depot/third_party/tvl/nix/emptyDerivation/tests.nix
Default email a291c8690a Project import generated by Copybara.
GitOrigin-RevId: e6e19f3d81a982a62e1bba08f0b4f7fdc21b4ea0
2022-05-19 16:39:52 +02:00

40 lines
785 B
Nix

{ emptyDerivation, getBins, pkgs, writeExecline, runTestsuite, it, assertEq }:
let
bins = getBins pkgs.s6-portable-utils [ "s6-echo" ];
empty = it "is just an empty path" [
(assertEq "path empty"
(builtins.readFile emptyDerivation)
"")
];
fooOut = emptyDerivation {
builder = writeExecline "foo-builder" { } [
"importas"
"out"
"out"
"redirfd"
"-w"
"1"
"$out"
bins.s6-echo
"-n"
"foo"
];
};
overrideBuilder = it "can override the builder" [
(assertEq "output is foo"
(builtins.readFile fooOut)
"foo")
(assertEq "can add new drv variables"
(emptyDerivation { foo = "bar"; }).foo
"bar")
];
in
runTestsuite "emptyDerivation" [
empty
overrideBuilder
]