/**
* 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.hadoop.hive.serde2;
import junit.framework.TestCase;
import org.apache.hadoop.hive.metastore.MetaStoreUtils;
import org.apache.hadoop.hive.metastore.api.FieldSchema;
import org.apache.hadoop.hive.metastore.api.MetaException;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.StructField;
import org.apache.hadoop.hive.serde2.objectinspector.StructObjectInspector;
import java.util.ArrayList;
import java.util.List;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
public class TestSerdeWithFieldComments extends TestCase {
private StructField mockedStructField(String name, String oiTypeName,
String comment) {
StructField m = mock(StructField.class);
when(m.getFieldName()).thenReturn(name);
ObjectInspector oi = mock(ObjectInspector.class);
when(oi.getTypeName()).thenReturn(oiTypeName);
when(m.getFieldObjectInspector()).thenReturn(oi);
when(m.getFieldComment()).thenReturn(comment);
return m;
}
public void testFieldComments() throws MetaException, SerDeException {
StructObjectInspector mockSOI = mock(StructObjectInspector.class);
when(mockSOI.getCategory()).thenReturn(ObjectInspector.Category.STRUCT);
List fieldRefs = new ArrayList<StructField>();
// Add field with a comment...
fieldRefs.add(mockedStructField("first", "type name 1", "this is a comment"));
// ... and one without
fieldRefs.add(mockedStructField("second", "type name 2", null));
when(mockSOI.getAllStructFieldRefs()).thenReturn(fieldRefs);
Deserializer mockDe = mock(Deserializer.class);
when(mockDe.getObjectInspector()).thenReturn(mockSOI);
List<FieldSchema> result =
MetaStoreUtils.getFieldsFromDeserializer("testTable", mockDe);
assertEquals(2, result.size());
assertEquals("first", result.get(0).getName());
assertEquals("this is a comment", result.get(0).getComment());
assertEquals("second", result.get(1).getName());
assertEquals("from deserializer", result.get(1).getComment());
}
}