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org.evosuite.symbolic.SymbolicObserver Maven / Gradle / Ivy
/**
* Copyright (C) 2010-2018 Gordon Fraser, Andrea Arcuri and EvoSuite
* contributors
*
* This file is part of EvoSuite.
*
* EvoSuite is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3.0 of the License, or
* (at your option) any later version.
*
* EvoSuite is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with EvoSuite. If not, see ";
private final SymbolicEnvironment env;
public SymbolicObserver(SymbolicEnvironment env) {
this.env = env;
}
@Override
public void output(int position, String output) {
// TODO Auto-generated method stub
}
private void before(ConstructorStatement stmt, Scope scope) {
String className = stmt.getConstructor().getDeclaringClass().getName();
VM.NEW(className);
VM.DUP();
String desc = Type.getConstructorDescriptor(stmt.getConstructor().getConstructor());
pushParameterList(stmt.getParameterReferences(), scope, desc);
String owner = className.replace('.', '/');
/* indicates if the following code is instrumented or not */
VM.INVOKESPECIAL(owner, INIT, desc);
boolean needThis = true;
call_vm_caller_stack_params(needThis, stmt.getParameterReferences(), scope, desc);
}
private void after(ConstructorStatement stmt, Scope scope) {
String className = stmt.getConstructor().getDeclaringClass().getName();
String desc = Type.getConstructorDescriptor(stmt.getConstructor().getConstructor());
/* pops operands if previous code was not instrumented */
// constructor return type is always VOID
String onwer = className.replace('.', '/');
VM.CALL_RESULT(onwer, INIT, desc);
VariableReference varRef = stmt.getReturnValue();
ReferenceConstant nonNullRef = (ReferenceConstant) env.topFrame().operandStack.popRef();
String varName = varRef.getName();
symb_references.put(varName, nonNullRef);
}
@Override
public void beforeStatement(Statement s, Scope scope) {
if (VM.getInstance().isStopped()) {
return;
}
VM.enableCallBacks();
try {
if (env.isEmpty()) {
env.prepareStack(null);
}
if (s instanceof NullStatement) {
before((NullStatement) s, scope);
} else if (s instanceof AssignmentStatement) {
before((AssignmentStatement) s, scope);
} else if (s instanceof EnumPrimitiveStatement) {
before((EnumPrimitiveStatement) s, scope);
} else if (s instanceof ArrayStatement) {
before((ArrayStatement) s, scope);
} else if (s instanceof FieldStatement) {
before((FieldStatement) s, scope);
} else if (s instanceof ConstructorStatement) {
before((ConstructorStatement) s, scope);
} else if (s instanceof MethodStatement) {
before((MethodStatement) s, scope);
} else if (s instanceof FunctionalMockStatement) {
before((FunctionalMockStatement) s, scope);
}
/* primitive statements */
else if (s instanceof BooleanPrimitiveStatement) {
before((BooleanPrimitiveStatement) s, scope);
} else if (s instanceof BytePrimitiveStatement) {
before((BytePrimitiveStatement) s, scope);
} else if (s instanceof CharPrimitiveStatement) {
before((CharPrimitiveStatement) s, scope);
} else if (s instanceof DoublePrimitiveStatement) {
before((DoublePrimitiveStatement) s, scope);
} else if (s instanceof FloatPrimitiveStatement) {
before((FloatPrimitiveStatement) s, scope);
} else if (s instanceof IntPrimitiveStatement) {
before((IntPrimitiveStatement) s, scope);
} else if (s instanceof LongPrimitiveStatement) {
before((LongPrimitiveStatement) s, scope);
} else if (s instanceof ShortPrimitiveStatement) {
before((ShortPrimitiveStatement) s, scope);
} else if (s instanceof StringPrimitiveStatement) {
before((StringPrimitiveStatement) s, scope);
} else if (s instanceof ClassPrimitiveStatement) {
before((ClassPrimitiveStatement) s, scope);
} else if (s instanceof FileNamePrimitiveStatement) {
before((FileNamePrimitiveStatement) s, scope);
} else if (s instanceof LocalAddressPrimitiveStatement) {
before((LocalAddressPrimitiveStatement) s, scope);
} else if (s instanceof RemoteAddressPrimitiveStatement) {
before((RemoteAddressPrimitiveStatement) s, scope);
} else if (s instanceof UrlPrimitiveStatement) {
before((UrlPrimitiveStatement) s, scope);
} else if (s instanceof PrimitiveExpression) {
before((PrimitiveExpression) s, scope);
} else {
throw new UnsupportedOperationException("Cannot handle statement of type " + s.getClass());
}
} catch (Throwable t) {
throw new EvosuiteError(t);
}
}
private void before(PrimitiveExpression s, Scope scope) {
// TODO Auto-generated method stub
throw new UnsupportedOperationException("This method should be implemented!");
}
private void before(ClassPrimitiveStatement s, Scope scope) {
/* do nothing */
}
private static final int COMPONENT_TYPE_BOOLEAN = 4;
private static final int COMPONENT_TYPE_CHAR = 5;
private static final int COMPONENT_TYPE_FLOAT = 6;
private static final int COMPONENT_TYPE_DOUBLE = 7;
private static final int COMPONENT_TYPE_BYTE = 8;
private static final int COMPONENT_TYPE_SHORT = 9;
private static final int COMPONENT_TYPE_INT = 10;
private static final int COMPONENT_TYPE_LONG = 11;
private void after(ArrayStatement s, Scope scope) {
try {
ArrayReference arrayRef = (ArrayReference) s.getReturnValue();
Object conc_array;
conc_array = arrayRef.getObject(scope);
if (arrayRef.getArrayDimensions() == 1) {
int length = arrayRef.getArrayLength();
IntegerConstant lengthExpr = ExpressionFactory.buildNewIntegerConstant(length);
Class component_class = arrayRef.getComponentClass();
env.topFrame().operandStack.pushBv32(lengthExpr);
if (component_class.equals(int.class)) {
VM.NEWARRAY(length, COMPONENT_TYPE_INT);
} else if (component_class.equals(char.class)) {
VM.NEWARRAY(length, COMPONENT_TYPE_CHAR);
} else if (component_class.equals(short.class)) {
VM.NEWARRAY(length, COMPONENT_TYPE_SHORT);
} else if (component_class.equals(byte.class)) {
VM.NEWARRAY(length, COMPONENT_TYPE_BYTE);
} else if (component_class.equals(float.class)) {
VM.NEWARRAY(length, COMPONENT_TYPE_FLOAT);
} else if (component_class.equals(long.class)) {
VM.NEWARRAY(length, COMPONENT_TYPE_LONG);
} else if (component_class.equals(boolean.class)) {
VM.NEWARRAY(length, COMPONENT_TYPE_BOOLEAN);
} else if (component_class.equals(double.class)) {
VM.NEWARRAY(length, COMPONENT_TYPE_DOUBLE);
} else {
// push arguments
String componentTypeName = component_class.getName().replace('.', '/');
VM.ANEWARRAY(length, componentTypeName);
}
} else {
// push dimensions
List dimensions = arrayRef.getLengths();
for (int i = 0; i < arrayRef.getArrayDimensions(); i++) {
int length = dimensions.get(i);
IntegerConstant lengthExpr = ExpressionFactory.buildNewIntegerConstant(length);
env.topFrame().operandStack.pushBv32(lengthExpr);
}
String arrayTypeDesc = Type.getDescriptor(conc_array.getClass());
VM.MULTIANEWARRAY(arrayTypeDesc, arrayRef.getArrayDimensions());
}
ReferenceConstant symb_array = (ReferenceConstant) env.topFrame().operandStack.popRef();
env.heap.initializeReference(conc_array, symb_array);
String varRef_name = arrayRef.getName();
symb_references.put(varRef_name, symb_array);
} catch (CodeUnderTestException e) {
throw new RuntimeException(e);
}
}
private void before(EnumPrimitiveStatement s, Scope scope) {
/* do nothing */
}
private void before(NullStatement s, Scope scope) {
/* do nothing */
}
private void before(FieldStatement s, Scope scope) {
/* do nothing */
}
private static class ReferenceExpressionPair {
private final ReferenceExpression ref;
private final Expression expr;
public ReferenceExpressionPair(ReferenceExpression ref, Expression expr) {
this.ref = ref;
this.expr = expr;
}
public ReferenceExpression getReference() {
return ref;
}
public Expression getExpression() {
return expr;
}
}
private void after(AssignmentStatement s, Scope scope) {
VariableReference lhs = s.getReturnValue();
VariableReference rhs = s.getValue();
ReferenceExpressionPair readResult = read(rhs, scope);
if (lhs instanceof FieldReference) {
writeField((FieldReference) lhs, readResult, scope);
} else if (lhs instanceof ArrayIndex) {
writeArray((ArrayIndex) lhs, readResult, scope);
} else {
writeVariable(lhs, readResult);
}
}
private ReferenceExpressionPair read(VariableReference rhs, Scope scope) {
if (rhs instanceof FieldReference) {
return readField((FieldReference) rhs, scope);
} else if (rhs instanceof ArrayIndex) {
return readArray((ArrayIndex) rhs, scope);
} else {
return readVariable(rhs, scope);
}
}
/**
* Reads a VariableReference from the stored symbolic references and
* symbolic expressions.
*
* @throws IllegalArgumentException
* if no value was found
*
* @param rhs
* @param scope
* @return
*/
private ReferenceExpressionPair readVariable(VariableReference rhs, Scope scope) {
String rhs_name = rhs.getName();
ReferenceExpression symb_ref = symb_references.get(rhs_name);
Expression symb_expr = symb_expressions.get(rhs_name);
return new ReferenceExpressionPair(symb_ref, symb_expr);
}
private ReferenceExpressionPair readArray(ArrayIndex rhs, Scope scope) {
ArrayReference arrayReference = rhs.getArray();
ReferenceConstant symb_array = (ReferenceConstant) symb_references.get(arrayReference.getName());
int conc_index = rhs.getArrayIndex();
Class componentClass = arrayReference.getComponentClass();
try {
Object conc_array = arrayReference.getObject(scope);
if (componentClass.equals(int.class)) {
int conc_value = Array.getInt(conc_array, conc_index);
IntegerValue expr = env.heap.array_load(symb_array, conc_index, conc_value);
ReferenceConstant newIntegerRef = newIntegerReference(conc_value, expr);
return new ReferenceExpressionPair(newIntegerRef, expr);
} else if (componentClass.equals(char.class)) {
char conc_value = Array.getChar(conc_array, conc_index);
IntegerValue expr = env.heap.array_load(symb_array, conc_index, conc_value);
ReferenceConstant newCharacterRef = newCharacterReference(conc_value, expr);
return new ReferenceExpressionPair(newCharacterRef, expr);
} else if (componentClass.equals(boolean.class)) {
boolean conc_value = Array.getBoolean(conc_array, conc_index);
IntegerValue expr = env.heap.array_load(symb_array, conc_index, conc_value ? 1 : 0);
ReferenceConstant newBooleanRef = newBooleanReference(conc_value, expr);
return new ReferenceExpressionPair(newBooleanRef, expr);
} else if (componentClass.equals(byte.class)) {
byte conc_value = Array.getByte(conc_array, conc_index);
IntegerValue expr = env.heap.array_load(symb_array, conc_index, conc_value);
ReferenceConstant newByteRef = newByteReference(conc_value, expr);
return new ReferenceExpressionPair(newByteRef, expr);
} else if (componentClass.equals(short.class)) {
short conc_value = Array.getShort(conc_array, conc_index);
IntegerValue expr = env.heap.array_load(symb_array, conc_index, conc_value);
ReferenceConstant newShortRef = newShortReference(conc_value, expr);
return new ReferenceExpressionPair(newShortRef, expr);
} else if (componentClass.equals(long.class)) {
long conc_value = Array.getLong(conc_array, conc_index);
IntegerValue expr = env.heap.array_load(symb_array, conc_index, conc_value);
ReferenceConstant newLongRef = newLongReference(conc_value, expr);
return new ReferenceExpressionPair(newLongRef, expr);
} else if (componentClass.equals(float.class)) {
float conc_value = Array.getFloat(conc_array, conc_index);
RealValue expr = env.heap.array_load(symb_array, conc_index, conc_value);
ReferenceConstant newFloatRef = newFloatReference(conc_value, expr);
return new ReferenceExpressionPair(newFloatRef, expr);
} else if (componentClass.equals(double.class)) {
double conc_value = Array.getDouble(conc_array, conc_index);
RealValue expr = env.heap.array_load(symb_array, conc_index, conc_value);
ReferenceConstant newDoubleRef = newDoubleReference(conc_value, expr);
return new ReferenceExpressionPair(newDoubleRef, expr);
} else {
Object conc_value = Array.get(conc_array, conc_index);
if (conc_value instanceof String) {
StringValue expr = env.heap.array_load(symb_array, conc_index, (String) conc_value);
ReferenceConstant newStringRef = newStringReference((String) conc_value, expr);
return new ReferenceExpressionPair(newStringRef, expr);
} else {
ReferenceExpression ref = env.heap.getReference(conc_value);
if (conc_value != null && isWrapper(conc_value)) {
ReferenceConstant nonNullRef = (ReferenceConstant) ref;
Expression expr = findOrCreate(conc_value, nonNullRef);
return new ReferenceExpressionPair(ref, expr);
} else {
return new ReferenceExpressionPair(ref, null);
}
}
}
} catch (CodeUnderTestException e) {
throw new RuntimeException(e);
}
}
private ReferenceExpressionPair readField(FieldReference rhs, Scope scope) {
if (rhs.getSource() != null) {
/* instance field */
return readInstanceField(rhs.getSource(), rhs.getField().getField(), scope);
} else {
/* static field */
return readStaticField(rhs.getField().getField());
}
}
private ReferenceExpressionPair readStaticField(Field field) {
String owner = field.getDeclaringClass().getName().replace('.', '/');
String name = field.getName();
Class fieldClazz = field.getType();
try {
if (fieldClazz.equals(int.class)) {
int conc_value = field.getInt(null);
IntegerValue expr = env.heap.getStaticField(owner, name, conc_value);
ReferenceConstant newIntegerRef = newIntegerReference(conc_value, expr);
return new ReferenceExpressionPair(newIntegerRef, expr);
} else if (fieldClazz.equals(char.class)) {
char conc_value = field.getChar(null);
IntegerValue expr = env.heap.getStaticField(owner, name, conc_value);
ReferenceConstant newCharacterRef = newCharacterReference(conc_value, expr);
return new ReferenceExpressionPair(newCharacterRef, expr);
} else if (fieldClazz.equals(long.class)) {
long conc_value = field.getLong(null);
IntegerValue expr = env.heap.getStaticField(owner, name, conc_value);
ReferenceConstant newLongRef = newLongReference(conc_value, expr);
return new ReferenceExpressionPair(newLongRef, expr);
} else if (fieldClazz.equals(short.class)) {
short conc_value = field.getShort(null);
IntegerValue expr = env.heap.getStaticField(owner, name, conc_value);
ReferenceConstant newShortRef = newShortReference(conc_value, expr);
return new ReferenceExpressionPair(newShortRef, expr);
} else if (fieldClazz.equals(byte.class)) {
byte conc_value = field.getByte(null);
IntegerValue expr = env.heap.getStaticField(owner, name, conc_value);
ReferenceConstant newByteRef = newByteReference(conc_value, expr);
return new ReferenceExpressionPair(newByteRef, expr);
} else if (fieldClazz.equals(boolean.class)) {
boolean conc_value = field.getBoolean(null);
IntegerValue expr = env.heap.getStaticField(owner, name, conc_value ? 1 : 0);
ReferenceConstant newBooleanRef = newBooleanReference(conc_value, expr);
return new ReferenceExpressionPair(newBooleanRef, expr);
} else if (fieldClazz.equals(float.class)) {
float conc_value = field.getFloat(null);
RealValue expr = env.heap.getStaticField(owner, name, conc_value);
ReferenceConstant newFloatRef = newFloatReference(conc_value, expr);
return new ReferenceExpressionPair(newFloatRef, expr);
} else if (fieldClazz.equals(double.class)) {
double conc_value = field.getDouble(null);
RealValue expr = env.heap.getStaticField(owner, name, conc_value);
ReferenceConstant newDoubleRef = newDoubleReference(conc_value, expr);
return new ReferenceExpressionPair(newDoubleRef, expr);
} else {
Object conc_value = field.get(null);
if (conc_value instanceof String) {
String string = (String) conc_value;
StringValue expr = env.heap.getStaticField(owner, name, string);
ReferenceConstant newStringRef = newStringReference(string, expr);
return new ReferenceExpressionPair(newStringRef, expr);
} else {
ReferenceExpression ref = env.heap.getReference(conc_value);
if (conc_value != null && isWrapper(conc_value)) {
ReferenceConstant nonNullRef = (ReferenceConstant) ref;
Expression expr = findOrCreate(conc_value, nonNullRef);
return new ReferenceExpressionPair(ref, expr);
} else {
return new ReferenceExpressionPair(ref, null);
}
}
}
} catch (IllegalArgumentException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
}
private ReferenceExpressionPair readInstanceField(VariableReference source, Field field, Scope scope) {
String owner = field.getDeclaringClass().getName().replace('.', '/');
String name = field.getName();
Class fieldClazz = field.getType();
String source_name = source.getName();
ReferenceConstant symb_receiver = (ReferenceConstant) symb_references.get(source_name);
try {
Object conc_receiver = source.getObject(scope);
if (fieldClazz.equals(int.class)) {
int conc_value = field.getInt(conc_receiver);
IntegerValue expr = env.heap.getField(owner, name, conc_receiver, symb_receiver, conc_value);
ReferenceConstant newIntegerRef = newIntegerReference(conc_value, expr);
return new ReferenceExpressionPair(newIntegerRef, expr);
} else if (fieldClazz.equals(char.class)) {
char conc_value = field.getChar(conc_receiver);
IntegerValue expr = env.heap.getField(owner, name, conc_receiver, symb_receiver, conc_value);
ReferenceConstant newCharacterRef = newCharacterReference(conc_value, expr);
return new ReferenceExpressionPair(newCharacterRef, expr);
} else if (fieldClazz.equals(long.class)) {
long conc_value = field.getLong(conc_receiver);
IntegerValue expr = env.heap.getField(owner, name, conc_receiver, symb_receiver, conc_value);
ReferenceConstant newLongRef = newLongReference(conc_value, expr);
return new ReferenceExpressionPair(newLongRef, expr);
} else if (fieldClazz.equals(short.class)) {
short conc_value = field.getShort(conc_receiver);
IntegerValue expr = env.heap.getField(owner, name, conc_receiver, symb_receiver, conc_value);
ReferenceConstant newShortRef = newShortReference(conc_value, expr);
return new ReferenceExpressionPair(newShortRef, expr);
} else if (fieldClazz.equals(byte.class)) {
byte conc_value = field.getByte(conc_receiver);
IntegerValue expr = env.heap.getField(owner, name, conc_receiver, symb_receiver, conc_value);
ReferenceConstant newByteRef = newByteReference(conc_value, expr);
return new ReferenceExpressionPair(newByteRef, expr);
} else if (fieldClazz.equals(boolean.class)) {
boolean conc_value = field.getBoolean(conc_receiver);
IntegerValue expr = env.heap.getField(owner, name, conc_receiver, symb_receiver, conc_value ? 1 : 0);
ReferenceConstant newBooleanRef = newBooleanReference(conc_value, expr);
return new ReferenceExpressionPair(newBooleanRef, expr);
} else if (fieldClazz.equals(float.class)) {
float conc_value = field.getFloat(conc_receiver);
RealValue expr = env.heap.getField(owner, name, conc_receiver, symb_receiver, conc_value);
ReferenceConstant newFloatRef = newFloatReference(conc_value, expr);
return new ReferenceExpressionPair(newFloatRef, expr);
} else if (fieldClazz.equals(double.class)) {
double conc_value = field.getDouble(conc_receiver);
RealValue expr = env.heap.getField(owner, name, conc_receiver, symb_receiver, conc_value);
ReferenceConstant newDoubleRef = newDoubleReference(conc_value, expr);
return new ReferenceExpressionPair(newDoubleRef, expr);
} else {
Object conc_value = field.get(conc_receiver);
if (conc_value instanceof String) {
String string = (String) conc_value;
StringValue expr = env.heap.getField(owner, name, conc_receiver, symb_receiver, string);
ReferenceConstant newStringRef = newStringReference(string, expr);
return new ReferenceExpressionPair(newStringRef, expr);
} else {
ReferenceExpression ref = env.heap.getReference(conc_value);
if (conc_value != null && isWrapper(conc_value)) {
ReferenceConstant nonNullRef = (ReferenceConstant) ref;
Expression expr = findOrCreate(conc_value, nonNullRef);
return new ReferenceExpressionPair(ref, expr);
} else {
return new ReferenceExpressionPair(ref, null);
}
}
}
} catch (IllegalArgumentException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
} catch (CodeUnderTestException e) {
throw new RuntimeException(e);
}
}
private void before(AssignmentStatement s, Scope scope) {
/* do nothing */
}
private void writeVariable(VariableReference lhs, ReferenceExpressionPair readResult) {
String lhs_name = lhs.getName();
Expression expr = readResult.getExpression();
if (expr != null)
symb_expressions.put(lhs_name, expr);
ReferenceExpression ref = readResult.getReference();
if (ref != null)
symb_references.put(lhs_name, ref);
}
private void writeArray(ArrayIndex lhs, ReferenceExpressionPair readResult, Scope scope) {
ArrayReference arrayReference = lhs.getArray();
int conc_index = lhs.getArrayIndex();
Object conc_array;
try {
conc_array = arrayReference.getObject(scope);
} catch (CodeUnderTestException e) {
throw new EvosuiteError(e);
}
Type arrayType = Type.getType(conc_array.getClass());
Type elementType = arrayType.getElementType();
if (isValue(elementType) || elementType.equals(Type.getType(String.class))) {
Expression symb_value = readResult.getExpression();
symb_value = castIfNeeded(elementType, symb_value);
String array_name = arrayReference.getName();
ReferenceExpression symb_ref = symb_references.get(array_name);
ReferenceConstant symb_array = (ReferenceConstant) symb_ref;
env.heap.array_store(conc_array, symb_array, conc_index, symb_value);
} else {
/* ignore storing references (we use objects to find them) */
}
}
private Expression castIfNeeded(Type elementType, Expression symb_value) {
// cast integer to real if needed
if ((isFp32(elementType) || isFp64(elementType)) && symb_value instanceof IntegerValue) {
IntegerValue intExpr = (IntegerValue) symb_value;
double concValue = intExpr.getConcreteValue().doubleValue();
symb_value = new IntegerToRealCast(intExpr, concValue);
} else if ((isBv32(elementType) || isBv64(elementType)) && symb_value instanceof RealValue) {
RealValue realExpr = (RealValue) symb_value;
long concValue = realExpr.getConcreteValue().longValue();
symb_value = new RealToIntegerCast(realExpr, concValue);
}
return symb_value;
}
private void writeField(FieldReference lhs, ReferenceExpressionPair readResult, Scope scope) {
Field field = lhs.getField().getField();
String className = field.getDeclaringClass().getName().replace('.', '/');
String fieldName = field.getName();
Class fieldClass = field.getType();
Type fieldType = Type.getType(fieldClass);
if (isValue(fieldType) || fieldType.equals(Type.getType(String.class))) {
Expression symb_value = readResult.getExpression();
symb_value = castIfNeeded(fieldType, symb_value);
VariableReference source = lhs.getSource();
if (source != null) {
/* write symbolic expression to instance field */
String source_name = source.getName();
Object conc_receiver;
try {
conc_receiver = source.getObject(scope);
} catch (CodeUnderTestException e) {
throw new RuntimeException(e);
}
ReferenceConstant symb_receiver = (ReferenceConstant) symb_references.get(source_name);
env.heap.putField(className, fieldName, conc_receiver, symb_receiver, symb_value);
} else {
/* write symbolic expression to static field */
env.heap.putStaticField(className, fieldName, symb_value);
}
} else {
/*
* ignore writing of references (DSE does not store Reference
* fields)
*/
}
}
private void before(ShortPrimitiveStatement statement, Scope scope) {
/* do nothing */
}
private void before(LongPrimitiveStatement statement, Scope scope) {
/* do nothing */
}
private void before(FloatPrimitiveStatement statement, Scope scope) {
/* do nothing */
}
private void before(CharPrimitiveStatement statement, Scope scope) {
/* do nothing */
}
private void before(BytePrimitiveStatement statement, Scope scope) {
/* do nothing */
}
private void before(BooleanPrimitiveStatement statement, Scope scope) {
/* do nothing */
}
private void before(DoublePrimitiveStatement statement, Scope scope) {
/* do nothing */
}
private void before(MethodStatement statement, Scope scope) {
Method method = statement.getMethod().getMethod();
String owner = method.getDeclaringClass().getName().replace('.', '/');
String name = method.getName();
String desc = Type.getMethodDescriptor(method);
boolean needThis = statement.getCallee() != null;
if (needThis) {
VariableReference callee = statement.getCallee();
ReferenceExpressionPair refExprPair = read(callee, scope);
ReferenceExpression ref = refExprPair.getReference();
this.env.topFrame().operandStack.pushRef(ref);
}
List parameters = statement.getParameterReferences();
pushParameterList(parameters, scope, desc);
if (needThis) {
VariableReference callee = statement.getCallee();
Object receiver;
try {
receiver = callee.getObject(scope);
} catch (CodeUnderTestException e) {
throw new RuntimeException(e);
}
Class ownerClass = env.ensurePrepared(owner);
if (ownerClass.isInterface()) {
VM.INVOKEINTERFACE(receiver, owner, name, desc);
} else {
VM.INVOKEVIRTUAL(receiver, owner, name, desc);
}
} else {
VM.INVOKESTATIC(owner, name, desc);
}
call_vm_caller_stack_params(needThis, parameters, scope, desc);
}
private void call_vm_caller_stack_params(boolean needThis, List parameters, Scope scope,
String desc) {
int calleeLocalsIndex = 0;
if (needThis)
calleeLocalsIndex++;
for (int i = 0; i < parameters.size(); i++) {
VariableReference p = parameters.get(i);
calleeLocalsIndex += getSize(p.getType());
}
Type[] argTypes = Type.getArgumentTypes(desc);
for (int i = parameters.size() - 1; i >= 0; i--) {
Type argType = argTypes[i];
VariableReference p = parameters.get(i);
try {
Object param_object = p.getObject(scope);
calleeLocalsIndex -= getSize(p.getType());
if (argType.equals(Type.INT_TYPE)) {
int intValue = getIntValue(param_object);
VM.CALLER_STACK_PARAM(intValue, i, calleeLocalsIndex);
} else if (argType.equals(Type.CHAR_TYPE)) {
char charValue = getCharValue(param_object);
VM.CALLER_STACK_PARAM(charValue, i, calleeLocalsIndex);
} else if (argType.equals(Type.BYTE_TYPE)) {
byte byteValue = getByteValue(param_object);
VM.CALLER_STACK_PARAM(byteValue, i, calleeLocalsIndex);
} else if (argType.equals(Type.BOOLEAN_TYPE)) {
boolean booleanValue = getBooleanValue(param_object);
VM.CALLER_STACK_PARAM(booleanValue, i, calleeLocalsIndex);
} else if (argType.equals(Type.SHORT_TYPE)) {
short shortValue = getShortValue(param_object);
VM.CALLER_STACK_PARAM(shortValue, i, calleeLocalsIndex);
} else if (argType.equals(Type.LONG_TYPE)) {
long longValue = getLongValue(param_object);
VM.CALLER_STACK_PARAM(longValue, i, calleeLocalsIndex);
} else if (argType.equals(Type.FLOAT_TYPE)) {
float floatValue = getFloatValue(param_object);
VM.CALLER_STACK_PARAM(floatValue, i, calleeLocalsIndex);
} else if (argType.equals(Type.DOUBLE_TYPE)) {
double doubleValue = getDoubleValue(param_object);
VM.CALLER_STACK_PARAM(doubleValue, i, calleeLocalsIndex);
} else {
VM.CALLER_STACK_PARAM(param_object, i, calleeLocalsIndex);
}
} catch (CodeUnderTestException e) {
throw new RuntimeException(e);
}
}
}
private static double getDoubleValue(Object o) {
if (o == null) {
return 0;
}
if (o instanceof Boolean) {
return ((Boolean) o).booleanValue() ? 1 : 0;
} else if (o instanceof Short) {
return ((Short) o).shortValue();
} else if (o instanceof Byte) {
return ((Byte) o).byteValue();
} else if (o instanceof Character) {
return ((Character) o).charValue();
} else if (o instanceof Integer) {
return ((Integer) o).intValue();
} else if (o instanceof Long) {
return ((Long) o).longValue();
} else if (o instanceof Float) {
return ((Float) o).floatValue();
} else if (o instanceof Double) {
return ((Double) o).doubleValue();
} else {
throw new EvosuiteError("Unreachable code!");
}
}
private static float getFloatValue(Object o) {
if (o == null) {
return 0;
}
if (o instanceof Boolean) {
return ((Boolean) o).booleanValue() ? 1 : 0;
} else if (o instanceof Short) {
return ((Short) o).shortValue();
} else if (o instanceof Byte) {
return ((Byte) o).byteValue();
} else if (o instanceof Character) {
return ((Character) o).charValue();
} else if (o instanceof Integer) {
return ((Integer) o).intValue();
} else if (o instanceof Long) {
return ((Long) o).longValue();
} else if (o instanceof Float) {
return ((Float) o).floatValue();
} else if (o instanceof Double) {
return (float) ((Double) o).doubleValue();
} else {
throw new EvosuiteError("Unreachable code!");
}
}
private static long getLongValue(Object o) {
if (o == null) {
return 0;
}
if (o instanceof Boolean) {
return ((Boolean) o).booleanValue() ? 1 : 0;
} else if (o instanceof Short) {
return ((Short) o).shortValue();
} else if (o instanceof Byte) {
return ((Byte) o).byteValue();
} else if (o instanceof Character) {
return ((Character) o).charValue();
} else if (o instanceof Integer) {
return ((Integer) o).intValue();
} else if (o instanceof Long) {
return ((Long) o).longValue();
} else if (o instanceof Float) {
return (long) ((Float) o).floatValue();
} else if (o instanceof Double) {
return (long) ((Double) o).doubleValue();
} else {
throw new EvosuiteError("Unreachable code!");
}
}
private static int getIntValue(Object o) {
if (o == null) {
return 0;
}
if (o instanceof Boolean) {
return ((Boolean) o).booleanValue() ? 1 : 0;
} else if (o instanceof Short) {
return ((Short) o).shortValue();
} else if (o instanceof Byte) {
return ((Byte) o).byteValue();
} else if (o instanceof Character) {
return ((Character) o).charValue();
} else if (o instanceof Integer) {
return ((Integer) o).intValue();
} else if (o instanceof Long) {
return (int) ((Long) o).longValue();
} else if (o instanceof Float) {
return (int) ((Float) o).floatValue();
} else if (o instanceof Double) {
return (int) ((Double) o).doubleValue();
} else {
throw new EvosuiteError("Unreachable code!");
}
}
private static short getShortValue(Object o) {
if (o == null) {
return 0;
}
if (o instanceof Boolean) {
return (short) (((Boolean) o).booleanValue() ? 1 : 0);
} else if (o instanceof Short) {
return ((Short) o).shortValue();
} else if (o instanceof Byte) {
return ((Byte) o).byteValue();
} else if (o instanceof Character) {
return (short) ((Character) o).charValue();
} else if (o instanceof Integer) {
return (short) ((Integer) o).intValue();
} else if (o instanceof Long) {
return (short) ((Long) o).longValue();
} else if (o instanceof Float) {
return (short) ((Float) o).floatValue();
} else if (o instanceof Double) {
return (short) ((Double) o).doubleValue();
} else {
throw new EvosuiteError("Unreachable code!");
}
}
private static byte getByteValue(Object o) {
if (o == null) {
return 0;
}
if (o instanceof Boolean) {
return (byte) (((Boolean) o).booleanValue() ? 1 : 0);
} else if (o instanceof Short) {
return (byte) ((Short) o).shortValue();
} else if (o instanceof Byte) {
return ((Byte) o).byteValue();
} else if (o instanceof Character) {
return (byte) ((Character) o).charValue();
} else if (o instanceof Integer) {
return (byte) ((Integer) o).intValue();
} else if (o instanceof Long) {
return (byte) ((Long) o).longValue();
} else if (o instanceof Float) {
return (byte) ((Float) o).floatValue();
} else if (o instanceof Double) {
return (byte) ((Double) o).doubleValue();
} else {
throw new EvosuiteError("Unreachable code!");
}
}
private static char getCharValue(Object o) {
if (o == null) {
return 0;
}
if (o instanceof Boolean) {
return (char) (((Boolean) o).booleanValue() ? 1 : 0);
} else if (o instanceof Short) {
return (char) ((Short) o).shortValue();
} else if (o instanceof Byte) {
return (char) ((Byte) o).byteValue();
} else if (o instanceof Character) {
return ((Character) o).charValue();
} else if (o instanceof Integer) {
return (char) ((Integer) o).intValue();
} else if (o instanceof Long) {
return (char) ((Long) o).longValue();
} else if (o instanceof Float) {
return (char) ((Float) o).floatValue();
} else if (o instanceof Double) {
return (char) ((Double) o).doubleValue();
} else {
throw new EvosuiteError("Unreachable code!");
}
}
private static boolean getBooleanValue(Object o) {
if (o == null) {
return false;
}
if (o instanceof Boolean) {
return ((Boolean) o).booleanValue();
} else if (o instanceof Short) {
return ((Short) o).shortValue() == 1;
} else if (o instanceof Byte) {
return ((Byte) o).byteValue() == 1;
} else if (o instanceof Character) {
return ((Character) o).charValue() == 1;
} else if (o instanceof Integer) {
return ((Integer) o).intValue() == 1;
} else if (o instanceof Long) {
return ((Long) o).longValue() == 1;
} else if (o instanceof Float) {
return ((Float) o).floatValue() == 1;
} else if (o instanceof Double) {
return ((Double) o).doubleValue() == 1;
} else {
throw new EvosuiteError("Unreachable code!");
}
}
private int getSize(java.lang.reflect.Type type) {
if (type.equals(double.class))
return 2;
else if (type.equals(long.class))
return 2;
else
return 1;
}
private void pushParameterList(List parameters, Scope scope, String desc) {
Type[] argTypes = Type.getArgumentTypes(desc);
for (int i = 0; i < parameters.size(); i++) {
VariableReference varRef = parameters.get(i);
Type argType = argTypes[i];
ReferenceExpressionPair readResult = this.read(varRef, scope);
Expression symb_expr = readResult.getExpression();
ReferenceExpression symb_ref = readResult.getReference();
if (isValue(argType)) {
if (symb_expr instanceof RealValue) {
RealValue realExpr = (RealValue) symb_expr;
if (isFp32(argType)) {
env.topFrame().operandStack.pushFp32(realExpr);
} else if (isFp64(argType)) {
env.topFrame().operandStack.pushFp64(realExpr);
} else if (isBv32(argType)) {
int concV = realExpr.getConcreteValue().intValue();
RealToIntegerCast castExpr = new RealToIntegerCast(realExpr, (long) concV);
env.topFrame().operandStack.pushBv32(castExpr);
} else if (isBv64(argType)) {
long concV = realExpr.getConcreteValue().longValue();
RealToIntegerCast castExpr = new RealToIntegerCast(realExpr, concV);
env.topFrame().operandStack.pushBv64(castExpr);
} else {
/* unreachable code */
}
} else if (symb_expr instanceof IntegerValue) {
IntegerValue integerExpr = (IntegerValue) symb_expr;
if (isBv32(argType)) {
env.topFrame().operandStack.pushBv32(integerExpr);
} else if (isBv64(argType)) {
env.topFrame().operandStack.pushBv64(integerExpr);
} else if (isFp32(argType)) {
float concV = integerExpr.getConcreteValue().floatValue();
IntegerToRealCast castExpr = new IntegerToRealCast(integerExpr, (double) concV);
env.topFrame().operandStack.pushFp32(castExpr);
} else if (isFp64(argType)) {
double concV = integerExpr.getConcreteValue().doubleValue();
IntegerToRealCast castExpr = new IntegerToRealCast(integerExpr, concV);
env.topFrame().operandStack.pushFp64(castExpr);
} else {
/* unreachable code */
}
} else {
if (symb_ref.getConcreteValue() == null) {
// although this will lead in the JVM to a NPE, we push
// a dummy
// value to prevent the DSE VM from crashing
pushDummyValue(argType);
} else {
// auto unboxing reference
ReferenceConstant non_null_symb_ref = (ReferenceConstant) symb_ref;
Object conc_object = scope.getObject(varRef);
Expression unboxed_expr = unboxReference(argType, conc_object, non_null_symb_ref);
pushValue(argType, unboxed_expr);
}
}
} else {
ReferenceExpression ref = readResult.getReference();
env.topFrame().operandStack.pushRef(ref);
}
}
}
private Expression unboxReference(Type argType, Object conc_object, ReferenceConstant non_null_symb_ref) {
switch (argType.getSort()) {
case Type.BOOLEAN: {
Expression symb_expr = env.heap.getField(Types.JAVA_LANG_BOOLEAN, SymbolicHeap.$BOOLEAN_VALUE,
conc_object, non_null_symb_ref);
return symb_expr;
}
case Type.BYTE: {
Expression symb_expr = env.heap.getField(Types.JAVA_LANG_BYTE, SymbolicHeap.$BYTE_VALUE, conc_object,
non_null_symb_ref);
return symb_expr;
}
case Type.CHAR: {
Expression symb_expr = env.heap.getField(Types.JAVA_LANG_CHARACTER, SymbolicHeap.$CHAR_VALUE,
conc_object, non_null_symb_ref);
return symb_expr;
}
case Type.DOUBLE: {
Expression symb_expr = env.heap.getField(Types.JAVA_LANG_DOUBLE, SymbolicHeap.$DOUBLE_VALUE, conc_object,
non_null_symb_ref);
return symb_expr;
}
case Type.FLOAT: {
Expression symb_expr = env.heap.getField(Types.JAVA_LANG_FLOAT, SymbolicHeap.$FLOAT_VALUE, conc_object,
non_null_symb_ref);
return symb_expr;
}
case Type.INT: {
Expression symb_expr = env.heap.getField(Types.JAVA_LANG_INTEGER, SymbolicHeap.$INT_VALUE, conc_object,
non_null_symb_ref);
return symb_expr;
}
case Type.LONG: {
Expression symb_expr = env.heap.getField(Types.JAVA_LANG_LONG, SymbolicHeap.$LONG_VALUE, conc_object,
non_null_symb_ref);
return symb_expr;
}
case Type.SHORT: {
Expression symb_expr = env.heap.getField(Types.JAVA_LANG_SHORT, SymbolicHeap.$SHORT_VALUE, conc_object,
non_null_symb_ref);
return symb_expr;
}
default: {
throw new EvosuiteError(argType.toString() + " cannot be automatically unboxed");
}
}
}
private void pushValue(Type argType, Expression symb_expr) {
if (isBv32(argType)) {
IntegerValue booleanExpr = (IntegerValue) symb_expr;
env.topFrame().operandStack.pushBv32(booleanExpr);
} else if (isBv64(argType)) {
IntegerValue longExpr = (IntegerValue) symb_expr;
env.topFrame().operandStack.pushBv64(longExpr);
} else if (isFp32(argType)) {
RealValue realExpr = (RealValue) symb_expr;
env.topFrame().operandStack.pushFp32(realExpr);
} else if (isFp64(argType)) {
RealValue realExpr = (RealValue) symb_expr;
env.topFrame().operandStack.pushFp64(realExpr);
} else {
throw new EvosuiteError(argType.toString() + " is not a value type!");
}
}
private void pushDummyValue(Type argType) {
if (isBv32(argType)) {
IntegerValue integerExpr = ExpressionFactory.buildNewIntegerConstant(0);
env.topFrame().operandStack.pushBv32(integerExpr);
} else if (isBv64(argType)) {
IntegerValue integerExpr = ExpressionFactory.buildNewIntegerConstant(0);
env.topFrame().operandStack.pushBv64(integerExpr);
} else if (isFp32(argType)) {
RealValue realExpr = ExpressionFactory.buildNewRealConstant(0);
env.topFrame().operandStack.pushFp32(realExpr);
} else if (isFp64(argType)) {
RealValue realExpr = ExpressionFactory.buildNewRealConstant(0);
env.topFrame().operandStack.pushFp64(realExpr);
} else {
throw new EvosuiteError(argType.toString() + " is not a value type!");
}
}
private static boolean isValue(Type t) {
return isBv32(t) || isBv64(t) || isFp32(t) || isFp64(t);
}
private static boolean isFp64(Type t) {
return t.equals(Type.DOUBLE_TYPE);
}
private static boolean isFp32(Type t) {
return t.equals(Type.FLOAT_TYPE);
}
private static boolean isBv64(Type t) {
return t.equals(Type.LONG_TYPE);
}
private static boolean isBv32(Type t) {
return t.equals(Type.CHAR_TYPE) || t.equals(Type.BOOLEAN_TYPE) || t.equals(Type.SHORT_TYPE)
|| t.equals(Type.BYTE_TYPE) || t.equals(Type.INT_TYPE);
}
/**
* This method forbids using the same interning String in two separate
* string primitive statements.
*
* @param statement
* @param scope
*/
private void before(StringPrimitiveStatement statement, Scope scope) {
/* do nothing */
}
private void before(FileNamePrimitiveStatement statement, Scope scope) {
/* do nothing */
}
private void before(LocalAddressPrimitiveStatement statement, Scope scope) {
/* do nothing */
}
private void before(RemoteAddressPrimitiveStatement statement, Scope scope) {
/* do nothing */
}
private void before(UrlPrimitiveStatement statement, Scope scope) {
/* do nothing */
}
private void before(FunctionalMockStatement statement, Scope scope) {
/* do nothing */
}
private void before(IntPrimitiveStatement statement, Scope scope) {
/* do nothing */
}
@Override
public void afterStatement(Statement s, Scope scope, Throwable exception) {
if (exception != null) {
return;
}
if (VM.getInstance().isStopped()) {
return;
}
try {
if (s instanceof NullStatement) {
after((NullStatement) s, scope);
} else if (s instanceof EnumPrimitiveStatement) {
after((EnumPrimitiveStatement) s, scope);
} else if (s instanceof ArrayStatement) {
after((ArrayStatement) s, scope);
} else if (s instanceof AssignmentStatement) {
after((AssignmentStatement) s, scope);
} else if (s instanceof FieldStatement) {
after((FieldStatement) s, scope);
} else if (s instanceof ConstructorStatement) {
after((ConstructorStatement) s, scope);
}
/* primitive statements */
else if (s instanceof BooleanPrimitiveStatement) {
after((BooleanPrimitiveStatement) s, scope);
} else if (s instanceof MethodStatement) {
after((MethodStatement) s, scope);
} else if (s instanceof BytePrimitiveStatement) {
after((BytePrimitiveStatement) s, scope);
} else if (s instanceof CharPrimitiveStatement) {
after((CharPrimitiveStatement) s, scope);
} else if (s instanceof DoublePrimitiveStatement) {
after((DoublePrimitiveStatement) s, scope);
} else if (s instanceof FloatPrimitiveStatement) {
after((FloatPrimitiveStatement) s, scope);
} else if (s instanceof IntPrimitiveStatement) {
after((IntPrimitiveStatement) s, scope);
} else if (s instanceof LongPrimitiveStatement) {
after((LongPrimitiveStatement) s, scope);
} else if (s instanceof ShortPrimitiveStatement) {
after((ShortPrimitiveStatement) s, scope);
} else if (s instanceof StringPrimitiveStatement) {
after((StringPrimitiveStatement) s, scope);
} else if (s instanceof ClassPrimitiveStatement) {
after((ClassPrimitiveStatement) s, scope);
} else if (s instanceof FileNamePrimitiveStatement) {
after((FileNamePrimitiveStatement) s, scope);
} else if (s instanceof LocalAddressPrimitiveStatement) {
after((LocalAddressPrimitiveStatement) s, scope);
} else if (s instanceof RemoteAddressPrimitiveStatement) {
after((RemoteAddressPrimitiveStatement) s, scope);
} else if (s instanceof UrlPrimitiveStatement) {
after((UrlPrimitiveStatement) s, scope);
} else if (s instanceof PrimitiveExpression) {
after((PrimitiveExpression) s, scope);
} else if (s instanceof FunctionalMockStatement) {
after((FunctionalMockStatement) s, scope);
} else {
throw new UnsupportedOperationException("Cannot handle statement of type " + s.getClass());
}
} catch (Throwable t) {
throw new EvosuiteError(t);
}
}
private void after(UrlPrimitiveStatement s, Scope scope) {
EvoSuiteURL conc_url = s.getValue();
VariableReference varRef = s.getReturnValue();
String varRefName = varRef.getName();
ReferenceExpression urlRef;
if (conc_url == null) {
urlRef = env.heap.getReference(null);
if (urlRef.getConcreteValue() != null) {
throw new IllegalStateException("Expected null concrete value");
}
} else {
urlRef = (ReferenceConstant) env.heap.getReference(conc_url);
if (urlRef.getConcreteValue() == null) {
throw new IllegalStateException("Expected non-null concrete value");
}
}
symb_references.put(varRefName, urlRef);
}
private void after(RemoteAddressPrimitiveStatement s, Scope scope) {
EvoSuiteRemoteAddress conc_remote_address = s.getValue();
VariableReference varRef = s.getReturnValue();
String varRefName = varRef.getName();
ReferenceExpression addressRef;
if (conc_remote_address == null) {
addressRef = env.heap.getReference(null);
if (addressRef.getConcreteValue() != null) {
throw new IllegalStateException("Expected null concrete value");
}
} else {
addressRef = env.heap.getReference(conc_remote_address);
if (addressRef.getConcreteValue() == null) {
throw new IllegalStateException("Expected non-null concrete value");
}
}
symb_references.put(varRefName, addressRef);
}
private void after(LocalAddressPrimitiveStatement s, Scope scope) {
EvoSuiteLocalAddress conc_local_address = s.getValue();
VariableReference varRef = s.getReturnValue();
String varRefName = varRef.getName();
ReferenceExpression addressRef;
if (conc_local_address == null) {
addressRef = env.heap.getReference(null);
if (addressRef.getConcreteValue() != null) {
throw new IllegalStateException("Expected null concrete object");
}
} else {
addressRef = env.heap.getReference(conc_local_address);
if (addressRef.getConcreteValue() == null) {
throw new IllegalStateException("Expected non-null concrete object");
}
}
symb_references.put(varRefName, addressRef);
}
private void after(PrimitiveExpression s, Scope scope) {
// TODO Auto-generated method stub
throw new UnsupportedOperationException("This method should be implemented!");
}
private void after(ClassPrimitiveStatement s, Scope scope) {
VariableReference varRef = s.getReturnValue();
Class concrete_reference = s.getValue();
String varName = varRef.getName();
ReferenceExpression symb_ref = env.heap.getReference(concrete_reference);
symb_references.put(varName, symb_ref);
}
private void before(ArrayStatement s, Scope scope) {
/* do nothing */
}
private void after(EnumPrimitiveStatement s, Scope scope) {
VariableReference varRef = s.getReturnValue();
String varName = varRef.getName();
Object conc_value = s.getValue();
ReferenceExpression symb_value = env.heap.getReference(conc_value);
symb_references.put(varName, symb_value);
}
private void after(NullStatement s, Scope scope) {
VariableReference lhs = s.getReturnValue();
String lhs_name = lhs.getName();
ReferenceExpression nullConstant = ExpressionFactory.buildNewNullExpression();
symb_references.put(lhs_name, nullConstant);
}
private void after(FunctionalMockStatement statement, Scope scope) {
Type returnType = Type.getType(statement.getReturnClass());
VariableReference varRef = statement.getReturnValue();
String varName = varRef.getName();
try {
if (varRef.getType().equals(void.class)) {
} else if (returnType.equals(Type.INT_TYPE) || returnType.equals(Type.BOOLEAN_TYPE)
|| returnType.equals(Type.DOUBLE_TYPE) || returnType.equals(Type.FLOAT_TYPE)
|| returnType.equals(Type.LONG_TYPE) || returnType.equals(Type.SHORT_TYPE)
|| returnType.equals(Type.BYTE_TYPE) || returnType.equals(Type.CHAR_TYPE)) {
throw new EvosuiteError("mocking of primitive types is not supported!");
} else {
Object res = varRef.getObject(scope);
ReferenceExpression ref = env.heap.getReference(res);
if (res != null && res instanceof String) {
String string = (String) res;
ReferenceConstant newStringRef = (ReferenceConstant) env.heap.getReference(string);
StringValue str_expr = env.heap.getField(Types.JAVA_LANG_STRING, SymbolicHeap.$STRING_VALUE, string,
newStringRef, string);
symb_references.put(varName, newStringRef);
symb_expressions.put(varName, str_expr);
} else {
symb_references.put(varName, ref);
if (res != null && isWrapper(res)) {
ReferenceConstant nonNullRef = (ReferenceConstant) ref;
Expression expr = findOrCreate(res, nonNullRef);
symb_expressions.put(varName, expr);
}
}
}
} catch (CodeUnderTestException e) {
throw new RuntimeException(e);
}
}
private void after(FieldStatement s, Scope scope) {
ReferenceExpressionPair readResult;
if (s.getSource() != null) {
readResult = readInstanceField(s.getSource(), s.getField().getField(), scope);
} else {
readResult = readStaticField(s.getField().getField());
}
String lhs_name = s.getReturnValue().getName();
Expression expr = readResult.getExpression();
ReferenceExpression ref = readResult.getReference();
if (expr != null)
symb_expressions.put(lhs_name, expr);
if (ref != null)
symb_references.put(lhs_name, ref);
}
private void after(ShortPrimitiveStatement statement, Scope scope) {
short valueOf = statement.getValue();
VariableReference varRef = statement.getReturnValue();
String varRefName = varRef.getName();
IntegerVariable integerVariable = buildIntegerVariable(varRefName, valueOf, Short.MIN_VALUE, Short.MAX_VALUE);
symb_expressions.put(varRefName, integerVariable);
Short short_instance;
try {
short_instance = (Short) varRef.getObject(scope);
} catch (CodeUnderTestException e) {
throw new EvosuiteError(e);
}
ReferenceConstant shortRef = newShortReference(short_instance, integerVariable);
symb_references.put(varRefName, shortRef);
}
private ReferenceConstant newShortReference(Short conc_short, IntegerValue symb_value) {
ReferenceConstant shortRef = (ReferenceConstant) env.heap.getReference(conc_short);
env.heap.putField(Types.JAVA_LANG_SHORT, SymbolicHeap.$SHORT_VALUE, conc_short, shortRef, symb_value);
return shortRef;
}
private void after(LongPrimitiveStatement statement, Scope scope) {
long valueOf = statement.getValue();
VariableReference varRef = statement.getReturnValue();
String varRefName = varRef.getName();
IntegerVariable integerVariable = buildIntegerVariable(varRefName, valueOf, Long.MIN_VALUE, Long.MAX_VALUE);
symb_expressions.put(varRefName, integerVariable);
Long long_instance;
try {
long_instance = (Long) varRef.getObject(scope);
} catch (CodeUnderTestException e) {
throw new EvosuiteError(e);
}
ReferenceConstant longRef = newLongReference(long_instance, integerVariable);
symb_references.put(varRefName, longRef);
}
private ReferenceConstant newLongReference(Long conc_long, IntegerValue symb_value) {
ReferenceConstant longRef = (ReferenceConstant) env.heap.getReference(conc_long);
env.heap.putField(Types.JAVA_LANG_LONG, SymbolicHeap.$LONG_VALUE, conc_long, longRef, symb_value);
return longRef;
}
private void after(FloatPrimitiveStatement statement, Scope scope) {
float valueOf = statement.getValue();
VariableReference varRef = statement.getReturnValue();
String varRefName = varRef.getName();
RealVariable realVariable = buildRealVariable(varRefName, valueOf, -Float.MAX_VALUE, Float.MAX_VALUE);
symb_expressions.put(varRefName, realVariable);
Float float_instance;
try {
float_instance = (Float) varRef.getObject(scope);
} catch (CodeUnderTestException e) {
throw new EvosuiteError(e);
}
ReferenceConstant floatRef = newFloatReference(float_instance, realVariable);
symb_references.put(varRefName, floatRef);
}
private ReferenceConstant newFloatReference(Float conc_float, RealValue symb_value) {
ReferenceConstant floatRef = (ReferenceConstant) env.heap.getReference(conc_float);
env.heap.putField(Types.JAVA_LANG_FLOAT, SymbolicHeap.$FLOAT_VALUE, conc_float, floatRef, symb_value);
return floatRef;
}
private void after(CharPrimitiveStatement statement, Scope scope) {
char valueOf = statement.getValue();
VariableReference varRef = statement.getReturnValue();
String varRefName = varRef.getName();
IntegerVariable integerVariable = buildIntegerVariable(varRefName, valueOf, Character.MIN_VALUE,
Character.MAX_VALUE);
symb_expressions.put(varRefName, integerVariable);
Character character0;
try {
character0 = (Character) varRef.getObject(scope);
} catch (CodeUnderTestException e) {
throw new EvosuiteError(e);
}
ReferenceConstant charRef = newCharacterReference(character0, integerVariable);
symb_references.put(varRefName, charRef);
}
private ReferenceConstant newCharacterReference(Character conc_char, IntegerValue symb_value) {
ReferenceConstant charRef = (ReferenceConstant) env.heap.getReference(conc_char);
env.heap.putField(Types.JAVA_LANG_CHARACTER, SymbolicHeap.$CHAR_VALUE, conc_char, charRef, symb_value);
return charRef;
}
private void after(BytePrimitiveStatement statement, Scope scope) {
byte valueOf = statement.getValue();
VariableReference varRef = statement.getReturnValue();
String varRefName = varRef.getName();
IntegerVariable integerVariable = buildIntegerVariable(varRefName, valueOf, Byte.MIN_VALUE, Byte.MAX_VALUE);
symb_expressions.put(varRefName, integerVariable);
Byte byte_instance;
try {
byte_instance = (Byte) varRef.getObject(scope);
} catch (CodeUnderTestException e) {
throw new EvosuiteError(e);
}
ReferenceConstant byteRef = newByteReference(byte_instance, integerVariable);
symb_references.put(varRefName, byteRef);
}
private ReferenceConstant newByteReference(Byte conc_byte, IntegerValue symb_value) {
ReferenceConstant byteRef = (ReferenceConstant) env.heap.getReference(conc_byte);
env.heap.putField(Types.JAVA_LANG_BYTE, SymbolicHeap.$BYTE_VALUE, conc_byte, byteRef, symb_value);
return byteRef;
}
private void after(BooleanPrimitiveStatement statement, Scope scope) {
boolean valueOf = statement.getValue();
VariableReference varRef = statement.getReturnValue();
String varRefName = varRef.getName();
IntegerVariable integerVariable = buildIntegerVariable(varRefName, valueOf ? 1 : 0, 0, 1);
Boolean boolean_instance;
try {
boolean_instance = (Boolean) varRef.getObject(scope);
} catch (CodeUnderTestException e) {
throw new EvosuiteError(e);
}
symb_expressions.put(varRefName, integerVariable);
ReferenceConstant booleanRef = newBooleanReference(boolean_instance, integerVariable);
symb_references.put(varRefName, booleanRef);
}
private ReferenceConstant newBooleanReference(Boolean conc_boolean, IntegerValue symb_value) {
ReferenceConstant booleanRef = (ReferenceConstant) env.heap.getReference(conc_boolean);
env.heap.putField(Types.JAVA_LANG_BOOLEAN, SymbolicHeap.$BOOLEAN_VALUE, conc_boolean, booleanRef, symb_value);
return booleanRef;
}
private void after(DoublePrimitiveStatement statement, Scope scope) {
double valueOf = statement.getValue();
VariableReference varRef = statement.getReturnValue();
String varRefName = varRef.getName();
RealVariable realVariable = buildRealVariable(varRefName, valueOf, -Double.MAX_VALUE, Double.MAX_VALUE);
symb_expressions.put(varRefName, realVariable);
Double double_instance;
try {
double_instance = (Double) varRef.getObject(scope);
} catch (CodeUnderTestException e) {
throw new EvosuiteError(e);
}
ReferenceConstant doubleRef = newDoubleReference(double_instance, realVariable);
symb_references.put(varRefName, doubleRef);
}
private ReferenceConstant newDoubleReference(Double conc_double, RealValue symb_value) {
ReferenceConstant doubleRef = (ReferenceConstant) env.heap.getReference(conc_double);
env.heap.putField(Types.JAVA_LANG_DOUBLE, SymbolicHeap.$DOUBLE_VALUE, conc_double, doubleRef, symb_value);
return doubleRef;
}
private void after(MethodStatement statement, Scope scope) {
String owner = statement.getMethod().getDeclaringClass().getName().replace('.', '/');
String name = statement.getMethod().getName();
String desc = Type.getMethodDescriptor(statement.getMethod().getMethod());
Type returnType = Type.getReturnType(statement.getMethod().getMethod());
VariableReference varRef = statement.getReturnValue();
String varName = varRef.getName();
try {
if (varRef.getType().equals(void.class)) {
VM.CALL_RESULT(owner, name, desc);
} else if (returnType.equals(Type.INT_TYPE)) {
Integer res = (Integer) varRef.getObject(scope);
VM.CALL_RESULT(res.intValue(), owner, name, desc);
IntegerValue intExpr = env.topFrame().operandStack.popBv32();
ReferenceConstant newIntegerRef = newIntegerReference(res, intExpr);
symb_references.put(varName, newIntegerRef);
symb_expressions.put(varName, intExpr);
} else if (returnType.equals(Type.BOOLEAN_TYPE)) {
Boolean res = (Boolean) varRef.getObject(scope);
VM.CALL_RESULT(res.booleanValue(), owner, name, desc);
IntegerValue intExpr = env.topFrame().operandStack.popBv32();
ReferenceConstant newBooleanRef = newBooleanReference(res, intExpr);
symb_references.put(varName, newBooleanRef);
symb_expressions.put(varName, intExpr);
} else if (returnType.equals(Type.DOUBLE_TYPE)) {
Double res = (Double) varRef.getObject(scope);
VM.CALL_RESULT(res.doubleValue(), owner, name, desc);
RealValue realExpr = env.topFrame().operandStack.popFp64();
ReferenceConstant newDoubleRef = newDoubleReference(res, realExpr);
symb_references.put(varName, newDoubleRef);
symb_expressions.put(varName, realExpr);
} else if (returnType.equals(Type.FLOAT_TYPE)) {
Float res = (Float) varRef.getObject(scope);
VM.CALL_RESULT(res.floatValue(), owner, name, desc);
RealValue realExpr = env.topFrame().operandStack.popFp32();
ReferenceConstant newFloatRef = newFloatReference(res, realExpr);
symb_references.put(varName, newFloatRef);
symb_expressions.put(varName, realExpr);
} else if (returnType.equals(Type.LONG_TYPE)) {
Long res = (Long) varRef.getObject(scope);
VM.CALL_RESULT(res.longValue(), owner, name, desc);
IntegerValue intExpr = env.topFrame().operandStack.popBv64();
ReferenceConstant newBooleanRef = newLongReference(res, intExpr);
symb_references.put(varName, newBooleanRef);
symb_expressions.put(varName, intExpr);
} else if (returnType.equals(Type.SHORT_TYPE)) {
Short res = (Short) varRef.getObject(scope);
VM.CALL_RESULT(res.shortValue(), owner, name, desc);
IntegerValue intExpr = env.topFrame().operandStack.popBv32();
ReferenceConstant newShortRef = newShortReference(res, intExpr);
symb_references.put(varName, newShortRef);
symb_expressions.put(varName, intExpr);
} else if (returnType.equals(Type.BYTE_TYPE)) {
Byte res = (Byte) varRef.getObject(scope);
VM.CALL_RESULT(res.byteValue(), owner, name, desc);
IntegerValue intExpr = env.topFrame().operandStack.popBv32();
ReferenceConstant newByteRef = newByteReference(res, intExpr);
symb_references.put(varName, newByteRef);
symb_expressions.put(varName, intExpr);
} else if (returnType.equals(Type.CHAR_TYPE)) {
Character res = (Character) varRef.getObject(scope);
VM.CALL_RESULT(res.charValue(), owner, name, desc);
IntegerValue intExpr = env.topFrame().operandStack.popBv32();
ReferenceConstant newCharacterRef = newCharacterReference(res, intExpr);
symb_references.put(varName, newCharacterRef);
symb_expressions.put(varName, intExpr);
} else {
Object res = varRef.getObject(scope);
VM.CALL_RESULT(res, owner, name, desc);
ReferenceExpression ref = env.topFrame().operandStack.peekRef();
if (res != null && res instanceof String) {
String string = (String) res;
ReferenceConstant newStringRef = (ReferenceConstant) env.heap.getReference(string);
StringValue str_expr = env.heap.getField(Types.JAVA_LANG_STRING, SymbolicHeap.$STRING_VALUE, string,
newStringRef, string);
symb_references.put(varName, newStringRef);
symb_expressions.put(varName, str_expr);
} else {
symb_references.put(varName, ref);
if (res != null && isWrapper(res)) {
ReferenceConstant nonNullRef = (ReferenceConstant) ref;
Expression expr = findOrCreate(res, nonNullRef);
symb_expressions.put(varName, expr);
}
}
}
} catch (CodeUnderTestException e) {
throw new RuntimeException(e);
}
// dispose all other arguments
env.topFrame().operandStack.clearOperands();
}
private Expression findOrCreate(Object conc_ref, ReferenceConstant symb_ref) {
if (conc_ref instanceof Boolean) {
Boolean boolean0 = (Boolean) conc_ref;
int conc_val = boolean0.booleanValue() ? 1 : 0;
return env.heap.getField(Types.JAVA_LANG_BOOLEAN, SymbolicHeap.$BOOLEAN_VALUE, boolean0, symb_ref,
conc_val);
} else if (conc_ref instanceof Byte) {
Byte byte0 = (Byte) conc_ref;
byte conc_val = byte0.byteValue();
return env.heap.getField(Types.JAVA_LANG_BYTE, SymbolicHeap.$BYTE_VALUE, byte0, symb_ref, conc_val);
} else if (conc_ref instanceof Short) {
Short short0 = (Short) conc_ref;
short conc_val = short0.shortValue();
return env.heap.getField(Types.JAVA_LANG_SHORT, SymbolicHeap.$SHORT_VALUE, short0, symb_ref, conc_val);
} else if (conc_ref instanceof Character) {
Character character0 = (Character) conc_ref;
char conc_val = character0.charValue();
return env.heap.getField(Types.JAVA_LANG_CHARACTER, SymbolicHeap.$CHAR_VALUE, character0, symb_ref,
conc_val);
} else if (conc_ref instanceof Integer) {
Integer integer0 = (Integer) conc_ref;
int conc_val = integer0.intValue();
return env.heap.getField(Types.JAVA_LANG_INTEGER, SymbolicHeap.$INT_VALUE, integer0, symb_ref, conc_val);
} else if (conc_ref instanceof Long) {
Long long0 = (Long) conc_ref;
long conc_val = long0.longValue();
return env.heap.getField(Types.JAVA_LANG_LONG, SymbolicHeap.$LONG_VALUE, long0, symb_ref, conc_val);
} else if (conc_ref instanceof Float) {
Float float0 = (Float) conc_ref;
float conc_val = float0.floatValue();
return env.heap.getField(Types.JAVA_LANG_FLOAT, SymbolicHeap.$FLOAT_VALUE, float0, symb_ref, conc_val);
} else if (conc_ref instanceof Double) {
Double double0 = (Double) conc_ref;
double conc_val = double0.doubleValue();
return env.heap.getField(Types.JAVA_LANG_FLOAT, SymbolicHeap.$DOUBLE_VALUE, double0, symb_ref, conc_val);
} else {
throw new EvosuiteError("Unreachable code!");
}
}
private static boolean isWrapper(Object res) {
return res instanceof Boolean || res instanceof Short || res instanceof Byte || res instanceof Integer
|| res instanceof Character || res instanceof Long || res instanceof Float || res instanceof Double;
}
private void after(StringPrimitiveStatement statement, Scope scope) {
String valueOf = statement.getValue();
VariableReference varRef = statement.getReturnValue();
String varRefName = varRef.getName();
StringVariable stringVariable = buildStringVariable(varRefName, valueOf);
symb_expressions.put(varRefName, stringVariable);
String string_instance;
try {
String string_interned = (String) varRef.getObject(scope);
string_instance = new String(string_interned);
scope.setObject(varRef, string_instance);
} catch (CodeUnderTestException e) {
throw new EvosuiteError(e);
}
ReferenceConstant stringRef = newStringReference(string_instance, stringVariable);
symb_references.put(varRefName, stringRef);
}
private void after(FileNamePrimitiveStatement statement, Scope scope) {
EvoSuiteFile conc_evosuite_file = statement.getValue();
VariableReference varRef = statement.getReturnValue();
String varRefName = varRef.getName();
ReferenceExpression fileRef;
if (conc_evosuite_file == null) {
fileRef = env.heap.getReference(null);
if (fileRef.getConcreteValue() != null) {
throw new IllegalStateException("Expected null concrete object");
}
} else {
fileRef = (ReferenceConstant) env.heap.getReference(conc_evosuite_file);
if (fileRef.getConcreteValue() == null) {
throw new IllegalStateException("Expected non-null concrete object");
}
}
symb_references.put(varRefName, fileRef);
}
private ReferenceConstant newStringReference(String conc_string, StringValue str_expr) {
ReferenceConstant stringRef = (ReferenceConstant) env.heap.getReference(conc_string);
env.heap.putField(Types.JAVA_LANG_STRING, SymbolicHeap.$STRING_VALUE, conc_string, stringRef, str_expr);
return stringRef;
}
private final Map> symb_expressions = new HashMap>();
private final Map symb_references = new HashMap();
private final Map integerVariables = new HashMap();
private final Map realVariables = new HashMap();
private final Map stringVariables = new HashMap();
private void after(IntPrimitiveStatement statement, Scope scope) {
int valueOf = statement.getValue();
VariableReference varRef = statement.getReturnValue();
String varRefName = varRef.getName();
IntegerVariable integerVariable = buildIntegerVariable(varRefName, valueOf, Integer.MIN_VALUE,
Integer.MAX_VALUE);
symb_expressions.put(varRefName, integerVariable);
Integer integer_instance;
try {
integer_instance = (Integer) varRef.getObject(scope);
} catch (CodeUnderTestException e) {
throw new EvosuiteError(e);
}
ReferenceConstant integerRef = newIntegerReference(integer_instance, integerVariable);
symb_references.put(varRefName, integerRef);
}
private ReferenceConstant newIntegerReference(Integer conc_integer, IntegerValue symb_value) {
ReferenceConstant integerRef = (ReferenceConstant) env.heap.getReference(conc_integer);
env.heap.putField(Types.JAVA_LANG_INTEGER, SymbolicHeap.$INT_VALUE, conc_integer, integerRef, symb_value);
return integerRef;
}
@Override
public void clear() {
symb_expressions.clear();
symb_references.clear();
}
private IntegerVariable buildIntegerVariable(String name, long conV, long minValue, long maxValue) {
IntegerVariable integerVariable;
if (integerVariables.containsKey(name)) {
integerVariable = integerVariables.get(name);
integerVariable.setConcreteValue(conV);
assert minValue == integerVariable.getMinValue();
assert maxValue == integerVariable.getMaxValue();
} else {
integerVariable = new IntegerVariable(name, conV, minValue, maxValue);
integerVariables.put(name, integerVariable);
}
return integerVariable;
}
private RealVariable buildRealVariable(String name, double conV, double minValue, double maxValue) {
RealVariable realVariable;
if (realVariables.containsKey(name)) {
realVariable = realVariables.get(name);
realVariable.setConcreteValue(conV);
assert minValue == realVariable.getMinValue();
assert maxValue == realVariable.getMaxValue();
} else {
realVariable = new RealVariable(name, conV, minValue, maxValue);
realVariables.put(name, realVariable);
}
return realVariable;
}
private StringVariable buildStringVariable(String name, String concVal) {
StringVariable stringVariable;
if (stringVariables.containsKey(name)) {
stringVariable = stringVariables.get(name);
stringVariable.setConcreteValue(concVal);
} else {
stringVariable = new StringVariable(name, concVal);
stringVariables.put(name, stringVariable);
}
return stringVariable;
}
@Override
public void testExecutionFinished(ExecutionResult r, Scope s) {
// do nothing
}
}
