"{ Package: 'stx:goodies/petitparser/compiler/tests' }"

"{ NameSpace: Smalltalk }"

PPAbstractParserTest subclass:#PPCUnivarsalGuardTest
	instanceVariableNames:'parser result context node compiler id node2 id2 id1 node1 node3
		arguments configuration'
	classVariableNames:''
	poolDictionaries:''
	category:'PetitCompiler-Tests-Core-Universal'
!

!PPCUnivarsalGuardTest methodsFor:'as yet unclassified'!

assert: p parse: whatever
    ^ result := super assert: p parse: whatever.
!

context	
    ^ context := PPCProfilingContext new
!

setUp
    arguments := PPCArguments default
        profile: true;
        yourself.
        
    configuration := PPCUniversalConfiguration new
        arguments: arguments;
        yourself.
!

tearDown
    | parserClass |

    parserClass := (Smalltalk at: #PPGeneratedParser ifAbsent: [nil]).
    parserClass notNil ifTrue:[ 
        parserClass removeFromSystem
    ].
! !

!PPCUnivarsalGuardTest methodsFor:'tests - guard'!

testChoiceGuard
    parser := ('foo' asParser trimmingToken / 'bar' asParser trimmingToken / $d asParser trimmingToken plus) 
        compileWithConfiguration: configuration.
    
    self assert: parser parse: 'foo'.
    self assert: result inputValue = 'foo'.	
    self assert: (context invocations anySatisfy: [ :e | e beginsWith: 'token' ]).

    self assert: parser parse: 'bar'.
    self assert: result inputValue = 'bar'.	

    self assert: parser parse: ' foo'.
    self assert: result inputValue = 'foo'.	

    self assert: parser parse: '  d'.
    self assert: result first inputValue = 'd'.	

    self assert: parser fail: ''.
    self assert: (context invocations noneSatisfy: [ :e | e beginsWith: 'predicate' ]).
    self assert: (context invocations noneSatisfy: [ :e | e beginsWith: 'token' ]).

    self assert: parser fail: 'zorg'.		
    self assert: (context invocations noneSatisfy: [ :e | e beginsWith: 'token' ]).
!

testEmptyChoiceGuard
    parser := ('foo' asParser trimmingToken / 'bar' asParser trimmingToken / $d asParser trimmingToken star) 
        compileWithConfiguration: configuration.
    
    self assert: parser parse: 'foo'.
    self assert: result inputValue = 'foo'.	

    self assert: parser parse: 'bar'.
    self assert: result inputValue = 'bar'.	

    self assert: parser parse: ' foo'.
    self assert: result inputValue = 'foo'.	

    self assert: parser parse: '  d'.
    self assert: result first inputValue = 'd'.	

    self assert: parser parse: ''.

    self assert: parser parse: 'zorg' end: 0.	
!

testGuardSmalltlakToken
    parser := (#letter asParser, #word asParser star) smalltalkToken compileWithConfiguration: configuration.
    
    self assert: parser parse: 'bar'.
    self assert: (context invocations anySatisfy: [ :e | e beginsWith: 'seq' ]).
    
    self assert: parser fail: '123'.
    self assert: (context invocations noneSatisfy: [ :e | e beginsWith: 'seq' ]).
!

testSequenceGuard
    parser := ((#any asParser, #any asParser) wrapped, (#any asParser, #any asParser)) compileWithConfiguration: configuration.
    
    self assert: parser parse: 'fooo' to: #(#($f $o) #($o $o)).	
    self assert: parser parse: 'fo oo' to: #(#($f $o) #($  $o)) end: 4.	
    self assert: parser fail: 'fo'.
    
!

testTrimmerGuard
    parser := $a asParser trim, $b asParser compileWithConfiguration: configuration.
    
    self assert: parser parse: 'ab'.
    self assert: parser parse: ' ab'.
! !