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/**
 * 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 2012-2016 the original author or authors.
 */
package com.fitbur.assertj.error;

import java.util.Set;

/**
 * Creates an error message indicating that an assertion that verifies a map contains a key..
 * 
 * @author Nicolas François
 * @author Joel Costigliola
 */
public class ShouldContainKeys extends BasicErrorMessageFactory {

  /**
   * Creates a new {@link ShouldContainKeys}.
   * 
   * @param actual the actual value in the failed assertion.
   * @return the created {@code ErrorMessageFactory}.
   */
  public static  ErrorMessageFactory shouldContainKeys(Object actual, Set keys) {
    if (keys.size() == 1) return new ShouldContainKeys(actual, keys.iterator().next());
    return new ShouldContainKeys(actual, keys);
  }

  private  ShouldContainKeys(Object actual, Set key) {
    super("%nExpecting:%n <%s>%nto contain keys:%n <%s>", actual, key);
  }

  private  ShouldContainKeys(Object actual, K key) {
    super("%nExpecting:%n <%s>%nto contain key:%n <%s>", actual, key);
  }
}