Examples with Mutation org.evosuite.coverage.mutation.Mutation used on opensource projects

Example 1 with Mutation

use of org.evosuite.coverage.mutation.Mutation in project evosuite by EvoSuite.

the class DeleteStatement method apply.

/* (non-Javadoc)
	 * @see org.evosuite.cfg.instrumentation.MutationOperator#apply(org.objectweb.asm.tree.MethodNode, java.lang.String, java.lang.String, org.evosuite.cfg.BytecodeInstruction)
	 */
/**
 * {@inheritDoc}
 */
@Override
public List<Mutation> apply(MethodNode mn, String className, String methodName, BytecodeInstruction instruction, Frame frame) {
    List<Mutation> mutations = new LinkedList<Mutation>();
    MethodInsnNode node = (MethodInsnNode) instruction.getASMNode();
    Type returnType = Type.getReturnType(node.desc);
    // insert mutation into bytecode with conditional
    InsnList mutation = new InsnList();
    logger.info("Mutation deletestatement for statement " + node.name + node.desc);
    for (Type argType : Type.getArgumentTypes(node.desc)) {
        if (argType.getSize() == 0)
            logger.info("Ignoring parameter of type " + argType);
        else if (argType.getSize() == 2) {
            mutation.insert(new InsnNode(Opcodes.POP2));
            logger.debug("Deleting parameter of 2 type " + argType);
        } else {
            logger.debug("Deleting parameter of 1 type " + argType);
            mutation.insert(new InsnNode(Opcodes.POP));
        }
    }
    if (node.getOpcode() == Opcodes.INVOKEVIRTUAL) {
        logger.debug("Deleting callee of type " + node.owner);
        mutation.add(new InsnNode(Opcodes.POP));
    } else if (node.getOpcode() == Opcodes.INVOKEINTERFACE) {
        boolean isStatic = false;
        try {
            Class<?> clazz = Class.forName(node.owner.replace('/', '.'), false, DeleteStatement.class.getClassLoader());
            for (java.lang.reflect.Method method : clazz.getMethods()) {
                if (method.getName().equals(node.name)) {
                    if (Type.getMethodDescriptor(method).equals(node.desc)) {
                        if (Modifier.isStatic(method.getModifiers()))
                            isStatic = true;
                    }
                }
            }
        } catch (ClassNotFoundException e) {
            logger.warn("Could not find class: " + node.owner + ", this is likely a severe problem");
        }
        if (!isStatic) {
            logger.info("Deleting callee of type " + node.owner);
            mutation.add(new InsnNode(Opcodes.POP));
        }
    }
    mutation.add(getDefault(returnType));
    // insert mutation into pool
    Mutation mutationObject = MutationPool.addMutation(className, methodName, NAME + " " + node.name + node.desc, instruction, mutation, Mutation.getDefaultInfectionDistance());
    mutations.add(mutationObject);
    return mutations;
}

Example 2 with Mutation

use of org.evosuite.coverage.mutation.Mutation in project evosuite by EvoSuite.

the class ReplaceArithmeticOperator method apply.

/* (non-Javadoc)
	 * @see org.evosuite.cfg.instrumentation.MutationOperator#apply(org.objectweb.asm.tree.MethodNode, java.lang.String, java.lang.String, org.evosuite.cfg.BytecodeInstruction)
	 */
/**
 * {@inheritDoc}
 */
@Override
public List<Mutation> apply(MethodNode mn, String className, String methodName, BytecodeInstruction instruction, Frame frame) {
    numVariable = getNextIndex(mn);
    List<Mutation> mutations = new LinkedList<Mutation>();
    InsnNode node = (InsnNode) instruction.getASMNode();
    for (int opcode : getMutations(node.getOpcode())) {
        InsnNode mutation = new InsnNode(opcode);
        // insert mutation into pool
        Mutation mutationObject = MutationPool.addMutation(className, methodName, NAME + " " + getOp(node.getOpcode()) + " -> " + getOp(opcode), instruction, mutation, getInfectionDistance(node.getOpcode(), opcode));
        mutations.add(mutationObject);
    }
    return mutations;
}

Example 3 with Mutation

use of org.evosuite.coverage.mutation.Mutation in project evosuite by EvoSuite.

the class DeleteField method apply.

/* (non-Javadoc)
	 * @see org.evosuite.cfg.instrumentation.mutation.MutationOperator#apply(org.objectweb.asm.tree.MethodNode, java.lang.String, java.lang.String, org.evosuite.cfg.BytecodeInstruction)
	 */
/**
 * {@inheritDoc}
 */
@Override
public List<Mutation> apply(MethodNode mn, String className, String methodName, BytecodeInstruction instruction, Frame frame) {
    List<Mutation> mutations = new LinkedList<Mutation>();
    FieldInsnNode node = (FieldInsnNode) instruction.getASMNode();
    Type fieldType = Type.getType(node.desc);
    // insert mutation into bytecode with conditional
    InsnList mutation = new InsnList();
    logger.debug("Mutation deletefield for statement " + node.name + node.desc);
    if (node.getOpcode() == Opcodes.GETFIELD) {
        logger.debug("Deleting source of type " + node.owner);
        mutation.add(new InsnNode(Opcodes.POP));
    }
    mutation.add(getDefault(fieldType));
    // insert mutation into pool
    Mutation mutationObject = MutationPool.addMutation(className, methodName, NAME + " " + node.name + node.desc, instruction, mutation, getInfectionDistance(node, mutation));
    mutations.add(mutationObject);
    return mutations;
}

Example 4 with Mutation

use of org.evosuite.coverage.mutation.Mutation in project evosuite by EvoSuite.

the class NegateCondition method apply.

/* (non-Javadoc)
	 * @see org.evosuite.cfg.instrumentation.MutationOperator#apply(org.objectweb.asm.tree.MethodNode, java.lang.String, java.lang.String, org.evosuite.cfg.BytecodeInstruction)
	 */
/**
 * {@inheritDoc}
 */
@Override
public List<Mutation> apply(MethodNode mn, String className, String methodName, BytecodeInstruction instruction, Frame frame) {
    List<Mutation> mutations = new LinkedList<Mutation>();
    JumpInsnNode node = (JumpInsnNode) instruction.getASMNode();
    LabelNode target = node.label;
    // insert mutation into bytecode with conditional
    JumpInsnNode mutation = new JumpInsnNode(getOpposite(node.getOpcode()), target);
    // insert mutation into pool
    Mutation mutationObject = MutationPool.addMutation(className, methodName, NAME, instruction, mutation, Mutation.getDefaultInfectionDistance());
    mutations.add(mutationObject);
    return mutations;
}

Example 5 with Mutation

use of org.evosuite.coverage.mutation.Mutation in project evosuite by EvoSuite.

the class TestGenerationResultBuilder method resetTestData.

private void resetTestData() {
    code = "";
    ga = null;
    testCode.clear();
    testCases.clear();
    contractViolations.clear();
    uncoveredLines = LinePool.getAllLines();
    for (Branch b : BranchPool.getInstance(TestGenerationContext.getInstance().getClassLoaderForSUT()).getAllBranches()) {
        uncoveredBranches.add(new BranchInfo(b, true));
        uncoveredBranches.add(new BranchInfo(b, false));
    }
    for (Mutation m : MutationPool.getMutants()) {
        uncoveredMutants.add(new MutationInfo(m));
    }
}