[6785] | 1 | /**************************************************************** |
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one * |
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| 3 | * or more contributor license agreements. See the NOTICE file * |
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| 4 | * distributed with this work for additional information * |
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| 5 | * regarding copyright ownership. The ASF licenses this file * |
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| 6 | * to you under the Apache License, Version 2.0 (the * |
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| 7 | * "License"); you may not use this file except in compliance * |
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| 8 | * with the License. You may obtain a copy of the License at * |
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| 9 | * * |
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| 10 | * http://www.apache.org/licenses/LICENSE-2.0 * |
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| 11 | * * |
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| 12 | * Unless required by applicable law or agreed to in writing, * |
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| 13 | * software distributed under the License is distributed on an * |
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| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * |
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| 15 | * KIND, either express or implied. See the License for the * |
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| 16 | * specific language governing permissions and limitations * |
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| 17 | * under the License. * |
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| 18 | ****************************************************************/ |
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| 19 | |
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| 20 | package org.apache.james.mime4j.storage; |
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| 21 | |
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| 22 | import java.io.ByteArrayInputStream; |
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| 23 | import java.io.ByteArrayOutputStream; |
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| 24 | import java.io.IOException; |
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| 25 | |
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| 26 | import org.apache.james.mime4j.codec.CodecUtil; |
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| 27 | |
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| 28 | import junit.framework.TestCase; |
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| 29 | |
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| 30 | public class StorageProviderTest extends TestCase { |
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| 31 | |
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| 32 | public void testMemoryStorageProvider() throws Exception { |
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| 33 | StorageProvider provider = new MemoryStorageProvider(); |
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| 34 | |
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| 35 | testReadWrite(provider, 0); |
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| 36 | testReadWrite(provider, 1); |
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| 37 | testReadWrite(provider, 1024); |
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| 38 | testReadWrite(provider, 20000); |
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| 39 | |
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| 40 | testDelete(provider); |
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| 41 | } |
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| 42 | |
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| 43 | public void testTempFileStorageProvider() throws Exception { |
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| 44 | StorageProvider provider = new TempFileStorageProvider(); |
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| 45 | |
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| 46 | testReadWrite(provider, 0); |
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| 47 | testReadWrite(provider, 1); |
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| 48 | testReadWrite(provider, 1024); |
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| 49 | testReadWrite(provider, 20000); |
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| 50 | |
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| 51 | testDelete(provider); |
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| 52 | } |
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| 53 | |
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| 54 | public void testThresholdStorageProvider() throws Exception { |
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| 55 | final int threshold = 5000; |
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| 56 | StorageProvider backend = new TempFileStorageProvider(); |
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| 57 | StorageProvider provider = new ThresholdStorageProvider(backend, |
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| 58 | threshold); |
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| 59 | |
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| 60 | testReadWrite(provider, 0); |
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| 61 | testReadWrite(provider, 1); |
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| 62 | testReadWrite(provider, threshold - 1); |
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| 63 | testReadWrite(provider, threshold); |
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| 64 | testReadWrite(provider, threshold + 1); |
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| 65 | testReadWrite(provider, 2 * threshold); |
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| 66 | testReadWrite(provider, 10 * threshold); |
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| 67 | |
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| 68 | testDelete(provider); |
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| 69 | } |
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| 70 | |
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| 71 | public void testCipherStorageProvider() throws Exception { |
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| 72 | StorageProvider backend = new TempFileStorageProvider(); |
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| 73 | StorageProvider provider = new CipherStorageProvider(backend); |
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| 74 | |
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| 75 | testReadWrite(provider, 0); |
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| 76 | testReadWrite(provider, 1); |
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| 77 | testReadWrite(provider, 1024); |
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| 78 | testReadWrite(provider, 20000); |
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| 79 | |
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| 80 | testDelete(provider); |
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| 81 | } |
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| 82 | |
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| 83 | private void testReadWrite(StorageProvider provider, int size) |
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| 84 | throws IOException { |
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| 85 | testStore(provider, size); |
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| 86 | testCreateStorageOutputStream(provider, size); |
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| 87 | } |
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| 88 | |
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| 89 | private void testStore(StorageProvider provider, int size) |
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| 90 | throws IOException { |
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| 91 | byte[] data = createData(size); |
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| 92 | assertEquals(size, data.length); |
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| 93 | |
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| 94 | Storage storage = provider.store(new ByteArrayInputStream(data)); |
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| 95 | |
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| 96 | ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
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| 97 | CodecUtil.copy(storage.getInputStream(), baos); |
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| 98 | verifyData(data, baos.toByteArray()); |
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| 99 | } |
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| 100 | |
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| 101 | private void testCreateStorageOutputStream(StorageProvider provider, |
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| 102 | int size) throws IOException { |
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| 103 | byte[] data = createData(size); |
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| 104 | assertEquals(size, data.length); |
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| 105 | |
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| 106 | StorageOutputStream out = provider.createStorageOutputStream(); |
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| 107 | CodecUtil.copy(new ByteArrayInputStream(data), out); |
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| 108 | Storage storage = out.toStorage(); |
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| 109 | |
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| 110 | ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
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| 111 | CodecUtil.copy(storage.getInputStream(), baos); |
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| 112 | verifyData(data, baos.toByteArray()); |
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| 113 | } |
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| 114 | |
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| 115 | private void verifyData(byte[] expected, byte[] actual) { |
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| 116 | assertEquals(expected.length, actual.length); |
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| 117 | for (int i = 0; i < expected.length; i++) { |
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| 118 | assertEquals(expected[i], actual[i]); |
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| 119 | } |
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| 120 | } |
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| 121 | |
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| 122 | private byte[] createData(int size) { |
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| 123 | byte[] data = new byte[size]; |
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| 124 | for (int i = 0; i < size; i++) { |
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| 125 | data[i] = (byte) i; |
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| 126 | } |
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| 127 | return data; |
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| 128 | } |
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| 129 | |
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| 130 | private void testDelete(StorageProvider provider) throws IOException { |
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| 131 | Storage storage = provider.store(new ByteArrayInputStream( |
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| 132 | createData(512))); |
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| 133 | |
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| 134 | storage.delete(); |
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| 135 | |
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| 136 | // getInputStream has to throw an IllegalStateException |
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| 137 | try { |
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| 138 | storage.getInputStream(); |
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| 139 | fail(); |
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| 140 | } catch (IllegalStateException expected) { |
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| 141 | } |
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| 142 | |
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| 143 | // invoking delete a second time should not have any effect |
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| 144 | storage.delete(); |
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| 145 | } |
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| 146 | |
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| 147 | } |
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