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113 lines
3.4 KiB
Racket
113 lines
3.4 KiB
Racket
#lang restructure/test/racket
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approximates
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https://github.com/mbutterick/restructure/blob/master/test/LazyArray.coffee
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|#
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;describe 'LazyArray', ->
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; describe 'decode', ->
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; it 'should decode items lazily', ->
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; stream = new DecodeStream new Buffer [1, 2, 3, 4, 5]
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; array = new LazyArray uint8, 4
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;
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; arr = array.decode(stream)
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; arr.should.not.be.an.instanceof Array
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; arr.should.have.length 4
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; stream.pos.should.equal 4
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;
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; arr.get(0).should.equal 1
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; arr.get(1).should.equal 2
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; arr.get(2).should.equal 3
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; arr.get(3).should.equal 4
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;
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; should.not.exist arr.get(-1)
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; should.not.exist arr.get(5)
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(let* ([stream (+DecodeStream (+Buffer '(1 2 3 4 5)))]
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[array (+LazyArray uint8 4)])
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(define arr (send array decode stream))
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(check-false (Array? arr))
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(check-equal? (ref arr 'len) 4)
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(check-equal? (send stream pos) 4)
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(check-equal? (send arr get 0) 1)
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(check-equal? (send arr get 1) 2)
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(check-equal? (send arr get 2) 3)
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(check-equal? (send arr get 3) 4))
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;
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; it 'should be able to convert to an array', ->
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; stream = new DecodeStream new Buffer [1, 2, 3, 4, 5]
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; array = new LazyArray uint8, 4
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;
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; arr = array.decode(stream)
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; arr.toArray().should.deep.equal [1, 2, 3, 4]
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(let* ([stream (+DecodeStream (+Buffer '(1 2 3 4 5)))]
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[array (+LazyArray uint8 4)])
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(define arr (send array decode stream))
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(check-equal? (send arr to-list) '(1 2 3 4)))
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;
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; it 'should have an inspect method', ->
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; stream = new DecodeStream new Buffer [1, 2, 3, 4, 5]
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; array = new LazyArray uint8, 4
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;
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; arr = array.decode(stream)
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; arr.inspect().should.equal '[ 1, 2, 3, 4 ]'
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#;(let* ([stream (+DecodeStream (+Buffer '(1 2 3 4 5)))]
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[array (+LazyArray uint8 4)])
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(define arr (send array decode stream))
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(check-equal? (send arr inspect) (format "~a" '(1 2 3 4))))
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;
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; it 'should decode length as number before array', ->
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; stream = new DecodeStream new Buffer [4, 1, 2, 3, 4, 5]
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; array = new LazyArray uint8, uint8
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; arr = array.decode(stream)
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;
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; arr.toArray().should.deep.equal [1, 2, 3, 4]
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(let* ([stream (+DecodeStream (+Buffer '(4 1 2 3 4 5)))]
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[array (+LazyArray uint8 uint8)])
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(define arr (send array decode stream))
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(check-equal? (send arr to-list) '(1 2 3 4)))
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;
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; describe 'size', ->
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; it 'should work with LazyArrays', ->
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; stream = new DecodeStream new Buffer [1, 2, 3, 4, 5]
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; array = new LazyArray uint8, 4
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; arr = array.decode(stream)
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;
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; array.size(arr).should.equal 4
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(let* ([stream (+DecodeStream (+Buffer '(1 2 3 4 5)))]
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[array (+LazyArray uint8 4)])
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(define arr (send array decode stream))
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(check-equal? (send array size arr) 4))
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;
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; describe 'encode', ->
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; it 'should work with LazyArrays', (done) ->
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; stream = new DecodeStream new Buffer [1, 2, 3, 4, 5]
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; array = new LazyArray uint8, 4
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; arr = array.decode(stream)
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;
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; enc = new EncodeStream
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; enc.pipe concat (buf) ->
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; buf.should.deep.equal new Buffer [1, 2, 3, 4]
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; done()
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;
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; array.encode(enc, arr)
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; enc.end()
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(let* ([stream (+DecodeStream (+Buffer '(1 2 3 4 5)))]
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[array (+LazyArray uint8 4)])
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(define arr (send array decode stream))
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(define enc (+EncodeStream))
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(send array encode enc arr)
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(check-equal? (send enc dump) (+Buffer '(1 2 3 4)))) |