tvl-depot/users/sterni/nix/fun/tests/default.nix

{ depot, ... }:

let
  inherit (depot.nix.runTestsuite)
    runTestsuite
    it
    assertEq
    ;

  inherit (depot.users.sterni.nix)
    fun
    ;

  hasEllipsisTests = it "checks fun.hasEllipsis" [
    (assertEq "Malicious string" false
      (fun.hasEllipsis (builtins.toXML ({ foo, ... }: 12))))
    (assertEq "No function" false
      (fun.hasEllipsis 23))
    (assertEq "No attribute set pattern" false
      (fun.hasEllipsis (a: a + 2)))
    (assertEq "No ellipsis" false
      (fun.hasEllipsis ({ foo, bar }: foo + bar)))
    (assertEq "Ellipsis" true
      (fun.hasEllipsis ({ depot, pkgs, ... }: 42)))
  ];
in
runTestsuite "nix.fun" [
  hasEllipsisTests
]
feat(sterni/nix/fun): add hasEllipsis As a complementation to builtins.functionArgs this function checks if the function has a set pattern that contains an ellipsis (i. e. `{ [arg, [ arg1, [ … ]]] ... }:`). The implementation of this is pretty cursed however since there is no clean way to do this in vanilla nix: We need to match on the output of builtins.toXML which does try to serialize functions by outputting their argument and information about it (whether it is a normal argument or a attribute set pattern, in the latter case it also serialize every component of the pattern). Change-Id: I0f33721811a3180cec205a0c98e6d92e10e92075 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2950 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org> 2021-04-12 19:30:41 +02:00			`{ depot, ... }:`

			`let`
			`inherit (depot.nix.runTestsuite)`
			`runTestsuite`
			`it`
			`assertEq`
			`;`

			`inherit (depot.users.sterni.nix)`
			`fun`
			`;`

			`hasEllipsisTests = it "checks fun.hasEllipsis" [`
			`(assertEq "Malicious string" false`
			`(fun.hasEllipsis (builtins.toXML ({ foo, ... }: 12))))`
			`(assertEq "No function" false`
			`(fun.hasEllipsis 23))`
			`(assertEq "No attribute set pattern" false`
			`(fun.hasEllipsis (a: a + 2)))`
			`(assertEq "No ellipsis" false`
			`(fun.hasEllipsis ({ foo, bar }: foo + bar)))`
			`(assertEq "Ellipsis" true`
			`(fun.hasEllipsis ({ depot, pkgs, ... }: 42)))`
			`];`
			`in`
style: format entire depot with nixpkgs-fmt This CL can be used to compare the style of nixpkgs-fmt against other formatters (nixpkgs, alejandra). Change-Id: I87c6abff6bcb546b02ead15ad0405f81e01b6d9e Reviewed-on: https://cl.tvl.fyi/c/depot/+/4397 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org> Reviewed-by: lukegb <lukegb@tvl.fyi> Reviewed-by: wpcarro <wpcarro@gmail.com> Reviewed-by: Profpatsch <mail@profpatsch.de> Reviewed-by: kanepyork <rikingcoding@gmail.com> Reviewed-by: tazjin <tazjin@tvl.su> Reviewed-by: cynthia <cynthia@tvl.fyi> Reviewed-by: edef <edef@edef.eu> Reviewed-by: eta <tvl@eta.st> Reviewed-by: grfn <grfn@gws.fyi> 2022-01-30 17:06:58 +01:00			`runTestsuite "nix.fun" [`
			`hasEllipsisTests`
			`]`