#QUALITY by cg
class: RegressionTests::StreamTests
added: #test21_readWriteStreamWithPosition
changed: #test20_readWriteStream
"{ Package: 'exept:regression' }"
"{ NameSpace: RegressionTests }"
TestCase subclass:#StreamTests
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'tests-Regression-Streams'
!
!StreamTests class methodsFor:'documentation'!
documentation
"
documentation to be added.
[author:]
cg
[instance variables:]
[class variables:]
[see also:]
"
! !
!StreamTests class methodsFor:'queries'!
coveredClassNames
^ #(
'PositionableStream'
'ReadStream'
'WriteStream'
'Stream'
)
"Created: / 16-09-2011 / 14:56:05 / cg"
! !
!StreamTests methodsFor:'setup'!
setUp
(Smalltalk classNamed:'stx_libcompat') isNil ifTrue:[
(Smalltalk loadPackage:'stx:libcompat') ifFalse:[
self error:'libcompat cannot be loaded'.
].
].
(Smalltalk classNamed:'stx_libcompat') load.
! !
!StreamTests methodsFor:'tests'!
test01_numberReading_squeak
|b s val|
b := #[1 2 3 4].
s := b readStream.
val := s nextLittleEndianNumber:4.
self assert:val = 16r04030201.
self assert:( s atEnd ).
self assert:( val := #[16r81 16r82 16r83 16r84] readStream nextLittleEndianNumber:4 ) = 16r84838281.
self assert:( val := #[16r81 16r82 16r83 16r84 16r85 16r86 16r87 16r88] readStream nextLittleEndianNumber:8 ) = 16r8887868584838281.
"/ signed
self assert:( val := #[16r01 16r02 16r03 16r04] readStream nextLongMSB:true ) = 16r01020304.
self assert:( val := #[16rFF 16rFF 16rFF 16rFF] readStream nextLongMSB:true ) = -1.
self assert:( val := #[16r80 16r00 16r00 16r00] readStream nextLongMSB:true ) = -2147483648.
s := WriteStream on:ByteArray new.
s nextPutLong:16r01020304 MSB:true.
self assert:( val := s contents ) = #[16r01 16r02 16r03 16r04].
s := WriteStream on:ByteArray new.
s nextLittleEndianNumber:4 put:16r01020304.
self assert:( val := s contents ) = #[16r04 16r03 16r02 16r01].
s := WriteStream on:ByteArray new.
s nextLittleEndianNumber:8 put:16r0102030405060708.
self assert:( val := s contents ) = #[16r08 16r07 16r06 16r05 16r04 16r03 16r02 16r01].
"
self run:#test01_numberReading
self new test01_numberReading
"
"Created: / 16-09-2011 / 15:26:10 / cg"
!
test02_readStream
{
#($a $b $c $d $a $b $c $d $a $b $c $d $a $b $c $d) .
#[97 98 99 100 97 98 99 100 97 98 99 100] .
'abcdabcdabcdabcd' .
'abcdabcdabcdabcd' asUnicode16String .
'abcdabcdabcdabcd' asUnicode32String .
} do:[:coll|
|s e t|
s := coll readStream.
"/ initial state?
self assert:(s atEnd not).
self assert:(s position == 0).
"/ peek returns the correct value
e := s peek.
self assert:(e asInteger == 97).
"/ peek should not change any state
self assert:(s atEnd not).
self assert:(s position == 0).
e := s next.
self assert:(e asInteger == 97).
self assert:(s position == 1).
self assert:(s atEnd not).
e := s peek.
self assert:(s position == 1).
self assert:(e asInteger == 98).
s position:0.
self assert:(s atEnd not).
self assert:(s position == 0).
e := s peek.
self assert:(e asInteger == 97).
s position:coll size.
self assert:(s atEnd).
self assert:(s position == coll size).
s position:0.
self assert:(s position == 0).
e := s peek.
self assert:(e asInteger == 97).
t := s next:2.
self assert:(t size == 2).
self assert:(t at:1) asInteger == 97.
self assert:(t at:2) asInteger == 98.
self assert:(s position == 2).
s position:1.
self assert:(s position == 1).
e := s peek.
self assert:(e asInteger == 98).
t := s upTo:(coll at:1).
self assert:(t size == 3).
self assert:(t at:1) == (coll at:2).
self assert:(t at:2) == (coll at:3).
self assert:(t at:3) == (coll at:4).
self assert:(s position == 5).
self assert:(s peek asInteger == (coll at:2) asInteger).
s position:1.
(coll at:1) isCharacter ifTrue:[
s skipSeparators.
self assert:(s position == 1).
].
s position:(coll size - 1).
t := s upToEnd.
self assert:(s position == coll size).
self assert:(t size == 1).
self assert:(t at:1) == (coll at:coll size).
s position:0.
(coll at:1) isCharacter ifTrue:[
t := s nextAlphaNumericWord.
self assert:(t asArray = coll asArray).
self assert:(s position == coll size).
].
].
"
self run:#test02_readStream
self new test02_readStream
"
!
test03_readStream
{
#($a $b $c $d $ $a $b $c $d $a $b $c $d $a $b $c $d) .
#[97 98 99 100 20 97 98 99 100 97 98 99 100] .
'abcd abcdabcdabcd' .
'abcd abcdabcdabcd' asUnicode16String .
'abcd abcdabcdabcd' asUnicode32String .
} do:[:coll|
|s e t|
s := coll readStream.
s position:3.
(coll at:1) isCharacter ifTrue:[
s skipSeparators.
self assert:(s position == 3).
s next.
s skipSeparators.
self assert:(s position == 5).
].
s position:0.
(coll at:1) isCharacter ifTrue:[
t := s nextAlphaNumericWord.
self assert:(t asArray = (coll asArray copyTo:4)).
self assert:(s position == 4).
].
].
"
self run:#test02_readStream
self new test02_readStream
"
!
test04_readIntegers
|s n|
"0123456789012345678901"
s := '1234 56789 123 ' readStream.
self assert:((n := s nextDecimalInteger) == 1234).
self assert:(s position == 4).
s skipSeparators.
self assert:(s position == 5).
self assert:((n := s nextDecimalInteger) == 56789).
self assert:(s position == 10).
s skipSeparators.
self assert:(s position == 14).
self assert:((n := s nextDecimalInteger) == 123).
self assert:(s position == 17).
"/ is this the correct behavior?
self assert:((n := s nextDecimalInteger) == 0).
self assert:(s position == 17).
"
self run:#test04_readIntegers
self new test04_readIntegers
"
!
test05_readAlphanumericWords
|s w|
"0123456789012345678901"
s := 'a234 b6789 c23 ' readStream.
self assert:((w := s nextAlphaNumericWord) = 'a234').
self assert:(s position == 4).
self assert:((w := s nextAlphaNumericWord) = 'b6789').
self assert:(s position == 10).
self assert:((w := s nextAlphaNumericWord) = 'c23').
self assert:(s position == 17).
"/ is this the correct behavior?
self assert:((w := s nextAlphaNumericWord) isNil).
self assert:(s position == 21).
"
self run:#test05_readAlphanumericWords
self new test05_readAlphanumericWords
"
!
test06_writeStream
|s|
"0123456789012345678901"
s := WriteStream on:(String new).
self assert:(s position == 0).
self assert:(s readLimit == 0).
s nextPut:$a.
self assert:(s position == 1).
self assert:(s contents = 'a').
self assert:(s readLimit == 1).
s nextPut:$b.
self assert:(s position == 2).
self assert:(s contents = 'ab').
self assert:(s readLimit == 2).
s nextPut:$c.
self assert:(s position == 3).
"/ self assert:(s contents = 'abc').
self assert:(s readLimit == 3).
"/ fill to right before it has to resize
s position to:(s collection size) do:[:i | s nextPut:$0+(i\\10)].
self assert:(s contents = ('abc345678901234567890' copyTo:s size)).
"
self run:#test06_writeStream
self new test06_writeStream
"
!
test07_writeStream
|s|
"0123456789012345678901"
s := '' writeStream.
s nextPut:$a.
self assert:(s last) == $a.
self assert:(s last:1) = 'a'.
s nextPut:$b.
self assert:(s last) == $b.
self assert:(s last:1) = 'b'.
self assert:(s last:2) = 'ab'.
s nextPut:$c.
self assert:(s last) == $c.
self assert:(s last:1) = 'c'.
self assert:(s last:2) = 'bc'.
self assert:(s last:3) = 'abc'.
s nextPutAll:'123'.
self assert:(s last) == $3.
self assert:(s last:1) = '3'.
self assert:(s last:2) = '23'.
self assert:(s last:3) = '123'.
s next:1 put:$4.
self assert:(s last) == $4.
self assert:(s last:1) = '4'.
self assert:(s last:2) = '34'.
self assert:(s last:3) = '234'.
self assert:(s size == 7).
s next:3 put:$5.
self assert:(s last) == $5.
self assert:(s last:1) = '5'.
self assert:(s last:2) = '55'.
self assert:(s last:3) = '555'.
self assert:(s last:4) = '4555'.
self assert:(s size == 10).
"
self run:#test07_writeStream
self new test07_writeStream
"
!
test08_writeStream
|s|
s := '' writeStream.
s nextPutAll:'hello '.
s nextPutAll:'1234world012345' startingAt:5 to:9.
self assert:( s contents = 'hello world' ).
s := '' writeStream.
s nextPutAll:'hello'.
s space.
s nextPutAll:'world'.
self assert:( s contents = 'hello world' ).
"
self run:#test08_writeStream
self new test08_writeStream
"
!
test09_writeStreamErrors
|s|
s := '' writeStream.
self should:[ s nextPutAll:nil ] raise:Error.
self assert:( s contents = '' ).
"
self run:#test09_writeStreamErrors
self new test09_writeStreamErrors
"
!
test20_readWriteStream
|s ch string|
"0123456789012345678901"
s := ReadWriteStream on:(String new).
self assert:(s position == 0).
self assert:(s readLimit == 0).
s nextPutAll:'hello'.
self assert:(s position == 5).
self assert:(s contents = 'hello').
self assert:(s readLimit == 5).
s nextPut:Character space.
self assert:(s position == 6).
self assert:(s contents = 'hello ').
self assert:(s readLimit == 6).
s nextPutAll:'world'.
self assert:(s position == 11).
self assert:(s contents = 'hello world').
self assert:(s readLimit == 11).
s reset.
self assert:(s position == 0).
self assert:(s readLimit == 11).
ch := s next.
self assert:(ch == $h).
string := s next:4.
self assert:(string = 'ello').
s reset.
self assert:(s position == 0).
self assert:(s readLimit == 11).
string := s upToEnd.
self assert:(string = 'hello world').
"
self run:#test20_readWriteStream
self new test20_readWriteStream
"
!
test21_readWriteStreamWithPosition
|s|
"0123456789012345678901"
s := ReadWriteStream on:(String new).
self assert:(s position == 0).
self assert:(s readLimit == 0).
s nextPutAll:'hello'.
self assert:(s position == 5).
self assert:(s readLimit == 5).
s nextPutAll:' world'.
self assert:(s position == 11).
self assert:(s readLimit == 11).
s position:(s position - 5).
self assert:(s upToEnd = 'world').
self assert:(s position = 11).
self assert:(s readLimit = 11).
"
self run:#test21_readWriteStreamWithPosition
self new test21_readWriteStreamWithPosition
"
!
test30_readWriteBinary
|testVector s val|
#(
0 #[ 0 0 ]
1 #[ 0 1 ]
16r7F #[ 0 16r7F ]
16r80 #[ 0 16r80 ]
16rFF #[ 0 16rFF ]
16r100 #[ 1 16r00 ]
16r7FFF #[ 16r7F 16rFF ]
-1 #[ 16rFF 16rFF ]
-16r7F #[ 16rFF 16r81 ]
-16r80 #[ 16rFF 16r80 ]
-16rFF #[ 16rFF 16r01 ]
-16r7FFF #[ 16r80 16r01 ]
-16r8000 #[ 16r80 16r00 ]
) pairWiseDo:[:val :expected |
s := WriteStream on:(ByteArray new).
s nextPutShort:val MSB:true.
self assert:(s contents = expected).
s := WriteStream on:(ByteArray new).
s nextPutShort:val MSB:false.
self assert:(s contents reversed = expected).
[
s := 'testData' asFilename writeStream.
s nextPutShort:val MSB:true.
s close.
self assert:('testData' asFilename binaryContentsOfEntireFile = expected).
s := 'testData' asFilename writeStream.
s nextPutShort:val MSB:false.
s close.
self assert:('testData' asFilename binaryContentsOfEntireFile reversed = expected).
] ensure:[
'testData' asFilename delete
].
].
#(
nextPutShort:MSB: nextShortMSB:
nextPutLong:MSB: nextLongMSB:
nextPutHyper:MSB: nextHyperMSB:
nextPutInt16:MSB: nextInt16MSB:
nextPutInt32:MSB: nextInt32MSB:
nextPutInt64:MSB: nextInt64MSB:
) pairWiseDo:[:writer :reader |
#(true false) do:[:msb |
testVector :=
#(
0 1 -1
16r7f 16r80 16r81
-16r7f -16r80 -16r81
16r7fff -16r7fff -16r8000
).
s := ReadWriteStream on:(ByteArray new).
testVector do:[:written |
s perform:writer with:written with:msb.
].
s reset.
testVector do:[:expected |
self assert:(val := s perform:reader with:msb) == expected.
].
"/ ----
[
s := 'testData' asFilename writeStream.
testVector do:[:written |
s perform:writer with:written with:msb.
].
s close.
s := 'testData' asFilename readStream.
testVector do:[:expected |
self assert:(val := s perform:reader with:msb) == expected.
].
s close.
] ensure:[
'testData' asFilename delete
]
].
].
"
self run:#test30_readWriteBinary
self new test30_readWriteBinary
"
!
test31_readWriteBinaryIntegers
|s|
#(
0 1 #[ 0 ]
0 2 #[ 0 0 ]
0 3 #[ 0 0 0 ]
0 4 #[ 0 0 0 0]
0 6 #[ 0 0 0 0 0 0]
1 1 #[ 1 ]
1 2 #[ 0 1 ]
1 3 #[ 0 0 1 ]
1 4 #[ 0 0 0 1 ]
1 6 #[ 0 0 0 0 0 1 ]
16r8000 2 #[ 16r80 16r00 ]
16r8000 3 #[ 16r00 16r80 16r00 ]
16r8000 4 #[ 16r00 16r00 16r80 16r00 ]
16r8000 5 #[ 16r00 16r00 16r00 16r80 16r00 ]
16r8000 6 #[ 16r00 16r00 16r00 16r00 16r80 16r00 ]
16r12345678 4 #[ 16r12 16r34 16r56 16r78 ]
16r12345678 5 #[ 16r00 16r12 16r34 16r56 16r78 ]
16r12345678 6 #[ 16r00 16r00 16r12 16r34 16r56 16r78 ]
16r87654321 4 #[ 16r87 16r65 16r43 16r21 ]
16r87654321 5 #[ 16r00 16r87 16r65 16r43 16r21 ]
16r87654321 6 #[ 16r00 16r00 16r87 16r65 16r43 16r21 ]
) inGroupsOf:3 do:[:val :nBytes :expected |
s := WriteStream on:(ByteArray new).
s nextNumber:nBytes put:val MSB:true.
self assert:(s contents = expected).
s := WriteStream on:(ByteArray new).
s nextNumber:nBytes put:val MSB:false.
self assert:(s contents reversed = expected).
"/ because external streams may have specially tuned output methods,
"/ test them also
[
s := 'testData' asFilename writeStream.
s nextNumber:nBytes put:val MSB:true.
s close.
self assert:('testData' asFilename binaryContentsOfEntireFile = expected).
s := 'testData' asFilename writeStream.
s nextNumber:nBytes put:val MSB:false.
s close.
self assert:('testData' asFilename binaryContentsOfEntireFile reversed = expected).
] ensure:[
'testData' asFilename delete
].
].
"
self run:#test31_readWriteBinaryIntegers
self new test31_readWriteBinaryIntegers
"
! !
!StreamTests class methodsFor:'documentation'!
version
^ '$Header$'
!
version_CVS
^ '$Header$'
! !