org.apache.solr.client.solrj.io.stream.eval.SubtractEvaluatorTest.java Source code

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for subitional 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.solr.client.solrj.io.stream.eval;

import java.io.IOException;
import java.util.Map;

import junit.framework.Assert;

import org.apache.commons.collections.map.HashedMap;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.solr.client.solrj.io.Tuple;
import org.apache.solr.client.solrj.io.eval.StreamEvaluator;
import org.apache.solr.client.solrj.io.eval.SubtractEvaluator;
import org.apache.solr.client.solrj.io.stream.expr.StreamFactory;
import org.junit.Test;

public class SubtractEvaluatorTest extends LuceneTestCase {

    StreamFactory factory;
    Map<String, Object> values;

    public SubtractEvaluatorTest() {
        super();

        factory = new StreamFactory().withFunctionName("sub", SubtractEvaluator.class);
        values = new HashedMap();
    }

    @Test
    public void subTwoFieldsWithValues() throws Exception {
        StreamEvaluator evaluator = factory.constructEvaluator("sub(a,b)");
        Object result;

        values.clear();
        values.put("a", 1);
        values.put("b", 2);
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertTrue(result instanceof Long);
        Assert.assertEquals(-1L, result);

        values.clear();
        values.put("a", 1.1);
        values.put("b", 2);
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertTrue(result instanceof Double);
        Assert.assertEquals(-.9D, result);

        values.clear();
        values.put("a", 1.1);
        values.put("b", 2.1);
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertTrue(result instanceof Long);
        Assert.assertEquals(-1L, result);
    }

    @Test(expected = IOException.class)
    public void subOneField() throws Exception {
        factory.constructEvaluator("sub(a)");
    }

    @Test
    public void subTwoFieldWithNulls() throws Exception {
        StreamEvaluator evaluator = factory.constructEvaluator("sub(a,b)");
        Object result;

        values.clear();
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertNull(result);
    }

    @Test
    public void subTwoFieldsWithNull() throws Exception {
        StreamEvaluator evaluator = factory.constructEvaluator("sub(a,b)");
        Object result;

        values.clear();
        values.put("a", 1);
        values.put("b", null);
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertNull(result);

        values.clear();
        values.put("a", 1.1);
        values.put("b", null);
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertNull(result);

        values.clear();
        values.put("a", 1.1);
        values.put("b", null);
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertNull(result);
    }

    @Test
    public void subTwoFieldsWithMissingField() throws Exception {
        StreamEvaluator evaluator = factory.constructEvaluator("sub(a,b)");
        Object result;

        values.clear();
        values.put("a", 1);
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertNull(result);

        values.clear();
        values.put("a", 1.1);
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertNull(result);

        values.clear();
        values.put("a", 1.1);
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertNull(result);
    }

    @Test
    public void subManyFieldsWithValues() throws Exception {
        StreamEvaluator evaluator = factory.constructEvaluator("sub(a,b,c,d)");
        Object result;

        values.clear();
        values.put("a", 1);
        values.put("b", 2);
        values.put("c", 3);
        values.put("d", 4);
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertTrue(result instanceof Long);
        Assert.assertEquals(-8L, result);

        values.clear();
        values.put("a", 1.1);
        values.put("b", 2);
        values.put("c", 3);
        values.put("d", 4);
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertTrue(result instanceof Double);
        Assert.assertEquals(-7.9D, result);

        values.clear();
        values.put("a", 10.1);
        values.put("b", 2.1);
        values.put("c", 3.1);
        values.put("d", 4.1);
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertTrue(result instanceof Double);
        Assert.assertEquals(.8D, result);
    }

    @Test
    public void subManyFieldsWithSubsubs() throws Exception {
        StreamEvaluator evaluator = factory.constructEvaluator("sub(a,b,sub(c,d))");
        Object result;

        values.clear();
        values.put("a", 1);
        values.put("b", 2);
        values.put("c", 3);
        values.put("d", 4);
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertTrue(result instanceof Long);
        Assert.assertEquals(0L, result);

        values.clear();
        values.put("a", 123456789123456789L);
        values.put("b", 123456789123456789L);
        values.put("c", 123456789123456789L);
        values.put("d", 123456789123456789L);
        result = evaluator.evaluate(new Tuple(values));
        Assert.assertTrue(result instanceof Long);
        Assert.assertEquals(0L, result);
    }
}