TestReverse.java example

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
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 * 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,
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package org.apache.pig.piggybank.test.evaluation.string;

import static org.junit.Assert.assertEquals;

import java.io.IOException;

import org.apache.pig.EvalFunc;
import org.apache.pig.data.Tuple;
import org.apache.pig.data.TupleFactory;
import org.apache.pig.piggybank.evaluation.string.Reverse;
import org.junit.Test;

public class TestReverse {
    private static final EvalFunc<String> rev_ = new Reverse();
    private static Tuple testTuple_ = TupleFactory.getInstance().newTuple(1);
    
    @Test
    public void testLength() throws IOException {
        testTuple_.set(0,"fos");
        assertEquals("regular length should match", "sof", rev_.exec(testTuple_));
    }
}