| // Copyright (c) 2019, 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.ir.optimize.switches; |
| |
| import static org.junit.Assert.assertTrue; |
| |
| import com.android.tools.r8.TestBase; |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestParametersCollection; |
| 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 StringSwitchWithSameTargetTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public StringSwitchWithSameTargetTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void test() throws Exception { |
| testForR8(parameters.getBackend()) |
| .addProgramClasses(TestClass.class) |
| .addKeepMainRule(TestClass.class) |
| .addOptionsModification( |
| options -> { |
| assertTrue(options.minimumStringSwitchSize >= 3); |
| options.minimumStringSwitchSize = 2; |
| }) |
| .setMinApi(parameters.getApiLevel()) |
| .run(parameters.getRuntime(), TestClass.class, "Hello", "_", "world!") |
| .assertSuccessWithOutput("Hello world!"); |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) { |
| for (String arg : args) { |
| switch (arg) { |
| case "Hello": |
| case "world!": |
| System.out.print(arg); |
| break; |
| default: |
| System.out.print(" "); |
| break; |
| } |
| } |
| } |
| } |
| } |