001    /*
002     * Created on Oct 4, 2009
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 @2009-2011 the original author or authors.
014     */
015    package org.fest.assertions;
016    
017    /**
018     * Template for assertions for numbers (primitives and objects.)
019     *
020     * @author Alex Ruiz
021     *
022     * @since 1.2
023     */
024    public interface NumberAssert {
025    
026      /**
027       * Verifies that the actual number is equal to zero.
028       * @return this assertion object.
029       * @throws AssertionError if the actual number is not equal to zero.
030       */
031      NumberAssert isZero();
032    
033      /**
034       * Verifies that the actual number is positive.
035       * @return this assertion object.
036       * @throws AssertionError if the actual number is not positive.
037       */
038      NumberAssert isPositive();
039    
040      /**
041       * Verifies that the actual number is negative.
042       * @return this assertion object.
043       * @throws AssertionError if the actual number is not negative.
044       */
045      NumberAssert isNegative();
046    }