/*
 * 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.error;

import static java.lang.String.format;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.error.ShouldHaveSameHashCode.shouldHaveSameHashCode;
import static org.assertj.core.presentation.StandardRepresentation.STANDARD_REPRESENTATION;

import org.assertj.core.description.TextDescription;
import org.junit.Test;

public class ShouldHaveSameHashCode_create_Test {

  @Test
  public void should_create_error_message() {
    // GIVEN
    Object actual = new FixedHashCode(123);
    Object expected = new FixedHashCode(456);
    // WHEN
    String message = shouldHaveSameHashCode(actual, expected).create(new TextDescription("Test"),
                                                                     STANDARD_REPRESENTATION);
    // THEN
    assertThat(message).isEqualTo(format("[Test] %n" +
                                         "Expecting%n" +
                                         "  <FixedHashCode[code=123]>%n" +
                                         "to have the same hash code as:%n" +
                                         "  <FixedHashCode[code=456]>%n" +
                                         "but actual hash code is%n" +
                                         "  <123>%n" +
                                         "while expected hash code was:%n" +
                                         "  <456>"));
  }

  private static class FixedHashCode {

    private int code;

    public FixedHashCode(int code) {
      this.code = code;
    }

    @Override
    public int hashCode() {
      return code;
    }

    @Override
    public boolean equals(Object obj) {
      if (this == obj) return true;
      if (obj == null) return false;
      if (getClass() != obj.getClass()) return false;
      FixedHashCode other = (FixedHashCode) obj;
      if (code != other.code) return false;
      return true;
    }

    @Override
    public String toString() {
      return String.format("FixedHashCode[code=%s]", code);
    }

  }
}
