| /* |
| * 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.lucene.expressions.js; |
| |
| import org.apache.lucene.expressions.Expression; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| public class TestJavascriptFunction extends LuceneTestCase { |
| private static double DELTA = 0.0000001; |
| |
| private void assertEvaluatesTo(String expression, double expected) throws Exception { |
| Expression evaluator = JavascriptCompiler.compile(expression); |
| double actual = evaluator.evaluate(0, null); |
| assertEquals(expected, actual, DELTA); |
| } |
| |
| public void testAbsMethod() throws Exception { |
| assertEvaluatesTo("abs(0)", 0); |
| assertEvaluatesTo("abs(119)", 119); |
| assertEvaluatesTo("abs(119)", 119); |
| assertEvaluatesTo("abs(1)", 1); |
| assertEvaluatesTo("abs(-1)", 1); |
| } |
| |
| public void testAcosMethod() throws Exception { |
| assertEvaluatesTo("acos(-1)", Math.PI); |
| assertEvaluatesTo("acos(-0.8660254)", Math.PI*5/6); |
| assertEvaluatesTo("acos(-0.7071068)", Math.PI*3/4); |
| assertEvaluatesTo("acos(-0.5)", Math.PI*2/3); |
| assertEvaluatesTo("acos(0)", Math.PI/2); |
| assertEvaluatesTo("acos(0.5)", Math.PI/3); |
| assertEvaluatesTo("acos(0.7071068)", Math.PI/4); |
| assertEvaluatesTo("acos(0.8660254)", Math.PI/6); |
| assertEvaluatesTo("acos(1)", 0); |
| } |
| |
| public void testAcoshMethod() throws Exception { |
| assertEvaluatesTo("acosh(1)", 0); |
| assertEvaluatesTo("acosh(2.5)", 1.5667992369724109); |
| assertEvaluatesTo("acosh(1234567.89)", 14.719378760739708); |
| } |
| |
| public void testAsinMethod() throws Exception { |
| assertEvaluatesTo("asin(-1)", -Math.PI/2); |
| assertEvaluatesTo("asin(-0.8660254)", -Math.PI/3); |
| assertEvaluatesTo("asin(-0.7071068)", -Math.PI/4); |
| assertEvaluatesTo("asin(-0.5)", -Math.PI/6); |
| assertEvaluatesTo("asin(0)", 0); |
| assertEvaluatesTo("asin(0.5)", Math.PI/6); |
| assertEvaluatesTo("asin(0.7071068)", Math.PI/4); |
| assertEvaluatesTo("asin(0.8660254)", Math.PI/3); |
| assertEvaluatesTo("asin(1)", Math.PI/2); |
| } |
| |
| public void testAsinhMethod() throws Exception { |
| assertEvaluatesTo("asinh(-1234567.89)", -14.719378760740035); |
| assertEvaluatesTo("asinh(-2.5)", -1.6472311463710958); |
| assertEvaluatesTo("asinh(-1)", -0.8813735870195429); |
| assertEvaluatesTo("asinh(0)", 0); |
| assertEvaluatesTo("asinh(1)", 0.8813735870195429); |
| assertEvaluatesTo("asinh(2.5)", 1.6472311463710958); |
| assertEvaluatesTo("asinh(1234567.89)", 14.719378760740035); |
| } |
| |
| public void testAtanMethod() throws Exception { |
| assertEvaluatesTo("atan(-1.732050808)", -Math.PI/3); |
| assertEvaluatesTo("atan(-1)", -Math.PI/4); |
| assertEvaluatesTo("atan(-0.577350269)", -Math.PI/6); |
| assertEvaluatesTo("atan(0)", 0); |
| assertEvaluatesTo("atan(0.577350269)", Math.PI/6); |
| assertEvaluatesTo("atan(1)", Math.PI/4); |
| assertEvaluatesTo("atan(1.732050808)", Math.PI/3); |
| } |
| |
| public void testAtan2Method() throws Exception { |
| assertEvaluatesTo("atan2(+0,+0)", +0.0); |
| assertEvaluatesTo("atan2(+0,-0)", +Math.PI); |
| assertEvaluatesTo("atan2(-0,+0)", -0.0); |
| assertEvaluatesTo("atan2(-0,-0)", -Math.PI); |
| assertEvaluatesTo("atan2(2,2)", Math.PI/4); |
| assertEvaluatesTo("atan2(-2,2)", -Math.PI/4); |
| assertEvaluatesTo("atan2(2,-2)", Math.PI*3/4); |
| assertEvaluatesTo("atan2(-2,-2)", -Math.PI*3/4); |
| } |
| |
| public void testAtanhMethod() throws Exception { |
| assertEvaluatesTo("atanh(-1)", Double.NEGATIVE_INFINITY); |
| assertEvaluatesTo("atanh(-0.5)", -0.5493061443340549); |
| assertEvaluatesTo("atanh(0)", 0); |
| assertEvaluatesTo("atanh(0.5)", 0.5493061443340549); |
| assertEvaluatesTo("atanh(1)", Double.POSITIVE_INFINITY); |
| } |
| |
| public void testCeilMethod() throws Exception { |
| assertEvaluatesTo("ceil(0)", 0); |
| assertEvaluatesTo("ceil(0.1)", 1); |
| assertEvaluatesTo("ceil(0.9)", 1); |
| assertEvaluatesTo("ceil(25.2)", 26); |
| assertEvaluatesTo("ceil(-0.1)", 0); |
| assertEvaluatesTo("ceil(-0.9)", 0); |
| assertEvaluatesTo("ceil(-1.1)", -1); |
| } |
| |
| public void testCosMethod() throws Exception { |
| assertEvaluatesTo("cos(0)", 1); |
| assertEvaluatesTo("cos(" + Math.PI/2 + ")", 0); |
| assertEvaluatesTo("cos(" + -Math.PI/2 + ")", 0); |
| assertEvaluatesTo("cos(" + Math.PI/4 + ")", 0.7071068); |
| assertEvaluatesTo("cos(" + -Math.PI/4 + ")", 0.7071068); |
| assertEvaluatesTo("cos(" + Math.PI*2/3 + ")",-0.5); |
| assertEvaluatesTo("cos(" + -Math.PI*2/3 + ")", -0.5); |
| assertEvaluatesTo("cos(" + Math.PI/6 + ")", 0.8660254); |
| assertEvaluatesTo("cos(" + -Math.PI/6 + ")", 0.8660254); |
| } |
| |
| public void testCoshMethod() throws Exception { |
| assertEvaluatesTo("cosh(0)", 1); |
| assertEvaluatesTo("cosh(-1)", 1.5430806348152437); |
| assertEvaluatesTo("cosh(1)", 1.5430806348152437); |
| assertEvaluatesTo("cosh(-0.5)", 1.1276259652063807); |
| assertEvaluatesTo("cosh(0.5)", 1.1276259652063807); |
| assertEvaluatesTo("cosh(-12.3456789)", 114982.09728671524); |
| assertEvaluatesTo("cosh(12.3456789)", 114982.09728671524); |
| } |
| |
| public void testExpMethod() throws Exception { |
| assertEvaluatesTo("exp(0)", 1); |
| assertEvaluatesTo("exp(-1)", 0.36787944117); |
| assertEvaluatesTo("exp(1)", 2.71828182846); |
| assertEvaluatesTo("exp(-0.5)", 0.60653065971); |
| assertEvaluatesTo("exp(0.5)", 1.6487212707); |
| assertEvaluatesTo("exp(-12.3456789)", 0.0000043485); |
| assertEvaluatesTo("exp(12.3456789)", 229964.194569); |
| } |
| |
| public void testFloorMethod() throws Exception { |
| assertEvaluatesTo("floor(0)", 0); |
| assertEvaluatesTo("floor(0.1)", 0); |
| assertEvaluatesTo("floor(0.9)", 0); |
| assertEvaluatesTo("floor(25.2)", 25); |
| assertEvaluatesTo("floor(-0.1)", -1); |
| assertEvaluatesTo("floor(-0.9)", -1); |
| assertEvaluatesTo("floor(-1.1)", -2); |
| } |
| |
| public void testHaversinMethod() throws Exception { |
| assertEvaluatesTo("haversin(40.7143528,-74.0059731,40.759011,-73.9844722)", 5.285885589128259); |
| } |
| |
| public void testLnMethod() throws Exception { |
| assertEvaluatesTo("ln(0)", Double.NEGATIVE_INFINITY); |
| assertEvaluatesTo("ln(" + Math.E + ")", 1); |
| assertEvaluatesTo("ln(-1)", Double.NaN); |
| assertEvaluatesTo("ln(1)", 0); |
| assertEvaluatesTo("ln(0.5)", -0.69314718056); |
| assertEvaluatesTo("ln(12.3456789)", 2.51330611521); |
| } |
| |
| public void testLog10Method() throws Exception { |
| assertEvaluatesTo("log10(0)", Double.NEGATIVE_INFINITY); |
| assertEvaluatesTo("log10(1)", 0); |
| assertEvaluatesTo("log10(-1)", Double.NaN); |
| assertEvaluatesTo("log10(0.5)", -0.3010299956639812); |
| assertEvaluatesTo("log10(12.3456789)", 1.0915149771692705); |
| } |
| |
| public void testLognMethod() throws Exception { |
| assertEvaluatesTo("logn(2, 0)", Double.NEGATIVE_INFINITY); |
| assertEvaluatesTo("logn(2, 1)", 0); |
| assertEvaluatesTo("logn(2, -1)", Double.NaN); |
| assertEvaluatesTo("logn(2, 0.5)", -1); |
| assertEvaluatesTo("logn(2, 12.3456789)", 3.6259342686489378); |
| assertEvaluatesTo("logn(2.5, 0)", Double.NEGATIVE_INFINITY); |
| assertEvaluatesTo("logn(2.5, 1)", 0); |
| assertEvaluatesTo("logn(2.5, -1)", Double.NaN); |
| assertEvaluatesTo("logn(2.5, 0.5)", -0.75647079736603); |
| assertEvaluatesTo("logn(2.5, 12.3456789)", 2.7429133874016745); |
| } |
| |
| public void testMaxMethod() throws Exception { |
| assertEvaluatesTo("max(0, 0)", 0); |
| assertEvaluatesTo("max(1, 0)", 1); |
| assertEvaluatesTo("max(0, -1)", 0); |
| assertEvaluatesTo("max(-1, 0)", 0); |
| assertEvaluatesTo("max(25, 23)", 25); |
| } |
| |
| public void testMinMethod() throws Exception { |
| assertEvaluatesTo("min(0, 0)", 0); |
| assertEvaluatesTo("min(1, 0)", 0); |
| assertEvaluatesTo("min(0, -1)", -1); |
| assertEvaluatesTo("min(-1, 0)", -1); |
| assertEvaluatesTo("min(25, 23)", 23); |
| } |
| |
| public void testPowMethod() throws Exception { |
| assertEvaluatesTo("pow(0, 0)", 1); |
| assertEvaluatesTo("pow(0.1, 2)", 0.01); |
| assertEvaluatesTo("pow(0.9, -1)", 1.1111111111111112); |
| assertEvaluatesTo("pow(2.2, -2.5)", 0.13929749224447147); |
| assertEvaluatesTo("pow(5, 3)", 125); |
| assertEvaluatesTo("pow(-0.9, 5)", -0.59049); |
| assertEvaluatesTo("pow(-1.1, 2)", 1.21); |
| } |
| |
| public void testSinMethod() throws Exception { |
| assertEvaluatesTo("sin(0)", 0); |
| assertEvaluatesTo("sin(" + Math.PI/2 + ")", 1); |
| assertEvaluatesTo("sin(" + -Math.PI/2 + ")", -1); |
| assertEvaluatesTo("sin(" + Math.PI/4 + ")", 0.7071068); |
| assertEvaluatesTo("sin(" + -Math.PI/4 + ")", -0.7071068); |
| assertEvaluatesTo("sin(" + Math.PI*2/3 + ")", 0.8660254); |
| assertEvaluatesTo("sin(" + -Math.PI*2/3 + ")", -0.8660254); |
| assertEvaluatesTo("sin(" + Math.PI/6 + ")", 0.5); |
| assertEvaluatesTo("sin(" + -Math.PI/6 + ")", -0.5); |
| } |
| |
| public void testSinhMethod() throws Exception { |
| assertEvaluatesTo("sinh(0)", 0); |
| assertEvaluatesTo("sinh(-1)", -1.1752011936438014); |
| assertEvaluatesTo("sinh(1)", 1.1752011936438014); |
| assertEvaluatesTo("sinh(-0.5)", -0.52109530549); |
| assertEvaluatesTo("sinh(0.5)", 0.52109530549); |
| assertEvaluatesTo("sinh(-12.3456789)", -114982.09728236674); |
| assertEvaluatesTo("sinh(12.3456789)", 114982.09728236674); |
| } |
| |
| public void testSqrtMethod() throws Exception { |
| assertEvaluatesTo("sqrt(0)", 0); |
| assertEvaluatesTo("sqrt(-1)", Double.NaN); |
| assertEvaluatesTo("sqrt(0.49)", 0.7); |
| assertEvaluatesTo("sqrt(49)", 7); |
| } |
| |
| public void testTanMethod() throws Exception { |
| assertEvaluatesTo("tan(0)", 0); |
| assertEvaluatesTo("tan(-1)", -1.55740772465); |
| assertEvaluatesTo("tan(1)", 1.55740772465); |
| assertEvaluatesTo("tan(-0.5)", -0.54630248984); |
| assertEvaluatesTo("tan(0.5)", 0.54630248984); |
| assertEvaluatesTo("tan(-1.3)", -3.60210244797); |
| assertEvaluatesTo("tan(1.3)", 3.60210244797); |
| } |
| |
| public void testTanhMethod() throws Exception { |
| assertEvaluatesTo("tanh(0)", 0); |
| assertEvaluatesTo("tanh(-1)", -0.76159415595); |
| assertEvaluatesTo("tanh(1)", 0.76159415595); |
| assertEvaluatesTo("tanh(-0.5)", -0.46211715726); |
| assertEvaluatesTo("tanh(0.5)", 0.46211715726); |
| assertEvaluatesTo("tanh(-12.3456789)", -0.99999999996); |
| assertEvaluatesTo("tanh(12.3456789)", 0.99999999996); |
| } |
| } |