001 /* 002 * Created on Sep 21, 2010 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with 005 * the License. You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on 010 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the 011 * specific language governing permissions and limitations under the License. 012 * 013 * Copyright @2010-2011 the original author or authors. 014 */ 015 package org.fest.assertions.error; 016 017 import org.fest.assertions.description.Description; 018 019 /** 020 * Creates an error message that indicates an assertion that verifies that an object is not {@code null} failed. 021 * 022 * @author Alex Ruiz 023 */ 024 public class ShouldNotBeNull implements ErrorMessageFactory { 025 026 private static final ShouldNotBeNull INSTANCE = new ShouldNotBeNull(); 027 028 /** 029 * Returns the singleton instance of this class. 030 * @return the singleton instance of this class. 031 */ 032 public static ErrorMessageFactory shouldNotBeNull() { 033 return INSTANCE; 034 } 035 036 private ShouldNotBeNull() {} 037 038 /** {@inheritDoc} */ 039 public String create(Description d) { 040 return MessageFormatter.instance().format(d, "expecting actual not to be null"); 041 } 042 }