New mutant operators

src/MuTalk-Model/MTAssignmentNullifierOperator.class.st

@@ -0,0 +1,29 @@
+Class {
+	#name : 'MTAssignmentNullifierOperator',
+	#superclass : 'MTBlockBasedMutantOperator',
+	#category : 'MuTalk-Model-Operators',
+	#package : 'MuTalk-Model',
+	#tag : 'Operators'
+}
+
+{ #category : 'printing' }
+MTAssignmentNullifierOperator >> description [
+
+	^ 'Nullify the value assigned'
+]
+
+{ #category : 'applying' }
+MTAssignmentNullifierOperator >> expressionToReplace [
+
+	^ [ :aNode | aNode isAssignment & aNode value isNotNil ]
+]
+
+{ #category : 'applying' }
+MTAssignmentNullifierOperator >> newExpression [
+
+	^ [ :anOldNode |
+	  | nodeCopy |
+	  nodeCopy := anOldNode copy.
+	  nodeCopy value: (RBLiteralValueNode value: nil).
+	  nodeCopy ]
+]

src/MuTalk-Model/MTReplaceWhileFalseReceiverOperator.class.st

@@ -0,0 +1,19 @@
+Class {
+	#name : 'MTReplaceWhileFalseReceiverOperator',
+	#superclass : 'MTReplaceReceiverOperator',
+	#category : 'MuTalk-Model-Operators',
+	#package : 'MuTalk-Model',
+	#tag : 'Operators'
+}
+
+{ #category : 'testing' }
+MTReplaceWhileFalseReceiverOperator class >> isAbstract [
+
+	^ self == MTReplaceWhileFalseReceiverOperator
+]
+
+{ #category : 'applying' }
+MTReplaceWhileFalseReceiverOperator >> selector [
+
+	^ #whileFalse:
+]

src/MuTalk-Model/MTReplaceWhileFalseReceiverWithFalseOperator.class.st

@@ -0,0 +1,13 @@
+Class {
+	#name : 'MTReplaceWhileFalseReceiverWithFalseOperator',
+	#superclass : 'MTReplaceWhileFalseReceiverOperator',
+	#category : 'MuTalk-Model-Operators',
+	#package : 'MuTalk-Model',
+	#tag : 'Operators'
+}
+
+{ #category : 'applying' }
+MTReplaceWhileFalseReceiverWithFalseOperator >> newReceiverExpression [
+
+	^ 'false'
+]

src/MuTalk-Model/MTReplaceWhileFalseReceiverWithTrueOperator.class.st

@@ -0,0 +1,13 @@
+Class {
+	#name : 'MTReplaceWhileFalseReceiverWithTrueOperator',
+	#superclass : 'MTReplaceWhileFalseReceiverOperator',
+	#category : 'MuTalk-Model-Operators',
+	#package : 'MuTalk-Model',
+	#tag : 'Operators'
+}
+
+{ #category : 'applying' }
+MTReplaceWhileFalseReceiverWithTrueOperator >> newReceiverExpression [
+
+	^ 'true'
+]

src/MuTalk-Model/MTReplaceWhileFalseWithWhileTrueMutantOperator.class.st

@@ -0,0 +1,19 @@
+Class {
+	#name : 'MTReplaceWhileFalseWithWhileTrueMutantOperator',
+	#superclass : 'MTSelectorReplacementMutantOperator',
+	#category : 'MuTalk-Model-Operators',
+	#package : 'MuTalk-Model',
+	#tag : 'Operators'
+}
+
+{ #category : 'accessing' }
+MTReplaceWhileFalseWithWhileTrueMutantOperator >> newSelector [
+
+	^ #whileTrue:
+]
+
+{ #category : 'accessing' }
+MTReplaceWhileFalseWithWhileTrueMutantOperator >> oldSelector [
+
+	^ #whileFalse:
+]

src/MuTalk-Model/MTReplaceWhileTrueReceiverOperator.class.st

@@ -0,0 +1,19 @@
+Class {
+	#name : 'MTReplaceWhileTrueReceiverOperator',
+	#superclass : 'MTReplaceReceiverOperator',
+	#category : 'MuTalk-Model-Operators',
+	#package : 'MuTalk-Model',
+	#tag : 'Operators'
+}
+
+{ #category : 'testing' }
+MTReplaceWhileTrueReceiverOperator class >> isAbstract [
+
+	^ self == MTReplaceWhileTrueReceiverOperator
+]
+
+{ #category : 'applying' }
+MTReplaceWhileTrueReceiverOperator >> selector [
+
+	^ #whileTrue:
+]

src/MuTalk-Model/MTReplaceWhileTrueReceiverWithFalseOperator.class.st

@@ -0,0 +1,13 @@
+Class {
+	#name : 'MTReplaceWhileTrueReceiverWithFalseOperator',
+	#superclass : 'MTReplaceWhileTrueReceiverOperator',
+	#category : 'MuTalk-Model-Operators',
+	#package : 'MuTalk-Model',
+	#tag : 'Operators'
+}
+
+{ #category : 'applying' }
+MTReplaceWhileTrueReceiverWithFalseOperator >> newReceiverExpression [
+
+	^ 'false'
+]

src/MuTalk-Model/MTReplaceWhileTrueReceiverWithTrueOperator.class.st

@@ -0,0 +1,13 @@
+Class {
+	#name : 'MTReplaceWhileTrueReceiverWithTrueOperator',
+	#superclass : 'MTReplaceWhileTrueReceiverOperator',
+	#category : 'MuTalk-Model-Operators',
+	#package : 'MuTalk-Model',
+	#tag : 'Operators'
+}
+
+{ #category : 'applying' }
+MTReplaceWhileTrueReceiverWithTrueOperator >> newReceiverExpression [
+
+	^ 'true'
+]

src/MuTalk-Model/MTReplaceWhileTrueWithWhileFalseMutantOperator.class.st

@@ -0,0 +1,19 @@
+Class {
+	#name : 'MTReplaceWhileTrueWithWhileFalseMutantOperator',
+	#superclass : 'MTSelectorReplacementMutantOperator',
+	#category : 'MuTalk-Model-Operators',
+	#package : 'MuTalk-Model',
+	#tag : 'Operators'
+}
+
+{ #category : 'accessing' }
+MTReplaceWhileTrueWithWhileFalseMutantOperator >> newSelector [
+
+	^ #whileFalse:
+]
+
+{ #category : 'accessing' }
+MTReplaceWhileTrueWithWhileFalseMutantOperator >> oldSelector [
+
+	^ #whileTrue:
+]

src/MuTalk-Tests/MTAssignmentNullifierOperatorTest.class.st

@@ -0,0 +1,56 @@
+Class {
+	#name : 'MTAssignmentNullifierOperatorTest',
+	#superclass : 'MTMutantOperatorTest',
+	#category : 'MuTalk-Tests',
+	#package : 'MuTalk-Tests'
+}
+
+{ #category : 'accessing' }
+MTAssignmentNullifierOperatorTest >> methodWithNoSenders [
+
+	^ 1 + 2
+]
+
+{ #category : 'accessing' }
+MTAssignmentNullifierOperatorTest >> methodWithOneSender [
+
+	| i |
+	i := 1
+]
+
+{ #category : 'accessing' }
+MTAssignmentNullifierOperatorTest >> methodWithOneSenderModified [
+
+	| i |
+	i := nil
+]
+
+{ #category : 'accessing' }
+MTAssignmentNullifierOperatorTest >> methodWithTwoSenders [
+
+	| i j |
+	i := 1.
+	j := 2
+]
+
+{ #category : 'accessing' }
+MTAssignmentNullifierOperatorTest >> methodWithTwoSendersModifiedFirst [
+
+	| i j |
+	i := nil.
+	j := 2
+]
+
+{ #category : 'accessing' }
+MTAssignmentNullifierOperatorTest >> methodWithTwoSendersModifiedSecond [
+
+	| i j |
+	i := 1.
+	j := nil
+]
+
+{ #category : 'accessing' }
+MTAssignmentNullifierOperatorTest >> operator [
+
+	^ MTAssignmentNullifierOperator new
+]

src/MuTalk-Tests/MTEmptyMethodOperatorTest.class.st

@@ -24,12 +24,6 @@ MTEmptyMethodOperatorTest >> operator [
 	^ MTEmptyMethodOperator new
 ]
 
-{ #category : 'accessing' }
-MTEmptyMethodOperatorTest >> operatorDescription [
-
-	^ self operator  description
-]
-
 { #category : 'tests' }
 MTEmptyMethodOperatorTest >> testApplyMutantToMethod [
 

src/MuTalk-Tests/MTLiteralBooleanNegateOperatorTest.class.st

@@ -46,9 +46,3 @@ MTLiteralBooleanNegateOperatorTest >> operator [
 
 	^ MTLiteralBooleanNegateOperator new
 ]
-
-{ #category : 'accessing' }
-MTLiteralBooleanNegateOperatorTest >> operatorDescription [
-
-	^ self operator description 
-]

src/MuTalk-Tests/MTLiteralIntegersIncreaseOperatorTest.class.st

@@ -49,9 +49,3 @@ MTLiteralIntegersIncreaseOperatorTest >> operator [
 
 	^ MTLiteralIntegersIncreaseOperator new
 ]
-
-{ #category : 'accessing' }
-MTLiteralIntegersIncreaseOperatorTest >> operatorDescription [
-
-	^ 'Increase a literal integer'
-]

src/MuTalk-Tests/MTMessageSendArguments1stNullifierOperatorTest.class.st

@@ -61,9 +61,3 @@ MTMessageSendArguments1stNullifierOperatorTest >> operator [
 
 	^ MTMessageSendArguments1stNullifierOperator new
 ]
-
-{ #category : 'accessing' }
-MTMessageSendArguments1stNullifierOperatorTest >> operatorDescription [
-
-	^ self operator  description
-]

src/MuTalk-Tests/MTMessageSendArguments3rdNullifierOperatorTest.class.st

@@ -69,9 +69,3 @@ MTMessageSendArguments3rdNullifierOperatorTest >> operator [
 
 	^ MTMessageSendArguments3rdNullifierOperator new
 ]
-
-{ #category : 'accessing' }
-MTMessageSendArguments3rdNullifierOperatorTest >> operatorDescription [
-
-	^ self operator  description
-]

src/MuTalk-Tests/MTMessageSendToYourselfOperatorTest.class.st

@@ -51,9 +51,3 @@ MTMessageSendToYourselfOperatorTest >> operator [
 
 	^ MTMessageSendToYourselfOperator new
 ]
-
-{ #category : 'accessing' }
-MTMessageSendToYourselfOperatorTest >> operatorDescription [
-
-	^ self operator  description
-]

src/MuTalk-Tests/MTMutantOperatorTest.class.st

@@ -156,7 +156,8 @@ MTMutantOperatorTest >> operator [
 
 { #category : 'accessing' }
 MTMutantOperatorTest >> operatorDescription [
-	self subclassResponsibility 
+
+	^ self operator description
 ]
 
 { #category : 'tests' }

src/MuTalk-Tests/MTRemoveAtIfAbsentMutantOperatorTest.class.st

@@ -49,8 +49,3 @@ MTRemoveAtIfAbsentMutantOperatorTest >> methodWithTwoSendersModifiedSecond [
 MTRemoveAtIfAbsentMutantOperatorTest >> operator [
 	^ MTRemoveAtIfAbsentOperator new
 ]
-
-{ #category : 'accessing' }
-MTRemoveAtIfAbsentMutantOperatorTest >> operatorDescription [
-	^ 'Remove at:ifAbsent:' 
-]

src/MuTalk-Tests/MTRemoveCaretMutantOperatorTest.class.st

@@ -46,8 +46,3 @@ MTRemoveCaretMutantOperatorTest >> methodWithTwoSendersModifiedSecond [
 MTRemoveCaretMutantOperatorTest >> operator [
 	^ MTRemoveCaretOperator new
 ]
-
-{ #category : 'accessing' }
-MTRemoveCaretMutantOperatorTest >> operatorDescription [
-	^ 'Remove ^' 
-]

src/MuTalk-Tests/MTRemoveExceptionHandlerOperatorTest.class.st

@@ -43,8 +43,3 @@ MTRemoveExceptionHandlerOperatorTest >> methodWithTwoSendersModifiedSecond [
 MTRemoveExceptionHandlerOperatorTest >> operator [
 	^ MTRemoveExceptionHandlerOperator new
 ]
-
-{ #category : 'accessing' }
-MTRemoveExceptionHandlerOperatorTest >> operatorDescription [
-	^ 'Remove Exception Handler Operator'
-]

src/MuTalk-Tests/MTReplaceAndArgumentWithTrueOperatorTest.class.st

@@ -46,8 +46,3 @@ MTReplaceAndArgumentWithTrueOperatorTest >> methodWithTwoSendersModifiedSecond [
 MTReplaceAndArgumentWithTrueOperatorTest >> operator [
 	^ MTReplaceAndArgumentWithTrueOperator new.
 ]
-
-{ #category : 'accessing' }
-MTReplaceAndArgumentWithTrueOperatorTest >> operatorDescription [
-	^'Replace #and: argument with [true]'
-]

src/MuTalk-Tests/MTReplaceAndReceiverWithTrueOperatorTest.class.st

@@ -46,8 +46,3 @@ MTReplaceAndReceiverWithTrueOperatorTest >> methodWithTwoSendersModifiedSecond [
 MTReplaceAndReceiverWithTrueOperatorTest >> operator [
 	^ MTReplaceAndReceiverWithTrueOperator new
 ]
-
-{ #category : 'accessing' }
-MTReplaceAndReceiverWithTrueOperatorTest >> operatorDescription [
-	^'Replace #and: receiver with true'
-]

src/MuTalk-Tests/MTReplaceAndWithEqvMutantOperatorTest.class.st

@@ -39,8 +39,3 @@ MTReplaceAndWithEqvMutantOperatorTest >> methodWithTwoSendersModifiedSecond [
 MTReplaceAndWithEqvMutantOperatorTest >> operator [
 	^ MTReplaceAndWithEqvMutantOperator new
 ]
-
-{ #category : 'accessing' }
-MTReplaceAndWithEqvMutantOperatorTest >> operatorDescription [
-	^'Replace #and: with #bEqv:'
-]

src/MuTalk-Tests/MTReplaceAndWithFalseMutantOperatorTest.class.st

@@ -39,8 +39,3 @@ MTReplaceAndWithFalseMutantOperatorTest >> methodWithTwoSendersModifiedSecond [
 MTReplaceAndWithFalseMutantOperatorTest >> operator [
 	^ MTReplaceAndWithFalseOperator new
 ]
-
-{ #category : 'accessing' }
-MTReplaceAndWithFalseMutantOperatorTest >> operatorDescription [
-	^'Replace #and: with false'
-]

src/MuTalk-Tests/MTReplaceAndWithNandMutantOperatorTest.class.st

@@ -39,8 +39,3 @@ MTReplaceAndWithNandMutantOperatorTest >> methodWithTwoSendersModifiedSecond [
 MTReplaceAndWithNandMutantOperatorTest >> operator [
 	^ MTReplaceAndWithNandMutantOperator new
 ]
-
-{ #category : 'accessing' }
-MTReplaceAndWithNandMutantOperatorTest >> operatorDescription [
-	^'Replace #and: with #nand:'
-]

src/MuTalk-Tests/MTReplaceAndWithOrMutantOperatorTest.class.st

@@ -39,8 +39,3 @@ MTReplaceAndWithOrMutantOperatorTest >> methodWithTwoSendersModifiedSecond [
 MTReplaceAndWithOrMutantOperatorTest >> operator [
 	^ MTReplaceAndWithOrMutantOperator new
 ]
-
-{ #category : 'accessing' }
-MTReplaceAndWithOrMutantOperatorTest >> operatorDescription [
-	^'Replace #and: with #or:'
-]

src/MuTalk-Tests/MTReplaceDetectIfNoneFirstBlockWithAlwaysFalseBlockOperatorTest.class.st

@@ -66,8 +66,3 @@ MTReplaceDetectIfNoneFirstBlockWithAlwaysFalseBlockOperatorTest >> methodWithTwo
 MTReplaceDetectIfNoneFirstBlockWithAlwaysFalseBlockOperatorTest >> operator [
 	^ MTReplaceDetectIfNoneFirstBlockWithAlwaysFalseBlockOperator new
 ]
-
-{ #category : 'accessing' }
-MTReplaceDetectIfNoneFirstBlockWithAlwaysFalseBlockOperatorTest >> operatorDescription [ 
-	^'Replace detect: block with [:each | false] when #detect:ifNone: ' 
-]

src/MuTalk-Tests/MTReplaceDetectIfNoneFirstBlockWithAlwaysTrueBlockOperatorTest.class.st

@@ -66,8 +66,3 @@ MTReplaceDetectIfNoneFirstBlockWithAlwaysTrueBlockOperatorTest >> methodWithTwoS
 MTReplaceDetectIfNoneFirstBlockWithAlwaysTrueBlockOperatorTest >> operator [
 	^ MTReplaceDetectIfNoneFirstBlockWithAlwaysTrueBlockOperator new
 ]
-
-{ #category : 'accessing' }
-MTReplaceDetectIfNoneFirstBlockWithAlwaysTrueBlockOperatorTest >> operatorDescription [ 
-	^'Replace detect: block with [:each | true] when #detect:ifNone: ' 
-]