opendaylight/config/config-persister-file-adapter/src/test/java/org/opendaylight/controller/config/persist/storage/file/FileStorageAdapterTest.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.config.persist.storage.file;
  10
  11 import com.google.common.base.Charsets;
  12 import com.google.common.base.Optional;
  13 import com.google.common.base.Predicate;
  14 import com.google.common.collect.Collections2;
  15 import org.junit.Before;
  16 import org.junit.Test;
  17 import org.mockito.Mockito;
  18 import org.opendaylight.controller.config.persist.api.ConfigSnapshotHolder;
  19
  20 import java.io.File;
  21 import java.nio.file.Files;
  22 import java.util.Collection;
  23 import java.util.SortedSet;
  24 import java.util.TreeSet;
  25
  26 import static junit.framework.Assert.assertFalse;
  27 import static junit.framework.Assert.assertTrue;
  28 import static org.hamcrest.CoreMatchers.is;
  29 import static org.junit.Assert.assertEquals;
  30 import static org.junit.Assert.assertThat;
  31
  32 public class FileStorageAdapterTest {
  33
  34     private static int i;
  35     private File file;
  36
  37     @Before
  38     public void setUp() throws Exception {
  39         file = Files.createTempFile("testFilePersist", ".txt").toFile();
  40         if (!file.exists())
  41             return;
  42         com.google.common.io.Files.write("", file, Charsets.UTF_8);
  43         i = 1;
  44     }
  45
  46     @Test
  47     public void testFileAdapter() throws Exception {
  48         FileStorageAdapter storage = new FileStorageAdapter();
  49         storage.setFileStorage(file);
  50         storage.setNumberOfBackups(Integer.MAX_VALUE);
  51         final ConfigSnapshotHolder holder = new ConfigSnapshotHolder() {
  52             @Override
  53             public String getConfigSnapshot() {
  54                 return createConfig();
  55             }
  56
  57             @Override
  58             public SortedSet<String> getCapabilities() {
  59                 return createCaps();
  60             }
  61         };
  62         storage.persistConfig(holder);
  63
  64         storage.persistConfig(holder);
  65
  66         Collection<String> readLines = Collections2.filter(com.google.common.io.Files.readLines(file, Charsets.UTF_8),
  67                 new Predicate<String>() {
  68
  69                     @Override
  70                     public boolean apply(String input) {
  71                         if (input.equals(""))
  72                             return false;
  73                         return true;
  74                     }
  75                 });
  76         assertEquals(14, readLines.size());
  77
  78         Optional<ConfigSnapshotHolder> lastConf = storage.loadLastConfig();
  79         assertTrue(lastConf.isPresent());
  80         assertEquals("<config>2</config>",
  81                 lastConf.get().getConfigSnapshot().replaceAll("\\s", ""));
  82         assertEquals(createCaps(), lastConf.get().getCapabilities());
  83     }
  84
  85     private SortedSet<String> createCaps() {
  86         SortedSet<String> caps = new TreeSet<>();
  87
  88         caps.add("cap1");
  89         caps.add("cap2");
  90         caps.add("capaaaa as dasfasdf s2");
  91         return caps;
  92     }
  93
  94     @Test
  95     public void testFileAdapterOneBackup() throws Exception {
  96         FileStorageAdapter storage = new FileStorageAdapter();
  97         storage.setFileStorage(file);
  98         storage.setNumberOfBackups(1);
  99         final ConfigSnapshotHolder holder = new ConfigSnapshotHolder() {
 100             @Override
 101             public String getConfigSnapshot() {
 102                 return createConfig();
 103             }
 104
 105             @Override
 106             public SortedSet<String> getCapabilities() {
 107                 return createCaps();
 108             }
 109         };
 110         storage.persistConfig(holder);
 111
 112         storage.persistConfig(holder);
 113
 114         Collection<String> readLines = Collections2.filter(com.google.common.io.Files.readLines(file, Charsets.UTF_8),
 115                 new Predicate<String>() {
 116
 117                     @Override
 118                     public boolean apply(String input) {
 119                         if (input.equals(""))
 120                             return false;
 121                         return true;
 122                     }
 123                 });
 124         assertEquals(7, readLines.size());
 125
 126         Optional<ConfigSnapshotHolder> lastConf = storage.loadLastConfig();
 127         assertTrue(lastConf.isPresent());
 128         assertEquals("<config>2</config>",
 129                 lastConf.get().getConfigSnapshot().replaceAll("\\s", ""));
 130     }
 131
 132     @Test
 133     public void testFileAdapterOnlyTwoBackups() throws Exception {
 134         FileStorageAdapter storage = new FileStorageAdapter();
 135         storage.setFileStorage(file);
 136         storage.setNumberOfBackups(2);
 137         final ConfigSnapshotHolder holder = new ConfigSnapshotHolder() {
 138             @Override
 139             public String getConfigSnapshot() {
 140                 return createConfig();
 141             }
 142
 143             @Override
 144             public SortedSet<String> getCapabilities() {
 145                 return createCaps();
 146             }
 147         };
 148         storage.persistConfig(holder);
 149
 150         storage.persistConfig(holder);
 151         storage.persistConfig(holder);
 152
 153         Collection<String> readLines = Collections2.filter(com.google.common.io.Files.readLines(file, Charsets.UTF_8),
 154                 new Predicate<String>() {
 155
 156                     @Override
 157                     public boolean apply(String input) {
 158                         if (input.equals(""))
 159                             return false;
 160                         return true;
 161                     }
 162                 });
 163
 164         assertEquals(14, readLines.size());
 165
 166         Optional<ConfigSnapshotHolder> lastConf = storage.loadLastConfig();
 167         assertTrue(lastConf.isPresent());
 168         assertEquals("<config>3</config>",
 169                lastConf.get().getConfigSnapshot().replaceAll("\\s", ""));
 170         assertFalse(readLines.contains(holder.getConfigSnapshot()));
 171     }
 172
 173     @Test
 174     public void testNoLastConfig() throws Exception {
 175         File file = Files.createTempFile("testFilePersist", ".txt").toFile();
 176         if (!file.exists())
 177             return;
 178         FileStorageAdapter storage = new FileStorageAdapter();
 179         storage.setFileStorage(file);
 180
 181         Optional<ConfigSnapshotHolder> elementOptional = storage.loadLastConfig();
 182         assertThat(elementOptional.isPresent(), is(false));
 183     }
 184
 185     @Test(expected = NullPointerException.class)
 186     public void testNoProperties() throws Exception {
 187         FileStorageAdapter storage = new FileStorageAdapter();
 188         storage.loadLastConfig();
 189     }
 190
 191     @Test(expected = NullPointerException.class)
 192     public void testNoProperties2() throws Exception {
 193         FileStorageAdapter storage = new FileStorageAdapter();
 194         storage.persistConfig(new ConfigSnapshotHolder() {
 195             @Override
 196             public String getConfigSnapshot() {
 197                 return Mockito.mock(String.class);
 198             }
 199
 200             @Override
 201             public SortedSet<String> getCapabilities() {
 202                 return new TreeSet<>();
 203             }
 204         } );
 205     }
 206
 207     static String createConfig() {
 208         return "<config>" + i++ + "</config>";
 209     }
 210
 211 }