src/test/java/com/android/tools/r8/shaking/examples/TreeShakingAssumevalues7Test.java

// Copyright (c) 2018, 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.shaking.examples;

import com.android.tools.r8.TestParameters;
import com.android.tools.r8.shaking.TreeShakingTest;
import com.android.tools.r8.utils.StringUtils;
import com.android.tools.r8.utils.codeinspector.CodeInspector;
import com.android.tools.r8.utils.codeinspector.ConstStringInstructionSubject;
import com.android.tools.r8.utils.codeinspector.InstructionSubject.JumboStringMode;
import com.google.common.collect.ImmutableList;
import java.util.List;
import org.junit.Assert;
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 TreeShakingAssumevalues7Test extends TreeShakingTest {

  @Parameters(name = "mode:{0}-{1} minify:{2}")
  public static List<Object[]> data() {
    return defaultTreeShakingParameters();
  }

  public TreeShakingAssumevalues7Test(
      Frontend frontend, TestParameters parameters, MinifyMode minify) {
    super(frontend, parameters, minify);
  }

  @Override
  protected String getName() {
    return "examples/assumevalues7";
  }

  @Override
  protected String getMainClass() {
    return "assumevalues7.Assumevalues";
  }

  @Test
  public void test() throws Exception {
    runTest(
        getParameters().isDexRuntime()
            ? TreeShakingAssumevalues7Test::assumevalues7CheckCode
            : null,
        TreeShakingAssumevalues7Test::assumevalues7CheckOutput,
        null,
        ImmutableList.of("src/test/examples/assumevalues7/keep-rules.txt"));
  }

  private static void assumevalues7CheckCode(CodeInspector inspector) {
    inspector.forAllClasses(c -> {
      c.forAllMethods(m -> {
        if (m.getFinalName().equals("main")) {
          m.iterateInstructions().forEachRemaining(i -> {
            if (i.isConstString(JumboStringMode.ALLOW)) {
              ConstStringInstructionSubject str = (ConstStringInstructionSubject) i;
              assert !str.getString().toASCIIString().contains("NOPE");
            }
          });
        }
      });
    });
  }

  private static void assumevalues7CheckOutput(String output1, String output2) {
    Assert.assertEquals(StringUtils.lines("NOPE_STATIC_NOT_NULL", "NOPE_NOT_NULL", "OK"), output1);
    Assert.assertEquals(StringUtils.lines("OK"), output2);
  }
}