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336 lines
11 KiB
Racket
336 lines
11 KiB
Racket
#lang racket/base
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(require "racket.rkt")
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#|
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approximates
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https://github.com/mbutterick/restructure/blob/master/test/Number.coffee
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|#
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;describe 'Number', ->
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; describe 'uint8', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(parameterize ([current-input-port (open-input-bytes (bytes #xab #xff))])
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(check-equal? (decode uint8) #xab)
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(check-equal? (decode uint8) #xff))
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(check-equal? (size uint8) 1)
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(let ([port (open-output-bytes)])
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(encode uint8 #xab port)
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(encode uint8 #xff port)
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(check-equal? (dump port) (bytes #xab #xff)))
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; describe 'uint16', ->
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; it 'is an alias for uint16be', ->
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; modified test: `uint16` is the same endianness as the platform
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(check-equal? (decode uint16 (bytes 0 1)) (send (if (system-big-endian?)
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uint16be
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uint16le) decode (bytes 0 1)))
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; describe 'uint16be', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-equal? (decode uint16be (open-input-bytes (bytes #xab #xff))) #xabff)
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(check-equal? (size uint16be) 2)
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(check-equal? (encode uint16be #xabff #f) (bytes #xab #xff))
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;
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; describe 'uint16le', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-equal? (decode uint16le (open-input-bytes (bytes #xff #xab))) #xabff)
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(check-equal? (size uint16le) 2)
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(check-equal? (encode uint16le #xabff #f) (bytes #xff #xab))
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;
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; describe 'uint24', ->
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; it 'is an alias for uint24be', ->
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;; modified test: `uint24` is the same endianness as the platform
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(check-equal? (decode uint24 (bytes 0 1 2)) (send (if (system-big-endian?)
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uint24be
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uint24le) decode (bytes 0 1 2)))
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;
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; describe 'uint24be', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-equal? (decode uint24be (open-input-bytes (bytes #xff #xab #x24))) #xffab24)
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(check-equal? (size uint24be) 3)
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(check-equal? (encode uint24be #xffab24 #f) (bytes #xff #xab #x24))
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;
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; describe 'uint24le', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-equal? (decode uint24le (open-input-bytes (bytes #x24 #xab #xff))) #xffab24)
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(check-equal? (size uint24le) 3)
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(check-equal? (encode uint24le #xffab24 #f) (bytes #x24 #xab #xff))
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;
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; describe 'uint32', ->
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; it 'is an alias for uint32be', ->
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;; modified test: `uint32` is the same endianness as the platform
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(check-equal? (decode uint32 (bytes 0 1 2 3)) (send (if (system-big-endian?)
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uint32be
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uint32le) decode (bytes 0 1 2 3)))
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;
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; describe 'uint32be', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-equal? (decode uint32be (open-input-bytes (bytes #xff #xab #x24 #xbf))) #xffab24bf)
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(check-equal? (size uint32be) 4)
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(check-equal? (encode uint32be #xffab24bf #f) (bytes #xff #xab #x24 #xbf))
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;
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; describe 'uint32le', ->
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; it 'should decode', ->
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; it 'should encode', (done) ->
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(check-equal? (decode uint32le (open-input-bytes (bytes #xbf #x24 #xab #xff))) #xffab24bf)
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(check-equal? (size uint32le) 4)
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(check-equal? (encode uint32le #xffab24bf #f) (bytes #xbf #x24 #xab #xff))
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;
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; describe 'int8', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(let ([port (open-input-bytes (bytes #x7f #xff))])
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(check-equal? (decode int8 port) 127)
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(check-equal? (decode int8 port) -1))
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(check-equal? (size int8) 1)
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(let ([port (open-output-bytes)])
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(encode int8 127 port)
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(encode int8 -1 port)
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(check-equal? (dump port) (bytes #x7f #xff)))
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;
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; describe 'int16', ->
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; it 'is an alias for int16be', ->
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; int16.should.equal int16be
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;; modified test: `int16` is the same endianness as the platform
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(check-equal? (decode int16 (bytes 0 1)) (send (if (system-big-endian?)
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int16be
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int16le) decode (bytes 0 1)))
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;
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; describe 'int16be', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(let ([port (open-input-bytes (bytes #xff #xab))])
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(check-equal? (decode int16be port) -85))
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(check-equal? (size int16be) 2)
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(let ([port (open-output-bytes)])
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(encode int16be -85 port)
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(check-equal? (dump port) (bytes #xff #xab)))
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; describe 'int16le', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-equal? (decode int16le (open-input-bytes (bytes #xab #xff))) -85)
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(check-equal? (size int16le) 2)
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(check-equal? (encode int16le -85 #f) (bytes #xab #xff))
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;
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; describe 'int24', ->
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; it 'is an alias for int24be', ->
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; int24.should.equal int24be
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;; modified test: `int24` is the same endianness as the platform
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(check-equal? (decode int24 (bytes 0 1 2)) (send (if (system-big-endian?)
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int24be
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int24le) decode (bytes 0 1 2)))
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;
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; describe 'int24be', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-equal? (decode int24be (open-input-bytes (bytes #xff #xab #x24))) -21724)
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(check-equal? (size int24be) 3)
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(check-equal? (encode int24be -21724 #f) (bytes #xff #xab #x24))
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;
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; describe 'int24le', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-equal? (decode int24le (open-input-bytes (bytes #x24 #xab #xff))) -21724)
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(check-equal? (size int24le) 3)
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(check-equal? (encode int24le -21724 #f) (bytes #x24 #xab #xff))
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; describe 'int32', ->
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; it 'is an alias for int32be', ->
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; modified test: `int32` is the same endianness as the platform
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(check-equal? (decode int32 (bytes 0 1 2 3)) (send (if (system-big-endian?)
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int32be
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int32le) decode (bytes 0 1 2 3)))
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;
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; describe 'int32be', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-equal? (decode int32be (open-input-bytes (bytes #xff #xab #x24 #xbf))) -5561153)
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(check-equal? (size int32be) 4)
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(check-equal? (encode int32be -5561153 #f) (bytes #xff #xab #x24 #xbf))
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;
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; describe 'int32le', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-equal? (decode int32le (open-input-bytes (bytes #xbf #x24 #xab #xff))) -5561153)
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(check-equal? (size int32le) 4)
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(check-equal? (encode int32le -5561153 #f) (bytes #xbf #x24 #xab #xff))
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;
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; describe 'float', ->
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; it 'is an alias for floatbe', ->
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; modified test: `float` is the same endianness as the platform
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(check-equal? (decode float (bytes 0 1 2 3)) (send (if (system-big-endian?)
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floatbe
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floatle) decode (bytes 0 1 2 3)))
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;
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; describe 'floatbe', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-= (decode floatbe (open-input-bytes (bytes #x43 #x7a #x8c #xcd))) 250.55 0.01)
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(check-equal? (size floatbe) 4)
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(check-equal? (encode floatbe 250.55 #f) (bytes #x43 #x7a #x8c #xcd))
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;
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; describe 'floatle', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-= (decode floatle (open-input-bytes (bytes #xcd #x8c #x7a #x43))) 250.55 0.01)
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(check-equal? (size floatle) 4)
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(check-equal? (encode floatle 250.55 #f) (bytes #xcd #x8c #x7a #x43))
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;
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; describe 'double', ->
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; it 'is an alias for doublebe', ->
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; modified test: `double` is the same endianness as the platform
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(check-equal? (decode double (bytes 0 1 2 3 4 5 6 7)) (send (if (system-big-endian?)
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doublebe
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doublele) decode (bytes 0 1 2 3 4 5 6 7)))
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;
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; describe 'doublebe', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-equal? (decode doublebe (open-input-bytes (bytes #x40 #x93 #x4a #x3d #x70 #xa3 #xd7 #x0a))) 1234.56)
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(check-equal? (size doublebe) 8)
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(check-equal? (encode doublebe 1234.56 #f) (bytes #x40 #x93 #x4a #x3d #x70 #xa3 #xd7 #x0a))
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;
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; describe 'doublele', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-equal? (decode doublele (open-input-bytes (bytes #x0a #xd7 #xa3 #x70 #x3d #x4a #x93 #x40))) 1234.56)
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(check-equal? (size doublele) 8)
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(check-equal? (encode doublele 1234.56 #f) (bytes #x0a #xd7 #xa3 #x70 #x3d #x4a #x93 #x40))
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;
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; describe 'fixed16', ->
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; it 'is an alias for fixed16be', ->
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; modified test: `fixed16` is the same endianness as the platform
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(check-equal? (decode fixed16 (bytes 0 1)) (send (if (system-big-endian?)
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fixed16be
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fixed16le) decode (bytes 0 1)))
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;
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; describe 'fixed16be', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-= (decode fixed16be (open-input-bytes (bytes #x19 #x57))) 25.34 0.01)
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(check-equal? (size fixed16be) 2)
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(check-equal? (encode fixed16be 25.34 #f) (bytes #x19 #x57))
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;
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; describe 'fixed16le', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-= (decode fixed16le (open-input-bytes (bytes #x57 #x19))) 25.34 0.01)
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(check-equal? (size fixed16le) 2)
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(check-equal? (encode fixed16le 25.34 #f) (bytes #x57 #x19))
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;
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; describe 'fixed32', ->
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; it 'is an alias for fixed32be', ->
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; modified test: `fixed32` is the same endianness as the platform
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(check-equal? (decode fixed32 (bytes 0 1 2 3)) (send (if (system-big-endian?)
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fixed32be
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fixed32le) decode (bytes 0 1 2 3)))
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;
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; describe 'fixed32be', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-= (decode fixed32be (open-input-bytes (bytes #x00 #xfa #x8c #xcc))) 250.55 0.01)
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(check-equal? (size fixed32be) 4)
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(check-equal? (encode fixed32be 250.55 #f) (bytes #x00 #xfa #x8c #xcc))
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;
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; describe 'fixed32le', ->
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; it 'should decode', ->
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; it 'should have a size', ->
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; it 'should encode', (done) ->
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(check-= (decode fixed32le (open-input-bytes (bytes #xcc #x8c #xfa #x00))) 250.55 0.01)
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(check-equal? (size fixed32le) 4)
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(check-equal? (encode fixed32le 250.55 #f) (bytes #xcc #x8c #xfa #x00)) |