syndicate-nim/tests/test_patterns.nim

59 lines
1.7 KiB
Nim

# SPDX-FileCopyrightText: ☭ Emery Hemingway
# SPDX-License-Identifier: Unlicense
import std/[tables, unittest]
import preserves, syndicate
import ./test_schema
test "patterns":
let
observerPat = ?Observe(pattern: !Foo) ?? {0: grab()}
text = """<rec Observe [<rec rec [<lit foo> <arr [<bind <_>> <_> <_>]>]> <_>]>"""
check($observerPat == text)
let
worte = @["alles", "in", "ordnung"]
observer = Observe(pattern: inject(?:Foo, { 0: ?worte })).toPreserves
have = capture(observerPat, observer).toPreserves.unpackLiterals
want = [worte.toPreserves].toPreserves
check(have == want)
type Obj {.preservesDictionary.} = object
a, b, c: int
test "dictionaries":
let pat = ?:Obj
var source = initDictionary(Cap)
source["b".toSymbol] = 2.toPreserves
source["c".toSymbol] = 3.toPreserves
source["a".toSymbol] = 1.toPreserves
let values = capture(pat, source)
check values.len == 3
check values[0] == 1.toPreserves
check values[1] == 2.toPreserves
check values[2] == 3.toPreserves
type
File {.preservesDictionary.} = object
name: string
path: string
size: BiggestInt
`type`: string
Files = Table[Symbol, File]
Fields = Table[Symbol, string]
Request {.preservesRecord: "request".} = object
seq: BiggestInt
fields: Fields
files: Files
test "literals":
const txt = """<rec request [<lit 3> <dict {artists: <lit "kyyyyym"> date: <lit "2023-10-14"> notes: <lit "Lots of stuff"> title: <lit "Domes show">}> <dict {front-cover: <dict {name: <lit "ADULT_TIME_Glielmi.jpg"> path: <lit "/tmp/652adad1b3d2b666dcc8d857.jpg"> size: <lit 255614> type: <lit "image/jpeg">}>}>]>"""
var pr = parsePreserves(txt, Cap)
var capture: Literal[Request]
check capture.fromPreserves(pr)