nixite/testing/it.nix
2024-01-01 17:31:17 +00:00

45 lines
993 B
Nix

msg:
{ actual, expected ? { }, asString ? false, asJSON ? false
, removeDunders ? false, safeToPrint ? true, throws ? false }:
let
preProcess = v:
if removeDunders then
undunder v
else if asString then
toString v
else if asJSON then
builtins.toJSON v
else
v;
a = preProcess actual;
e = preProcess expected;
undunder = v:
if builtins.isAttrs v then
builtins.removeAttrs v [ "__toString" "__functor" ]
else
v;
out = (if safeToPrint then
builtins.toJSON (undunder (if throws then
(builtins.tryEval actual).value
else {
inherit actual expected;
}))
else
''{"msg": "cannot be stringified ):"}'');
success =
if throws then (builtins.tryEval actual).success == false else (a == e);
in if success then ''
echo 'it ${msg}'
'' else
builtins.trace "FAILED ${msg}" (let file = builtins.toFile "value" out;
in ''
echo FAILED ${msg}
echo '${file}'
cat '${file}' | jq '.'
'')