"{ Package: 'stx:goodies/petitparser' }"
PPCompositeParserTest subclass:#PPLambdaParserTest
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'PetitTests-Tests'
!
!PPLambdaParserTest methodsFor:'accessing'!
parserClass
^ PPLambdaParser
! !
!PPLambdaParserTest methodsFor:'testing'!
testAbstraction
self assert: '\x.y' is: #('x' 'y').
self assert: '\x.\y.z' is: #('x' ('y' 'z'))
!
testApplication
self assert: '(x x)' is: #('x' 'x').
self assert: '(x y)' is: #('x' 'y').
self assert: '((x y) z)' is: #(('x' 'y') 'z').
self assert: '(x (y z))' is: #('x' ('y' 'z'))
!
testVariable
self assert: 'x' is: 'x'.
self assert: 'xy' is: 'xy'.
self assert: 'x12' is: 'x12'
! !
!PPLambdaParserTest methodsFor:'testing-curch'!
testAnd
self assert: self parserClass and = #('p' ('q' (('p' 'q') 'p')))
!
testFalse
self assert: self parserClass false = #('x' ('y' 'y'))
!
testIfThenElse
self assert: self parserClass ifthenelse = #('p' 'p')
!
testNot
self assert: self parserClass not = #('p' ('a' ('b' (('p' 'b') 'a'))))
!
testOr
self assert: self parserClass or = #('p' ('q' (('p' 'p') 'q')))
!
testTrue
self assert: self parserClass true = #('x' ('y' 'x'))
! !
!PPLambdaParserTest methodsFor:'testing-utilities'!
testParseOnError
| beenHere |
result := self parserClass
parse: '\x.y'
onError: [ self fail ].
self assert: result = #('x' 'y').
beenHere := false.
result := self parserClass
parse: '\x.'
onError: [ beenHere := true ].
self assert: beenHere.
beenHere := false.
result := self parserClass
parse: '\x.'
onError: [ :fail | beenHere := true. fail ].
self assert: beenHere.
self assert: (result message findString: '$(') > 0.
self assert: (result message findString: 'expected') > 0.
self assert: (result position = 0).
beenHere := false.
result := self parserClass
parse: '\x.'
onError: [ :msg :pos |
self assert: (msg findString: '$(') > 0.
self assert: (msg findString: 'expected') > 0.
self assert: (pos = 0).
beenHere := true ].
self assert: result.
self assert: beenHere
!
testParseStartingAtOnError
| beenHere |
result := self parserClass
parse: 'x'
startingAt: #variable
onError: [ self fail ].
self assert: result = 'x'.
beenHere := false.
result := self parserClass
parse: '\'
startingAt: #variable
onError: [ beenHere := true ].
self assert: beenHere.
beenHere := false.
result := self parserClass
parse: '\'
startingAt: #variable
onError: [ :fail | beenHere := true. fail ].
self assert: beenHere.
self assert: result message = 'letter expected'.
self assert: result position = 0.
beenHere := false.
result := self parserClass
parse: '\'
startingAt: #variable
onError: [ :msg :pos |
self assert: msg = 'letter expected'.
self assert: pos = 0.
beenHere := true ].
self assert: beenHere
!
testProductionAt
self assert: (parser productionAt: #foo) isNil.
self assert: (parser productionAt: #foo ifAbsent: [ true ]).
self assert: (parser productionAt: #start) notNil.
self assert: (parser productionAt: #start ifAbsent: [ true ]) notNil.
self assert: (parser productionAt: #variable) notNil.
self assert: (parser productionAt: #variable ifAbsent: [ true ]) notNil
! !
!PPLambdaParserTest class methodsFor:'documentation'!
version
^ '$Header: /cvs/stx/stx/goodies/petitparser/PPLambdaParserTest.st,v 1.4 2014-03-04 14:34:18 cg Exp $'
!
version_CVS
^ '$Header: /cvs/stx/stx/goodies/petitparser/PPLambdaParserTest.st,v 1.4 2014-03-04 14:34:18 cg Exp $'
!
version_SVN
^ '$Id: PPLambdaParserTest.st,v 1.4 2014-03-04 14:34:18 cg Exp $'
! !