001    /*
002     * Created on Oct 24, 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.data.Offset;
018    
019    /**
020     * Creates an error message indicating that an assertion that verifies that two numbers are equal within a positive
021     * offset failed.
022     * 
023     * @author Alex Ruiz
024     * @author Joel Costigliola
025     */
026    public class ShouldBeEqualWithinOffset extends BasicErrorMessageFactory {
027    
028      /**
029       * Creates a new <code>{@link ShouldBeEqualWithinOffset}</code>.
030       * @param <T> guarantees that the values used in this factory have the same type.
031       * @param actual the actual value in the failed assertion.
032       * @param expected the expected value in the failed assertion.
033       * @param offset the given positive offset.
034       * @param difference the effective difference between actual and expected.
035       * @return the created {@code ErrorMessageFactory}.
036       */
037      public static <T extends Number> ErrorMessageFactory shouldBeEqual(T actual, T expected, Offset<T> offset, T difference) {
038        return new ShouldBeEqualWithinOffset(actual, expected, offset, difference);
039      }
040    
041      private ShouldBeEqualWithinOffset(Number actual, Number expected, Offset<?> offset, Number difference) {
042        super("expecting <%s> to be close to <%s> within offset <%s> but offset was <%s>", actual, expected, offset.value, difference);
043      }
044    }