1 | /**************************************************************** |
---|
2 | * Licensed to the Apache Software Foundation (ASF) under one * |
---|
3 | * or more contributor license agreements. See the NOTICE file * |
---|
4 | * distributed with this work for additional information * |
---|
5 | * regarding copyright ownership. The ASF licenses this file * |
---|
6 | * to you under the Apache License, Version 2.0 (the * |
---|
7 | * "License"); you may not use this file except in compliance * |
---|
8 | * with the License. You may obtain a copy of the License at * |
---|
9 | * * |
---|
10 | * http://www.apache.org/licenses/LICENSE-2.0 * |
---|
11 | * * |
---|
12 | * Unless required by applicable law or agreed to in writing, * |
---|
13 | * software distributed under the License is distributed on an * |
---|
14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * |
---|
15 | * KIND, either express or implied. See the License for the * |
---|
16 | * specific language governing permissions and limitations * |
---|
17 | * under the License. * |
---|
18 | ****************************************************************/ |
---|
19 | |
---|
20 | package org.apache.james.mime4j.storage; |
---|
21 | |
---|
22 | import java.io.ByteArrayInputStream; |
---|
23 | import java.io.ByteArrayOutputStream; |
---|
24 | import java.io.IOException; |
---|
25 | |
---|
26 | import org.apache.james.mime4j.codec.CodecUtil; |
---|
27 | |
---|
28 | import junit.framework.TestCase; |
---|
29 | |
---|
30 | public class StorageProviderTest extends TestCase { |
---|
31 | |
---|
32 | public void testMemoryStorageProvider() throws Exception { |
---|
33 | StorageProvider provider = new MemoryStorageProvider(); |
---|
34 | |
---|
35 | testReadWrite(provider, 0); |
---|
36 | testReadWrite(provider, 1); |
---|
37 | testReadWrite(provider, 1024); |
---|
38 | testReadWrite(provider, 20000); |
---|
39 | |
---|
40 | testDelete(provider); |
---|
41 | } |
---|
42 | |
---|
43 | public void testTempFileStorageProvider() throws Exception { |
---|
44 | StorageProvider provider = new TempFileStorageProvider(); |
---|
45 | |
---|
46 | testReadWrite(provider, 0); |
---|
47 | testReadWrite(provider, 1); |
---|
48 | testReadWrite(provider, 1024); |
---|
49 | testReadWrite(provider, 20000); |
---|
50 | |
---|
51 | testDelete(provider); |
---|
52 | } |
---|
53 | |
---|
54 | public void testThresholdStorageProvider() throws Exception { |
---|
55 | final int threshold = 5000; |
---|
56 | StorageProvider backend = new TempFileStorageProvider(); |
---|
57 | StorageProvider provider = new ThresholdStorageProvider(backend, |
---|
58 | threshold); |
---|
59 | |
---|
60 | testReadWrite(provider, 0); |
---|
61 | testReadWrite(provider, 1); |
---|
62 | testReadWrite(provider, threshold - 1); |
---|
63 | testReadWrite(provider, threshold); |
---|
64 | testReadWrite(provider, threshold + 1); |
---|
65 | testReadWrite(provider, 2 * threshold); |
---|
66 | testReadWrite(provider, 10 * threshold); |
---|
67 | |
---|
68 | testDelete(provider); |
---|
69 | } |
---|
70 | |
---|
71 | public void testCipherStorageProvider() throws Exception { |
---|
72 | StorageProvider backend = new TempFileStorageProvider(); |
---|
73 | StorageProvider provider = new CipherStorageProvider(backend); |
---|
74 | |
---|
75 | testReadWrite(provider, 0); |
---|
76 | testReadWrite(provider, 1); |
---|
77 | testReadWrite(provider, 1024); |
---|
78 | testReadWrite(provider, 20000); |
---|
79 | |
---|
80 | testDelete(provider); |
---|
81 | } |
---|
82 | |
---|
83 | private void testReadWrite(StorageProvider provider, int size) |
---|
84 | throws IOException { |
---|
85 | testStore(provider, size); |
---|
86 | testCreateStorageOutputStream(provider, size); |
---|
87 | } |
---|
88 | |
---|
89 | private void testStore(StorageProvider provider, int size) |
---|
90 | throws IOException { |
---|
91 | byte[] data = createData(size); |
---|
92 | assertEquals(size, data.length); |
---|
93 | |
---|
94 | Storage storage = provider.store(new ByteArrayInputStream(data)); |
---|
95 | |
---|
96 | ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
---|
97 | CodecUtil.copy(storage.getInputStream(), baos); |
---|
98 | verifyData(data, baos.toByteArray()); |
---|
99 | } |
---|
100 | |
---|
101 | private void testCreateStorageOutputStream(StorageProvider provider, |
---|
102 | int size) throws IOException { |
---|
103 | byte[] data = createData(size); |
---|
104 | assertEquals(size, data.length); |
---|
105 | |
---|
106 | StorageOutputStream out = provider.createStorageOutputStream(); |
---|
107 | CodecUtil.copy(new ByteArrayInputStream(data), out); |
---|
108 | Storage storage = out.toStorage(); |
---|
109 | |
---|
110 | ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
---|
111 | CodecUtil.copy(storage.getInputStream(), baos); |
---|
112 | verifyData(data, baos.toByteArray()); |
---|
113 | } |
---|
114 | |
---|
115 | private void verifyData(byte[] expected, byte[] actual) { |
---|
116 | assertEquals(expected.length, actual.length); |
---|
117 | for (int i = 0; i < expected.length; i++) { |
---|
118 | assertEquals(expected[i], actual[i]); |
---|
119 | } |
---|
120 | } |
---|
121 | |
---|
122 | private byte[] createData(int size) { |
---|
123 | byte[] data = new byte[size]; |
---|
124 | for (int i = 0; i < size; i++) { |
---|
125 | data[i] = (byte) i; |
---|
126 | } |
---|
127 | return data; |
---|
128 | } |
---|
129 | |
---|
130 | private void testDelete(StorageProvider provider) throws IOException { |
---|
131 | Storage storage = provider.store(new ByteArrayInputStream( |
---|
132 | createData(512))); |
---|
133 | |
---|
134 | storage.delete(); |
---|
135 | |
---|
136 | // getInputStream has to throw an IllegalStateException |
---|
137 | try { |
---|
138 | storage.getInputStream(); |
---|
139 | fail(); |
---|
140 | } catch (IllegalStateException expected) { |
---|
141 | } |
---|
142 | |
---|
143 | // invoking delete a second time should not have any effect |
---|
144 | storage.delete(); |
---|
145 | } |
---|
146 | |
---|
147 | } |
---|