blob: 004066be07133995b8b2cb7a9abe54112ca7a31e [file] [log] [blame]
/*
* 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.pig;
import org.apache.hadoop.mapreduce.Job;
import org.junit.Test;
import java.io.IOException;
import java.util.NoSuchElementException;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* Tests that the StoreFuncMetadataWrapper properly wraps objects that implement both
* StoreFuncInterface and StoreMetadata
*/
public class TestStoreFuncMetadataWrapper {
// Asserts that each call to a Wrapper invokes the correct method on the Wrappee.
@Test
public void testSucess() throws IOException {
DummyStoreMetadata storeFunc = new DummyStoreMetadata();
MockWrapper wrapper = new MockWrapper(storeFunc);
wrapper.storeSchema(null, null, null);
assertEquals("storeSchema", storeFunc.getLastMethodCalled());
wrapper.storeStatistics(null, null, null);
assertEquals("storeStatistics", storeFunc.getLastMethodCalled());
wrapper.relToAbsPathForStoreLocation(null, null);
assertEquals("relToAbsPathForStoreLocation", storeFunc.getLastMethodCalled());
wrapper.getOutputFormat();
assertEquals("getOutputFormat", storeFunc.getLastMethodCalled());
wrapper.setStoreLocation(null, null);
assertEquals("setStoreLocation", storeFunc.getLastMethodCalled());
wrapper.checkSchema(null);
assertEquals("checkSchema", storeFunc.getLastMethodCalled());
wrapper.prepareToWrite(null);
assertEquals("prepareToWrite", storeFunc.getLastMethodCalled());
wrapper.putNext(null);
assertEquals("putNext", storeFunc.getLastMethodCalled());
wrapper.setStoreFuncUDFContextSignature(null);
assertEquals("setStoreFuncUDFContextSignature", storeFunc.getLastMethodCalled());
wrapper.cleanupOnSuccess(null, null);
assertEquals("cleanupOnSuccess", storeFunc.getLastMethodCalled());
wrapper.cleanupOnFailure(null, null);
assertEquals("cleanupOnFailure", storeFunc.getLastMethodCalled());
NoSuchElementException e = null;
try {
storeFunc.getLastMethodCalled();
} catch (NoSuchElementException ex) {
e = ex;
}
assertNotNull("The wrapped class had more method invokations than it should have", e);
}
// Asserts that each call to an improperly initialized Wrapper fails.
@Test
public void testError() throws IOException {
MockWrapper wrapper = new MockWrapper(); // <-- !! storeFunc not set !!
IllegalArgumentException e = null;
try {
wrapper.storeSchema(null, null, null);
} catch (IllegalArgumentException ex) {
e = ex;
}
assertNotNull("A useful exception should have been thrown when a method is called on an "
+ "improperly initialized StoreFuncMetadataWrapper", e);
assertTrue("The method name that caused the problem should have been mentioned in the "
+ "exception, since the stack trace gets swallowed when this occurs",
e.getMessage().contains("storeSchema"));
}
private static class MockWrapper extends StoreFuncMetadataWrapper {
private MockWrapper() { }
private MockWrapper(StoreMetadata storeMetadata) {
setStoreFunc(storeMetadata);
}
}
private static class DummyStoreMetadata extends TestStoreFuncWrapper.DummyStoreFunc
implements StoreMetadata, StoreFuncInterface {
@Override
public void storeStatistics(ResourceStatistics stats, String location, Job job)
throws IOException {
setLastMethodCalled();
}
@Override
public void storeSchema(ResourceSchema schema, String location, Job job)
throws IOException {
setLastMethodCalled();
}
}
}