blob: 171c3a7e6bfd9b8c8cd87fe5aec475b34ad052bd [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.junit.Test;
import java.io.IOException;
import static org.junit.Assert.assertEquals;
public class TestPrimitiveEvalFunc {
private static class StringStringFunc extends PrimitiveEvalFunc<String, String> {
@Override
public String exec(String input) throws IOException {
return "foo";
}
};
private static class StringIntegerFunc extends PrimitiveEvalFunc<String, Integer> {
@Override
public Integer exec(String input) throws IOException {
return 1;
}
};
private static class IntegerFloatFunc extends PrimitiveEvalFunc<Integer, Float> {
@Override
public Float exec(Integer i) throws IOException {
return 1.0f;
}
};
@Test
public final void testGetOutputTypes() throws IOException {
StringStringFunc udf1 = new StringStringFunc();
StringIntegerFunc udf2 = new StringIntegerFunc();
IntegerFloatFunc udf3 = new IntegerFloatFunc();
assertEquals(String.class, udf1.getOutputTypeClass());
assertEquals(String.class, udf1.getInputTypeClass());
assertEquals(Integer.class, udf2.getOutputTypeClass());
assertEquals(String.class, udf2.getInputTypeClass());
assertEquals(Float.class, udf3.getOutputTypeClass());
assertEquals(Integer.class, udf3.getInputTypeClass());
}
}