/*
 * 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 2012-2019 the original author or authors.
 */
package org.assertj.core.internal.booleanarrays;

import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
import static org.assertj.core.api.Assertions.assertThatNullPointerException;
import static org.assertj.core.error.ShouldStartWith.shouldStartWith;
import static org.assertj.core.internal.ErrorMessages.valuesToLookForIsNull;
import static org.assertj.core.test.BooleanArrays.arrayOf;
import static org.assertj.core.test.BooleanArrays.emptyArray;
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.BooleanArrays;
import org.assertj.core.internal.BooleanArraysBaseTest;
import org.junit.jupiter.api.Test;

/**
 * Tests for <code>{@link BooleanArrays#assertStartsWith(AssertionInfo, boolean[], boolean[])}</code>.
 * 
 * @author Alex Ruiz
 * @author Joel Costigliola
 */
public class BooleanArrays_assertStartsWith_Test extends BooleanArraysBaseTest {

  @Test
  public void should_throw_error_if_sequence_is_null() {
    assertThatNullPointerException().isThrownBy(() -> arrays.assertStartsWith(someInfo(), actual, null))
                                    .withMessage(valuesToLookForIsNull());
  }

  @Test
  public void should_pass_if_actual_and_given_values_are_empty() {
    actual = emptyArray();
    arrays.assertContains(someInfo(), actual, emptyArray());
  }

  @Test
  public void should_fail_if_array_of_values_to_look_for_is_empty_and_actual_is_not() {
    assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> arrays.assertStartsWith(someInfo(), actual, emptyArray()));
  }

  @Test
  public void should_fail_if_actual_is_null() {
    assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> arrays.assertStartsWith(someInfo(), null, arrayOf(true)))
                                                   .withMessage(actualIsNull());
  }

  @Test
  public void should_fail_if_sequence_is_bigger_than_actual() {
    AssertionInfo info = someInfo();
    boolean[] sequence = { true, false, false, true, true, false };
    try {
      arrays.assertStartsWith(info, actual, sequence);
    } catch (AssertionError e) {
      verifyFailureThrownWhenSequenceNotFound(info, sequence);
      return;
    }
    failBecauseExpectedAssertionErrorWasNotThrown();
  }

  @Test
  public void should_fail_if_actual_does_not_start_with_sequence() {
    AssertionInfo info = someInfo();
    boolean[] sequence = { false, true };
    try {
      arrays.assertStartsWith(info, actual, sequence);
    } catch (AssertionError e) {
      verifyFailureThrownWhenSequenceNotFound(info, sequence);
      return;
    }
    failBecauseExpectedAssertionErrorWasNotThrown();
  }

  @Test
  public void should_fail_if_actual_starts_with_first_elements_of_sequence_only() {
    AssertionInfo info = someInfo();
    boolean[] sequence = { true, true };
    try {
      arrays.assertStartsWith(info, actual, sequence);
    } catch (AssertionError e) {
      verifyFailureThrownWhenSequenceNotFound(info, sequence);
      return;
    }
    failBecauseExpectedAssertionErrorWasNotThrown();
  }

  private void verifyFailureThrownWhenSequenceNotFound(AssertionInfo info, boolean[] sequence) {
    verify(failures).failure(info, shouldStartWith(actual, sequence));
  }

  @Test
  public void should_pass_if_actual_starts_with_sequence() {
    arrays.assertStartsWith(someInfo(), actual, arrayOf(true, false));
  }

  @Test
  public void should_pass_if_actual_and_sequence_are_equal() {
    actual = arrayOf(true, false, false, true);
    arrays.assertStartsWith(someInfo(), actual, arrayOf(true, false, false, true));
  }
}
