[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.io; |
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| 21 | |
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| 22 | import org.apache.james.mime4j.io.BufferedLineReaderInputStream; |
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| 23 | |
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| 24 | import java.io.ByteArrayInputStream; |
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| 25 | |
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| 26 | import junit.framework.TestCase; |
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| 27 | |
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| 28 | public class BufferedLineReaderInputStreamBufferTest extends TestCase { |
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| 29 | |
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| 30 | public void testInvalidInput() throws Exception { |
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| 31 | String text = "blah blah yada yada"; |
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| 32 | byte[] b1 = text.getBytes("US-ASCII"); |
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| 33 | String pattern = "blah"; |
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| 34 | byte[] b2 = pattern.getBytes("US-ASCII"); |
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| 35 | BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096); |
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| 36 | inbuffer.fillBuffer(); |
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| 37 | |
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| 38 | assertEquals('b', inbuffer.read()); |
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| 39 | assertEquals('l', inbuffer.read()); |
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| 40 | |
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| 41 | try { |
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| 42 | inbuffer.charAt(1); |
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| 43 | fail("IndexOutOfBoundsException should have been thrown"); |
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| 44 | } catch (IndexOutOfBoundsException expected) { |
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| 45 | } |
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| 46 | try { |
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| 47 | inbuffer.charAt(20); |
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| 48 | fail("IndexOutOfBoundsException should have been thrown"); |
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| 49 | } catch (IndexOutOfBoundsException expected) { |
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| 50 | } |
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| 51 | try { |
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| 52 | inbuffer.indexOf(b2, -1, 3); |
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| 53 | fail("IndexOutOfBoundsException should have been thrown"); |
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| 54 | } catch (IndexOutOfBoundsException expected) { |
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| 55 | } |
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| 56 | try { |
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| 57 | inbuffer.indexOf(b2, 1, 3); |
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| 58 | fail("IndexOutOfBoundsException should have been thrown"); |
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| 59 | } catch (IndexOutOfBoundsException expected) { |
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| 60 | } |
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| 61 | try { |
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| 62 | inbuffer.indexOf(b2, 2, -1); |
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| 63 | fail("IndexOutOfBoundsException should have been thrown"); |
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| 64 | } catch (IndexOutOfBoundsException expected) { |
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| 65 | } |
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| 66 | try { |
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| 67 | inbuffer.indexOf(b2, 2, 18); |
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| 68 | fail("IndexOutOfBoundsException should have been thrown"); |
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| 69 | } catch (IndexOutOfBoundsException expected) { |
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| 70 | } |
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| 71 | assertEquals(5, inbuffer.indexOf(b2, 2, 17)); |
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| 72 | try { |
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| 73 | inbuffer.indexOf((byte)' ', -1, 3); |
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| 74 | fail("IndexOutOfBoundsException should have been thrown"); |
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| 75 | } catch (IndexOutOfBoundsException expected) { |
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| 76 | } |
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| 77 | try { |
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| 78 | inbuffer.indexOf((byte)' ', 1, 3); |
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| 79 | fail("IndexOutOfBoundsException should have been thrown"); |
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| 80 | } catch (IndexOutOfBoundsException expected) { |
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| 81 | } |
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| 82 | try { |
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| 83 | inbuffer.indexOf((byte)' ', 2, -1); |
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| 84 | fail("IndexOutOfBoundsException should have been thrown"); |
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| 85 | } catch (IndexOutOfBoundsException expected) { |
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| 86 | } |
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| 87 | try { |
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| 88 | inbuffer.indexOf((byte)' ', 2, 18); |
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| 89 | fail("IndexOutOfBoundsException should have been thrown"); |
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| 90 | } catch (IndexOutOfBoundsException expected) { |
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| 91 | } |
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| 92 | assertEquals(10, inbuffer.indexOf((byte)'y', 2, 17)); |
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| 93 | } |
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| 94 | |
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| 95 | public void testBasicOperations() throws Exception { |
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| 96 | String text = "bla bla yada yada haha haha"; |
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| 97 | byte[] b1 = text.getBytes("US-ASCII"); |
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| 98 | BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096); |
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| 99 | inbuffer.fillBuffer(); |
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| 100 | assertEquals(0, inbuffer.pos()); |
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| 101 | assertEquals(27, inbuffer.limit()); |
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| 102 | assertEquals(27, inbuffer.length()); |
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| 103 | |
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| 104 | inbuffer.read(); |
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| 105 | inbuffer.read(); |
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| 106 | |
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| 107 | assertEquals(2, inbuffer.pos()); |
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| 108 | assertEquals(27, inbuffer.limit()); |
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| 109 | assertEquals(25, inbuffer.length()); |
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| 110 | |
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| 111 | byte[] tmp1 = new byte[3]; |
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| 112 | assertEquals(3, inbuffer.read(tmp1)); |
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| 113 | |
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| 114 | assertEquals(5, inbuffer.pos()); |
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| 115 | assertEquals(27, inbuffer.limit()); |
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| 116 | assertEquals(22, inbuffer.length()); |
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| 117 | |
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| 118 | byte[] tmp2 = new byte[22]; |
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| 119 | assertEquals(22, inbuffer.read(tmp2)); |
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| 120 | |
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| 121 | assertEquals(27, inbuffer.pos()); |
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| 122 | assertEquals(27, inbuffer.limit()); |
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| 123 | assertEquals(0, inbuffer.length()); |
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| 124 | |
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| 125 | assertEquals(-1, inbuffer.read(tmp1)); |
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| 126 | assertEquals(-1, inbuffer.read(tmp1)); |
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| 127 | assertEquals(-1, inbuffer.read()); |
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| 128 | assertEquals(-1, inbuffer.read()); |
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| 129 | } |
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| 130 | |
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| 131 | public void testPatternMatching1() throws Exception { |
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| 132 | String text = "blabla d is the word"; |
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| 133 | String pattern = "d"; |
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| 134 | byte[] b1 = text.getBytes("US-ASCII"); |
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| 135 | byte[] b2 = pattern.getBytes("US-ASCII"); |
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| 136 | BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096); |
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| 137 | inbuffer.fillBuffer(); |
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| 138 | int i = inbuffer.indexOf(b2); |
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| 139 | assertEquals(7, i); |
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| 140 | } |
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| 141 | |
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| 142 | public void testPatternMatching2() throws Exception { |
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| 143 | String text = "disddisdissdsidsidsiid"; |
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| 144 | String pattern = "siid"; |
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| 145 | byte[] b1 = text.getBytes("US-ASCII"); |
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| 146 | byte[] b2 = pattern.getBytes("US-ASCII"); |
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| 147 | BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096); |
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| 148 | inbuffer.fillBuffer(); |
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| 149 | int i = inbuffer.indexOf(b2); |
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| 150 | assertEquals(18, i); |
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| 151 | } |
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| 152 | |
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| 153 | public void testPatternMatching3() throws Exception { |
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| 154 | String text = "bla bla yada yada haha haha"; |
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| 155 | String pattern = "blah"; |
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| 156 | byte[] b1 = text.getBytes("US-ASCII"); |
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| 157 | byte[] b2 = pattern.getBytes("US-ASCII"); |
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| 158 | BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096); |
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| 159 | inbuffer.fillBuffer(); |
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| 160 | int i = inbuffer.indexOf(b2); |
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| 161 | assertEquals(-1, i); |
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| 162 | } |
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| 163 | |
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| 164 | public void testPatternMatching4() throws Exception { |
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| 165 | String text = "bla bla yada yada haha haha"; |
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| 166 | String pattern = "bla"; |
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| 167 | byte[] b1 = text.getBytes("US-ASCII"); |
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| 168 | byte[] b2 = pattern.getBytes("US-ASCII"); |
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| 169 | BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096); |
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| 170 | inbuffer.fillBuffer(); |
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| 171 | int i = inbuffer.indexOf(b2); |
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| 172 | assertEquals(0, i); |
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| 173 | } |
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| 174 | |
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| 175 | public void testPatternOutOfBound() throws Exception { |
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| 176 | String text = "bla bla yada yada haha haha"; |
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| 177 | String pattern1 = "bla bla"; |
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| 178 | byte[] b1 = text.getBytes("US-ASCII"); |
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| 179 | byte[] b2 = pattern1.getBytes("US-ASCII"); |
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| 180 | BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096); |
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| 181 | inbuffer.fillBuffer(); |
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| 182 | byte[] tmp = new byte[3]; |
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| 183 | inbuffer.read(tmp); |
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| 184 | int i = inbuffer.indexOf(b2, inbuffer.pos(), inbuffer.length()); |
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| 185 | assertEquals(-1, i); |
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| 186 | i = inbuffer.indexOf(b2, inbuffer.pos(), inbuffer.length() - 1); |
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| 187 | assertEquals(-1, i); |
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| 188 | } |
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| 189 | |
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| 190 | public void testCharOutOfBound() throws Exception { |
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| 191 | String text = "zzz blah blah blah ggg"; |
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| 192 | byte[] b1 = text.getBytes("US-ASCII"); |
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| 193 | BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096); |
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| 194 | inbuffer.fillBuffer(); |
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| 195 | byte[] tmp = new byte[3]; |
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| 196 | inbuffer.read(tmp); |
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| 197 | int i = inbuffer.indexOf((byte)'z', inbuffer.pos(), inbuffer.length()); |
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| 198 | assertEquals(-1, i); |
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| 199 | i = inbuffer.indexOf((byte)'g', inbuffer.pos(), inbuffer.length() - 3); |
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| 200 | assertEquals(-1, i); |
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| 201 | } |
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| 202 | |
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| 203 | public void test0xFFInBinaryStream() throws Exception { |
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| 204 | byte[] b1 = new byte[] {1, 2, 3, (byte) 0xff, 10, 1, 2, 3}; |
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| 205 | byte[] b2 = new byte[] {10}; |
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| 206 | BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(b1), 4096); |
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| 207 | inbuffer.fillBuffer(); |
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| 208 | int i = inbuffer.indexOf(b2); |
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| 209 | assertEquals(4, i); |
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| 210 | } |
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| 211 | } |
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