/*
 * 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.iterables;

import static java.util.Collections.emptyList;
import static org.assertj.core.error.ShouldContainOnly.shouldContainOnly;
import static org.assertj.core.internal.ErrorMessages.valuesToLookForIsNull;
import static org.assertj.core.test.ObjectArrays.emptyArray;
import static org.assertj.core.test.TestData.someInfo;
import static org.assertj.core.test.TestFailures.failBecauseExpectedAssertionErrorWasNotThrown;
import static org.assertj.core.util.Arrays.array;
import static org.assertj.core.util.FailureMessages.actualIsNull;
import static org.assertj.core.util.Lists.newArrayList;
import static org.mockito.Mockito.verify;

import java.util.Collection;

import org.assertj.core.api.AssertionInfo;
import org.assertj.core.internal.Iterables;
import org.assertj.core.internal.IterablesBaseTest;
import org.junit.Test;

/**
 * Tests for <code>{@link Iterables#assertContainsOnly(AssertionInfo, Collection, Object[])}</code>.
 * 
 * @author Alex Ruiz
 * @author Joel Costigliola
 */
public class Iterables_assertContainsOnly_Test extends IterablesBaseTest {

  @Test
  public void should_pass_if_actual_contains_given_values_only() {
    iterables.assertContainsOnly(someInfo(), actual, array("Luke", "Yoda", "Leia"));
  }

  @Test
  public void should_pass_if_actual_contains_given_values_only_with_null_elements() {
    actual.add(null);
    actual.add(null);
    iterables.assertContainsOnly(someInfo(), actual, array("Luke", null, "Yoda", "Leia", null));
  }

  @Test
  public void should_pass_if_actual_contains_given_values_only_in_different_order() {
    iterables.assertContainsOnly(someInfo(), actual, array("Leia", "Yoda", "Luke"));
  }

  @Test
  public void should_pass_if_actual_contains_given_values_only_more_than_once() {
    actual.addAll(newArrayList("Luke", "Luke"));
    iterables.assertContainsOnly(someInfo(), actual, array("Luke", "Yoda", "Leia"));
  }

  @Test
  public void should_pass_if_actual_contains_given_values_only_even_if_duplicated() {
    iterables.assertContainsOnly(someInfo(), actual, array("Luke", "Luke", "Luke", "Yoda", "Leia"));
  }

  @Test
  public void should_pass_if_actual_and_given_values_are_empty() {
    actual.clear();
    iterables.assertContainsOnly(someInfo(), actual, array());
  }

  @Test
  public void should_fail_if_array_of_values_to_look_for_is_empty_and_actual_is_not() {
    thrown.expectAssertionError();
    iterables.assertContainsOnly(someInfo(), actual, emptyArray());
  }

  @Test
  public void should_throw_error_if_array_of_values_to_look_for_is_null() {
    thrown.expectNullPointerException(valuesToLookForIsNull());
    iterables.assertContainsOnly(someInfo(), emptyList(), null);
  }

  @Test
  public void should_fail_if_actual_is_null() {
    thrown.expectAssertionError(actualIsNull());
    iterables.assertContainsOnly(someInfo(), null, array("Yoda"));
  }

  @Test
  public void should_fail_if_actual_does_not_contain_all_given_values() {
    AssertionInfo info = someInfo();
    Object[] expected = { "Luke", "Yoda", "Han" };
    try {
      iterables.assertContainsOnly(info, actual, expected);
    } catch (AssertionError e) {
      verify(failures).failure(info,
                               shouldContainOnly(actual, expected, newArrayList("Han"), newArrayList("Leia")));
      return;
    }
    failBecauseExpectedAssertionErrorWasNotThrown();
  }

  @Test
  public void should_fail_if_actual_contains_additional_elements() {
    AssertionInfo info = someInfo();
    Object[] expected = { "Luke", "Yoda" };
    try {
      iterables.assertContainsOnly(info, actual, expected);
    } catch (AssertionError e) {
      verify(failures).failure(info,
                               shouldContainOnly(actual, expected, newArrayList(), newArrayList("Leia")));
      return;
    }
    failBecauseExpectedAssertionErrorWasNotThrown();
  }

  @Test
  public void should_fail_if_actual_contains_a_subset_of_expected_elements() {
    AssertionInfo info = someInfo();
    Object[] expected = { "Luke", "Yoda", "Obiwan", "Leia" };
    try {
      iterables.assertContainsOnly(info, actual, expected);
    } catch (AssertionError e) {
      verify(failures).failure(info,
                               shouldContainOnly(actual, expected, newArrayList("Obiwan"), newArrayList()));
      return;
    }
    failBecauseExpectedAssertionErrorWasNotThrown();
  }

  // ------------------------------------------------------------------------------------------------------------------
  // tests using a custom comparison strategy
  // ------------------------------------------------------------------------------------------------------------------

  @Test
  public void should_pass_if_actual_contains_given_values_only_according_to_custom_comparison_strategy() {
    iterablesWithCaseInsensitiveComparisonStrategy.assertContainsOnly(someInfo(), actual,
                                                                      array("LUKE", "YODA", "Leia"));
  }

  @Test
  public void should_pass_if_actual_contains_given_values_only_in_different_order_according_to_custom_comparison_strategy() {
    iterablesWithCaseInsensitiveComparisonStrategy.assertContainsOnly(someInfo(), actual,
                                                                      array("LEIA", "yoda", "LukE"));
  }

  @Test
  public void should_pass_if_actual_contains_given_values_only_more_than_once_according_to_custom_comparison_strategy() {
    actual.addAll(newArrayList("Luke", "Luke"));
    iterablesWithCaseInsensitiveComparisonStrategy.assertContainsOnly(someInfo(), actual,
                                                                      array("luke", "YOda", "LeIA"));
  }

  @Test
  public void should_pass_if_actual_contains_given_values_only_even_if_duplicated_according_to_custom_comparison_strategy() {
    actual.addAll(newArrayList("LUKE"));
    iterablesWithCaseInsensitiveComparisonStrategy.assertContainsOnly(someInfo(), actual,
                                                                      array("LUke", "LUKE", "lukE", "YOda", "Leia"));
  }

  @Test
  public void should_fail_if_actual_does_not_contain_given_values_only_according_to_custom_comparison_strategy() {
    AssertionInfo info = someInfo();
    Object[] expected = { "Luke", "Yoda", "Han" };
    try {
      iterablesWithCaseInsensitiveComparisonStrategy.assertContainsOnly(info, actual, expected);
    } catch (AssertionError e) {
      verify(failures).failure(info, shouldContainOnly(actual, expected, newArrayList("Han"), newArrayList("Leia"),
                                                       comparisonStrategy));
      return;
    }
    failBecauseExpectedAssertionErrorWasNotThrown();
  }

}
