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265 lines
15 KiB
Racket
265 lines
15 KiB
Racket
#lang racket/base
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(require rackunit
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racket/dict
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racket/class
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sugar/unstable/dict
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"../base.rkt"
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"../number.rkt"
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"../string.rkt"
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"../pointer.rkt"
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"../dict.rkt"
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"../base.rkt"
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"../versioned-dict.rkt")
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#|
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approximates
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https://github.com/mbutterick/restructure/blob/master/test/VersionedStruct.coffee
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|#
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(test-case
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"versioned dict: decode should get version from number type"
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(let ([vstruct (x:versioned-dict uint8
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(dictify
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii)
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'age uint8)
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'age uint8
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'gender uint8)))])
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(parameterize ([current-input-port (open-input-bytes #"\x00\x05roxyb\x15")])
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(check-equal? (decode vstruct) (mhasheq 'name "roxyb" 'age 21 x:version-key 0)))
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(parameterize ([current-input-port (open-input-bytes (string->bytes/utf-8 "\x01\x0aroxyb 🤘\x15\x00"))])
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(check-equal? (decode vstruct) (mhasheq 'name "roxyb 🤘" 'age 21 x:version-key 1 'gender 0)))))
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(test-case
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"versioned dict: decode should get version from number type, nested"
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(let ([vstruct (x:versioned-dict uint8
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(dictify
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii)
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'age uint8
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'nested (x:dict 'foo uint8))
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'age uint8
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'gender uint8
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'nested (x:dict 'foo uint8))))])
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(parameterize ([current-input-port (open-input-bytes #"\x00\x05roxyb\x15\x2a")])
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(check-equal? (decode vstruct) (mhasheq 'name "roxyb" 'age 21 'nested (mhasheq 'foo 42) x:version-key 0)))
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(parameterize ([current-input-port (open-input-bytes (string->bytes/utf-8 "\x01\x0aroxyb 🤘\x15\x00\x2a"))])
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(check-equal? (decode vstruct) (mhasheq 'name "roxyb 🤘" 'age 21 x:version-key 1 'gender 0 'nested (mhasheq 'foo 42))))))
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(test-case
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"versioned dict: decode should throw for unknown version"
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(let ([vstruct (x:versioned-dict uint8
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(dictify
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii)
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'age uint8)
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'age uint8
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'gender uint8)))])
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(parameterize ([current-input-port (open-input-bytes #"\x05\x05roxyb\x15")])
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(check-exn exn:fail:contract? (λ () (decode vstruct))))))
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(test-case
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"versioned dict: decode should support common header block"
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(let ([vstruct (x:versioned-dict uint8
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(dictify
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'header (dictify 'age uint8
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'alive uint8)
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii))
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'gender uint8)))])
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(parameterize ([current-input-port (open-input-bytes #"\x00\x15\x01\x05roxyb")])
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(check-equal? (decode vstruct) (mhasheq 'name "roxyb"
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'age 21
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'alive 1
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x:version-key 0)))
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(parameterize ([current-input-port (open-input-bytes (string->bytes/utf-8 "\x01\x15\x01\x0aroxyb 🤘\x00"))])
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(check-equal? (decode vstruct) (mhasheq 'name "roxyb 🤘"
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'age 21
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x:version-key 1
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'alive 1
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'gender 0)))))
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(test-case
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"versioned dict: decode should support parent version key via procedure"
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(let ([vstruct (x:versioned-dict (λ (p) (hash-ref p x:version-key))
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(dictify
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii)
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'age uint8)
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'age uint8
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'gender uint8)))])
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(parameterize ([current-input-port (open-input-bytes #"\x05roxyb\x15")])
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(check-equal? (decode vstruct #:parent (mhash x:version-key 0))
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(mhasheq 'name "roxyb" 'age 21 x:version-key 0)))
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(parameterize ([current-input-port (open-input-bytes (string->bytes/utf-8 "\x0aroxyb 🤘\x15\x00"))])
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(check-equal? (decode vstruct #:parent (mhash x:version-key 1))
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(mhasheq 'name "roxyb 🤘" 'age 21 x:version-key 1 'gender 0)))))
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(test-case
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"versioned dict: decode should support sub versioned dicts"
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(let ([vstruct (x:versioned-dict uint8
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(dictify
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii)
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'age uint8)
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1 (x:versioned-dict uint8
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(dictify
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0 (dictify 'name (x:string uint8))
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1 (dictify 'name (x:string uint8)
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'isDessert uint8)))))])
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(parameterize ([current-input-port (open-input-bytes #"\x00\x05roxyb\x15")])
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(check-equal? (decode vstruct #:parent (mhash x:version-key 0))
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(mhasheq 'name "roxyb" 'age 21 x:version-key 0)))
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(parameterize ([current-input-port (open-input-bytes #"\x01\x00\x05pasta")])
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(check-equal? (decode vstruct #:parent (mhash x:version-key 0))
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(mhasheq 'name "pasta" x:version-key 0)))
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(parameterize ([current-input-port (open-input-bytes #"\x01\x01\x09ice cream\x01")])
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(check-equal? (decode vstruct #:parent (mhash x:version-key 0))
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(mhasheq 'name "ice cream" 'isDessert 1 x:version-key 1)))))
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(test-case
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"versioned dict: decode should support process hook"
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(let ([vstruct (x:versioned-dict #:post-decode (λ (val) (hash-set! val 'processed "true") val)
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uint8
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(dictify
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii)
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'age uint8)
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'age uint8
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'gender uint8)))])
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(parameterize ([current-input-port (open-input-bytes #"\x00\x05roxyb\x15")])
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(check-equal? (decode vstruct)
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(mhasheq 'name "roxyb" 'processed "true" 'age 21 x:version-key 0)))))
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(test-case
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"versioned dict: size should compute the correct size"
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(let ([vstruct (x:versioned-dict uint8
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(dictify
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii)
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'age uint8)
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'age uint8
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'gender uint8)))])
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(check-equal? (send vstruct x:size (mhasheq 'name "roxyb"
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'age 21
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x:version-key 0)) 8)
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(check-equal? (send vstruct x:size (mhasheq 'name "roxyb 🤘"
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'gender 0
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'age 21
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x:version-key 1)) 14)))
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(test-case
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"versioned dict: size should throw for unknown version"
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(let ([vstruct (x:versioned-dict uint8
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(dictify
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii)
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'age uint8)
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'age uint8
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'gender uint8)))])
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(check-exn exn:fail:contract? (λ () (send vstruct x:size (mhasheq 'name "roxyb" 'age 21 x:version-key 5))))))
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(test-case
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"versioned dict: size should support common header block"
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(let ([struct (x:versioned-dict uint8
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(dictify
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'header (dictify 'age uint8
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'alive uint8)
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii))
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'gender uint8)))])
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(check-equal? (send struct x:size (mhasheq 'name "roxyb" 'age 21 'alive 1 x:version-key 0)) 9)
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(check-equal? (send struct x:size (mhasheq 'name "roxyb 🤘" 'gender 0 'age 21 'alive 1 x:version-key 1)) 15)))
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(test-case
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"versioned dict: size should compute the correct size with pointers"
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(let ([vstruct (x:versioned-dict uint8
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(dictify
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii)
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'age uint8)
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'age uint8
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'ptr (x:pointer uint8 #:dest-type (x:string uint8)))))])
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(check-equal? (send vstruct x:size (mhasheq 'name "roxyb"
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'age 21
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x:version-key 1
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'ptr "hello")) 15)))
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(test-case
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"versioned dict: size should throw if no value is given"
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(let ([vstruct (x:versioned-dict uint8
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(dictify
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii)
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'age uint8)
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'age uint8
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'gender uint8)))])
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(check-exn exn:fail:contract? (λ () (send vstruct x:size)))))
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(test-case
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"versioned dict: encode should encode objects to buffers"
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(let ([vstruct (x:versioned-dict uint8
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(dictify
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii)
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'age uint8)
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'age uint8
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'gender uint8)))]
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[op (open-output-bytes)])
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(encode vstruct (mhasheq 'name "roxyb" 'age 21 x:version-key 0) op)
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(encode vstruct (mhasheq 'name "roxyb 🤘" 'age 21 'gender 0 x:version-key 1) op)
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(check-equal? (get-output-bytes op) (string->bytes/utf-8 "\x00\x05roxyb\x15\x01\x0aroxyb 🤘\x15\x00"))))
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(test-case
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"versioned dict: encode should throw for unknown version"
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(let ([vstruct (x:versioned-dict uint8
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(dictify
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii)
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'age uint8)
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'age uint8
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'gender uint8)))]
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[op (open-output-bytes)])
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(check-exn exn:fail:contract? (λ () (encode vstruct op (mhasheq 'name "roxyb" 'age 21 x:version-key 5))))))
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(test-case
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"versioned dict: encode should support common header block"
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(let ([vstruct (x:versioned-dict uint8
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(dictify
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'header (dictify 'age uint8
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'alive uint8)
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii))
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'gender uint8)))]
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[op (open-output-bytes)])
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(encode vstruct (mhasheq 'name "roxyb" 'age 21 'alive 1 x:version-key 0) op)
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(encode vstruct (mhasheq 'name "roxyb 🤘" 'gender 0 'age 21 'alive 1 x:version-key 1) op)
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(check-equal? (get-output-bytes op) (string->bytes/utf-8 "\x00\x15\x01\x05roxyb\x01\x15\x01\x0aroxyb 🤘\x00"))))
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(test-case
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"versioned dict: encode should encode pointer data after structure"
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(let ([vstruct (x:versioned-dict uint8
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(dictify
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii)
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'age uint8)
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'age uint8
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'ptr (x:pointer uint8 #:dest-type (x:string uint8)))))]
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[op (open-output-bytes)])
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(encode vstruct (mhasheq x:version-key 1 'name "roxyb" 'age 21 'ptr "hello") op)
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(check-equal? (get-output-bytes op) (string->bytes/utf-8 "\x01\x05roxyb\x15\x09\x05hello"))))
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#;(test-case
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"versioned dict: encode should support preEncode hook"
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(let ([vstruct (x:versioned-dict uint8
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(dictify
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0 (dictify 'name (x:string #:length uint8 #:encoding 'ascii)
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'age uint8)
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1 (x:dict 'name (x:string #:length uint8 #:encoding 'utf8)
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'age uint8
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'gender uint8)))]
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[op (open-output-bytes)])
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(set-pre-encode! vstruct (λ (val) (hash-set! val x:version-key (if (hash-ref val 'gender #f) 1 0)) val))
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(encode vstruct (mhasheq 'name "roxyb" 'age 21 x:version-key 0) op)
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(encode vstruct (mhasheq 'name "roxyb 🤘" 'age 21 'gender 0) op)
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(check-equal? (get-output-bytes op) (string->bytes/utf-8 "\x00\x05roxyb\x15\x01\x0aroxyb 🤘\x15\x00")))) |