001 // Copyright 2005 The Apache Software Foundation 002 // 003 // Licensed under the Apache License, Version 2.0 (the "License"); 004 // you may not use this file except in compliance with the License. 005 // 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 010 // distributed under the License is distributed on an "AS IS" BASIS, 011 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012 // See the License for the specific language governing permissions and 013 // limitations under the License. 014 015 package org.apache.tapestry.asset; 016 017 import static org.easymock.EasyMock.expect; 018 019 import java.net.URL; 020 021 import org.apache.hivemind.ApplicationRuntimeException; 022 import org.apache.hivemind.ClassResolver; 023 import org.apache.hivemind.impl.DefaultClassResolver; 024 import org.apache.tapestry.BaseComponentTestCase; 025 import org.testng.annotations.Test; 026 027 /** 028 * Tests for {@link org.apache.tapestry.asset.ResourceDigestSourceImpl}. 029 * 030 * @author Howard M. Lewis Ship 031 * @since 4.0 032 */ 033 @Test 034 public class TestResourceDigestSource extends BaseComponentTestCase 035 { 036 public void testSuccess() 037 { 038 ResourceDigestSourceImpl s = new ResourceDigestSourceImpl(); 039 s.setClassResolver(new DefaultClassResolver()); 040 041 assertEquals("a5f4663532ea3efe22084df086482290", s 042 .getDigestForResource("/org/apache/tapestry/asset/tapestry-in-action.png")); 043 } 044 045 public void testMissing() 046 { 047 ResourceDigestSourceImpl s = new ResourceDigestSourceImpl(); 048 s.setClassResolver(new DefaultClassResolver()); 049 050 try 051 { 052 s.getDigestForResource("/foo/bar/baz"); 053 unreachable(); 054 } 055 catch (ApplicationRuntimeException ex) 056 { 057 assertEquals("Classpath resource '/foo/bar/baz' does not exist.", ex.getMessage()); 058 } 059 } 060 061 public void testFolderInJar() 062 { 063 ResourceDigestSourceImpl s = new ResourceDigestSourceImpl(); 064 s.setClassResolver(new DefaultClassResolver()); 065 // the next will throw a NPE inside JarURLInputStream.close 066 // there doesn't seem to be a way to prevent this - so users 067 // of this method should be aware 068 try 069 { 070 s.getDigestForResource("/org/apache/hivemind"); 071 fail("digests for packages in jars are known to throw NPE"); 072 } 073 catch (NullPointerException e) 074 { 075 // ignore 076 } 077 } 078 079 public void testCache() 080 { 081 ClassResolver resolver = newMock(ClassResolver.class); 082 083 URL url = getClass().getResource("tapestry-in-action.png"); 084 085 expect(resolver.getResource("/foo")).andReturn(url); 086 087 replay(); 088 089 ResourceDigestSourceImpl s = new ResourceDigestSourceImpl(); 090 s.setClassResolver(resolver); 091 092 assertEquals("a5f4663532ea3efe22084df086482290", s.getDigestForResource("/foo")); 093 094 // Try it in the cache; note that the class resolver is not 095 // invoked this time. 096 097 assertEquals("a5f4663532ea3efe22084df086482290", s.getDigestForResource("/foo")); 098 099 verify(); 100 101 expect(resolver.getResource("/foo")).andReturn(url); 102 103 replay(); 104 105 // This clears the cache 106 107 s.resetEventDidOccur(); 108 109 // So this goes to the ClassResolver 110 111 assertEquals("a5f4663532ea3efe22084df086482290", s.getDigestForResource("/foo")); 112 113 verify(); 114 115 } 116 }