001/* 002 * Copyright 2006-2007 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.batch.test; 018 019import static org.junit.Assert.assertEquals; 020 021import java.io.BufferedReader; 022import java.io.File; 023import java.io.FileReader; 024 025import org.springframework.core.io.Resource; 026 027/** 028 * This class can be used to assert that two files are the same. 029 * 030 * @author Dan Garrette 031 * @since 2.0 032 */ 033public abstract class AssertFile { 034 035 public static void assertFileEquals(File expected, File actual) throws Exception { 036 BufferedReader expectedReader = new BufferedReader(new FileReader(expected)); 037 BufferedReader actualReader = new BufferedReader(new FileReader(actual)); 038 try { 039 int lineNum = 1; 040 for (String expectedLine = null; (expectedLine = expectedReader.readLine()) != null; lineNum++) { 041 String actualLine = actualReader.readLine(); 042 assertEquals("Line number " + lineNum + " does not match.", expectedLine, actualLine); 043 } 044 045 String actualLine = actualReader.readLine(); 046 assertEquals("More lines than expected. There should not be a line number " + lineNum + ".", null, 047 actualLine); 048 } 049 finally { 050 expectedReader.close(); 051 actualReader.close(); 052 } 053 } 054 055 public static void assertFileEquals(Resource expected, Resource actual) throws Exception { 056 assertFileEquals(expected.getFile(), actual.getFile()); 057 } 058 059 public static void assertLineCount(int expectedLineCount, File file) throws Exception { 060 BufferedReader expectedReader = new BufferedReader(new FileReader(file)); 061 try { 062 int lineCount = 0; 063 while (expectedReader.readLine() != null) { 064 lineCount++; 065 } 066 assertEquals(expectedLineCount, lineCount); 067 } 068 finally { 069 expectedReader.close(); 070 } 071 } 072 073 public static void assertLineCount(int expectedLineCount, Resource resource) throws Exception { 074 assertLineCount(expectedLineCount, resource.getFile()); 075 } 076}