org.evosuite.testcase.statements

Class ConstructorStatement

java.lang.Object

org.evosuite.testcase.statements.AbstractStatement

org.evosuite.testcase.statements.EntityWithParametersStatement

org.evosuite.testcase.statements.ConstructorStatement

All Implemented Interfaces:

Serializable, Statement

public class ConstructorStatement
extends EntityWithParametersStatement

This statement represents a constructor call

Author:

Gordon Fraser

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.evosuite.testcase.statements.AbstractStatement

AbstractStatement.Executer

Field Summary

Fields inherited from class org.evosuite.testcase.statements.EntityWithParametersStatement

annotations, parameterAnnotations, parameters

Fields inherited from class org.evosuite.testcase.statements.AbstractStatement

assertions, comment, logger, retval, tc

Constructor Summary

Constructors

Modifier	Constructor and Description
	ConstructorStatement(TestCase tc, GenericConstructor constructor, List<VariableReference> parameters) Constructor for ConstructorStatement.
	ConstructorStatement(TestCase tc, GenericConstructor constructor, VariableReference retvar, List<VariableReference> parameters) This constructor allows you to use an already existing VariableReference as retvar.
protected	ConstructorStatement(TestCase tc, GenericConstructor constructor, VariableReference retvar, List<VariableReference> parameters, boolean check) Constructor for ConstructorStatement.

Method Summary

Modifier and Type	Method and Description
void	changeClassLoader(ClassLoader loader) Class instances are bound to a class loader - if we want to reexecute a test on a different classloader we need to be able to change the class of the reflection object
Statement	copy(TestCase newTestCase, int offset) copy
boolean	equals(Object s) Equality check
Throwable	execute(Scope scope, PrintStream out) This method executes the statement under the given scope.
GenericConstructor	getAccessibleObject() Returns the accessibleObject which is used to generate this kind of statement E.g.
GenericConstructor	getConstructor() Getter for the field constructor.
Set<Class<?>>	getDeclaredExceptions() getDeclaredExceptions
String	getDeclaringClassName()
String	getDescriptor()
String	getMethodName()
int	getNumParameters() Retrieve the number of parameters of this statement
List<VariableReference>	getParameterReferences() getParameterReferences
static String	getReturnType(Class<?> clazz) getReturnType
int	hashCode() Generate hash code
boolean	isAccessible() Determine if the underlying reflection object is currently accessible
boolean	isAssignmentStatement() Returns true if this statement should be handled as an AssignmentStatement.
boolean	isValid() Various consistency checks.
boolean	mutate(TestCase test, TestFactory factory) Go through parameters of constructor call and apply local search
boolean	same(Statement s) Allows the comparing of Statements between TestCases.
void	setConstructor(GenericConstructor constructor) Setter for the field constructor.
String	toString()

Methods inherited from class org.evosuite.testcase.statements.EntityWithParametersStatement

getConstraints, getNumParametersOfType, getUniqueVariableReferences, getVariableReferences, isBounded, mutateParameter, replace, replaceParameterReference

Methods inherited from class org.evosuite.testcase.statements.AbstractStatement

addAssertion, addComment, clone, clone, copyAssertions, exceptionHandler, getAssertionCode, getAssertionReferences, getAssertions, getCode, getCode, getComment, getExceptionClass, getPosition, getReturnClass, getReturnType, getReturnValue, getTestCase, hasAssertions, isDeclaredException, isReflectionStatement, negate, references, removeAssertion, removeAssertions, setAssertions, setRetval

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ConstructorStatement

public ConstructorStatement(TestCase tc,
                            GenericConstructor constructor,
                            List<VariableReference> parameters)

Constructor for ConstructorStatement.

Parameters:

tc - a TestCase object.

constructor - a Constructor object.

parameters - a List object.

ConstructorStatement

public ConstructorStatement(TestCase tc,
                            GenericConstructor constructor,
                            VariableReference retvar,
                            List<VariableReference> parameters)

This constructor allows you to use an already existing VariableReference as retvar. This should only be done, iff an old statement is replaced with this statement. And already existing objects should in the future reference this object.

Parameters:

tc - a TestCase object.

constructor - a Constructor object.

retvar - a VariableReference object.

parameters - a List object.

ConstructorStatement

protected ConstructorStatement(TestCase tc,
                               GenericConstructor constructor,
                               VariableReference retvar,
                               List<VariableReference> parameters,
                               boolean check)

Constructor for ConstructorStatement.

Parameters:

tc - a TestCase object.

constructor - a Constructor object.

retvar - a VariableReference object.

parameters - a List object.

check - a boolean.

Method Detail

getConstructor

public GenericConstructor getConstructor()

Getter for the field constructor.

Returns:

a Constructor object.

setConstructor

public void setConstructor(GenericConstructor constructor)

Setter for the field constructor.

Parameters:

constructor - a Constructor object.

getReturnType

public static String getReturnType(Class<?> clazz)

getReturnType

Parameters:

clazz - a Class object.

Returns:

a String object.

execute

public Throwable execute(Scope scope,
                         PrintStream out)
                  throws InvocationTargetException,
                         IllegalArgumentException,
                         InstantiationException,
                         IllegalAccessException

This method executes the statement under the given scope. If execution of the statement is aborted abnormally (i.e. an exception is thrown.) The exception is returned. Otherwise the return value is null.

Parameters:

scope - the scope under which the statement is executed

out - a PrintStream object.

Returns:

if an exception was thrown during execution this is the exception

Throws:

InvocationTargetException - if any.

IllegalArgumentException - if any.

InstantiationException - if any.

IllegalAccessException - if any.

copy

public Statement copy(TestCase newTestCase,
                      int offset)

copy

Parameters:

newTestCase - the testcase in which this statement will be inserted

offset - a int.

Returns:

a Statement object.

getParameterReferences

public List<VariableReference> getParameterReferences()

getParameterReferences

Overrides:

getParameterReferences in class EntityWithParametersStatement

Returns:

a List object.

getNumParameters

public int getNumParameters()

Description copied from interface: Statement

Retrieve the number of parameters of this statement

Specified by:

getNumParameters in interface Statement

Overrides:

getNumParameters in class EntityWithParametersStatement

Returns:

equals

public boolean equals(Object s)

Equality check

Specified by:

equals in interface Statement

Overrides:

equals in class Object

hashCode

public int hashCode()

Generate hash code

Specified by:

hashCode in interface Statement

Overrides:

hashCode in class Object

getDeclaredExceptions

public Set<Class<?>> getDeclaredExceptions()

getDeclaredExceptions

Specified by:

getDeclaredExceptions in interface Statement

Overrides:

getDeclaredExceptions in class AbstractStatement

Returns:

a Set object.

mutate

public boolean mutate(TestCase test,
                      TestFactory factory)

Go through parameters of constructor call and apply local search

Specified by:

mutate in interface Statement

Overrides:

mutate in class AbstractStatement

Parameters:

test -

factory -

Returns:

a boolean.

isAccessible

public boolean isAccessible()

Description copied from interface: Statement

Determine if the underlying reflection object is currently accessible

Specified by:

isAccessible in interface Statement

Overrides:

isAccessible in class AbstractStatement

Returns:

isValid

public boolean isValid()

Various consistency checks. This method might also return with an assertionError Functionality might depend on the status of enableAssertions in this JVM

Specified by:

isValid in interface Statement

Overrides:

isValid in class AbstractStatement

Returns:

a boolean.

same

public boolean same(Statement s)

Allows the comparing of Statements between TestCases. I.e. this is a more semantic comparison than the one done by equals. E.g. two Variable are equal if they are at the same position and they reference to objects of the same type.

Parameters:

s - a Statement object.

Returns:

a boolean.

getAccessibleObject

public GenericConstructor getAccessibleObject()

Returns the accessibleObject which is used to generate this kind of statement E.g. the Field of a FieldStatement, the Method of a MethodStatement and so on MAY return NULL (for example for NullStatements)

Returns:

a AccessibleObject object.

isAssignmentStatement

public boolean isAssignmentStatement()

Returns true if this statement should be handled as an AssignmentStatement. This method was added to allow the wrapping of AssignmentStatements (in which case "a instanceof AssignmentStatement" is no longer working)

Returns:

a boolean.

changeClassLoader

public void changeClassLoader(ClassLoader loader)

Class instances are bound to a class loader - if we want to reexecute a test on a different classloader we need to be able to change the class of the reflection object

Specified by:

changeClassLoader in interface Statement

Overrides:

changeClassLoader in class AbstractStatement

Parameters:

loader - a ClassLoader object.

toString

public String toString()

Overrides:

toString in class Object

getDescriptor

public String getDescriptor()

Specified by:

getDescriptor in class EntityWithParametersStatement

getDeclaringClassName

public String getDeclaringClassName()

Specified by:

getDeclaringClassName in class EntityWithParametersStatement

getMethodName

public String getMethodName()

Specified by:

getMethodName in class EntityWithParametersStatement