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 the original author or authors. 014 */ 015 package org.fest.assertions; 016 017 /** 018 * Understands a template of assertion methods 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 }