java.time.Instant reproduction test
Bug: 174632922
Change-Id: I3c552093db37c740de7e9a350cc5b9d7174fe736
diff --git a/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/InstantTest.java b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/InstantTest.java
new file mode 100644
index 0000000..7e38a30
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/InstantTest.java
@@ -0,0 +1,75 @@
+// 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.desugar.desugaredlibrary;
+
+import com.android.tools.r8.TestParameters;
+import com.android.tools.r8.utils.BooleanUtils;
+import java.time.Instant;
+import java.time.ZoneOffset;
+import java.util.List;
+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 InstantTest extends DesugaredLibraryTestBase {
+
+ private final TestParameters parameters;
+ private final boolean shrinkDesugaredLibrary;
+
+ @Parameters(name = "{1}, shrinkDesugaredLibrary: {0}")
+ public static List<Object[]> data() {
+ return buildParameters(
+ BooleanUtils.values(), getTestParameters().withDexRuntimes().withAllApiLevels().build());
+ }
+
+ public InstantTest(boolean shrinkDesugaredLibrary, TestParameters parameters) {
+ this.shrinkDesugaredLibrary = shrinkDesugaredLibrary;
+ this.parameters = parameters;
+ }
+
+ @Test
+ public void testInstantD8() throws Exception {
+ KeepRuleConsumer keepRuleConsumer = createKeepRuleConsumer(parameters);
+ testForD8()
+ .addInnerClasses(InstantTest.class)
+ .setMinApi(parameters.getApiLevel())
+ .enableCoreLibraryDesugaring(parameters.getApiLevel(), keepRuleConsumer)
+ .compile()
+ .addDesugaredCoreLibraryRunClassPath(
+ this::buildDesugaredLibrary,
+ parameters.getApiLevel(),
+ keepRuleConsumer.get(),
+ shrinkDesugaredLibrary)
+ .run(parameters.getRuntime(), Executor.class)
+ .assertSuccessWithOutputLines("1970-01-02T10:17:36.789Z");
+ }
+
+ @Test
+ public void testInstantR8() throws Exception {
+ KeepRuleConsumer keepRuleConsumer = createKeepRuleConsumer(parameters);
+ testForR8(parameters.getBackend())
+ .addInnerClasses(InstantTest.class)
+ .setMinApi(parameters.getApiLevel())
+ .addKeepClassAndMembersRules(Executor.class)
+ .enableCoreLibraryDesugaring(parameters.getApiLevel(), keepRuleConsumer)
+ .compile()
+ .addDesugaredCoreLibraryRunClassPath(
+ this::buildDesugaredLibrary,
+ parameters.getApiLevel(),
+ keepRuleConsumer.get(),
+ shrinkDesugaredLibrary)
+ .run(parameters.getRuntime(), Executor.class)
+ .assertSuccessWithOutputLines("1970-01-02T10:17:36.789Z");
+ }
+
+ static class Executor {
+
+ public static void main(String[] args) {
+ System.out.println(Instant.ofEpochMilli(123456789L).atOffset(ZoneOffset.UTC));
+ }
+ }
+}
