBuilder d8TestBuilder =
+ testForD8(parameters.getBackend())
+ .addProgramFiles(path)
+ .addProgramClasses(TestClass2.class)
+ .setMinApi(parameters.getApiLevel());
+ if (parameters.getApiLevel().isLessThan(AndroidApiLevel.L)) {
+ // TODO(b/171867367): Make us not fail when desugaring mixed (desugared and non desugared)
+ // inputs introduce a synthetic already present in the program input.
+ assertThrows(CompilationFailedException.class, d8TestBuilder::compile);
+ } else {
+ d8TestBuilder.run(TestClass.class).assertSuccessWithOutputLines("42", "43", "45");
+ }
+ }
+
+ static class TestClass {
+ public static void main(String[] args) {
+ List<Integer> values = new ArrayList<>();
+ values.add(42);
+ values.add(45);
+ values.add(43);
+ // Comparator.nulls{First,Last} are static interface methods, will trigger the CC class.
+ Collections.sort(
+ values,
+ Comparator.nullsFirst(
+ (a, b) -> {
+ return Integer.compare(a, b);
+ }));
+ Collections.sort(
+ values,
+ Comparator.nullsLast(
+ (a, b) -> {
+ return Integer.compare(a, b);
+ }));
+ for (Integer value : values) {
+ System.out.println(value);
+ }
+ }
+ }
+
+ static class TestClass2 {
+ public static void foo() {
+ List<Integer> values = new ArrayList<>();
+ values.add(142);
+ values.add(145);
+ values.add(143);
+ Collections.sort(
+ values,
+ Comparator.nullsFirst(
+ (a, b) -> {
+ return Integer.compare(a, b);
+ }));
+ }
+ }
+}
