/*
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 *
 * Copyright 2012-2018 the original author or authors.
 */
package org.assertj.core.internal.objects;

import static org.assertj.core.error.ShouldHaveSameHashCode.shouldHaveSameHashCode;
import static org.assertj.core.test.TestData.someInfo;
import static org.assertj.core.test.TestFailures.failBecauseExpectedAssertionErrorWasNotThrown;
import static org.assertj.core.util.FailureMessages.actualIsNull;
import static org.mockito.Mockito.verify;

import org.assertj.core.api.AssertionInfo;
import org.assertj.core.internal.ObjectsBaseTest;
import org.assertj.core.test.Jedi;
import org.junit.Before;
import org.junit.Test;

public class Objects_assertHasSameHashCodeAs_Test extends ObjectsBaseTest {

  public static final Jedi OTHER_JEDI = new Jedi("Yoda", "Green");

  private Jedi greenYoda;

  @Before
  public void setUpOnce() {
    greenYoda = new Jedi("Yoda", "green");
  }

  @Test
  public void should_pass_if_actual_has_the_same_hash_code_as_other() {
    // Jedi class hashCode is computed with the Jedi's name only
    Jedi redYoda = new Jedi("Yoda", "Red");
    objects.assertHasSameHashCodeAs(someInfo(), greenYoda, redYoda);
    objects.assertHasSameHashCodeAs(someInfo(), redYoda, greenYoda);
    objects.assertHasSameHashCodeAs(someInfo(), greenYoda, new Jedi("Yoda", "green"));
    objects.assertHasSameHashCodeAs(someInfo(), greenYoda, greenYoda);
  }

  @Test
  public void should_throw_error_if_other_is_null() {
    thrown.expectNullPointerException("The object used to compare actual's hash code with should not be null");
    objects.assertHasSameHashCodeAs(someInfo(), greenYoda, null);
  }

  @Test
  public void should_fail_if_actual_is_null() {
    thrown.expectAssertionError(actualIsNull());
    objects.assertHasSameHashCodeAs(someInfo(), null, greenYoda);
  }

  @Test
  public void should_fail_if_actual_does_not_have_the_same_hash_code_as_other() {
    AssertionInfo info = someInfo();
    // Jedi class hashCode is computed with the Jedi's name only
    Jedi luke = new Jedi("Luke", "green");
    try {
      objects.assertHasSameHashCodeAs(info, greenYoda, luke);
      failBecauseExpectedAssertionErrorWasNotThrown();
    } catch (AssertionError err) {
      verify(failures).failure(info, shouldHaveSameHashCode(greenYoda, luke));
    }
  }

}
