Merged JK's version from Monticello
Name: PetitParser-JanKurs.275
Author: JanKurs
Time: 31-03-2015, 05:51:24.398 PM
UUID: 9ab3be24-8393-4794-a7e6-e318f3195673
Name: PetitTests-JanKurs.73
Author: JanKurs
Time: 21-02-2015, 01:10:13.115 PM
UUID: de4f77e3-2d07-476b-855e-69f845edfc7c
"{ Package: 'stx:goodies/petitparser/tests' }"
"{ NameSpace: Smalltalk }"
PPAbstractParserTest subclass:#PPParserTest
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'PetitTests-Tests'
!
!PPParserTest methodsFor:'testing'!
testAnd
| parser |
parser := 'foo' asParser flatten , 'bar' asParser flatten and.
self
assert: parser
parse: 'foobar'
to: #('foo' 'bar')
end: 3.
self assert: parser fail: 'foobaz'.
parser := 'foo' asParser and.
self assert: parser and equals: parser
!
testBlock
| parser |
parser := [ :s | s next ] asParser.
self assert: parser parse: 'ab' to: $a end: 1.
self assert: parser parse: 'b' to: $b.
self assert: parser parse: '' to: nil
!
testChoice
| parser |
parser := $a asParser / $b asParser.
self assert: parser parse: 'a' to: $a.
self assert: parser parse: 'b' to: $b.
self assert: parser parse: 'ab' to: $a end: 1.
self assert: parser parse: 'ba' to: $b end: 1.
self assert: parser fail: ''.
self assert: parser fail: 'c'.
self assert: parser fail: 'ca'
!
testDelimitedBy
| parser |
parser := $a asParser delimitedBy: $b asParser.
self assert: parser parse: 'a' to: #($a).
self assert: parser parse: 'aba' to: #($a $b $a).
self assert: parser parse: 'ababa' to: #($a $b $a $b $a).
self assert: parser parse: 'ab' to: #($a $b).
self assert: parser parse: 'abab' to: #($a $b $a $b).
self assert: parser parse: 'ababab' to: #($a $b $a $b $a $b).
self assert: parser parse: 'ac' to: #($a) end: 1.
self assert: parser parse: 'abc' to: #($a $b) end: 2.
self assert: parser parse: 'abac' to: #($a $b $a) end: 3.
self assert: parser parse: 'ababc' to: #($a $b $a $b) end: 4.
self assert: parser fail: ''.
self assert: parser fail: 'b'.
self assert: parser fail: 'c'
!
testDelimitedByWithoutSeparators
| parser |
parser := ($a asParser delimitedBy: $b asParser)
withoutSeparators.
self assert: parser parse: 'a' to: #($a).
self assert: parser parse: 'aba' to: #($a $a).
self assert: parser parse: 'ababa' to: #($a $a $a).
self assert: parser parse: 'ab' to: #($a).
self assert: parser parse: 'abab' to: #($a $a).
self assert: parser parse: 'ababab' to: #($a $a $a).
self assert: parser parse: 'ac' to: #($a) end: 1.
self assert: parser parse: 'abc' to: #($a) end: 2.
self assert: parser parse: 'abac' to: #($a $a) end: 3.
self assert: parser parse: 'ababc' to: #($a $a) end: 4.
self assert: parser fail: ''.
self assert: parser fail: 'b'.
self assert: parser fail: 'c'
!
testEndOfInput
| parser |
parser := PPEndOfInputParser on: $a asParser.
self assert: parser end equals: parser.
self assert: parser parse: 'a' to: $a.
self assert: parser fail: ''.
self assert: parser fail: 'aa'
!
testEndOfInputAfterMatch
| parser |
parser := 'stuff' asParser end.
self assert: parser parse: 'stuff' to: 'stuff'.
self assert: parser fail: 'stufff'.
self assert: parser fail: 'fluff'
!
testEpsilon
| parser |
parser := nil asParser.
self assert: parser parse: '' to: nil.
self assert: parser parse: 'a' to: nil end: 0.
self assert: parser parse: 'ab' to: nil end: 0
!
testFailing
| parser result |
parser := PPFailingParser message: 'Plonk'.
self assert: parser message equals: 'Plonk'.
self assert: parser fail: ''.
self assert: parser fail: 'a'.
self assert: parser fail: 'aa'.
result := parser parse: 'a'.
self assert: result message equals: 'Plonk'.
self assert: result printString equals: 'Plonk at 0'
!
testLiteralObject
| parser |
parser := PPLiteralObjectParser on: $a message: 'letter "a" expected'.
self assert: parser literal equals: $a.
self assert: parser message equals: 'letter "a" expected'.
self assert: parser parse: 'a' to: $a.
self assert: parser fail: 'b'
!
testLiteralObjectCaseInsensitive
| parser |
parser := $a asParser caseInsensitive.
self assert: parser parse: 'a' to: $a.
self assert: parser parse: 'A' to: $A.
self assert: parser fail: ''.
self assert: parser fail: 'b'.
self assert: parser fail: 'B'
!
testLiteralSequence
| parser |
parser := PPLiteralSequenceParser on: 'abc' message: 'sequence "abc" expected'.
self assert: parser size equals: 3.
self assert: parser literal equals: 'abc'.
self assert: parser message equals: 'sequence "abc" expected'.
self assert: parser parse: 'abc' to: 'abc'.
self assert: parser fail: 'ab'.
self assert: parser fail: 'abd'
!
testLiteralSequenceCaseInsensitive
| parser |
parser := 'abc' asParser caseInsensitive.
self assert: parser parse: 'abc' to: 'abc'.
self assert: parser parse: 'ABC' to: 'ABC'.
self assert: parser parse: 'abC' to: 'abC'.
self assert: parser parse: 'AbC' to: 'AbC'.
self assert: parser fail: 'ab'.
self assert: parser fail: 'abd'
!
testMax
| parser printString suffix |
parser := $a asParser max: 2.
self assert: parser min equals: 0.
self assert: parser max equals: 2.
self assert: parser parse: '' to: #().
self assert: parser parse: 'a' to: #($a).
self assert: parser parse: 'aa' to: #($a $a).
self
assert: parser
parse: 'aaa'
to: #($a $a)
end: 2.
self
assert: parser
parse: 'aaaa'
to: #($a $a)
end: 2.
printString := parser printString.
suffix := printString copyFrom: printString size - 5 to: printString size.
self assert: suffix = '[0, 2]'
!
testMaxGreedy
| parser |
parser := #word asParser max: 2 greedy: #digit asParser.
self assert: parser fail: ''.
self assert: parser fail: 'abc'.
self assert: parser parse: '1' to: #() end: 0.
self assert: parser parse: 'a1' to: #($a) end: 1.
self assert: parser parse: 'ab1' to: #($a $b) end: 2.
self assert: parser fail: 'abc1'.
self assert: parser parse: '12' to: #($1) end: 1.
self assert: parser parse: 'a12' to: #($a $1) end: 2.
self assert: parser parse: 'ab12' to: #($a $b) end: 2.
self assert: parser fail: 'abc12'.
self assert: parser parse: '123' to: #($1 $2) end: 2.
self assert: parser parse: 'a123' to: #($a $1) end: 2.
self assert: parser parse: 'ab123' to: #($a $b) end: 2.
self assert: parser fail: 'abc123'
!
testMaxLazy
| parser |
parser := #word asParser max: 2 lazy: #digit asParser.
self assert: parser fail: ''.
self assert: parser fail: 'abc'.
self assert: parser parse: '1' to: #() end: 0.
self assert: parser parse: 'a1' to: #($a) end: 1.
self assert: parser parse: 'ab1' to: #($a $b) end: 2.
self assert: parser fail: 'abc1'.
self assert: parser parse: '12' to: #() end: 0.
self assert: parser parse: 'a12' to: #($a) end: 1.
self assert: parser parse: 'ab12' to: #($a $b) end: 2.
self assert: parser fail: 'abc12'.
self assert: parser parse: '123' to: #() end: 0.
self assert: parser parse: 'a123' to: #($a) end: 1.
self assert: parser parse: 'ab123' to: #($a $b) end: 2.
self assert: parser fail: 'abc123'
!
testMemoized
| count parser twice |
count := 0.
parser := [ :s |
count := count + 1.
s next ] asParser memoized.
twice := parser and , parser.
count := 0.
self assert: parser parse: 'a' to: $a.
self assert: count equals: 1.
count := 0.
self assert: twice parse: 'a' to: #($a $a).
self assert: count equals: 1.
self assert: parser memoized equals: parser
!
testMin
| parser printString suffix |
parser := $a asParser min: 2.
self assert: parser min equals: 2.
self assert: parser max > parser min.
self assert: parser fail: ''.
self assert: parser fail: 'a'.
self assert: parser parse: 'aa' to: #($a $a).
self assert: parser parse: 'aaa' to: #($a $a $a).
self assert: parser parse: 'aaaa' to: #($a $a $a $a).
printString := parser printString.
suffix := printString copyFrom: printString size - 5 to: printString size.
self assert: suffix = '[2, *]'
!
testMinGreedy
| parser |
parser := #word asParser min: 2 greedy: #digit asParser.
self assert: parser fail: ''.
self assert: parser fail: 'abcde'.
self assert: parser fail: '1'.
self assert: parser fail: 'a1'.
self assert: parser parse: 'ab1' to: #($a $b) end: 2.
self assert: parser parse: 'abc1' to: #($a $b $c) end: 3.
self assert: parser parse: 'abcd1' to: #($a $b $c $d) end: 4.
self assert: parser parse: 'abcde1' to: #($a $b $c $d $e) end: 5.
self assert: parser fail: '12'.
self assert: parser parse: 'a12' to: #($a $1) end: 2.
self assert: parser parse: 'ab12' to: #($a $b $1) end: 3.
self assert: parser parse: 'abc12' to: #($a $b $c $1) end: 4.
self assert: parser parse: 'abcd12' to: #($a $b $c $d $1) end: 5.
self assert: parser parse: 'abcde12' to: #($a $b $c $d $e $1) end: 6.
self assert: parser parse: '123' to: #($1 $2) end: 2.
self assert: parser parse: 'a123' to: #($a $1 $2) end: 3.
self assert: parser parse: 'ab123' to: #($a $b $1 $2) end: 4.
self assert: parser parse: 'abc123' to: #($a $b $c $1 $2) end: 5.
self assert: parser parse: 'abcd123' to: #($a $b $c $d $1 $2) end: 6.
self assert: parser parse: 'abcde123' to: #($a $b $c $d $e $1 $2) end: 7.
self assert: parser parse: '1234' to: #($1 $2 $3) end: 3.
self assert: parser parse: 'a1234' to: #($a $1 $2 $3) end: 4.
self assert: parser parse: 'ab1234' to: #($a $b $1 $2 $3) end: 5.
self assert: parser parse: 'abc1234' to: #($a $b $c $1 $2 $3) end: 6.
self assert: parser parse: 'abcd1234' to: #($a $b $c $d $1 $2 $3) end: 7.
self assert: parser parse: 'abcde1234' to: #($a $b $c $d $e $1 $2 $3) end: 8
!
testMinLazy
| parser |
parser := #word asParser min: 2 lazy: #digit asParser.
self assert: parser fail: ''.
self assert: parser fail: 'abcde'.
self assert: parser fail: '1'.
self assert: parser fail: 'a1'.
self assert: parser parse: 'ab1' to: #($a $b) end: 2.
self assert: parser parse: 'abc1' to: #($a $b $c) end: 3.
self assert: parser parse: 'abcd1' to: #($a $b $c $d) end: 4.
self assert: parser parse: 'abcde1' to: #($a $b $c $d $e) end: 5.
self assert: parser fail: '12'.
self assert: parser parse: 'a12' to: #($a $1) end: 2.
self assert: parser parse: 'ab12' to: #($a $b) end: 2.
self assert: parser parse: 'abc12' to: #($a $b $c) end: 3.
self assert: parser parse: 'abcd12' to: #($a $b $c $d) end: 4.
self assert: parser parse: 'abcde12' to: #($a $b $c $d $e) end: 5.
self assert: parser parse: '123' to: #($1 $2) end: 2.
self assert: parser parse: 'a123' to: #($a $1) end: 2.
self assert: parser parse: 'ab123' to: #($a $b) end: 2.
self assert: parser parse: 'abc123' to: #($a $b $c) end: 3.
self assert: parser parse: 'abcd123' to: #($a $b $c $d) end: 4.
self assert: parser parse: 'abcde123' to: #($a $b $c $d $e) end: 5.
self assert: parser parse: '1234' to: #($1 $2) end: 2.
self assert: parser parse: 'a1234' to: #($a $1) end: 2.
self assert: parser parse: 'ab1234' to: #($a $b) end: 2.
self assert: parser parse: 'abc1234' to: #($a $b $c) end: 3.
self assert: parser parse: 'abcd1234' to: #($a $b $c $d) end: 4.
self assert: parser parse: 'abcde1234' to: #($a $b $c $d $e) end: 5
!
testMinMax
| parser printString suffix |
parser := $a asParser min: 2 max: 4.
self assert: parser min equals: 2.
self assert: parser max equals: 4.
self assert: parser fail: ''.
self assert: parser fail: 'a'.
self assert: parser parse: 'aa' to: #($a $a).
self assert: parser parse: 'aaa' to: #($a $a $a).
self assert: parser parse: 'aaaa' to: #($a $a $a $a).
self
assert: parser
parse: 'aaaaa'
to: #($a $a $a $a)
end: 4.
self
assert: parser
parse: 'aaaaaa'
to: #($a $a $a $a)
end: 4.
printString := parser printString.
suffix := printString copyFrom: printString size - 5 to: printString size.
self assert: suffix = '[2, 4]'
!
testMinMaxGreedy
| parser |
parser := #word asParser min: 2 max: 4 greedy: #digit asParser.
self assert: parser fail: ''.
self assert: parser fail: 'abcde'.
self assert: parser fail: '1'.
self assert: parser fail: 'a1'.
self assert: parser parse: 'ab1' to: #($a $b) end: 2.
self assert: parser parse: 'abc1' to: #($a $b $c) end: 3.
self assert: parser parse: 'abcd1' to: #($a $b $c $d) end: 4.
self assert: parser fail: 'abcde1'.
self assert: parser fail: '12'.
self assert: parser parse: 'a12' to: #($a $1) end: 2.
self assert: parser parse: 'ab12' to: #($a $b $1) end: 3.
self assert: parser parse: 'abc12' to: #($a $b $c $1) end: 4.
self assert: parser parse: 'abcd12' to: #($a $b $c $d) end: 4.
self assert: parser fail: 'abcde12'.
self assert: parser parse: '123' to: #($1 $2) end: 2.
self assert: parser parse: 'a123' to: #($a $1 $2) end: 3.
self assert: parser parse: 'ab123' to: #($a $b $1 $2) end: 4.
self assert: parser parse: 'abc123' to: #($a $b $c $1) end: 4.
self assert: parser parse: 'abcd123' to: #($a $b $c $d) end: 4.
self assert: parser fail: 'abcde123'.
self assert: parser parse: '1234' to: #($1 $2 $3) end: 3.
self assert: parser parse: 'a1234' to: #($a $1 $2 $3) end: 4.
self assert: parser parse: 'ab1234' to: #($a $b $1 $2) end: 4.
self assert: parser parse: 'abc1234' to: #($a $b $c $1) end: 4.
self assert: parser parse: 'abcd1234' to: #($a $b $c $d) end: 4.
self assert: parser fail: 'abcde1234'
!
testMinMaxLazy
| parser |
parser := #word asParser min: 2 max: 4 lazy: #digit asParser.
self assert: parser fail: ''.
self assert: parser fail: 'abcde'.
self assert: parser fail: '1'.
self assert: parser fail: 'a1'.
self assert: parser parse: 'ab1' to: #($a $b) end: 2.
self assert: parser parse: 'abc1' to: #($a $b $c) end: 3.
self assert: parser parse: 'abcd1' to: #($a $b $c $d) end: 4.
self assert: parser fail: 'abcde1'.
self assert: parser fail: '12'.
self assert: parser parse: 'a12' to: #($a $1) end: 2.
self assert: parser parse: 'ab12' to: #($a $b) end: 2.
self assert: parser parse: 'abc12' to: #($a $b $c) end: 3.
self assert: parser parse: 'abcd12' to: #($a $b $c $d) end: 4.
self assert: parser fail: 'abcde12'.
self assert: parser parse: '123' to: #($1 $2) end: 2.
self assert: parser parse: 'a123' to: #($a $1) end: 2.
self assert: parser parse: 'ab123' to: #($a $b) end: 2.
self assert: parser parse: 'abc123' to: #($a $b $c) end: 3.
self assert: parser parse: 'abcd123' to: #($a $b $c $d) end: 4.
self assert: parser fail: 'abcde123'.
self assert: parser parse: '1234' to: #($1 $2) end: 2.
self assert: parser parse: 'a1234' to: #($a $1) end: 2.
self assert: parser parse: 'ab1234' to: #($a $b) end: 2.
self assert: parser parse: 'abc1234' to: #($a $b $c) end: 3.
self assert: parser parse: 'abcd1234' to: #($a $b $c $d) end: 4.
self assert: parser fail: 'abcde1234'
!
testNegate
| parser |
parser := 'foo' asParser negate.
self assert: parser parse: 'f' to: $f end: 1.
self assert: parser parse: 'fo' to: $f end: 1.
self assert: parser parse: 'fob' to: $f end: 1.
self assert: parser parse: 'ffoo' to: $f end: 1.
self assert: parser fail: ''.
self assert: parser fail: 'foo'
!
testNot
| parser |
parser := 'foo' asParser flatten , 'bar' asParser flatten not.
self assert: parser parse: 'foobaz' to: #('foo' nil) end: 3.
self assert: parser fail: 'foobar'
!
testOptional
| parser |
parser := $a asParser optional.
self assert: parser parse: '' to: nil.
self assert: parser parse: 'a' to: $a.
self assert: parser parse: 'aa' to: $a end: 1.
self assert: parser parse: 'ab' to: $a end: 1.
self assert: parser parse: 'b' to: nil end: 0.
self assert: parser parse: 'bb' to: nil end: 0.
self assert: parser parse: 'ba' to: nil end: 0
!
testPluggable
| block parser |
block := [ :stream | stream position ].
parser := block asParser.
self assert: parser block equals: block
!
testPlus
| parser |
parser := $a asParser plus.
self assert: parser min equals: 1.
self assert: parser max > parser min.
self assert: parser parse: 'a' to: #($a).
self assert: parser parse: 'aa' to: #($a $a).
self assert: parser parse: 'aaa' to: #($a $a $a).
self
assert: parser
parse: 'ab'
to: #($a)
end: 1.
self
assert: parser
parse: 'aab'
to: #($a $a)
end: 2.
self
assert: parser
parse: 'aaab'
to: #($a $a $a)
end: 3.
self assert: parser fail: ''.
self assert: parser fail: 'b'.
self assert: parser fail: 'ba'
!
testPlusGreedy
| limit parser |
limit := #digit asParser.
parser := #word asParser plusGreedy: limit.
self assert: parser min equals: 1.
self assert: parser max > parser min.
self assert: parser limit equals: limit.
self assert: parser children size equals: 2.
self assert: parser children last equals: limit.
self assert: parser fail: ''.
self assert: parser fail: '1'.
self assert: parser fail: 'a'.
self assert: parser fail: 'ab'.
self
assert: parser
parse: 'a1'
to: #($a)
end: 1.
self
assert: parser
parse: 'ab1'
to: #($a $b)
end: 2.
self
assert: parser
parse: 'abc1'
to: #($a $b $c)
end: 3.
self
assert: parser
parse: 'a12'
to: #($a $1)
end: 2.
self
assert: parser
parse: 'ab12'
to: #($a $b $1)
end: 3.
self
assert: parser
parse: 'abc12'
to: #($a $b $c $1)
end: 4.
self
assert: parser
parse: 'a123'
to: #($a $1 $2)
end: 3.
self
assert: parser
parse: 'ab123'
to: #($a $b $1 $2)
end: 4.
self
assert: parser
parse: 'abc123'
to: #($a $b $c $1 $2)
end: 5
!
testPlusLazy
| limit parser |
limit := #digit asParser.
parser := #word asParser plusLazy: limit.
self assert: parser min equals: 1.
self assert: parser max > parser min.
self assert: parser limit equals: limit.
self assert: parser children size equals: 2.
self assert: parser children last equals: limit.
self assert: parser fail: ''.
self assert: parser fail: '1'.
self assert: parser fail: 'a'.
self assert: parser fail: 'ab'.
self
assert: parser
parse: 'a1'
to: #($a)
end: 1.
self
assert: parser
parse: 'ab1'
to: #($a $b)
end: 2.
self
assert: parser
parse: 'abc1'
to: #($a $b $c)
end: 3.
self
assert: parser
parse: 'a12'
to: #($a)
end: 1.
self
assert: parser
parse: 'ab12'
to: #($a $b)
end: 2.
self
assert: parser
parse: 'abc12'
to: #($a $b $c)
end: 3.
self
assert: parser
parse: 'a123'
to: #($a)
end: 1.
self
assert: parser
parse: 'ab123'
to: #($a $b)
end: 2.
self
assert: parser
parse: 'abc123'
to: #($a $b $c)
end: 3
!
testSeparatedBy
| parser |
parser := $a asParser separatedBy: $b asParser.
self assert: parser parse: 'a' to: #($a).
self assert: parser parse: 'aba' to: #($a $b $a).
self assert: parser parse: 'ababa' to: #($a $b $a $b $a).
self assert: parser parse: 'ab' to: #($a) end: 1.
self assert: parser parse: 'abab' to: #($a $b $a) end: 3.
self assert: parser parse: 'ac' to: #($a) end: 1.
self assert: parser parse: 'abac' to: #($a $b $a) end: 3.
self assert: parser fail: ''.
self assert: parser fail: 'c'
!
testSeparatedByWithoutSeparators
| parser |
parser := ($a asParser separatedBy: $b asParser)
withoutSeparators.
self assert: parser parse: 'a' to: #($a).
self assert: parser parse: 'aba' to: #($a $a).
self assert: parser parse: 'ababa' to: #($a $a $a).
self assert: parser parse: 'ab' to: #($a) end: 1.
self assert: parser parse: 'abab' to: #($a $a) end: 3.
self assert: parser parse: 'ac' to: #($a) end: 1.
self assert: parser parse: 'abac' to: #($a $a) end: 3.
self assert: parser fail: ''.
self assert: parser fail: 'c'
!
testSequence
| parser |
parser := $a asParser , $b asParser.
self assert: parser parse: 'ab' to: #($a $b).
self assert: parser parse: 'aba' to: #($a $b) end: 2.
self assert: parser parse: 'abb' to: #($a $b) end: 2.
self assert: parser fail: ''.
self assert: parser fail: 'a'.
self assert: parser fail: 'aa'.
self assert: parser fail: 'ba'.
self assert: parser fail: 'bab'
!
testStar
| parser |
parser := $a asParser star.
self assert: parser min equals: 0.
self assert: parser max > parser min.
self assert: parser parse: '' to: #().
self assert: parser parse: 'a' to: #($a).
self assert: parser parse: 'aa' to: #($a $a).
self assert: parser parse: 'aaa' to: #($a $a $a).
self
assert: parser
parse: 'b'
to: #()
end: 0.
self
assert: parser
parse: 'ab'
to: #($a)
end: 1.
self
assert: parser
parse: 'aab'
to: #($a $a)
end: 2.
self
assert: parser
parse: 'aaab'
to: #($a $a $a)
end: 3
!
testStarGreedy
| limit parser |
limit := #digit asParser.
parser := #word asParser starGreedy: limit.
self assert: parser min equals: 0.
self assert: parser max > parser min.
self assert: parser limit equals: limit.
self assert: parser children size equals: 2.
self assert: parser children last equals: limit.
self assert: parser fail: ''.
self assert: parser fail: 'a'.
self assert: parser fail: 'ab'.
self
assert: parser
parse: '1'
to: #()
end: 0.
self
assert: parser
parse: 'a1'
to: #($a)
end: 1.
self
assert: parser
parse: 'ab1'
to: #($a $b)
end: 2.
self
assert: parser
parse: 'abc1'
to: #($a $b $c)
end: 3.
self
assert: parser
parse: '12'
to: #($1)
end: 1.
self
assert: parser
parse: 'a12'
to: #($a $1)
end: 2.
self
assert: parser
parse: 'ab12'
to: #($a $b $1)
end: 3.
self
assert: parser
parse: 'abc12'
to: #($a $b $c $1)
end: 4.
self
assert: parser
parse: '123'
to: #($1 $2)
end: 2.
self
assert: parser
parse: 'a123'
to: #($a $1 $2)
end: 3.
self
assert: parser
parse: 'ab123'
to: #($a $b $1 $2)
end: 4.
self
assert: parser
parse: 'abc123'
to: #($a $b $c $1 $2)
end: 5
!
testStarLazy
| limit parser |
limit := #digit asParser.
parser := #word asParser starLazy: limit.
self assert: parser min equals: 0.
self assert: parser max > parser min.
self assert: parser limit equals: limit.
self assert: parser children size equals: 2.
self assert: parser children last equals: limit.
self assert: parser fail: ''.
self assert: parser fail: 'a'.
self assert: parser fail: 'ab'.
self
assert: parser
parse: '1'
to: #()
end: 0.
self
assert: parser
parse: 'a1'
to: #($a)
end: 1.
self
assert: parser
parse: 'ab1'
to: #($a $b)
end: 2.
self
assert: parser
parse: 'abc1'
to: #($a $b $c)
end: 3.
self
assert: parser
parse: '12'
to: #()
end: 0.
self
assert: parser
parse: 'a12'
to: #($a)
end: 1.
self
assert: parser
parse: 'ab12'
to: #($a $b)
end: 2.
self
assert: parser
parse: 'abc12'
to: #($a $b $c)
end: 3.
self
assert: parser
parse: '123'
to: #()
end: 0.
self
assert: parser
parse: 'a123'
to: #($a)
end: 1.
self
assert: parser
parse: 'ab123'
to: #($a $b)
end: 2.
self
assert: parser
parse: 'abc123'
to: #($a $b $c)
end: 3
!
testTimes
| parser |
parser := $a asParser times: 2.
self assert: parser fail: ''.
self assert: parser fail: 'a'.
self assert: parser parse: 'aa' to: #($a $a).
self assert: parser parse: 'aaa' to: #($a $a) end: 2
!
testUnresolved
| parser |
parser := PPUnresolvedParser new.
self assert: parser isUnresolved.
self should: [ parser parse: '' ] raise: Error.
self should: [ parser parse: 'a' ] raise: Error.
self should: [ parser parse: 'ab' ] raise: Error.
parser := nil asParser.
self deny: parser isUnresolved
!
testWrapped
| parser |
parser := $a asParser wrapped.
self assert: parser parse: 'a' to: $a.
self assert: parser fail: 'b'.
parser := (($a asParser , $b asParser ) wrapped , $c asParser).
self assert: parser parse: 'abc' to: #(#($a $b) $c)
!
testXor
| parser |
parser := ($a asParser / $b asParser)
| ($b asParser / $c asParser).
self assert: parser parse: 'a' to: $a.
self assert: parser parse: 'c' to: $c.
self assert: parser fail: ''.
self assert: parser fail: 'b'.
self assert: parser fail: 'd'.
" truly symmetric "
parser := ($b asParser / $c asParser)
| ($a asParser / $b asParser).
self assert: parser parse: 'a' to: $a.
self assert: parser parse: 'c' to: $c.
self assert: parser fail: ''.
self assert: parser fail: 'b'.
self assert: parser fail: 'd'
! !
!PPParserTest methodsFor:'testing-accessing'!
testNamed
| parser |
parser := PPSequenceParser new.
self assert: parser name isNil.
parser := PPChoiceParser named: 'choice'.
self assert: parser name equals: 'choice'.
parser := $* asParser name: 'star'.
self assert: parser name equals: 'star'
!
testPrint
| parser |
parser := PPParser new.
self assert: (parser printString includesSubstring: 'PPParser').
parser := PPParser named: 'choice'.
self assert: (parser printString includesSubstring: 'PPParser(choice').
parser := PPLiteralObjectParser on: $a.
self assert: (parser printString includesSubstring: $a printString).
parser := PPFailingParser message: 'error'.
self assert: (parser printString includesSubstring: 'error').
parser := PPPredicateObjectParser on: [ :c | true ] message: 'error'.
self assert: (parser printString includesSubstring: 'error')
! !
!PPParserTest methodsFor:'testing-fixtures'!
testSideEffectChoice
"Adding another element to a choice should create a copy, otherwise we get unwanted side-effects."
| p1 p2 p3 |
p1 := $a asParser.
p2 := p1 / $b asParser.
p3 := p1 / $c asParser.
self assert: p1 parse: 'a'.
self assert: p1 fail: 'b'.
self assert: p1 fail: 'c'.
self assert: p2 parse: 'a'.
self assert: p2 parse: 'b'.
self assert: p2 fail: 'c'.
self assert: p3 parse: 'a'.
self assert: p3 fail: 'b'.
self assert: p3 parse: 'c'
!
testSideEffectListCopy
| old new |
old := $a asParser , $b asParser.
new := old copy.
self deny: old == new.
self deny: old children == new children.
self assert: old children first == new children first.
self assert: old children last == new children last
!
testSideEffectSequence
"Adding another element to a sequence should create a copy, otherwise we get unwanted side-effects."
| p1 p2 p3 |
p1 := $a asParser.
p2 := p1 , $b asParser.
p3 := p1 , $c asParser.
self assert: p1 parse: 'a'.
self assert: p1 parse: 'ab' end: 1.
self assert: p1 parse: 'ac' end: 1.
self assert: p2 fail: 'a'.
self assert: p2 parse: 'ab'.
self assert: p2 fail: 'ac'.
self assert: p3 fail: 'a'.
self assert: p3 fail: 'ab'.
self assert: p3 parse: 'ac'
! !
!PPParserTest methodsFor:'testing-mapping'!
testAction
| block parser |
block := [ :char | char asUppercase ].
parser := #any asParser ==> block.
self assert: parser block equals: block.
self assert: parser parse: 'a' to: $A.
self assert: parser parse: 'b' to: $B
!
testAnswer
| parser |
parser := $a asParser answer: $b.
self assert: parser parse: 'a' to: $b.
self assert: parser fail: ''.
self assert: parser fail: 'b'
!
testFlatten
| parser |
parser := $a asParser flatten.
self assert: parser parse: 'a' to: 'a'.
self assert: parser parse: #($a) to: #($a).
self assert: parser fail: ''.
self assert: parser fail: 'b'
!
testFoldLeft2
| parser |
parser := #any asParser star
foldLeft: [ :a :b | Array with: a with: b ].
self assert: parser parse: #(a) to: #a.
self assert: parser parse: #(a b) to: #(a b).
self assert: parser parse: #(a b c) to: #((a b) c).
self assert: parser parse: #(a b c d) to: #(((a b) c) d).
self assert: parser parse: #(a b c d e) to: #((((a b) c) d) e)
!
testFoldLeft3
| parser |
parser := #any asParser star
foldLeft: [ :a :b :c | Array with: a with: b with: c ].
self assert: parser parse: #(a) to: #a.
self assert: parser parse: #(a b c) to: #(a b c).
self assert: parser parse: #(a b c d e) to: #((a b c) d e)
!
testFoldRight2
| parser |
parser := #any asParser star
foldRight: [ :a :b | Array with: a with: b ].
self assert: parser parse: #(a) to: #a.
self assert: parser parse: #(a b) to: #(a b).
self assert: parser parse: #(a b c) to: #(a (b c)).
self assert: parser parse: #(a b c d) to: #(a (b (c d))).
self assert: parser parse: #(a b c d e) to: #(a (b (c (d e))))
!
testFoldRight3
| parser |
parser := #any asParser star
foldRight: [ :a :b :c | Array with: a with: b with: c ].
self assert: parser parse: #(a) to: #a.
self assert: parser parse: #(a b c) to: #(a b c).
self assert: parser parse: #(a b c d e) to: #(a b (c d e))
!
testMap1
| parser |
parser := #any asParser
map: [ :a | Array with: a ].
self assert: parser parse: #(a) to: #(a)
!
testMap2
| parser |
parser := (#any asParser , #any asParser)
map: [ :a :b | Array with: b with: a ].
self assert: parser parse: #(a b) to: #(b a)
!
testMap3
| parser |
parser := (#any asParser , #any asParser , #any asParser)
map: [ :a :b :c | Array with: c with: b with: a ].
self assert: parser parse: #(a b c) to: #(c b a)
!
testMapFail1
self
should: [ #any asParser map: [ ] ]
raise: Error.
self
should: [ #any asParser map: [ :a :b | ] ]
raise: Error
!
testMapFail2
self
should: [ (#any asParser , #any asParser) map: [ :a | ] ]
raise: Error.
self
should: [ (#any asParser , #any asParser) map: [ :a :b :c | ] ]
raise: Error
!
testPermutation
| parser |
parser := #any asParser , #any asParser , #any asParser.
self assert: (parser permutation: #()) parse: '123' to: #().
self assert: (parser permutation: #(1)) parse: '123' to: #($1).
self assert: (parser permutation: #(1 3)) parse: '123' to: #($1 $3).
self assert: (parser permutation: #(3 1)) parse: '123' to: #($3 $1).
self assert: (parser permutation: #(2 2)) parse: '123' to: #($2 $2).
self assert: (parser permutation: #(3 2 1)) parse: '123' to: #($3 $2 $1).
self should: [ parser permutation: #(0) ] raise: Error.
self should: [ parser permutation: #(4) ] raise: Error.
self should: [ parser permutation: #($2) ] raise: Error
!
testToken
| parser |
parser := $a asParser token.
self assert: parser tokenClass equals: PPToken.
self
assert: parser
parse: 'a'
toToken: 1
stop: 1.
self assert: parser fail: 'b'.
self assert: parser fail: ''.
parser := $a asParser token: PPToken.
self assert: parser tokenClass equals: PPToken.
self
assert: parser
parse: 'a'
toToken: 1
stop: 1.
self assert: parser fail: ''.
self assert: parser fail: 'b'
!
testTrim
| parser |
parser := $a asParser token trim.
self assert: parser parse: 'a' toToken: 1 stop: 1.
self assert: parser parse: 'a ' toToken: 1 stop: 1.
self assert: parser parse: 'a ' toToken: 1 stop: 1.
self assert: parser parse: 'a ' toToken: 1 stop: 1.
self assert: parser parse: 'a
' toToken: 1 stop: 1.
self assert: parser parse: 'a' toToken: 1 stop: 1.
self assert: parser parse: ' a' toToken: 2 stop: 2.
self assert: parser parse: ' a' toToken: 2 stop: 2.
self assert: parser parse: ' a' toToken: 5 stop: 5.
self assert: parser parse: '
a' toToken: 5 stop: 5.
self assert: parser parse: 'aa' toToken: 1 stop: 1 end: 1.
self assert: parser parse: 'a a' toToken: 1 stop: 1 end: 2.
self assert: parser parse: 'a a' toToken: 1 stop: 1 end: 3.
self assert: parser fail: ''.
self assert: parser fail: 'b'
!
testTrimBlanks
| parser |
parser := $a asParser token trimBlanks.
self assert: parser parse: 'a' toToken: 1 stop: 1.
self assert: parser parse: 'a ' toToken: 1 stop: 1.
self assert: parser parse: 'a ' toToken: 1 stop: 1.
self assert: parser parse: 'a ' toToken: 1 stop: 1.
self assert: parser parse: 'a' toToken: 1 stop: 1.
self assert: parser parse: ' a' toToken: 2 stop: 2.
self assert: parser parse: ' a' toToken: 2 stop: 2.
self assert: parser parse: ' a' toToken: 5 stop: 5.
self assert: parser parse: 'aa' toToken: 1 stop: 1 end: 1.
self assert: parser parse: 'a a' toToken: 1 stop: 1 end: 2.
self assert: parser parse: 'a a' toToken: 1 stop: 1 end: 3.
self assert: parser fail: ''.
self assert: parser fail: '
'.
self assert: parser fail: '
a'.
self assert: parser fail: 'b'.
!
testTrimCustom
| parser |
parser := $a asParser token trim: $b asParser.
self assert: parser parse: 'a' toToken: 1 stop: 1.
self assert: parser parse: 'ab' toToken: 1 stop: 1.
self assert: parser parse: 'abb' toToken: 1 stop: 1.
self assert: parser parse: 'a' toToken: 1 stop: 1.
self assert: parser parse: 'ba' toToken: 2 stop: 2.
self assert: parser parse: 'bba' toToken: 3 stop: 3.
self assert: parser parse: 'aa' toToken: 1 stop: 1 end: 1.
self assert: parser parse: 'ab' toToken: 1 stop: 1 end: 2.
self assert: parser parse: 'abba' toToken: 1 stop: 1 end: 3.
self assert: parser fail: ''.
self assert: parser fail: 'b'
!
testTrimSpaces
| parser |
parser := $a asParser token trimSpaces.
self assert: parser parse: 'a' toToken: 1 stop: 1.
self assert: parser parse: 'a ' toToken: 1 stop: 1.
self assert: parser parse: 'a ' toToken: 1 stop: 1.
self assert: parser parse: 'a ' toToken: 1 stop: 1.
self assert: parser parse: 'a
' toToken: 1 stop: 1.
self assert: parser parse: 'a' toToken: 1 stop: 1.
self assert: parser parse: ' a' toToken: 2 stop: 2.
self assert: parser parse: ' a' toToken: 2 stop: 2.
self assert: parser parse: ' a' toToken: 5 stop: 5.
self assert: parser parse: '
a' toToken: 5 stop: 5.
self assert: parser parse: 'aa' toToken: 1 stop: 1 end: 1.
self assert: parser parse: 'a a' toToken: 1 stop: 1 end: 2.
self assert: parser parse: 'a a' toToken: 1 stop: 1 end: 3.
self assert: parser fail: ''.
self assert: parser fail: 'b'
!
testWrapping
| parser result |
parser := #digit asParser plus >=> [ :stream :cc | Array with: stream position with: cc value with: stream position ].
self assert: parser parse: '1' to: #(0 #($1) 1).
self assert: parser parse: '12' to: #(0 #($1 $2) 2).
self assert: parser parse: '123' to: #(0 #($1 $2 $3) 3).
result := parser parse: 'a'.
self assert: result first equals: 0.
self assert: result second isPetitFailure.
self assert: result last equals: 0
! !
!PPParserTest methodsFor:'testing-properties'!
testHasProperty
| parser |
parser := PPParser new.
self deny: (parser hasProperty: #foo).
parser propertyAt: #foo put: 123.
self assert: (parser hasProperty: #foo)
!
testPostCopy
| parser copy |
parser := PPParser new.
parser propertyAt: #foo put: true.
copy := parser copy.
copy propertyAt: #foo put: false.
self assert: (parser propertyAt: #foo).
self deny: (copy propertyAt: #foo)
!
testPropertyAt
| parser |
parser := PPParser new.
self should: [ parser propertyAt: #foo ] raise: Error.
parser propertyAt: #foo put: true.
self assert: (parser propertyAt: #foo)
!
testPropertyAtIfAbsent
| parser |
parser := PPParser new.
self assert: (parser propertyAt: #foo ifAbsent: [ true ]).
parser propertyAt: #foo put: true.
self assert: (parser propertyAt: #foo ifAbsent: [ false ])
!
testPropertyAtIfAbsentPut
| parser |
parser := PPParser new.
self assert: (parser propertyAt: #foo ifAbsentPut: [ true ]).
self assert: (parser propertyAt: #foo ifAbsentPut: [ false ])
!
testRemoveProperty
| parser |
parser := PPParser new.
self should: [ parser removeProperty: #foo ] raise: Error.
parser propertyAt: #foo put: true.
self assert: (parser removeProperty: #foo)
!
testRemovePropertyIfAbsent
| parser |
parser := PPParser new.
self assert: (parser removeProperty: #foo ifAbsent: [ true ]).
parser propertyAt: #foo put: true.
self assert: (parser removeProperty: #foo ifAbsent: [ false ])
! !
!PPParserTest methodsFor:'testing-utilities'!
testChildren
| p1 p2 p3 |
p1 := #lowercase asParser.
p2 := p1 ==> #asUppercase.
p3 := PPUnresolvedParser new.
p3 def: p2 / p3.
self assert: p1 children isEmpty.
self assert: p2 children size equals: 1.
self assert: p3 children size equals: 2
!
testFailure
| failure |
failure := PPFailure message: 'Error' context: PPContext new at: 3.
self assert: failure message equals: 'Error'.
self assert: failure position equals: 3.
self assert: failure isPetitFailure.
self deny: 4 isPetitFailure.
self deny: 'foo' isPetitFailure
!
testListConstructor
| p1 p2 p3 |
p1 := PPChoiceParser with: $a asParser.
p2 := PPChoiceParser with: $a asParser with: $b asParser.
p3 := PPChoiceParser withAll: (Array with: $a asParser with: $b asParser with: $c asParser).
self assert: p1 children size equals: 1.
self assert: p2 children size equals: 2.
self assert: p3 children size equals: 3
!
testMatches
| parser |
parser := $a asParser.
self assert: (parser matches: 'a').
self deny: (parser matches: 'b').
self assert: (parser matches: 'a' readStream).
self deny: (parser matches: 'b' readStream)
!
testMatchesIn
| parser result |
parser := $a asParser.
result := parser matchesIn: 'abba'.
self assert: result size equals: 2.
self assert: result first equals: $a.
self assert: result last equals: $a.
result := parser matchesIn: 'baaah'.
self assert: result size equals: 3.
self assert: result first equals: $a.
self assert: result last equals: $a
!
testMatchesInEmpty
"Empty matches should properly advance and match at each position and at the end."
| parser result |
parser := [ :stream | stream position ] asParser.
result := parser matchesIn: '123'.
self assert: result asArray equals: #(0 1 2 3)
!
testMatchesInOverlapping
"Matches that overlap should be properly reported."
| parser result |
parser := #digit asParser , #digit asParser.
result := parser matchesIn: 'a123b'.
self assert: result size equals: 2.
self assert: result first equals: #($1 $2).
self assert: result last equals: #($2 $3)
!
testMatchesSkipIn
| parser result |
parser := $a asParser.
result := parser matchesSkipIn: 'abba'.
self assert: result size equals: 2.
self assert: result first equals: $a.
self assert: result last equals: $a.
result := parser matchesSkipIn: 'baaah'.
self assert: result size equals: 3.
self assert: result first equals: $a.
self assert: result last equals: $a
!
testMatchesSkipInOverlapping
"Matches that overlap should be properly reported."
| parser result |
parser := #digit asParser , #digit asParser.
result := parser matchesSkipIn: 'a123b'.
self assert: result size equals: 1.
self assert: result first equals: #($1 $2)
!
testMatchingRangesIn
| input parser result |
input := 'a12b3'.
parser := #digit asParser plus.
result := parser matchingRangesIn: input.
result := result collect: [ :each | input copyFrom: each first to: each last ].
self assert: result size equals: 3.
self assert: result first equals: '12'.
self assert: result second equals: '2'.
self assert: result last equals: '3'
!
testMatchingSkipRangesIn
| input parser result |
input := 'a12b3'.
parser := #digit asParser plus.
result := parser matchingSkipRangesIn: input.
result := result collect: [ :each | input copyFrom: each first to: each last ].
self assert: result size equals: 2.
self assert: result first equals: '12'.
self assert: result last equals: '3'
!
testParse
| parser result |
parser := $a asParser.
self assert: (parser parse: 'a') equals: $a.
self assert: (result := parser parse: 'b') isPetitFailure.
self assert: (result message includesSubstring: $a printString).
self assert: (result message includesSubstring: 'expected').
self assert: result position equals: 0.
self assert: (parser parse: 'a' readStream) equals: $a.
self assert: (result := parser parse: 'b' readStream) isPetitFailure.
self assert: (result message includesSubstring: $a printString).
self assert: (result message includesSubstring: 'expected').
self assert: result position equals: 0
!
testParseOnError0
| parser result seen |
parser := $a asParser.
result := parser parse: 'a' onError: [ self signalFailure: 'Not supposed to report an error' ].
self assert: result equals: $a.
result := parser parse: 'b' onError: [ seen := true ].
self assert: result.
self assert: seen
!
testParseOnError1
| parser result seen |
parser := $a asParser.
result := parser parse: 'a' onError: [ self signalFailure: 'Not supposed to report an error' ].
self assert: result equals: $a.
result := parser
parse: 'b'
onError: [ :failure |
self assert: failure position equals: 0.
self assert: (failure message includesSubstring: $a printString).
self assert: (failure message includesSubstring: 'expected').
seen := true ].
self assert: result.
self assert: seen
!
testParseOnError2
| parser result seen |
parser := $a asParser.
result := parser parse: 'a' onError: [ self signalFailure: 'Not supposed to report an error' ].
self assert: result equals: $a.
result := parser
parse: 'b'
onError: [ :msg :pos |
self assert: (msg includesSubstring: $a printString).
self assert: (msg includesSubstring: 'expected').
self assert: pos equals: 0.
seen := true ].
self assert: result.
self assert: seen
!
testParser
| parser |
parser := PPParser new.
self assert: parser isPetitParser.
self deny: 4 isPetitParser.
self deny: 'foo' isPetitParser
! !
!PPParserTest class methodsFor:'documentation'!
version
^ '$Header: /cvs/stx/stx/goodies/petitparser/PPParserTest.st,v 1.4 2014-03-04 14:34:21 cg Exp $'
!
version_CVS
^ '$Header: /cvs/stx/stx/goodies/petitparser/PPParserTest.st,v 1.4 2014-03-04 14:34:21 cg Exp $'
!
version_HG
^ '$Changeset: <not expanded> $'
!
version_SVN
^ '$Id: PPParserTest.st,v 1.4 2014-03-04 14:34:21 cg Exp $'
! !