/*
* Copyright 2013 Google 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 com.google.appengine.tools.mapreduce.outputs;
import com.google.appengine.api.datastore.DatastoreService;
import com.google.appengine.api.datastore.DatastoreServiceFactory;
import com.google.appengine.api.datastore.Entity;
import com.google.appengine.api.datastore.EntityNotFoundException;
import com.google.appengine.tools.development.testing.LocalDatastoreServiceTestConfig;
import com.google.appengine.tools.development.testing.LocalServiceTestHelper;
import com.google.appengine.tools.mapreduce.OutputWriter;
import com.google.appengine.tools.mapreduce.impl.util.SerializationUtil;
import junit.framework.TestCase;
import java.io.IOException;
import java.util.List;
/**
* Tests for {@link DatastoreOutput}.
*/
public class DatastoreOutputTest extends TestCase {
private final LocalServiceTestHelper helper =
new LocalServiceTestHelper(new LocalDatastoreServiceTestConfig());
private Entity entity1;
private Entity entity2;
private Entity entity3;
@Override
public void setUp() throws Exception {
super.setUp();
helper.setUp();
entity1 = new Entity("kind1", "v1");
entity2 = new Entity("kind1", "v2");
entity3 = new Entity("kind1", "v3");
}
@Override
public void tearDown() throws Exception {
helper.tearDown();
super.tearDown();
}
public void testCreateWriters() {
DatastoreOutput output = new DatastoreOutput();
List<? extends OutputWriter<Entity>> writers = output.createWriters(3);
assertEquals(3, writers.size());
}
public void testFinish() {
DatastoreOutput output = new DatastoreOutput();
List<? extends OutputWriter<Entity>> writers = output.createWriters(1);
assertEquals(1, writers.size());
assertNull(output.finish(writers));
}
public void testDatastoreOutputWriter()
throws IOException, EntityNotFoundException {
DatastoreOutput output = new DatastoreOutput();
OutputWriter<Entity> writer = output.createWriters(1).get(0);
writer.beginShard();
writer.beginSlice();
writer.write(entity1);
writer = SerializationUtil.clone(writer);
writer.beginSlice();
writer.write(entity2);
writer.write(entity3);
writer.endSlice();
writer.endShard();
DatastoreService ds = DatastoreServiceFactory.getDatastoreService();
try {
ds.get(entity1.getKey());
fail("Should ot be able to find entity1");
} catch (EntityNotFoundException ignore) {
// expected
}
assertEquals(entity2, ds.get(entity2.getKey()));
assertEquals(entity3, ds.get(entity3.getKey()));
}
}