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