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node_modules/restructure/test/Number.coffee | 436 lines | 11.8 KiB | text/coffeescript | CoffeeScriptLexer |
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{
uint8,
uint16, uint16be, uint16le,
uint24, uint24be, uint24le,
uint32, uint32be, uint32le,
int8,
int16, int16be, int16le,
int24, int24be, int24le,
int32, int32be, int32le,
float, floatbe, floatle,
double, doublebe, doublele,
fixed16, fixed16be, fixed16le,
fixed32, fixed32be, fixed32le,
DecodeStream, EncodeStream
} = require '../'
should = require('chai').should()
concat = require 'concat-stream'
describe 'Number', ->
describe 'uint8', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0xab, 0xff]
uint8.decode(stream).should.equal 0xab
uint8.decode(stream).should.equal 0xff
it 'should have a size', ->
uint8.size().should.equal 1
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0xab, 0xff]
done()
uint8.encode(stream, 0xab)
uint8.encode(stream, 0xff)
stream.end()
describe 'uint16', ->
it 'is an alias for uint16be', ->
uint16.should.equal uint16be
describe 'uint16be', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0xab, 0xff]
uint16be.decode(stream).should.equal 0xabff
it 'should have a size', ->
uint16be.size().should.equal 2
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0xab, 0xff]
done()
uint16be.encode(stream, 0xabff)
stream.end()
describe 'uint16le', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0xff, 0xab]
uint16le.decode(stream).should.equal 0xabff
it 'should have a size', ->
uint16le.size().should.equal 2
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0xff, 0xab]
done()
uint16le.encode(stream, 0xabff)
stream.end()
describe 'uint24', ->
it 'is an alias for uint24be', ->
uint24.should.equal uint24be
describe 'uint24be', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0xff, 0xab, 0x24]
uint24be.decode(stream).should.equal 0xffab24
it 'should have a size', ->
uint24be.size().should.equal 3
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0xff, 0xab, 0x24]
done()
uint24be.encode(stream, 0xffab24)
stream.end()
describe 'uint24le', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0x24, 0xab, 0xff]
uint24le.decode(stream).should.equal 0xffab24
it 'should have a size', ->
uint24le.size().should.equal 3
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0x24, 0xab, 0xff]
done()
uint24le.encode(stream, 0xffab24)
stream.end()
describe 'uint32', ->
it 'is an alias for uint32be', ->
uint32.should.equal uint32be
describe 'uint32be', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0xff, 0xab, 0x24, 0xbf]
uint32be.decode(stream).should.equal 0xffab24bf
it 'should have a size', ->
uint32be.size().should.equal 4
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0xff, 0xab, 0x24, 0xbf]
done()
uint32be.encode(stream, 0xffab24bf)
stream.end()
describe 'uint32le', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0xbf, 0x24, 0xab, 0xff]
uint32le.decode(stream).should.equal 0xffab24bf
it 'should have a size', ->
uint32le.size().should.equal 4
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0xbf, 0x24, 0xab, 0xff]
done()
uint32le.encode(stream, 0xffab24bf)
stream.end()
describe 'int8', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0x7f, 0xff]
int8.decode(stream).should.equal 127
int8.decode(stream).should.equal -1
it 'should have a size', ->
int8.size().should.equal 1
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0x7f, 0xff]
done()
int8.encode(stream, 127)
int8.encode(stream, -1)
stream.end()
describe 'int16', ->
it 'is an alias for int16be', ->
int16.should.equal int16be
describe 'int16be', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0xff, 0xab]
int16be.decode(stream).should.equal -85
it 'should have a size', ->
int16be.size().should.equal 2
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0xff, 0xab]
done()
int16be.encode(stream, -85)
stream.end()
describe 'int16le', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0xab, 0xff]
int16le.decode(stream).should.equal -85
it 'should have a size', ->
int16le.size().should.equal 2
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0xab, 0xff]
done()
int16le.encode(stream, -85)
stream.end()
describe 'int24', ->
it 'is an alias for int24be', ->
int24.should.equal int24be
describe 'int24be', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0xff, 0xab, 0x24]
int24be.decode(stream).should.equal -21724
it 'should have a size', ->
int24be.size().should.equal 3
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0xff, 0xab, 0x24]
done()
int24be.encode(stream, -21724)
stream.end()
describe 'int24le', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0x24, 0xab, 0xff]
int24le.decode(stream).should.equal -21724
it 'should have a size', ->
int24le.size().should.equal 3
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0x24, 0xab, 0xff]
done()
int24le.encode(stream, -21724)
stream.end()
describe 'int32', ->
it 'is an alias for int32be', ->
int32.should.equal int32be
describe 'int32be', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0xff, 0xab, 0x24, 0xbf]
int32be.decode(stream).should.equal -5561153
it 'should have a size', ->
int32be.size().should.equal 4
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0xff, 0xab, 0x24, 0xbf]
done()
int32be.encode(stream, -5561153)
stream.end()
describe 'int32le', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0xbf, 0x24, 0xab, 0xff]
int32le.decode(stream).should.equal -5561153
it 'should have a size', ->
int32le.size().should.equal 4
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0xbf, 0x24, 0xab, 0xff]
done()
int32le.encode(stream, -5561153)
stream.end()
describe 'float', ->
it 'is an alias for floatbe', ->
float.should.equal floatbe
describe 'floatbe', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0x43, 0x7a, 0x8c, 0xcd]
floatbe.decode(stream).should.be.closeTo 250.55, 0.005
it 'should have a size', ->
floatbe.size().should.equal 4
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0x43, 0x7a, 0x8c, 0xcd]
done()
floatbe.encode(stream, 250.55)
stream.end()
describe 'floatle', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0xcd, 0x8c, 0x7a, 0x43]
floatle.decode(stream).should.be.closeTo 250.55, 0.005
it 'should have a size', ->
floatle.size().should.equal 4
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0xcd, 0x8c, 0x7a, 0x43]
done()
floatle.encode(stream, 250.55)
stream.end()
describe 'double', ->
it 'is an alias for doublebe', ->
double.should.equal doublebe
describe 'doublebe', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0x40, 0x93, 0x4a, 0x3d, 0x70, 0xa3, 0xd7, 0x0a]
doublebe.decode(stream).should.be.equal 1234.56
it 'should have a size', ->
doublebe.size().should.equal 8
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0x40, 0x93, 0x4a, 0x3d, 0x70, 0xa3, 0xd7, 0x0a]
done()
doublebe.encode(stream, 1234.56)
stream.end()
describe 'doublele', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0x0a, 0xd7, 0xa3, 0x70, 0x3d, 0x4a, 0x93, 0x40]
doublele.decode(stream).should.be.equal 1234.56
it 'should have a size', ->
doublele.size().should.equal 8
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0x0a, 0xd7, 0xa3, 0x70, 0x3d, 0x4a, 0x93, 0x40]
done()
doublele.encode(stream, 1234.56)
stream.end()
describe 'fixed16', ->
it 'is an alias for fixed16be', ->
fixed16.should.equal fixed16be
describe 'fixed16be', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0x19, 0x57]
fixed16be.decode(stream).should.be.closeTo 25.34, 0.005
it 'should have a size', ->
fixed16be.size().should.equal 2
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0x19, 0x57]
done()
fixed16be.encode(stream, 25.34)
stream.end()
describe 'fixed16le', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0x57, 0x19]
fixed16le.decode(stream).should.be.closeTo 25.34, 0.005
it 'should have a size', ->
fixed16le.size().should.equal 2
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0x57, 0x19]
done()
fixed16le.encode(stream, 25.34)
stream.end()
describe 'fixed32', ->
it 'is an alias for fixed32be', ->
fixed32.should.equal fixed32be
describe 'fixed32be', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0x00, 0xfa, 0x8c, 0xcc]
fixed32be.decode(stream).should.be.closeTo 250.55, 0.005
it 'should have a size', ->
fixed32be.size().should.equal 4
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0x00, 0xfa, 0x8c, 0xcc]
done()
fixed32be.encode(stream, 250.55)
stream.end()
describe 'fixed32le', ->
it 'should decode', ->
stream = new DecodeStream new Buffer [0xcc, 0x8c, 0xfa, 0x00]
fixed32le.decode(stream).should.be.closeTo 250.55, 0.005
it 'should have a size', ->
fixed32le.size().should.equal 4
it 'should encode', (done) ->
stream = new EncodeStream
stream.pipe concat (buf) ->
buf.should.deep.equal new Buffer [0xcc, 0x8c, 0xfa, 0x00]
done()
fixed32le.encode(stream, 250.55)
stream.end()