| /* |
| * 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 junit.framework.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(); |
| } |
| } |
| } |