// 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.invalid;

import static org.hamcrest.CoreMatchers.allOf;
import static org.hamcrest.CoreMatchers.anyOf;
import static org.hamcrest.CoreMatchers.containsString;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.hasItems;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;

import com.android.tools.r8.CompilationFailedException;
import com.android.tools.r8.TestBase;
import com.android.tools.r8.TestParameters;
import com.android.tools.r8.TestParametersCollection;
import com.android.tools.r8.ToolHelper;
import com.android.tools.r8.errors.DuplicateTypesDiagnostic;
import com.android.tools.r8.origin.Origin;
import com.android.tools.r8.position.Position;
import com.android.tools.r8.references.Reference;
import com.android.tools.r8.utils.StringUtils;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;

@RunWith(Parameterized.class)
public class DuplicateProgramTypesTest extends TestBase {

  static final String EXPECTED = StringUtils.lines("Hello, world");

  private final TestParameters parameters;

  @Parameterized.Parameters(name = "{0}")
  public static TestParametersCollection data() {
    return getTestParameters().withNoneRuntime().build();
  }

  public DuplicateProgramTypesTest(TestParameters parameters) {
    this.parameters = parameters;
  }

  private final Origin originA =
      new Origin(Origin.root()) {
        @Override
        public String part() {
          return "SourceA";
        }
      };

  private final Origin originB =
      new Origin(Origin.root()) {
        @Override
        public String part() {
          return "SourceB";
        }
      };

  @Test
  public void test() throws Exception {
    try {
      byte[] bytes = ToolHelper.getClassAsBytes(TestClass.class);
      testForD8()
          .apply(
              b -> {
                b.getBuilder().addClassProgramData(bytes, originA);
                b.getBuilder().addClassProgramData(bytes, originB);
              })
          .compileWithExpectedDiagnostics(
              diagnostics -> {
                diagnostics.assertOnlyErrors();
                diagnostics.assertErrorsCount(1);
                DuplicateTypesDiagnostic diagnostic =
                    (DuplicateTypesDiagnostic) diagnostics.getErrors().get(0);
                assertEquals(Position.UNKNOWN, diagnostic.getPosition());
                assertThat(
                    diagnostic.getType(), equalTo(Reference.classFromClass(TestClass.class)));
                assertThat(diagnostic.getOrigin(), anyOf(equalTo(originA), equalTo(originB)));
                assertThat(diagnostic.getOrigins(), hasItems(originA, originB));
                assertThat(
                    diagnostic.getDiagnosticMessage(),
                    allOf(
                        containsString("defined multiple"),
                        containsString("SourceA"),
                        containsString("SourceB")));
              });
    } catch (CompilationFailedException e) {
      return; // Success.
    }
    fail("Expected test to fail with CompilationFailedException");
  }

  static class TestClass {

    public static void main(String[] args) {
      System.out.println("Hello, world");
    }
  }
}