You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
375 lines
9.5 KiB
Racket
375 lines
9.5 KiB
Racket
#lang restructure/racket
|
|
(require "versioned-struct.rkt" "string.rkt" "number.rkt" "buffer.rkt" "stream.rkt" rackunit)
|
|
|
|
#|
|
|
approximates
|
|
https://github.com/mbutterick/restructure/blob/master/test/VersionedStruct.coffee
|
|
|#
|
|
|
|
;describe 'VersionedStruct', ->
|
|
; describe 'decode', ->
|
|
; it 'should get version from number type', ->
|
|
; struct = new VersionedStruct uint8,
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; age: uint8
|
|
; 1:
|
|
; name: new StringT uint8, 'utf8'
|
|
; age: uint8
|
|
; gender: uint8
|
|
;
|
|
; stream = new DecodeStream new Buffer '\x00\x05devon\x15'
|
|
; struct.decode(stream).should.deep.equal
|
|
; version: 0
|
|
; name: 'devon'
|
|
; age: 21
|
|
;
|
|
; stream = new DecodeStream new Buffer '\x01\x0adevon 👍\x15\x00', 'utf8'
|
|
; struct.decode(stream).should.deep.equal
|
|
; version: 1
|
|
; name: 'devon 👍'
|
|
; age: 21
|
|
; gender: 0
|
|
;
|
|
; it 'should throw for unknown version', ->
|
|
; struct = new VersionedStruct uint8,
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; age: uint8
|
|
; 1:
|
|
; name: new StringT uint8, 'utf8'
|
|
; age: uint8
|
|
; gender: uint8
|
|
;
|
|
; stream = new DecodeStream new Buffer '\x05\x05devon\x15'
|
|
; should.throw ->
|
|
; struct.decode(stream)
|
|
;
|
|
; it 'should support common header block', ->
|
|
; struct = new VersionedStruct uint8,
|
|
; header:
|
|
; age: uint8
|
|
; alive: uint8
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; 1:
|
|
; name: new StringT uint8, 'utf8'
|
|
; gender: uint8
|
|
;
|
|
; stream = new DecodeStream new Buffer '\x00\x15\x01\x05devon'
|
|
; struct.decode(stream).should.deep.equal
|
|
; version: 0
|
|
; age: 21
|
|
; alive: 1
|
|
; name: 'devon'
|
|
;
|
|
; stream = new DecodeStream new Buffer '\x01\x15\x01\x0adevon 👍\x00', 'utf8'
|
|
; struct.decode(stream).should.deep.equal
|
|
; version: 1
|
|
; age: 21
|
|
; alive: 1
|
|
; name: 'devon 👍'
|
|
; gender: 0
|
|
;
|
|
; it 'should support parent version key', ->
|
|
; struct = new VersionedStruct 'version',
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; age: uint8
|
|
; 1:
|
|
; name: new StringT uint8, 'utf8'
|
|
; age: uint8
|
|
; gender: uint8
|
|
;
|
|
; stream = new DecodeStream new Buffer '\x05devon\x15'
|
|
; struct.decode(stream, version: 0).should.deep.equal
|
|
; version: 0
|
|
; name: 'devon'
|
|
; age: 21
|
|
;
|
|
; stream = new DecodeStream new Buffer '\x0adevon 👍\x15\x00', 'utf8'
|
|
; struct.decode(stream, version: 1).should.deep.equal
|
|
; version: 1
|
|
; name: 'devon 👍'
|
|
; age: 21
|
|
; gender: 0
|
|
;
|
|
; it 'should support sub versioned structs', ->
|
|
; struct = new VersionedStruct uint8,
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; age: uint8
|
|
; 1: new VersionedStruct uint8,
|
|
; 0:
|
|
; name: new StringT uint8
|
|
; 1:
|
|
; name: new StringT uint8
|
|
; isDesert: uint8
|
|
;
|
|
; stream = new DecodeStream new Buffer '\x00\x05devon\x15'
|
|
; struct.decode(stream, version: 0).should.deep.equal
|
|
; version: 0
|
|
; name: 'devon'
|
|
; age: 21
|
|
;
|
|
; stream = new DecodeStream new Buffer '\x01\x00\x05pasta'
|
|
; struct.decode(stream, version: 0).should.deep.equal
|
|
; version: 0
|
|
; name: 'pasta'
|
|
;
|
|
; stream = new DecodeStream new Buffer '\x01\x01\x09ice cream\x01'
|
|
; struct.decode(stream, version: 0).should.deep.equal
|
|
; version: 1
|
|
; name: 'ice cream'
|
|
; isDesert: 1
|
|
;
|
|
; it 'should support process hook', ->
|
|
; struct = new VersionedStruct uint8,
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; age: uint8
|
|
; 1:
|
|
; name: new StringT uint8, 'utf8'
|
|
; age: uint8
|
|
; gender: uint8
|
|
;
|
|
; struct.process = ->
|
|
; @processed = true
|
|
;
|
|
; stream = new DecodeStream new Buffer '\x00\x05devon\x15'
|
|
; struct.decode(stream).should.deep.equal
|
|
; version: 0
|
|
; name: 'devon'
|
|
; age: 21
|
|
; processed: true
|
|
;
|
|
; describe 'size', ->
|
|
; it 'should compute the correct size', ->
|
|
; struct = new VersionedStruct uint8,
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; age: uint8
|
|
; 1:
|
|
; name: new StringT uint8, 'utf8'
|
|
; age: uint8
|
|
; gender: uint8
|
|
;
|
|
; size = struct.size
|
|
; version: 0
|
|
; name: 'devon'
|
|
; age: 21
|
|
;
|
|
; size.should.equal 8
|
|
;
|
|
; size = struct.size
|
|
; version: 1
|
|
; name: 'devon 👍'
|
|
; age: 21
|
|
; gender: 0
|
|
;
|
|
; size.should.equal 14
|
|
;
|
|
; it 'should throw for unknown version', ->
|
|
; struct = new VersionedStruct uint8,
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; age: uint8
|
|
; 1:
|
|
; name: new StringT uint8, 'utf8'
|
|
; age: uint8
|
|
; gender: uint8
|
|
;
|
|
; should.throw ->
|
|
; struct.size
|
|
; version: 5
|
|
; name: 'devon'
|
|
; age: 21
|
|
;
|
|
; it 'should support common header block', ->
|
|
; struct = new VersionedStruct uint8,
|
|
; header:
|
|
; age: uint8
|
|
; alive: uint8
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; 1:
|
|
; name: new StringT uint8, 'utf8'
|
|
; gender: uint8
|
|
;
|
|
; size = struct.size
|
|
; version: 0
|
|
; age: 21
|
|
; alive: 1
|
|
; name: 'devon'
|
|
;
|
|
; size.should.equal 9
|
|
;
|
|
; size = struct.size
|
|
; version: 1
|
|
; age: 21
|
|
; alive: 1
|
|
; name: 'devon 👍'
|
|
; gender: 0
|
|
;
|
|
; size.should.equal 15
|
|
;
|
|
; it 'should compute the correct size with pointers', ->
|
|
; struct = new VersionedStruct uint8,
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; age: uint8
|
|
; 1:
|
|
; name: new StringT uint8, 'utf8'
|
|
; age: uint8
|
|
; ptr: new Pointer uint8, new StringT uint8
|
|
;
|
|
; size = struct.size
|
|
; version: 1
|
|
; name: 'devon'
|
|
; age: 21
|
|
; ptr: 'hello'
|
|
;
|
|
; size.should.equal 15
|
|
;
|
|
; it 'should throw if no value is given', ->
|
|
; struct = new VersionedStruct uint8,
|
|
; 0:
|
|
; name: new StringT 4, 'ascii'
|
|
; age: uint8
|
|
; 1:
|
|
; name: new StringT 4, 'utf8'
|
|
; age: uint8
|
|
; gender: uint8
|
|
;
|
|
; should.throw ->
|
|
; struct.size()
|
|
; , /not a fixed size/i
|
|
;
|
|
; describe 'encode', ->
|
|
; it 'should encode objects to buffers', (done) ->
|
|
; struct = new VersionedStruct uint8,
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; age: uint8
|
|
; 1:
|
|
; name: new StringT uint8, 'utf8'
|
|
; age: uint8
|
|
; gender: uint8
|
|
;
|
|
; stream = new EncodeStream
|
|
; stream.pipe concat (buf) ->
|
|
; buf.should.deep.equal new Buffer '\x00\x05devon\x15\x01\x0adevon 👍\x15\x00', 'utf8'
|
|
; done()
|
|
;
|
|
; struct.encode stream,
|
|
; version: 0
|
|
; name: 'devon'
|
|
; age: 21
|
|
;
|
|
; struct.encode stream,
|
|
; version: 1
|
|
; name: 'devon 👍'
|
|
; age: 21
|
|
; gender: 0
|
|
;
|
|
; stream.end()
|
|
;
|
|
; it 'should throw for unknown version', ->
|
|
; struct = new VersionedStruct uint8,
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; age: uint8
|
|
; 1:
|
|
; name: new StringT uint8, 'utf8'
|
|
; age: uint8
|
|
; gender: uint8
|
|
;
|
|
; stream = new EncodeStream
|
|
; should.throw ->
|
|
; struct.encode stream,
|
|
; version: 5
|
|
; name: 'devon'
|
|
; age: 21
|
|
;
|
|
; it 'should support common header block', (done) ->
|
|
; struct = new VersionedStruct uint8,
|
|
; header:
|
|
; age: uint8
|
|
; alive: uint8
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; 1:
|
|
; name: new StringT uint8, 'utf8'
|
|
; gender: uint8
|
|
;
|
|
; stream = new EncodeStream
|
|
; stream.pipe concat (buf) ->
|
|
; buf.should.deep.equal new Buffer '\x00\x15\x01\x05devon\x01\x15\x01\x0adevon 👍\x00', 'utf8'
|
|
; done()
|
|
;
|
|
; struct.encode stream,
|
|
; version: 0
|
|
; age: 21
|
|
; alive: 1
|
|
; name: 'devon'
|
|
;
|
|
; struct.encode stream,
|
|
; version: 1
|
|
; age: 21
|
|
; alive: 1
|
|
; name: 'devon 👍'
|
|
; gender: 0
|
|
;
|
|
; stream.end()
|
|
;
|
|
; it 'should encode pointer data after structure', (done) ->
|
|
; struct = new VersionedStruct uint8,
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; age: uint8
|
|
; 1:
|
|
; name: new StringT uint8, 'utf8'
|
|
; age: uint8
|
|
; ptr: new Pointer uint8, new StringT uint8
|
|
;
|
|
; stream = new EncodeStream
|
|
; stream.pipe concat (buf) ->
|
|
; buf.should.deep.equal new Buffer '\x01\x05devon\x15\x09\x05hello', 'utf8'
|
|
; done()
|
|
;
|
|
; struct.encode stream,
|
|
; version: 1
|
|
; name: 'devon'
|
|
; age: 21
|
|
; ptr: 'hello'
|
|
;
|
|
; stream.end()
|
|
;
|
|
; it 'should support preEncode hook', (done) ->
|
|
; struct = new VersionedStruct uint8,
|
|
; 0:
|
|
; name: new StringT uint8, 'ascii'
|
|
; age: uint8
|
|
; 1:
|
|
; name: new StringT uint8, 'utf8'
|
|
; age: uint8
|
|
; gender: uint8
|
|
;
|
|
; struct.preEncode = ->
|
|
; @version = if @gender? then 1 else 0
|
|
;
|
|
; stream = new EncodeStream
|
|
; stream.pipe concat (buf) ->
|
|
; buf.should.deep.equal new Buffer '\x00\x05devon\x15\x01\x0adevon 👍\x15\x00', 'utf8'
|
|
; done()
|
|
;
|
|
; struct.encode stream,
|
|
; name: 'devon'
|
|
; age: 21
|
|
;
|
|
; struct.encode stream,
|
|
; name: 'devon 👍'
|
|
; age: 21
|
|
; gender: 0
|
|
;
|
|
; stream.end() |