"{ Package: 'exept:regression' }"

"{ NameSpace: Rel5 }"

TestCase subclass:#ExternalStreamTest

	instanceVariableNames:''

	classVariableNames:''

	poolDictionaries:''

	category:'Streams-New-Tests'

!

!ExternalStreamTest methodsFor:'tests'!

createWithSize10:fileName

    "helper"

    (fileName asFilename exists) ifTrue:[

	fileName asFilename delete

    ].

    fileName asFilename writeStream 

	nextPutAll:'1234567890';

	close.

    self assert:(fileName asFilename exists).

    self assert:(fileName asFilename fileSize == 10).

    "

     self new createWithSize10:'xxx1'

    "

!

testPosition1

    |h s ch|

    self createWithSize10:'xxx3'.

    h := OperatingSystem openFileForRead:'xxx3'.

    s := ExternalReadStream on:h.

    self assert:( s atEnd not ).

    self assert:( s position == 0 ).

    ch := s next.

    self assert:( ch = $1 ).

    self assert:( s position == 1 ).

    s skip:1.

    self assert:( s position == 2 ).

    self assert:( s peek = $3 ).

    self assert:( s position == 2 ).

    s skip:1.

    self assert:( s position == 3 ).

    self assert:( s peek = $4 ).

    self assert:( s position == 3 ).

    s close.

    'xxx3' asFilename delete.

    "

     self new testPosition1

    "

!

testRead1

    "open an existing file for reading; should read 10 chars"

    |h s nBytesRead|

    self createWithSize10:'xxx3'.

    h := OperatingSystem openFileForRead:'xxx3'.

    s := ExternalReadStream on:h.

    '1234567890' do:[:eachExpected |

        self assert:( s next == eachExpected ).

    ].

    s close.

    'xxx3' asFilename delete.

    "

     self new testRead1

    "

!

testRead2

    "open an existing file for reading; should read 10 chars"

    |h s|

    self createWithSize10:'xxx3'.

    h := OperatingSystem openFileForRead:'xxx3'.

    s := ExternalReadStream on:h.

    s binary.

    '1234567890' do:[:eachExpected |

        |eachRead|

        eachRead := s next.

        self assert:( eachRead == eachExpected asciiValue ).

    ].

    s close.

    'xxx3' asFilename delete.

    "

     self new testRead2

    "

!

testRead3

    "open an existing file for reading; should read 10 chars"

    |h s bytesRead|

    self createWithSize10:'xxx3'.

    h := OperatingSystem openFileForRead:'xxx3'.

    s := ExternalReadStream on:h.

    self assert:( s atEnd not ).

    bytesRead := s next:10.

    self assert:( bytesRead = '1234567890' ).

    self assert:( s atEnd ).

    s close.

    'xxx3' asFilename delete.

    "

     self new testRead3

    "

! !

!ExternalStreamTest class methodsFor:'documentation'!

version

    ^ '$Header$'

! !