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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;

/**
 * Creates an error message indicating that an assertion that verifies a group of elements is {@code null} or empty failed. A
 * group of elements can be a collection, an array or a {@code String}.
 * 
 * @author Alex Ruiz
 * @author Yvonne Wang
 */
public class ShouldBeNullOrEmpty extends BasicErrorMessageFactory {

  /**
   * Creates a new instance of {@link ShouldBeNullOrEmpty}.
   * @param actual the actual value in the failed assertion.
   * @return the created of {@code ErrorMessageFactory}.
   */
  public static ErrorMessageFactory shouldBeNullOrEmpty(Object actual) {
    return new ShouldBeNullOrEmpty(actual);
  }

  private ShouldBeNullOrEmpty(Object actual) {
    super("%nExpecting null or empty but was:<%s>", actual);
  }
}