| // 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.ir.optimize.switches; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotEquals; |
| 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 StringSwitchWithHashCollisionsTest extends TestBase { |
| |
| private final TestParameters parameters; |
| |
| @Parameters(name = "{0}") |
| public static TestParametersCollection data() { |
| return getTestParameters().withAllRuntimesAndApiLevels().build(); |
| } |
| |
| public StringSwitchWithHashCollisionsTest(TestParameters parameters) { |
| this.parameters = parameters; |
| } |
| |
| @Test |
| public void testR8() throws Exception { |
| assertEquals("Hello world!".hashCode(), "Hello worla~".hashCode()); |
| assertEquals("Hello world!".hashCode(), "Hello worlb_".hashCode()); |
| assertNotEquals("Hello world!".hashCode(), "_".hashCode()); |
| |
| testForR8(parameters.getBackend()) |
| .addInnerClasses(StringSwitchWithHashCollisionsTest.class) |
| .addKeepMainRule(TestClass.class) |
| .addOptionsModification(options -> assertTrue(options.minimumStringSwitchSize >= 3)) |
| .setMinApi(parameters.getApiLevel()) |
| .compile() |
| .run( |
| parameters.getRuntime(), |
| TestClass.class, |
| "Hello world!", |
| "_", |
| "Hello worla~", |
| "_", |
| "Hello worlb_", |
| "_", |
| "DONE") |
| .assertSuccessWithOutputLines( |
| "Hello world!", "Hello world, ish!", "Hello world, ish2!", "DONE"); |
| } |
| |
| static class TestClass { |
| |
| public static void main(String[] args) { |
| for (String string : args) { |
| switch (string) { |
| case "Hello world!": |
| System.out.print("Hello world!"); |
| break; |
| |
| case "Hello worla~": |
| System.out.print("Hello world, ish!"); |
| break; |
| |
| case "Hello worlb_": |
| System.out.print("Hello world, ish2!"); |
| break; |
| |
| case "_": |
| System.out.println(); |
| break; |
| |
| default: |
| System.out.println("DONE"); |
| } |
| } |
| } |
| } |
| } |