# SPDX-FileCopyrightText: ☭ Emery Hemingway
# SPDX-License-Identifier: Unlicense

import std/unittest

import preserves, syndicate
from syndicate/protocols/dataspace import Observe
type Observe = dataspace.Observe[Ref]

import ./test_schema


test "patterns":
  let observerPat = ?Observe(pattern: !Foo) ?? {0: grab()}
  check($observerPat == """<rec Observe [<rec rec [<lit foo> <arr [<bind <_>> <_> <_>]>]> <_>]>""")

  let
    value = @["alles", "in", "ordnung"]
    observer = toPreserve(Observe(pattern: inject(?Foo, { 0: ?value })), Ref)
    have = capture(observerPat, observer).toPreserve(Ref).unpackLiterals
    want = [value.toPreserve(Ref)].toPreserve(Ref)
  check(have ==  want)