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"{ Package: 'stx:goodies/petitparser/analyzer/tests' }"
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PPAbstractParserTest subclass:#PPRewriterTest
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instanceVariableNames:'rewriter'
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classVariableNames:''
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poolDictionaries:''
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category:'PetitAnalyzer-Tests'
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!
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!PPRewriterTest methodsFor:'running'!
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setUp
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rewriter := PPRewriter new
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! !
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!PPRewriterTest methodsFor:'testing'!
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testDuplicationRemoval
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| duplicate before between after result |
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duplicate := PPPattern any.
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before := PPListPattern any.
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between := PPListPattern any.
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after := PPListPattern any.
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rewriter
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replace: before / duplicate / between / duplicate / after
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with: before / duplicate / between / after.
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result := rewriter execute: $a asParser / $a asParser.
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self assert: rewriter hasChanged.
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self assert: result children size = 1.
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self assert: result children first literal = $a.
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result := rewriter execute: $b asParser / $a asParser / $a asParser.
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self assert: rewriter hasChanged.
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self assert: result children size = 2.
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self assert: result children first literal = $b.
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self assert: result children last literal = $a.
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result := rewriter execute: $a asParser / $b asParser / $a asParser.
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self assert: rewriter hasChanged.
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self assert: result children size = 2.
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self assert: result children first literal = $a.
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self assert: result children last literal = $b.
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result := rewriter execute: $a asParser / $a asParser / $b asParser.
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self assert: rewriter hasChanged.
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self assert: result children size = 2.
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self assert: result children first literal = $a.
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self assert: result children last literal = $b
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!
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testPatternRemoval
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| pattern result |
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pattern := PPPattern class: PPLiteralObjectParser.
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rewriter
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replace: pattern / pattern
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with: pattern.
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result := rewriter execute: $a asParser / $a asParser.
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self assert: rewriter hasChanged.
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self assert: result class = PPLiteralObjectParser.
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self assert: result literal = $a.
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result := rewriter execute: $a asParser / $a asParser / $a asParser.
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self deny: rewriter hasChanged.
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self assert: result class = PPChoiceParser.
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self assert: result children size = 3
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!
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testPatternReplacement
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| pattern result |
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pattern := PPPattern class: PPLiteralObjectParser.
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rewriter
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replace: pattern
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with: pattern , pattern.
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result := rewriter execute: $a asParser.
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self assert: rewriter hasChanged.
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self assert: result class = PPSequenceParser.
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self assert: result children first literal = $a.
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self assert: result children last literal = $a.
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result := rewriter execute: #any asParser.
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self deny: rewriter hasChanged.
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self assert: result class = PPPredicateObjectParser
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!
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testReplaceLiteral
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| result |
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rewriter
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replace: $a asParser
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with: $b asParser.
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result := rewriter execute: $a asParser.
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self assert: rewriter hasChanged.
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self assert: result literal = $b.
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result := rewriter execute: $c asParser.
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self deny: rewriter hasChanged.
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self assert: result literal = $c.
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result := rewriter execute: $a asParser , $b asParser , $c asParser.
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self assert: rewriter hasChanged.
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self assert: result children size = 3.
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self assert: result children first literal = $b.
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self assert: result children last literal = $c
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!
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testSwapTwoPattern
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| first second result |
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first := PPPattern any.
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second := PPPattern any.
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rewriter
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replace: first , second
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with: second , first.
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result := rewriter execute: $a asParser , $b asParser.
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self assert: rewriter hasChanged.
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self assert: result children first literal = $b.
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self assert: result children last literal = $a.
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result := rewriter execute: $a asParser / $b asParser.
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self deny: rewriter hasChanged.
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self assert: result children first literal = $a.
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self assert: result children last literal = $b
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testWrapLiteral
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| result |
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rewriter
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replace: $a asParser
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withValueFrom: [ :parser | parser token ].
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result := rewriter execute: $a asParser.
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self assert: rewriter hasChanged.
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self assert: result class = PPTokenParser.
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self assert: result children first literal = $a.
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result := rewriter execute: $c asParser.
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self deny: rewriter hasChanged.
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self assert: result literal = $c.
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result := rewriter execute: $a asParser , $b asParser.
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self assert: rewriter hasChanged.
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self assert: result children first class = PPTokenParser.
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self assert: result children first children first literal = $a.
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self assert: result children last class = PPLiteralObjectParser.
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self assert: result children last literal = $b
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! !
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!PPRewriterTest class methodsFor:'documentation'!
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version
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^ '$Header: /cvs/stx/stx/goodies/petitparser/analyzer/tests/PPRewriterTest.st,v 1.1 2014-03-04 15:43:01 cg Exp $'
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!
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version_CVS
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^ '$Header: /cvs/stx/stx/goodies/petitparser/analyzer/tests/PPRewriterTest.st,v 1.1 2014-03-04 15:43:01 cg Exp $'
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! !
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