/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.camel.impl;
import java.io.File;
import java.nio.file.Files;
import org.junit.Before;
import org.junit.Test;
import static org.apache.camel.impl.FileStateRepository.fileStateRepository;
import static org.junit.Assert.*;
public class FileStateRepositoryTest {
private final File repositoryStore = new File("target/file-state-repository.dat");
@Before
public void setUp() throws Exception {
// Remove the repository file if needed
Files.deleteIfExists(repositoryStore.toPath());
}
@Test(expected = IllegalArgumentException.class)
public void shouldPreventUsingDelimiterInKey() throws Exception {
// Given a FileStateRepository
FileStateRepository repository = fileStateRepository(repositoryStore);
// When trying to use the key delimiter in a key
repository.setState("=", "value");
// Then an exception is thrown
}
@Test(expected = IllegalArgumentException.class)
public void shouldPreventUsingNewLineInKey() throws Exception {
// Given a FileStateRepository
FileStateRepository repository = createRepository();
// When trying to use new line in a key
repository.setState("\n", "value");
// Then an exception is thrown
}
@Test(expected = IllegalArgumentException.class)
public void shouldPreventUsingNewLineInValue() throws Exception {
// Given a FileStateRepository
FileStateRepository repository = createRepository();
// When trying to use new line in a key
repository.setState("key", "\n");
// Then an exception is thrown
}
@Test
public void shouldSaveState() throws Exception {
// Given an empty FileStateRepository
FileStateRepository repository = createRepository();
// When saving a state
repository.setState("key", "value");
// Then it should be retrieved afterwards
assertEquals("value", repository.getState("key"));
}
@Test
public void shouldUpdateState() throws Exception {
// Given a FileStateRepository with a state in it
FileStateRepository repository = createRepository();
repository.setState("key", "value");
// When updating the state
repository.setState("key", "value2");
// Then the new value should be retrieved afterwards
assertEquals("value2", repository.getState("key"));
}
@Test
public void shouldSynchronizeInFile() throws Exception {
// Given a FileStateRepository with some content
FileStateRepository repository = createRepository();
repository.setState("key1", "value1");
repository.setState("key2", "value2");
repository.setState("key3", "value3");
// When creating a new FileStateRepository with same file
FileStateRepository newRepository = createRepository();
// Then the new one should have the same content
assertEquals("value1", newRepository.getState("key1"));
assertEquals("value2", newRepository.getState("key2"));
assertEquals("value3", newRepository.getState("key3"));
}
@Test
public void shouldPreventRepositoryFileFromGrowingInfinitely() throws Exception {
// Given a FileStateRepository with a maximum size of 100 bytes
FileStateRepository repository = createRepository();
repository.setMaxFileStoreSize(100);
// And content just to this limit (10x10 bytes)
for (int i = 0; i < 10; i++) {
repository.setState("key", "xxxxx".replace('x', (char) ('0' + i)));
}
long previousSize = repositoryStore.length();
// When updating the state
repository.setState("key", "value");
// Then it should be truncated
assertTrue(repositoryStore.length() < previousSize);
}
private FileStateRepository createRepository() throws Exception {
FileStateRepository repository = fileStateRepository(repositoryStore);
repository.start();
return repository;
}
}