[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.codec; |
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| 21 | |
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| 22 | import org.apache.james.mime4j.ExampleMail; |
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| 23 | |
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| 24 | import java.io.ByteArrayInputStream; |
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| 25 | import java.io.ByteArrayOutputStream; |
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| 26 | import java.io.IOException; |
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| 27 | import java.io.InputStream; |
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| 28 | |
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| 29 | import junit.framework.TestCase; |
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| 30 | |
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| 31 | public class CodecUtilTest extends TestCase { |
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| 32 | |
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| 33 | @Override |
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| 34 | protected void setUp() throws Exception { |
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| 35 | super.setUp(); |
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| 36 | } |
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| 37 | |
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| 38 | @Override |
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| 39 | protected void tearDown() throws Exception { |
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| 40 | super.tearDown(); |
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| 41 | } |
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| 42 | |
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| 43 | public void testCopy() throws Exception { |
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| 44 | byte[] content = ExampleMail.MULTIPART_WITH_BINARY_ATTACHMENTS_BYTES; |
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| 45 | ByteArrayInputStream in = new ByteArrayInputStream(content); |
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| 46 | ByteArrayOutputStream out = new ByteArrayOutputStream(); |
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| 47 | CodecUtil.copy(in, out); |
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| 48 | assertEquals(content, out.toByteArray()); |
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| 49 | } |
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| 50 | |
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| 51 | public void testEncodeQuotedPrintableLargeInput() throws Exception { |
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| 52 | StringBuilder sb = new StringBuilder(); |
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| 53 | for (int i = 0; i < 1024 * 5; i++) { |
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| 54 | sb.append((char) ('0' + (i % 10))); |
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| 55 | } |
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| 56 | String expected = sb.toString().replaceAll("(\\d{75})", "$1=\r\n"); |
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| 57 | |
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| 58 | InputStream in = new ByteArrayInputStream(sb.toString().getBytes("US-ASCII")); |
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| 59 | ByteArrayOutputStream out = new ByteArrayOutputStream(); |
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| 60 | CodecUtil.encodeQuotedPrintableBinary(in, out); |
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| 61 | String actual = new String(out.toByteArray(), "US-ASCII"); |
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| 62 | assertEquals(expected, actual); |
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| 63 | } |
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| 64 | |
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| 65 | public void testEncodeQuotedPrintableNonAsciiChars() throws Exception { |
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| 66 | String s = "7bit content with euro \u20AC symbol"; |
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| 67 | InputStream in = new ByteArrayInputStream(s.getBytes("iso-8859-15")); |
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| 68 | ByteArrayOutputStream out = new ByteArrayOutputStream(); |
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| 69 | CodecUtil.encodeQuotedPrintableBinary(in, out); |
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| 70 | String actual = new String(out.toByteArray(), "US-ASCII"); |
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| 71 | assertEquals("7bit=20content=20with=20euro=20=A4=20symbol", actual); |
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| 72 | } |
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| 73 | |
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| 74 | public void testBase64OutputStream() throws Exception { |
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| 75 | StringBuilder sb = new StringBuilder(2048); |
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| 76 | for (int i = 0; i < 128; i++) { |
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| 77 | sb.append("0123456789ABCDEF"); |
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| 78 | } |
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| 79 | String input = sb.toString(); |
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| 80 | String output = roundtripUsingOutputStream(input); |
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| 81 | assertEquals(input, output); |
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| 82 | } |
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| 83 | |
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| 84 | private String roundtripUsingOutputStream(String input) throws IOException { |
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| 85 | ByteArrayOutputStream out2 = new ByteArrayOutputStream(); |
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| 86 | Base64OutputStream outb64 = new Base64OutputStream(out2, 76); |
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| 87 | CodecUtil.copy(new ByteArrayInputStream(input.getBytes()), outb64); |
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| 88 | outb64.flush(); |
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| 89 | outb64.close(); |
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| 90 | |
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| 91 | InputStream is = new Base64InputStream(new ByteArrayInputStream(out2.toByteArray())); |
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| 92 | ByteArrayOutputStream outRoundtrip = new ByteArrayOutputStream(); |
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| 93 | CodecUtil.copy(is, outRoundtrip); |
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| 94 | String output = new String(outRoundtrip.toByteArray()); |
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| 95 | return output; |
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| 96 | } |
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| 97 | |
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| 98 | /** |
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| 99 | * This test is a proof for MIME4J-67 |
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| 100 | */ |
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| 101 | public void testBase64Encoder() throws Exception { |
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| 102 | StringBuilder sb = new StringBuilder(2048); |
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| 103 | for (int i = 0; i < 128; i++) { |
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| 104 | sb.append("0123456789ABCDEF"); |
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| 105 | } |
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| 106 | String input = sb.toString(); |
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| 107 | String output = roundtripUsingEncoder(input); |
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| 108 | assertEquals(input, output); |
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| 109 | } |
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| 110 | |
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| 111 | private String roundtripUsingEncoder(String input) throws IOException { |
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| 112 | ByteArrayOutputStream out = new ByteArrayOutputStream(); |
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| 113 | CodecUtil.encodeBase64(new ByteArrayInputStream(input.getBytes()), out); |
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| 114 | |
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| 115 | InputStream is = new Base64InputStream(new ByteArrayInputStream(out.toByteArray())); |
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| 116 | ByteArrayOutputStream outRoundtrip = new ByteArrayOutputStream(); |
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| 117 | CodecUtil.copy(is, outRoundtrip); |
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| 118 | String output = new String(outRoundtrip.toByteArray()); |
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| 119 | return output; |
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| 120 | } |
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| 121 | |
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| 122 | /* performance test, not a unit test */ |
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| 123 | /* |
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| 124 | public void testPerformance() throws Exception { |
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| 125 | // if (true) return; |
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| 126 | byte[] bytes = new byte[10000]; |
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| 127 | Random r = new Random(432875623874L); |
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| 128 | r.nextBytes(bytes); |
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| 129 | long totalEncoder1 = 0; |
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| 130 | long totalStream1 = 0; |
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| 131 | long totalEncoder2 = 0; |
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| 132 | for (int i = 0; i < 10000; i++) { |
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| 133 | int length = r.nextInt(1000); |
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| 134 | int pos = r.nextInt(9000); |
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| 135 | String input = new String(bytes, pos, length); |
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| 136 | long time1 = System.currentTimeMillis(); |
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| 137 | roundtripUsingEncoder(input); |
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| 138 | long time2 = System.currentTimeMillis(); |
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| 139 | roundtripUsingOutputStream(input); |
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| 140 | long time3 = System.currentTimeMillis(); |
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| 141 | roundtripUsingEncoder(input); |
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| 142 | long time4 = System.currentTimeMillis(); |
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| 143 | |
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| 144 | totalEncoder1 += time2-time1; |
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| 145 | totalStream1 += time3-time2; |
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| 146 | totalEncoder2 += time4-time3; |
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| 147 | } |
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| 148 | |
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| 149 | System.out.println("Encoder 1st: "+totalEncoder1); |
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| 150 | System.out.println("Encoder 2nd: "+totalEncoder2); |
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| 151 | System.out.println("Stream 1st: "+totalStream1); |
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| 152 | } |
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| 153 | */ |
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| 154 | |
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| 155 | private void assertEquals(byte[] expected, byte[] actual) { |
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| 156 | StringBuilder buffer = new StringBuilder(expected.length); |
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| 157 | assertEquals(expected.length, actual.length); |
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| 158 | for (int i = 0; i < actual.length; i++) { |
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| 159 | buffer.append((char)actual[i]); |
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| 160 | assertEquals("Mismatch@" + i, expected[i], actual[i]); |
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| 161 | } |
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| 162 | } |
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| 163 | } |
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