/*
 * 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 2012-2021 the original author or authors.
 */
package org.assertj.core.api.period;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

import java.time.Period;

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.BDDAssertions.then;
import static org.assertj.core.error.ShouldBePeriod.shouldBeNegative;
import static org.assertj.core.util.AssertionsUtil.expectAssertionError;
import static org.assertj.core.util.FailureMessages.actualIsNull;

/**
 * @author Hayden Meloche
 */
@DisplayName("PeriodAssert isNegative")
class PeriodAssert_isNegative_Test {

  @Test
  void should_pass_if_period_is_negative() {
    // GIVEN
    Period period = Period.ofMonths(-10);
    // WHEN/THEN
    then(period).isNegative();
  }

  @Test
  void should_fail_when_period_is_null() {
    // GIVEN
    Period period = null;
    // WHEN
    final AssertionError code = expectAssertionError(() -> assertThat(period).isNegative());
    // THEN
    then(code).hasMessage(actualIsNull());
  }

  @Test
  void should_fail_if_period_is_positive() {
    // GIVEN
    Period period = Period.ofMonths(10);
    // WHEN
    final AssertionError code = expectAssertionError(() -> assertThat(period).isNegative());
    // THEN
    then(code).hasMessage(shouldBeNegative(period).create());
  }

  @Test
  void should_fail_if_period_is_zero() {
    // GIVEN
    Period period = Period.ofMonths(0);
    // WHEN
    final AssertionError code = expectAssertionError(() -> assertThat(period).isNegative());
    // THEN
    then(code).hasMessage(shouldBeNegative(period).create());
  }
}
