forked from lix-project/lix
c11836126b
Use `set -u` and `set -o pipefail` to catch accidental mistakes and failures more strongly. - `set -u` catches the use of undefined variables - `set -o pipefail` catches failures (like `set -e`) earlier in the pipeline. This makes the tests a bit more robust. It is nice to read code not worrying about these spurious success paths (via uncaught) errors undermining the tests. Indeed, I caught some bugs doing this. There are a few tests where we run a command that should fail, and then search its output to make sure the failure message is one that we expect. Before, since the `grep` was the last command in the pipeline the exit code of those failing programs was silently ignored. Now with `set -o pipefail` it won't be, and we have to do something so the expected failure doesn't accidentally fail the test. To do that we use `expect` and a new `expectStderr` to check for the exact failing exit code. See the comments on each for why. `grep -q` is replaced with `grepQuiet`, see the comments on that function for why. `grep -v` when we just want the exit code is replaced with `grepInverse, see the comments on that function for why. `grep -q -v` together is, surprise surprise, replaced with `grepQuietInverse`, which is both combined. Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
57 lines
2.3 KiB
Bash
57 lines
2.3 KiB
Bash
source common.sh
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requireDaemonNewerThan "2.8pre20220311"
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enableFeatures "ca-derivations impure-derivations"
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restartDaemon
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clearStore
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# Basic test of impure derivations: building one a second time should not use the previous result.
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printf 0 > $TEST_ROOT/counter
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nix build --dry-run --json --file ./impure-derivations.nix impure.all
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json=$(nix build -L --no-link --json --file ./impure-derivations.nix impure.all)
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path1=$(echo $json | jq -r .[].outputs.out)
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path1_stuff=$(echo $json | jq -r .[].outputs.stuff)
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[[ $(< $path1/n) = 0 ]]
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[[ $(< $path1_stuff/bla) = 0 ]]
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[[ $(nix path-info --json $path1 | jq .[].ca) =~ fixed:r:sha256: ]]
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path2=$(nix build -L --no-link --json --file ./impure-derivations.nix impure | jq -r .[].outputs.out)
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[[ $(< $path2/n) = 1 ]]
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# Test impure derivations that depend on impure derivations.
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path3=$(nix build -L --no-link --json --file ./impure-derivations.nix impureOnImpure | jq -r .[].outputs.out)
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[[ $(< $path3/n) = X2 ]]
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path4=$(nix build -L --no-link --json --file ./impure-derivations.nix impureOnImpure | jq -r .[].outputs.out)
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[[ $(< $path4/n) = X3 ]]
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# Test that (self-)references work.
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[[ $(< $path4/symlink/bla) = 3 ]]
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[[ $(< $path4/self/n) = X3 ]]
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# Input-addressed derivations cannot depend on impure derivations directly.
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(! nix build -L --no-link --json --file ./impure-derivations.nix inputAddressed 2>&1) | grep 'depends on impure derivation'
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drvPath=$(nix eval --json --file ./impure-derivations.nix impure.drvPath | jq -r .)
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[[ $(nix show-derivation $drvPath | jq ".[\"$drvPath\"].outputs.out.impure") = true ]]
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[[ $(nix show-derivation $drvPath | jq ".[\"$drvPath\"].outputs.stuff.impure") = true ]]
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# Fixed-output derivations *can* depend on impure derivations.
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path5=$(nix build -L --no-link --json --file ./impure-derivations.nix contentAddressed | jq -r .[].outputs.out)
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[[ $(< $path5) = X ]]
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[[ $(< $TEST_ROOT/counter) = 5 ]]
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# And they should not be rebuilt.
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path5=$(nix build -L --no-link --json --file ./impure-derivations.nix contentAddressed | jq -r .[].outputs.out)
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[[ $(< $path5) = X ]]
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[[ $(< $TEST_ROOT/counter) = 5 ]]
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# Input-addressed derivations can depend on fixed-output derivations that depend on impure derivations.
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path6=$(nix build -L --no-link --json --file ./impure-derivations.nix inputAddressedAfterCA | jq -r .[].outputs.out)
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[[ $(< $path6) = X ]]
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[[ $(< $TEST_ROOT/counter) = 5 ]]
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