| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for multitional 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.HashMap; |
| import java.util.Map; |
| |
| import org.apache.solr.SolrTestCase; |
| import org.apache.solr.client.solrj.io.Tuple; |
| import org.apache.solr.client.solrj.io.eval.DivideEvaluator; |
| import org.apache.solr.client.solrj.io.eval.StreamEvaluator; |
| import org.apache.solr.client.solrj.io.stream.expr.StreamFactory; |
| import org.junit.Test; |
| |
| import junit.framework.Assert; |
| |
| public class DivideEvaluatorTest extends SolrTestCase { |
| |
| StreamFactory factory; |
| Map<String, Object> values; |
| |
| public DivideEvaluatorTest() { |
| super(); |
| |
| factory = new StreamFactory() |
| .withFunctionName("div", DivideEvaluator.class); |
| values = new HashMap<String,Object>(); |
| } |
| |
| @Test |
| public void divTwoFieldsWithValues() throws Exception{ |
| StreamEvaluator evaluator = factory.constructEvaluator("div(a,b)"); |
| Object result; |
| |
| values.clear(); |
| values.put("a", 1); |
| values.put("b", 2); |
| result = evaluator.evaluate(new Tuple(values)); |
| Assert.assertTrue(result instanceof Double); |
| Assert.assertEquals(1.0/2, 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(1.1/2, result); |
| |
| values.clear(); |
| values.put("a", 1.1); |
| values.put("b", 2.1); |
| result = evaluator.evaluate(new Tuple(values)); |
| Assert.assertTrue(result instanceof Double); |
| Assert.assertEquals(1.1/2.1, result); |
| } |
| |
| @Test(expected = IOException.class) |
| public void divOneField() throws Exception{ |
| factory.constructEvaluator("div(a)"); |
| } |
| |
| @Test(expected = IOException.class) |
| public void divTwoFieldWithNulls() throws Exception{ |
| StreamEvaluator evaluator = factory.constructEvaluator("div(a,b)"); |
| |
| values.clear(); |
| evaluator.evaluate(new Tuple(values)); |
| } |
| |
| @Test(expected = IOException.class) |
| public void divTwoFieldsWithNullDenominator() throws Exception{ |
| StreamEvaluator evaluator = factory.constructEvaluator("div(a,b)"); |
| |
| values.clear(); |
| values.put("a", 1); |
| evaluator.evaluate(new Tuple(values)); |
| } |
| |
| @Test(expected = IOException.class) |
| public void divTwoFieldsWithNullNumerator() throws Exception{ |
| StreamEvaluator evaluator = factory.constructEvaluator("div(a,b)"); |
| |
| values.clear(); |
| values.put("b", 1); |
| evaluator.evaluate(new Tuple(values)); |
| } |
| |
| |
| @Test(expected = IOException.class) |
| public void divTwoFieldsWithMissingDenominator() throws Exception{ |
| StreamEvaluator evaluator = factory.constructEvaluator("div(a,b)"); |
| |
| values.clear(); |
| values.put("a", 1); |
| evaluator.evaluate(new Tuple(values)); |
| } |
| |
| @Test(expected = IOException.class) |
| public void divTwoFieldsWithMissingNumerator() throws Exception{ |
| StreamEvaluator evaluator = factory.constructEvaluator("div(a,b)"); |
| |
| values.clear(); |
| values.put("b", 1); |
| evaluator.evaluate(new Tuple(values)); |
| } |
| |
| |
| @Test(expected = IOException.class) |
| public void divManyFieldsWithValues() throws Exception{ |
| factory.constructEvaluator("div(a,b,c,d)"); |
| } |
| |
| @Test |
| public void divManyFieldsWithSubdivs() throws Exception{ |
| StreamEvaluator evaluator = factory.constructEvaluator("div(a,div(b,c))"); |
| Object result; |
| |
| values.clear(); |
| values.put("a", 1); |
| values.put("b", 2); |
| values.put("c", 3); |
| result = evaluator.evaluate(new Tuple(values)); |
| Assert.assertTrue(result instanceof Double); |
| Assert.assertEquals((1.0 / (2.0 / 3)), result); |
| } |
| |
| @Test(expected = IOException.class) |
| public void divByZero() throws Exception{ |
| StreamEvaluator evaluator = factory.constructEvaluator("div(a,b)"); |
| |
| values.clear(); |
| values.put("a", 1); |
| values.put("b", 0); |
| evaluator.evaluate(new Tuple(values)); |
| } |
| |
| @Test |
| public void divZeroByValue() throws Exception{ |
| StreamEvaluator evaluator = factory.constructEvaluator("div(a,b)"); |
| Object result; |
| |
| values.clear(); |
| values.put("a", 0); |
| values.put("b", 2); |
| result = evaluator.evaluate(new Tuple(values)); |
| Assert.assertEquals(0D, result); |
| } |
| } |