/*
 * 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.doublearrays;

import static org.assertj.core.error.ShouldBeSorted.shouldBeSorted;
import static org.assertj.core.error.ShouldBeSorted.shouldBeSortedAccordingToGivenComparator;
import static org.assertj.core.test.DoubleArrays.arrayOf;
import static org.assertj.core.test.DoubleArrays.emptyArray;
import static org.assertj.core.test.TestData.someInfo;
import static org.assertj.core.util.FailureMessages.actualIsNull;

import org.assertj.core.api.AssertionInfo;
import org.assertj.core.internal.DoubleArrays;
import org.assertj.core.internal.DoubleArraysBaseTest;
import org.junit.Test;


/**
 * Tests for <code>{@link DoubleArrays#assertIsSorted(AssertionInfo, Object[])}</code>.
 * 
 * @author Joel Costigliola
 */
public class DoubleArrays_assertIsSorted_Test extends DoubleArraysBaseTest {

  @Override
  protected void initActualArray() {
    actual = arrayOf(1.0, 2.0, 3.0, 4.0, 4.0);
  }

  @Test
  public void should_pass_if_actual_is_sorted_in_ascending_order() {
    arrays.assertIsSorted(someInfo(), actual);
  }

  @Test
  public void should_pass_if_actual_is_empty() {
    arrays.assertIsSorted(someInfo(), emptyArray());
  }

  @Test
  public void should_pass_if_actual_contains_only_one_element() {
    arrays.assertIsSorted(someInfo(), arrayOf(1.0));
  }

  @Test
  public void should_fail_if_actual_is_null() {
    thrown.expectAssertionError(actualIsNull());
    arrays.assertIsSorted(someInfo(), (double[]) null);
  }

  @Test
  public void should_fail_if_actual_is_not_sorted_in_ascending_order() {
    actual = arrayOf(1.0, 3.0, 2.0);
    thrown.expectAssertionError(shouldBeSorted(1, actual));
    arrays.assertIsSorted(someInfo(), actual);
  }

  @Test
  public void should_pass_if_actual_is_sorted_in_ascending_order_according_to_custom_comparison_strategy() {
    actual = arrayOf(1.0, -2.0, 3.0, -4.0, 4.0);
    arraysWithCustomComparisonStrategy.assertIsSorted(someInfo(), actual);
  }

  @Test
  public void should_pass_if_actual_is_empty_whatever_custom_comparison_strategy_is() {
    arraysWithCustomComparisonStrategy.assertIsSorted(someInfo(), emptyArray());
  }

  @Test
  public void should_pass_if_actual_contains_only_one_element_according_to_custom_comparison_strategy() {
    arraysWithCustomComparisonStrategy.assertIsSorted(someInfo(), arrayOf(1.0));
  }

  @Test
  public void should_fail_if_actual_is_null_whatever_custom_comparison_strategy_is() {
    thrown.expectAssertionError(actualIsNull());
    arraysWithCustomComparisonStrategy.assertIsSorted(someInfo(), (double[]) null);
  }

  @Test
  public void should_fail_if_actual_is_not_sorted_in_ascending_order_according_to_custom_comparison_strategy() {
    actual = arrayOf(1.0, 3.0, 2.0);
    thrown.expectAssertionError(shouldBeSortedAccordingToGivenComparator(1, actual, comparatorForCustomComparisonStrategy()));
    arraysWithCustomComparisonStrategy.assertIsSorted(someInfo(), actual);
  }

}
