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How to use CoverageClassVisitor class of org.evomaster.client.java.instrumentation.coverage package

Best EvoMaster code snippet using org.evomaster.client.java.instrumentation.coverage.CoverageClassVisitor

Source:CoverageClassVisitor.java

...9/**10 * Add instrumentations to keep track of which statements/lines11 * are covered during test execution12 */13public class CoverageClassVisitor extends ClassVisitor {14    private final String bytecodeClassName;15    public CoverageClassVisitor(ClassVisitor cv, ClassName className) {16        super(Constants.ASM, cv);17        bytecodeClassName = className.getBytecodeName();18        UnitsInfoRecorder.markNewUnit(className.getFullNameWithDots());19    }20    @Override21    public MethodVisitor visitMethod(int methodAccess,22                                     String name,23                                     String descriptor,24                                     String signature,25                                     String[] exceptions) {26        MethodVisitor mv = super.visitMethod(27                methodAccess, name, descriptor, signature, exceptions);28        /*29            Methods added by the compiler (eg synthetics and bridges) are...

CoverageClassVisitor

Using AI Code Generation

1package org.evomaster.client.java.instrumentation.example;2import org.evomaster.client.java.instrumentation.coverage.CoverageClassVisitor;3import org.evomaster.client.java.instrumentation.heuristic.CoverageTestFitness;4import org.evomaster.client.java.instrumentation.heuristic.Truthness;5import org.objectweb.asm.ClassReader;6import org.objectweb.asm.ClassWriter;7import org.objectweb.asm.Opcodes;8import org.objectweb.asm.util.CheckClassAdapter;9import java.io.IOException;10import java.util.List;11public class CoverageExample {12    public static void main(String[] args) throws IOException {13        String className = "org/evomaster/client/java/instrumentation/example/ExampleClass";14        ClassReader reader = new ClassReader(className);15        ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_FRAMES);16        CheckClassAdapter checkClassAdapter = new CheckClassAdapter(writer, false);17        CoverageClassVisitor coverageClassVisitor = new CoverageClassVisitor(Opcodes.ASM7, checkClassAdapter, className);18        reader.accept(coverageClassVisitor, ClassReader.EXPAND_FRAMES);19        List<CoverageTestFitness> testFitnesses = coverageClassVisitor.getCoverageGoals();20        for (CoverageTestFitness testFitness : testFitnesses) {21            System.out.println("goal: " + testFitness.getGoalClassName() + " " + testFitness.getTestMethodName());22            System.out.println("description: " + testFitness.getDescription());23            System.out.println("coverage: " + testFitness.getFitness(Truthness.TRUE));24            System.out.println("fitness: " + testFitness.getFitness(Truthness.FALSE));25        }26    }27}

CoverageClassVisitor

Using AI Code Generation

1import org.evomaster.client.java.instrumentation.coverage.CoverageClassVisitor;2import java.io.File;3import java.io.FileWriter;4import java.io.IOException;5import java.io.PrintWriter;6import java.lang.instrument.ClassFileTransformer;7import java.lang.instrument.IllegalClassFormatException;8import java.security.ProtectionDomain;9public class CoverageTransformer implements ClassFileTransformer {10    private static final String COVERAGE_FILE = "coverage.json";11    private final CoverageClassVisitor visitor;12    public CoverageTransformer() {13        visitor = new CoverageClassVisitor();14    }15    public byte[] transform(ClassLoader loader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer) throws IllegalClassFormatException {16        if (className.startsWith("java/") || className.startsWith("javax/")) {17            return classfileBuffer;18        }19        try {20            return visitor.transform(loader, className, classfileBuffer);21        } catch (Throwable e) {22            System.err.println("ERROR: " + e.getMessage());23            e.printStackTrace();24            return classfileBuffer;25        }26    }27    public static void writeCoverageToFile() {28        try {29            File file = new File(COVERAGE_FILE);30            file.createNewFile();31            FileWriter fileWriter = new FileWriter(file);32            PrintWriter printWriter = new PrintWriter(fileWriter);33            printWriter.print(CoverageClassVisitor.getJSON());34            printWriter.close();35        } catch (IOException e) {36            e.printStackTrace();37        }38    }39}

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