Test for Month name on various platforms
Bug: 176502609
Change-Id: I98be1a70fa9c0038dc5030d51cb8fef90103c073
diff --git a/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/MonthTest.java b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/MonthTest.java
new file mode 100644
index 0000000..6b2692b
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/MonthTest.java
@@ -0,0 +1,88 @@
+// 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.desugar.desugaredlibrary;
+
+import com.android.tools.r8.TestParameters;
+import com.android.tools.r8.TestParametersCollection;
+import com.android.tools.r8.TestRuntime;
+import com.android.tools.r8.utils.StringUtils;
+import java.time.Month;
+import java.time.format.TextStyle;
+import java.util.Locale;
+import org.junit.Assume;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+
+@RunWith(Parameterized.class)
+public class MonthTest extends DesugaredLibraryTestBase {
+ private final TestParameters parameters;
+
+ private static final String EXPECTED_JAVA_8_OUTPUT = StringUtils.lines("4");
+ private static final String EXPECTED_JAVA_9_OUTPUT = StringUtils.lines("April");
+
+ @Parameterized.Parameters(name = "{0}")
+ public static TestParametersCollection data() {
+ return getTestParameters().withAllRuntimes().withAllApiLevels().build();
+ }
+
+ public MonthTest(TestParameters parameters) {
+ this.parameters = parameters;
+ }
+
+ private String getExpectedResult(TestParameters parameters) {
+ if (parameters.isCfRuntime()) {
+ if (parameters.getRuntime().asCf().isNewerThan(TestRuntime.CfVm.JDK8)) {
+ return EXPECTED_JAVA_9_OUTPUT;
+ }
+ return EXPECTED_JAVA_8_OUTPUT;
+ }
+ assert parameters.isDexRuntime();
+ // Assumes java.time is desugared only if any library desugaring is required, i.e., on 26.
+ if (requiresAnyCoreLibDesugaring(parameters)) {
+ return EXPECTED_JAVA_8_OUTPUT;
+ }
+ return EXPECTED_JAVA_9_OUTPUT;
+ }
+
+ @Test
+ public void testMonthD8() throws Exception {
+ if (parameters.isCfRuntime()) {
+ testForJvm()
+ .addInnerClasses(MonthTest.class)
+ .run(parameters.getRuntime(), MonthTest.Main.class)
+ .assertSuccessWithOutput(getExpectedResult(parameters));
+ return;
+ }
+ testForD8(parameters.getBackend())
+ .addInnerClasses(MonthTest.class)
+ .setMinApi(parameters.getApiLevel())
+ .enableCoreLibraryDesugaring(parameters.getApiLevel())
+ .compile()
+ .addDesugaredCoreLibraryRunClassPath(this::buildDesugaredLibrary, parameters.getApiLevel())
+ .run(parameters.getRuntime(), Main.class)
+ .assertSuccessWithOutput(getExpectedResult(parameters));
+ }
+
+ @Test
+ public void testMonthR8() throws Exception {
+ Assume.assumeTrue(parameters.isDexRuntime());
+ testForR8(parameters.getBackend())
+ .addInnerClasses(MonthTest.class)
+ .addKeepMainRule(MonthTest.Main.class)
+ .setMinApi(parameters.getApiLevel())
+ .enableCoreLibraryDesugaring(parameters.getApiLevel())
+ .compile()
+ .addDesugaredCoreLibraryRunClassPath(this::buildDesugaredLibrary, parameters.getApiLevel())
+ .run(parameters.getRuntime(), Main.class)
+ .assertSuccessWithOutput(getExpectedResult(parameters));
+ }
+
+ static class Main {
+ public static void main(String[] args) {
+ System.out.println(Month.APRIL.getDisplayName(TextStyle.FULL_STANDALONE, Locale.UK));
+ }
+ }
+}
