[120] | 1 | /** |
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| 2 | * |
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| 3 | * Licensed under the Apache License, Version 2.0 |
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| 4 | * (the "License"); you may not use this file except in compliance with |
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| 5 | * the License. You may obtain a copy of the License at |
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| 6 | * |
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| 7 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 8 | * |
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| 9 | * Unless required by applicable law or agreed to in writing, software |
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| 10 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
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| 12 | * implied. See the License for the specific language governing |
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| 13 | * permissions and limitations under the License. |
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| 14 | * |
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| 15 | * @author: Sriram Rao (Kosmix Corp.) |
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| 16 | * |
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| 17 | * Unit tests for testing the KosmosFileSystem API implementation. |
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| 18 | */ |
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| 19 | |
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| 20 | package org.apache.hadoop.fs.kfs; |
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| 21 | |
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| 22 | import java.io.*; |
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| 23 | import java.net.*; |
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| 24 | |
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| 25 | import junit.framework.TestCase; |
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| 26 | |
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| 27 | import org.apache.hadoop.conf.Configuration; |
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| 28 | import org.apache.hadoop.fs.FSDataInputStream; |
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| 29 | import org.apache.hadoop.fs.FSDataOutputStream; |
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| 30 | import org.apache.hadoop.fs.FileSystem; |
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| 31 | import org.apache.hadoop.fs.FileStatus; |
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| 32 | import org.apache.hadoop.fs.FileUtil; |
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| 33 | import org.apache.hadoop.fs.Path; |
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| 34 | |
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| 35 | import org.apache.hadoop.fs.kfs.KosmosFileSystem; |
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| 36 | |
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| 37 | public class TestKosmosFileSystem extends TestCase { |
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| 38 | |
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| 39 | KosmosFileSystem kosmosFileSystem; |
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| 40 | KFSEmulationImpl kfsEmul; |
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| 41 | Path baseDir; |
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| 42 | |
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| 43 | @Override |
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| 44 | protected void setUp() throws IOException { |
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| 45 | Configuration conf = new Configuration(); |
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| 46 | |
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| 47 | kfsEmul = new KFSEmulationImpl(conf); |
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| 48 | kosmosFileSystem = new KosmosFileSystem(kfsEmul); |
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| 49 | // a dummy URI; we are not connecting to any setup here |
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| 50 | kosmosFileSystem.initialize(URI.create("kfs:///"), conf); |
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| 51 | baseDir = new Path(System.getProperty("test.build.data", "/tmp" ) + |
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| 52 | "/kfs-test"); |
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| 53 | } |
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| 54 | |
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| 55 | @Override |
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| 56 | protected void tearDown() throws Exception { |
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| 57 | |
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| 58 | } |
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| 59 | |
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| 60 | // @Test |
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| 61 | // Check all the directory API's in KFS |
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| 62 | public void testDirs() throws Exception { |
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| 63 | Path subDir1 = new Path("dir.1"); |
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| 64 | |
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| 65 | // make the dir |
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| 66 | kosmosFileSystem.mkdirs(baseDir); |
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| 67 | assertTrue(kosmosFileSystem.isDirectory(baseDir)); |
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| 68 | kosmosFileSystem.setWorkingDirectory(baseDir); |
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| 69 | |
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| 70 | kosmosFileSystem.mkdirs(subDir1); |
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| 71 | assertTrue(kosmosFileSystem.isDirectory(subDir1)); |
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| 72 | |
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| 73 | assertFalse(kosmosFileSystem.exists(new Path("test1"))); |
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| 74 | assertFalse(kosmosFileSystem.isDirectory(new Path("test/dir.2"))); |
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| 75 | |
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| 76 | FileStatus[] p = kosmosFileSystem.listStatus(baseDir); |
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| 77 | assertEquals(p.length, 1); |
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| 78 | |
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| 79 | kosmosFileSystem.delete(baseDir, true); |
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| 80 | assertFalse(kosmosFileSystem.exists(baseDir)); |
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| 81 | } |
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| 82 | |
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| 83 | // @Test |
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| 84 | // Check the file API's |
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| 85 | public void testFiles() throws Exception { |
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| 86 | Path subDir1 = new Path("dir.1"); |
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| 87 | Path file1 = new Path("dir.1/foo.1"); |
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| 88 | Path file2 = new Path("dir.1/foo.2"); |
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| 89 | |
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| 90 | kosmosFileSystem.mkdirs(baseDir); |
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| 91 | assertTrue(kosmosFileSystem.isDirectory(baseDir)); |
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| 92 | kosmosFileSystem.setWorkingDirectory(baseDir); |
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| 93 | |
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| 94 | kosmosFileSystem.mkdirs(subDir1); |
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| 95 | |
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| 96 | FSDataOutputStream s1 = kosmosFileSystem.create(file1, true, 4096, (short) 1, (long) 4096, null); |
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| 97 | FSDataOutputStream s2 = kosmosFileSystem.create(file2, true, 4096, (short) 1, (long) 4096, null); |
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| 98 | |
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| 99 | s1.close(); |
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| 100 | s2.close(); |
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| 101 | |
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| 102 | FileStatus[] p = kosmosFileSystem.listStatus(subDir1); |
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| 103 | assertEquals(p.length, 2); |
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| 104 | |
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| 105 | kosmosFileSystem.delete(file1, true); |
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| 106 | p = kosmosFileSystem.listStatus(subDir1); |
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| 107 | assertEquals(p.length, 1); |
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| 108 | |
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| 109 | kosmosFileSystem.delete(file2, true); |
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| 110 | p = kosmosFileSystem.listStatus(subDir1); |
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| 111 | assertEquals(p.length, 0); |
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| 112 | |
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| 113 | kosmosFileSystem.delete(baseDir, true); |
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| 114 | assertFalse(kosmosFileSystem.exists(baseDir)); |
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| 115 | } |
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| 116 | |
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| 117 | // @Test |
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| 118 | // Check file/read write |
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| 119 | public void testFileIO() throws Exception { |
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| 120 | Path subDir1 = new Path("dir.1"); |
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| 121 | Path file1 = new Path("dir.1/foo.1"); |
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| 122 | |
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| 123 | kosmosFileSystem.mkdirs(baseDir); |
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| 124 | assertTrue(kosmosFileSystem.isDirectory(baseDir)); |
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| 125 | kosmosFileSystem.setWorkingDirectory(baseDir); |
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| 126 | |
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| 127 | kosmosFileSystem.mkdirs(subDir1); |
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| 128 | |
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| 129 | FSDataOutputStream s1 = kosmosFileSystem.create(file1, true, 4096, (short) 1, (long) 4096, null); |
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| 130 | |
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| 131 | int bufsz = 4096; |
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| 132 | byte[] data = new byte[bufsz]; |
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| 133 | |
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| 134 | for (int i = 0; i < data.length; i++) |
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| 135 | data[i] = (byte) (i % 16); |
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| 136 | |
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| 137 | // write 4 bytes and read them back; read API should return a byte per call |
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| 138 | s1.write(32); |
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| 139 | s1.write(32); |
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| 140 | s1.write(32); |
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| 141 | s1.write(32); |
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| 142 | // write some data |
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| 143 | s1.write(data, 0, data.length); |
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| 144 | // flush out the changes |
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| 145 | s1.close(); |
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| 146 | |
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| 147 | // Read the stuff back and verify it is correct |
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| 148 | FSDataInputStream s2 = kosmosFileSystem.open(file1, 4096); |
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| 149 | int v; |
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| 150 | |
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| 151 | v = s2.read(); |
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| 152 | assertEquals(v, 32); |
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| 153 | v = s2.read(); |
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| 154 | assertEquals(v, 32); |
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| 155 | v = s2.read(); |
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| 156 | assertEquals(v, 32); |
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| 157 | v = s2.read(); |
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| 158 | assertEquals(v, 32); |
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| 159 | |
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| 160 | assertEquals(s2.available(), data.length); |
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| 161 | |
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| 162 | byte[] buf = new byte[bufsz]; |
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| 163 | s2.read(buf, 0, buf.length); |
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| 164 | for (int i = 0; i < data.length; i++) |
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| 165 | assertEquals(data[i], buf[i]); |
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| 166 | |
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| 167 | assertEquals(s2.available(), 0); |
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| 168 | |
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| 169 | s2.close(); |
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| 170 | |
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| 171 | kosmosFileSystem.delete(file1, true); |
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| 172 | assertFalse(kosmosFileSystem.exists(file1)); |
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| 173 | kosmosFileSystem.delete(subDir1, true); |
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| 174 | assertFalse(kosmosFileSystem.exists(subDir1)); |
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| 175 | kosmosFileSystem.delete(baseDir, true); |
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| 176 | assertFalse(kosmosFileSystem.exists(baseDir)); |
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| 177 | } |
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| 178 | |
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| 179 | } |
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