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, software |
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13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 | * See the License for the specific language governing permissions and |
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16 | * limitations under the License. |
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17 | */ |
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18 | package org.apache.hadoop.hdfs; |
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19 | |
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20 | import junit.framework.TestCase; |
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21 | import java.io.*; |
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22 | import org.apache.hadoop.conf.Configuration; |
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23 | import org.apache.hadoop.fs.FileSystem; |
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24 | import org.apache.hadoop.fs.Path; |
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25 | |
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26 | |
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27 | /** |
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28 | * This class tests that the DFS command mkdirs cannot create subdirectories |
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29 | * from a file when passed an illegal path. HADOOP-281. |
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30 | */ |
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31 | public class TestDFSMkdirs extends TestCase { |
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32 | |
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33 | private void writeFile(FileSystem fileSys, Path name) throws IOException { |
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34 | DataOutputStream stm = fileSys.create(name); |
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35 | stm.writeBytes("wchien"); |
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36 | stm.close(); |
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37 | } |
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38 | |
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39 | /** |
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40 | * Tests mkdirs can create a directory that does not exist and will |
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41 | * not create a subdirectory off a file. |
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42 | */ |
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43 | public void testDFSMkdirs() throws IOException { |
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44 | Configuration conf = new Configuration(); |
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45 | MiniDFSCluster cluster = new MiniDFSCluster(conf, 2, true, null); |
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46 | FileSystem fileSys = cluster.getFileSystem(); |
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47 | try { |
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48 | // First create a new directory with mkdirs |
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49 | Path myPath = new Path("/test/mkdirs"); |
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50 | assertTrue(fileSys.mkdirs(myPath)); |
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51 | assertTrue(fileSys.exists(myPath)); |
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52 | assertTrue(fileSys.mkdirs(myPath)); |
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53 | |
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54 | // Second, create a file in that directory. |
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55 | Path myFile = new Path("/test/mkdirs/myFile"); |
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56 | writeFile(fileSys, myFile); |
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57 | |
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58 | // Third, use mkdir to create a subdirectory off of that file, |
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59 | // and check that it fails. |
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60 | Path myIllegalPath = new Path("/test/mkdirs/myFile/subdir"); |
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61 | Boolean exist = true; |
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62 | try { |
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63 | fileSys.mkdirs(myIllegalPath); |
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64 | } catch (IOException e) { |
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65 | exist = false; |
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66 | } |
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67 | assertFalse(exist); |
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68 | assertFalse(fileSys.exists(myIllegalPath)); |
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69 | fileSys.delete(myFile, true); |
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70 | |
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71 | } finally { |
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72 | fileSys.close(); |
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73 | cluster.shutdown(); |
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74 | } |
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75 | } |
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76 | } |
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