/*
* Copyright (c) 2010-2012 LinkedIn, Inc
*
* Licensed 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 test.store.api;
import java.io.File;
import java.util.Arrays;
import java.util.Random;
import test.util.FileUtils;
import test.util.RandomBytes;
import junit.framework.TestCase;
import krati.store.ArrayStore;
import krati.store.ArrayStoreIndexIterator;
import krati.store.ArrayStoreIterator;
/**
* AbstractTestArrayStoreIterator
*
* @author jwu
* @since 10/08, 2011
*/
public abstract class AbstractTestArrayStoreIterator extends TestCase {
protected File _homeDir;
protected ArrayStore _store;
protected Random _rand = new Random();
@Override
protected void setUp() {
try {
_homeDir = FileUtils.getTestDir(getClass().getSimpleName());
_store = createStore(_homeDir);
} catch(Exception e) {
e.printStackTrace();
}
}
@Override
protected void tearDown() {
try {
_store.close();
FileUtils.deleteDirectory(_homeDir);
} catch(Exception e) {
e.printStackTrace();
}
}
protected int getRandomIndex() {
return _store.getIndexStart() + _rand.nextInt(_store.capacity());
}
protected abstract ArrayStore createStore(File homeDir) throws Exception;
public void testApiBasics() throws Exception {
int randomIndex = getRandomIndex();
byte[] randomBytes = RandomBytes.getBytes();
for(int i = 0; i < 100; i++) {
byte[] value = RandomBytes.getBytes();
_store.set(getRandomIndex(), value, System.currentTimeMillis());
}
_store.set(randomIndex, randomBytes, System.currentTimeMillis());
_store.sync();
// Test ArrayStoreIndexIterator
ArrayStoreIndexIterator iter1 = new ArrayStoreIndexIterator(_store);
assertEquals(_store.getIndexStart(), iter1.index());
assertTrue(iter1.hasNext());
int cnt1 = 0;
while(iter1.hasNext()) {
iter1.next();
cnt1++;
}
assertEquals(_store.capacity(), cnt1);
for(int i = 0; i < 100; i++) {
iter1.reset(getRandomIndex());
}
try {
iter1.reset(_store.getIndexStart() - 1);
assertTrue(false);
} catch(ArrayIndexOutOfBoundsException e) {}
try {
iter1.reset(_store.getIndexStart() + _store.capacity());
assertTrue(false);
} catch(ArrayIndexOutOfBoundsException e) {}
iter1.reset(randomIndex);
assertTrue(iter1.hasNext());
assertEquals(randomIndex, iter1.index());
assertEquals(randomIndex, iter1.next().intValue());
// Test ArrayStoreIndexIterator
ArrayStoreIterator iter2 = new ArrayStoreIterator(_store);
assertEquals(_store.getIndexStart(), iter2.index());
assertTrue(iter2.hasNext());
int cnt2 = 0;
while(iter2.hasNext()) {
iter2.next();
cnt2++;
}
assertEquals(_store.capacity(), cnt2);
for(int i = 0; i < 100; i++) {
iter2.reset(getRandomIndex());
}
try {
iter2.reset(_store.getIndexStart() - 1);
assertTrue(false);
} catch(ArrayIndexOutOfBoundsException e) {}
try {
iter2.reset(_store.getIndexStart() + _store.capacity());
assertTrue(false);
} catch(ArrayIndexOutOfBoundsException e) {}
iter2.reset(randomIndex);
assertTrue(iter2.hasNext());
assertEquals(randomIndex, iter2.index());
assertTrue(Arrays.equals(randomBytes, iter2.next().getValue()));
}
}