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132 lines
4.2 KiB
CoffeeScript
132 lines
4.2 KiB
CoffeeScript
{String:StringT, uint8, DecodeStream, EncodeStream} = require '../'
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should = require('chai').should()
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concat = require 'concat-stream'
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describe 'String', ->
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describe 'decode', ->
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it 'should decode fixed length', ->
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stream = new DecodeStream new Buffer 'testing'
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string = new StringT 7
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string.decode(stream).should.equal 'testing'
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it 'should decode length from parent key', ->
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stream = new DecodeStream new Buffer 'testing'
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string = new StringT 'len'
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string.decode(stream, len: 7).should.equal 'testing'
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it 'should decode length as number before string', ->
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stream = new DecodeStream new Buffer '\x07testing'
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string = new StringT uint8
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string.decode(stream).should.equal 'testing'
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it 'should decode utf8', ->
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stream = new DecodeStream new Buffer '🍻'
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string = new StringT 4, 'utf8'
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string.decode(stream).should.equal '🍻'
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it 'should decode encoding computed from function', ->
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stream = new DecodeStream new Buffer '🍻'
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string = new StringT 4, -> 'utf8'
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string.decode(stream).should.equal '🍻'
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it 'should decode null-terminated string and read past terminator', ->
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stream = new DecodeStream new Buffer '🍻\x00'
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string = new StringT null, 'utf8'
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string.decode(stream).should.equal '🍻'
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stream.pos.should.equal 5
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it 'should decode remainder of buffer when null-byte missing', ->
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stream = new DecodeStream new Buffer '🍻'
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string = new StringT null, 'utf8'
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string.decode(stream).should.equal '🍻'
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describe 'size', ->
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it 'should use string length', ->
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string = new StringT 7
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string.size('testing').should.equal 7
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it 'should use correct encoding', ->
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string = new StringT 10, 'utf8'
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string.size('🍻').should.equal 4
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it 'should use encoding from function', ->
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string = new StringT 10, -> 'utf8'
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string.size('🍻').should.equal 4
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it 'should add size of length field before string', ->
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string = new StringT uint8, 'utf8'
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string.size('🍻').should.equal 5
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it 'should work with utf16be encoding', ->
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string = new StringT 10, 'utf16be'
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string.size('🍻').should.equal 4
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it 'should take null-byte into account', ->
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string = new StringT null, 'utf8'
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string.size('🍻').should.equal 5
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it 'should use defined length if no value given', ->
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array = new StringT 10
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array.size().should.equal 10
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describe 'encode', ->
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it 'should encode using string length', (done) ->
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stream = new EncodeStream
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stream.pipe concat (buf) ->
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buf.should.deep.equal new Buffer 'testing'
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done()
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string = new StringT 7
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string.encode(stream, 'testing')
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stream.end()
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it 'should encode length as number before string', (done) ->
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stream = new EncodeStream
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stream.pipe concat (buf) ->
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buf.should.deep.equal new Buffer '\x07testing'
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done()
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string = new StringT uint8
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string.encode(stream, 'testing')
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stream.end()
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it 'should encode length as number before string utf8', (done) ->
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stream = new EncodeStream
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stream.pipe concat (buf) ->
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buf.should.deep.equal new Buffer '\x0ctesting 😜', 'utf8'
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done()
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string = new StringT uint8, 'utf8'
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string.encode(stream, 'testing 😜')
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stream.end()
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it 'should encode utf8', (done) ->
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stream = new EncodeStream
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stream.pipe concat (buf) ->
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buf.should.deep.equal new Buffer '🍻'
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done()
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string = new StringT 4, 'utf8'
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string.encode(stream, '🍻')
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stream.end()
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it 'should encode encoding computed from function', (done) ->
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stream = new EncodeStream
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stream.pipe concat (buf) ->
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buf.should.deep.equal new Buffer '🍻'
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done()
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string = new StringT 4, -> 'utf8'
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string.encode(stream, '🍻')
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stream.end()
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it 'should encode null-terminated string', (done) ->
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stream = new EncodeStream
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stream.pipe concat (buf) ->
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buf.should.deep.equal new Buffer '🍻\x00'
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done()
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string = new StringT null, 'utf8'
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string.encode(stream, '🍻')
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stream.end()
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