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 junit.framework.Assert.assertFalse;
  28 import static junit.framework.Assert.assertTrue;
  29 import static org.hamcrest.CoreMatchers.is;
  30 import static org.junit.Assert.assertEquals;
  31 import static org.junit.Assert.assertThat;
  32
  33 public class FileStorageAdapterTest {
  34
  35     private static int i;
  36     private File file;
  37
  38     @Before
  39     public void setUp() throws Exception {
  40         file = Files.createTempFile("testFilePersist", ".txt").toFile();
  41         if (!file.exists())
  42             return;
  43         com.google.common.io.Files.write("", file, Charsets.UTF_8);
  44         i = 1;
  45     }
  46
  47     @Test
  48     public void testFileAdapter() throws Exception {
  49         FileStorageAdapter storage = new FileStorageAdapter();
  50         storage.setFileStorage(file);
  51         storage.setNumberOfBackups(Integer.MAX_VALUE);
  52         final Persister.ConfigSnapshotHolder holder = new Persister.ConfigSnapshotHolder() {
  53             @Override
  54             public String getConfigSnapshot() {
  55                 return createConfig();
  56             }
  57
  58             @Override
  59             public Set<String> getCapabilities() {
  60                 return createCaps();
  61             }
  62         };
  63         storage.persistConfig(holder);
  64
  65         storage.persistConfig(holder);
  66
  67         Collection<String> readLines = Collections2.filter(com.google.common.io.Files.readLines(file, Charsets.UTF_8),
  68                 new Predicate<String>() {
  69
  70                     @Override
  71                     public boolean apply(String input) {
  72                         if (input.equals(""))
  73                             return false;
  74                         return true;
  75                     }
  76                 });
  77         assertEquals(14, readLines.size());
  78
  79         Optional<Persister.ConfigSnapshotHolder> lastConf = storage.loadLastConfig();
  80         assertTrue(lastConf.isPresent());
  81         assertEquals("<config>2</config>",
  82                 lastConf.get().getConfigSnapshot().replaceAll("\\s", ""));
  83         assertEquals(createCaps(), lastConf.get().getCapabilities());
  84     }
  85
  86     private Set<String> createCaps() {
  87         Set<String> caps = Sets.newHashSet();
  88
  89         caps.add("cap1");
  90         caps.add("cap2");
  91         caps.add("capaaaa as dasfasdf s2");
  92         return caps;
  93     }
  94
  95     @Test
  96     public void testFileAdapterOneBackup() throws Exception {
  97         FileStorageAdapter storage = new FileStorageAdapter();
  98         storage.setFileStorage(file);
  99         storage.setNumberOfBackups(1);
 100         final Persister.ConfigSnapshotHolder holder = new Persister.ConfigSnapshotHolder() {
 101             @Override
 102             public String getConfigSnapshot() {
 103                 return createConfig();
 104             }
 105
 106             @Override
 107             public Set<String> getCapabilities() {
 108                 return createCaps();
 109             }
 110         };
 111         storage.persistConfig(holder);
 112
 113         storage.persistConfig(holder);
 114
 115         Collection<String> readLines = Collections2.filter(com.google.common.io.Files.readLines(file, Charsets.UTF_8),
 116                 new Predicate<String>() {
 117
 118                     @Override
 119                     public boolean apply(String input) {
 120                         if (input.equals(""))
 121                             return false;
 122                         return true;
 123                     }
 124                 });
 125         assertEquals(7, readLines.size());
 126
 127         Optional<Persister.ConfigSnapshotHolder> lastConf = storage.loadLastConfig();
 128         assertTrue(lastConf.isPresent());
 129         assertEquals("<config>2</config>",
 130                 lastConf.get().getConfigSnapshot().replaceAll("\\s", ""));
 131     }
 132
 133     @Test
 134     public void testFileAdapterOnlyTwoBackups() throws Exception {
 135         FileStorageAdapter storage = new FileStorageAdapter();
 136         storage.setFileStorage(file);
 137         storage.setNumberOfBackups(2);
 138         final Persister.ConfigSnapshotHolder holder = new Persister.ConfigSnapshotHolder() {
 139             @Override
 140             public String getConfigSnapshot() {
 141                 return createConfig();
 142             }
 143
 144             @Override
 145             public Set<String> getCapabilities() {
 146                 return createCaps();
 147             }
 148         };
 149         storage.persistConfig(holder);
 150
 151         storage.persistConfig(holder);
 152         storage.persistConfig(holder);
 153
 154         Collection<String> readLines = Collections2.filter(com.google.common.io.Files.readLines(file, Charsets.UTF_8),
 155                 new Predicate<String>() {
 156
 157                     @Override
 158                     public boolean apply(String input) {
 159                         if (input.equals(""))
 160                             return false;
 161                         return true;
 162                     }
 163                 });
 164
 165         assertEquals(14, readLines.size());
 166
 167         Optional<Persister.ConfigSnapshotHolder> lastConf = storage.loadLastConfig();
 168         assertTrue(lastConf.isPresent());
 169         assertEquals("<config>3</config>",
 170                lastConf.get().getConfigSnapshot().replaceAll("\\s", ""));
 171         assertFalse(readLines.contains(holder.getConfigSnapshot()));
 172     }
 173
 174     @Test
 175     public void testNoLastConfig() throws Exception {
 176         File file = Files.createTempFile("testFilePersist", ".txt").toFile();
 177         if (!file.exists())
 178             return;
 179         FileStorageAdapter storage = new FileStorageAdapter();
 180         storage.setFileStorage(file);
 181
 182         Optional<Persister.ConfigSnapshotHolder> elementOptional = storage.loadLastConfig();
 183         assertThat(elementOptional.isPresent(), is(false));
 184     }
 185
 186     @Test(expected = NullPointerException.class)
 187     public void testNoProperties() throws Exception {
 188         FileStorageAdapter storage = new FileStorageAdapter();
 189         storage.loadLastConfig();
 190     }
 191
 192     @Test(expected = NullPointerException.class)
 193     public void testNoProperties2() throws Exception {
 194         FileStorageAdapter storage = new FileStorageAdapter();
 195         storage.persistConfig(new Persister.ConfigSnapshotHolder() {
 196             @Override
 197             public String getConfigSnapshot() {
 198                 return Mockito.mock(String.class);
 199             }
 200
 201             @Override
 202             public Set<String> getCapabilities() {
 203                 return Collections.<String> emptySet();
 204             }
 205         } );
 206     }
 207
 208     static String createConfig() {
 209         return "<config>" + i++ + "</config>";
 210     }
 211
 212 }