Best EvoMaster code snippet using org.evomaster.client.java.instrumentation.coverage.noninteger.NonIntegerComparisons.heuristic
Source: NonIntegerComparisons.java
1package org.evomaster.client.java.instrumentation.coverage.noninteger;2import org.evomaster.client.java.instrumentation.coverage.methodreplacement.DistanceHelper;3import org.evomaster.client.java.instrumentation.heuristic.TruthnessUtils;4import org.evomaster.client.java.instrumentation.staticstate.ExecutionTracer;5/**6 * Method replacement for LCMP, DCMPL, DCMPG, FCMPL, FCMPG instructions.7 * Those are used for when long, double and float numbers are compared.8 * See:9 * https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-6.html10 *11 * Created by arcuri82 on 28-Feb-20.12 */13public class NonIntegerComparisons {14 /*15 WARN: all the names of the public methods here are used in the16 bytecode instrumentation. If change any name, should also change17 the instrumentator18 */19 private static final double REACHED = 0.2d;20 private static double heuristic(double distance){21 //value in [0,1], proportional to distance22 double normalized = TruthnessUtils.normalizeValue(distance);23 //the higher the distance, the worse the score24 double score = 1d - normalized;25 double scaled = REACHED + ((1d-REACHED) * score);26 return scaled;27 }28 public static int replaceLCMP(long a, long b, String id){29 double distance = DistanceHelper.getDistanceToEquality(a, b);30 double less = 0;31 double eq = 0;32 double greater = 0;33 int res;34 if(a == b){35 less = REACHED;36 eq = 1d;37 greater = REACHED;38 res = 0;39 } else if(a < b){40 less = 1d;41 eq = heuristic(distance);42 greater = heuristic(DistanceHelper.increasedDistance(distance, 1));43 res = -1;44 } else {45 assert a > b;46 less = heuristic(DistanceHelper.increasedDistance(distance, 1));47 eq = heuristic(distance);48 greater = 1d;49 res = +1;50 }51 ExecutionTracer.executedNumericComparison(id, less, eq, greater);52 return res;53 }54 public static int replaceDCMPG(double a, double b, String id) {55 return replaceDCMP(a, b, id, 1);56 }57 public static int replaceDCMPL(double a, double b, String id) {58 return replaceDCMP(a, b, id, -1);59 }60 public static int replaceFCMPG(float a, float b, String id) {61 return replaceDCMP(a, b, id, 1);62 }63 public static int replaceFCMPL(float a, float b, String id) {64 return replaceDCMP(a, b, id, -1);65 }66 private static int replaceDCMP(double a, double b, String id, int resWhenNotFinite){67 double less = 0;68 double eq = 0;69 double greater = 0;70 int res;71 if (!Double.isFinite(a) || !Double.isFinite(b)) {72 less = REACHED;73 eq = REACHED;74 greater = REACHED;75 res = resWhenNotFinite;76 } else {77 double distance = DistanceHelper.getDistanceToEquality(a, b);78 if (a == b) {79 less = REACHED;80 eq = 1d;81 greater = REACHED;82 res = 0;83 } else if (a < b) {84 less = 1d;85 eq = heuristic(distance);86 greater = heuristic(DistanceHelper.increasedDistance(distance, 1));87 res = -1;88 } else {89 assert a > b;90 less = heuristic(DistanceHelper.increasedDistance(distance, 1));91 eq = heuristic(distance);92 greater = 1d;93 res = +1;94 }95 }96 ExecutionTracer.executedNumericComparison(id, less, eq, greater);97 return res;98 }99}...
heuristic
Using AI Code Generation
1 public void testNonIntegerComparisons() throws Exception {2 ControllerDto dto = getControllerDto(baseUrlOfSut, "org.evomaster.client.java.instrumentation.example.noninteger.NonIntegerComparisons");3 List<IndividualDto> inds = getTestSuiteSolution(dto, 10, 0.6);4 assertTrue(inds.size() > 0);5 }6}
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