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tests: Test #4197 nix-build output order regression

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Robert Hensing 2020-11-13 17:49:55 +01:00
parent ac5081d280
commit d264da8d96
2 changed files with 48 additions and 0 deletions
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33
tests/nix-build-examples.nix Normal file
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@ -0,0 +1,33 @@
with import ./config.nix;
rec {
input0 = mkDerivation {
name = "dependencies-input-0";
buildCommand = "mkdir $out; echo foo > $out/bar";
};
input1 = mkDerivation {
name = "dependencies-input-1";
buildCommand = "mkdir $out; echo FOO > $out/foo";
};
input2 = mkDerivation {
name = "dependencies-input-2";
buildCommand = ''
mkdir $out
echo BAR > $out/bar
echo ${input0} > $out/input0
'';
};
body = mkDerivation {
name = "dependencies-top";
builder = ./dependencies.builder0.sh + "/FOOBAR/../.";
input1 = input1 + "/.";
input2 = "${input2}/.";
input1_drv = input1;
meta.description = "Random test package";
};
}

15
tests/nix-build.sh
View file

@ -26,3 +26,18 @@ outPath2=$(nix-build $(nix-instantiate dependencies.nix)!out --no-out-link)
outPath2=$(nix-store -r $(nix-instantiate --add-root $TEST_ROOT/indirect dependencies.nix)!out)
[[ $outPath = $outPath2 ]]
# The order of the paths on stdout must correspond to the -A options
# https://github.com/NixOS/nix/issues/4197
input0="$(nix-build nix-build-examples.nix -A input0 --no-out-link)"
input1="$(nix-build nix-build-examples.nix -A input1 --no-out-link)"
input2="$(nix-build nix-build-examples.nix -A input2 --no-out-link)"
body="$(nix-build nix-build-examples.nix -A body --no-out-link)"
outPathsA="$(echo $(nix-build nix-build-examples.nix -A input0 -A input1 -A input2 -A body --no-out-link))"
[[ "$outPathsA" = "$input0 $input1 $input2 $body" ]]
# test a different ordering to make sure it fails, not just in 23 out of 24 permutations
outPathsB="$(echo $(nix-build nix-build-examples.nix -A body -A input1 -A input2 -A input0 --no-out-link))"
[[ "$outPathsB" = "$body $input1 $input2 $input0" ]]