org.evosuite.instrumentation.coverage

Class BranchInstrumentation

java.lang.Object

org.evosuite.instrumentation.coverage.BranchInstrumentation

All Implemented Interfaces:

MethodInstrumentation

public class BranchInstrumentation
extends Object
implements MethodInstrumentation

BranchInstrumentation class.

Author:

Copied from CFGMethodAdapter

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.slf4j.Logger	logger Constant logger

Constructor Summary

Constructors

Constructor and Description
BranchInstrumentation()

Method Summary

Modifier and Type	Method and Description
protected void	addDefaultCaseCoveredCall(BytecodeInstruction v, org.objectweb.asm.tree.InsnList instrumentation, int defaultCaseBranchId) addDefaultCaseCoveredCall
protected void	addDefaultCaseInstrumentation(BytecodeInstruction v, org.objectweb.asm.tree.InsnList instrumentation, org.objectweb.asm.tree.AbstractInsnNode mySwitch, org.objectweb.asm.tree.LabelNode defaultLabel, org.objectweb.asm.tree.LabelNode caseLabel, org.objectweb.asm.tree.LabelNode endLabel) addDefaultCaseInstrumentation
protected void	addDefaultCaseNotCoveredCall(BytecodeInstruction v, org.objectweb.asm.tree.InsnList instrumentation, int defaultCaseBranchId) addDefaultCaseNotCoveredCall
protected void	addInstrumentationForDefaultLookupswitchCase(BytecodeInstruction v, org.objectweb.asm.tree.InsnList instrumentation) addInstrumentationForDefaultLookupswitchCase
protected void	addInstrumentationForDefaultSwitchCase(BytecodeInstruction v, org.objectweb.asm.tree.InsnList instrumentation) addInstrumentationForDefaultSwitchCase
protected void	addInstrumentationForDefaultTableswitchCase(BytecodeInstruction v, org.objectweb.asm.tree.InsnList instrumentation) addInstrumentationForDefaultTableswitchCase
protected void	addInstrumentationForSwitchCases(BytecodeInstruction v, org.objectweb.asm.tree.InsnList instrumentation, String className, String methodName) For each actual case : of a switch this method adds instrumentation for the Branch corresponding to that case to the given instruction list.
void	analyze(ClassLoader classLoader, org.objectweb.asm.tree.MethodNode mn, String className, String methodName, int access) analyze
boolean	executeOnExcludedMethods() if this method returns true the analyze method is also called on methods which are excluded in CFGMethodAdapter.EXCLUDE
boolean	executeOnMainMethod() If this method returns true, the analyze method is also called on public static void main() methods
protected org.objectweb.asm.tree.InsnList	getInstrumentation(BytecodeInstruction instruction) getInstrumentation
protected org.objectweb.asm.tree.InsnList	getSwitchInstrumentation(BytecodeInstruction v, org.objectweb.asm.tree.MethodNode mn, String className, String methodName) Creates the instrumentation for switch statements as follows: For each case : in the switch, two calls to the ExecutionTracer are added to the instrumentation, indicating whether the case is hit directly or not.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

logger

protected static final org.slf4j.Logger logger

Constant logger

Constructor Detail

BranchInstrumentation

public BranchInstrumentation()

Method Detail

analyze

public void analyze(ClassLoader classLoader,
                    org.objectweb.asm.tree.MethodNode mn,
                    String className,
                    String methodName,
                    int access)

analyze

Specified by:

analyze in interface MethodInstrumentation

mn - the ASM Node of the method

className - the name of current class

methodName - the name of the current method. This name includes the description of the method and is therefore unique per class.

access - the access of the current method (see org.objectweb.asm.ClassAdapter#visitMethod(int access, String name, String descriptor, String signature, String[] exceptions))

getInstrumentation

protected org.objectweb.asm.tree.InsnList getInstrumentation(BytecodeInstruction instruction)

getInstrumentation

Parameters:

instruction - a BytecodeInstruction object.

Returns:

a InsnList object.

getSwitchInstrumentation

protected org.objectweb.asm.tree.InsnList getSwitchInstrumentation(BytecodeInstruction v,
                                                                   org.objectweb.asm.tree.MethodNode mn,
                                                                   String className,
                                                                   String methodName)

Creates the instrumentation for switch statements as follows: For each case : in the switch, two calls to the ExecutionTracer are added to the instrumentation, indicating whether the case is hit directly or not. This is done by addInstrumentationForSwitchCases(). Additionally in order to trace the execution of the default: case of the switch, the following instrumentation is added using addDefaultCaseInstrumentation(): A new switch, holding the same s as the original switch we want to cover. All cases point to a label after which a call to the ExecutionTracer is added, indicating that the default case was not hit directly. Symmetrically the new switch has a default case: holding a call to the ExecutionTracer to indicate that the default will be hit directly.

Parameters:

v - a BytecodeInstruction object.

mn - a MethodNode object.

className - a String object.

methodName - a String object.

Returns:

a InsnList object.

addInstrumentationForSwitchCases

protected void addInstrumentationForSwitchCases(BytecodeInstruction v,
                                                org.objectweb.asm.tree.InsnList instrumentation,
                                                String className,
                                                String methodName)

For each actual case : of a switch this method adds instrumentation for the Branch corresponding to that case to the given instruction list.

Parameters:

v - a BytecodeInstruction object.

instrumentation - a InsnList object.

className - a String object.

methodName - a String object.

addInstrumentationForDefaultSwitchCase

protected void addInstrumentationForDefaultSwitchCase(BytecodeInstruction v,
                                                      org.objectweb.asm.tree.InsnList instrumentation)

addInstrumentationForDefaultSwitchCase

Parameters:

v - a BytecodeInstruction object.

instrumentation - a InsnList object.

addInstrumentationForDefaultTableswitchCase

protected void addInstrumentationForDefaultTableswitchCase(BytecodeInstruction v,
                                                           org.objectweb.asm.tree.InsnList instrumentation)

addInstrumentationForDefaultTableswitchCase

Parameters:

v - a BytecodeInstruction object.

instrumentation - a InsnList object.

addInstrumentationForDefaultLookupswitchCase

protected void addInstrumentationForDefaultLookupswitchCase(BytecodeInstruction v,
                                                            org.objectweb.asm.tree.InsnList instrumentation)

addInstrumentationForDefaultLookupswitchCase

Parameters:

v - a BytecodeInstruction object.

instrumentation - a InsnList object.

addDefaultCaseInstrumentation

protected void addDefaultCaseInstrumentation(BytecodeInstruction v,
                                             org.objectweb.asm.tree.InsnList instrumentation,
                                             org.objectweb.asm.tree.AbstractInsnNode mySwitch,
                                             org.objectweb.asm.tree.LabelNode defaultLabel,
                                             org.objectweb.asm.tree.LabelNode caseLabel,
                                             org.objectweb.asm.tree.LabelNode endLabel)

addDefaultCaseInstrumentation

Parameters:

v - a BytecodeInstruction object.

instrumentation - a InsnList object.

mySwitch - a AbstractInsnNode object.

defaultLabel - a LabelNode object.

caseLabel - a LabelNode object.

endLabel - a LabelNode object.

addDefaultCaseCoveredCall

protected void addDefaultCaseCoveredCall(BytecodeInstruction v,
                                         org.objectweb.asm.tree.InsnList instrumentation,
                                         int defaultCaseBranchId)

addDefaultCaseCoveredCall

Parameters:

v - a BytecodeInstruction object.

instrumentation - a InsnList object.

defaultCaseBranchId - a int.

addDefaultCaseNotCoveredCall

protected void addDefaultCaseNotCoveredCall(BytecodeInstruction v,
                                            org.objectweb.asm.tree.InsnList instrumentation,
                                            int defaultCaseBranchId)

addDefaultCaseNotCoveredCall

Parameters:

v - a BytecodeInstruction object.

instrumentation - a InsnList object.

defaultCaseBranchId - a int.

executeOnExcludedMethods

public boolean executeOnExcludedMethods()

if this method returns true the analyze method is also called on methods which are excluded in CFGMethodAdapter.EXCLUDE

Specified by:

executeOnExcludedMethods in interface MethodInstrumentation

Returns:

a boolean.

executeOnMainMethod

public boolean executeOnMainMethod()

If this method returns true, the analyze method is also called on public static void main() methods

Specified by:

executeOnMainMethod in interface MethodInstrumentation

Returns:

a boolean.