Add regression test for date format LLL and LLLL with desugared library
Bug: b/320922785
Change-Id: I223d66ee3061f12cd52cd07f17f08ce2083cf937
diff --git a/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/DateTimeFormatterStandaloneMonthTest.java b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/DateTimeFormatterStandaloneMonthTest.java
new file mode 100644
index 0000000..0a83c05
--- /dev/null
+++ b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/DateTimeFormatterStandaloneMonthTest.java
@@ -0,0 +1,120 @@
+// Copyright (c) 2024, 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 static com.android.tools.r8.desugar.desugaredlibrary.test.CompilationSpecification.DEFAULT_SPECIFICATIONS;
+import static com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification.JDK8_DESCRIPTOR;
+import static com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification.getJdk8Jdk11;
+
+import com.android.tools.r8.SingleTestRunResult;
+import com.android.tools.r8.TestParameters;
+import com.android.tools.r8.ToolHelper.DexVm.Version;
+import com.android.tools.r8.desugar.desugaredlibrary.test.CompilationSpecification;
+import com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification;
+import com.android.tools.r8.utils.StringUtils;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeFormatterBuilder;
+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 DateTimeFormatterStandaloneMonthTest extends DesugaredLibraryTestBase {
+
+ private static final String expectedOutputDesugaredLibJdk8 =
+ StringUtils.lines(
+ "1 - 1", "2 - 2", "3 - 3", "4 - 4", "5 - 5", "6 - 6", "7 - 7", "8 - 8", "9 - 9",
+ "10 - 10", "11 - 11", "12 - 12");
+ private static final String expectedOutputLibJdk11 =
+ StringUtils.lines(
+ "Jan - January",
+ "Feb - February",
+ "Mar - March",
+ "Apr - April",
+ "May - May",
+ "Jun - June",
+ "Jul - July",
+ "Aug - August",
+ "Sep - September",
+ "Oct - October",
+ "Nov - November",
+ // TODO(b/323306225): December is missing.
+ " - ");
+ private static final String expectedOutput =
+ StringUtils.lines(
+ "Jan - January",
+ "Feb - February",
+ "Mar - March",
+ "Apr - April",
+ "May - May",
+ "Jun - June",
+ "Jul - July",
+ "Aug - August",
+ "Sep - September",
+ "Oct - October",
+ "Nov - November",
+ "Dec - December");
+
+ private final TestParameters parameters;
+ private final CompilationSpecification compilationSpecification;
+ private final LibraryDesugaringSpecification libraryDesugaringSpecification;
+
+ @Parameters(name = "{0}, spec: {1}, {2}")
+ public static List<Object[]> data() {
+ return buildParameters(
+ getTestParameters().withDexRuntimes().withAllApiLevels().build(),
+ getJdk8Jdk11(),
+ DEFAULT_SPECIFICATIONS);
+ }
+
+ public DateTimeFormatterStandaloneMonthTest(
+ TestParameters parameters,
+ LibraryDesugaringSpecification libraryDesugaringSpecification,
+ CompilationSpecification compilationSpecification) {
+ this.parameters = parameters;
+ this.compilationSpecification = compilationSpecification;
+ this.libraryDesugaringSpecification = libraryDesugaringSpecification;
+ }
+
+ @Test
+ public void testFormatter() throws Throwable {
+ SingleTestRunResult<?> run =
+ testForDesugaredLibrary(
+ parameters, libraryDesugaringSpecification, compilationSpecification)
+ .addInnerClasses(getClass())
+ .addKeepMainRule(TestClass.class)
+ .run(parameters.getRuntime(), TestClass.class)
+ .assertSuccess();
+ if (apiLevelWithJavaTime(parameters)) {
+ run.assertSuccessWithOutput(expectedOutput);
+ } else if (libraryDesugaringSpecification.getDescriptor() == JDK8_DESCRIPTOR) {
+ run.assertSuccessWithOutput(expectedOutputDesugaredLibJdk8);
+ } else if (parameters.getRuntime().asDex().getVersion().isEqualTo(Version.V4_0_4)) {
+ // Not sure why this works for Dalvik 4.0.4, but not really relevant.
+ run.assertSuccessWithOutput(expectedOutput);
+ } else {
+ run.assertSuccessWithOutput(expectedOutputLibJdk11);
+ }
+ }
+
+ static class TestClass {
+
+ public static void main(String[] args) {
+ DateTimeFormatterBuilder builder = new DateTimeFormatterBuilder();
+ DateTimeFormatter formatter1 = DateTimeFormatter.ofPattern("LLL");
+ DateTimeFormatter formatter2 = DateTimeFormatter.ofPattern("LLLL");
+ DateTimeFormatter formatter =
+ builder.append(formatter1).appendLiteral(" - ").append(formatter2).toFormatter();
+ for (int month = 1; month <= 12; month++) {
+ LocalDateTime dateTime = LocalDateTime.of(2024, month, 1, 0, 0);
+ String str = dateTime.format(formatter);
+ System.out.println(str);
+ }
+ }
+ }
+}
