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67ab776e15
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.
(cherry picked from commit c11836126b)
42 lines
1.3 KiB
Bash
42 lines
1.3 KiB
Bash
source common.sh
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clearStore
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RESULT=$TEST_ROOT/result
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dep=$(nix-build -o $RESULT check-refs.nix -A dep)
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# test1 references dep, not itself.
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test1=$(nix-build -o $RESULT check-refs.nix -A test1)
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nix-store -q --references $test1 | grepQuietInverse $test1
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nix-store -q --references $test1 | grepQuiet $dep
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# test2 references src, not itself nor dep.
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test2=$(nix-build -o $RESULT check-refs.nix -A test2)
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nix-store -q --references $test2 | grepQuietInverse $test2
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nix-store -q --references $test2 | grepQuietInverse $dep
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nix-store -q --references $test2 | grepQuiet aux-ref
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# test3 should fail (unallowed ref).
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(! nix-build -o $RESULT check-refs.nix -A test3)
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# test4 should succeed.
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nix-build -o $RESULT check-refs.nix -A test4
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# test5 should succeed.
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nix-build -o $RESULT check-refs.nix -A test5
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# test6 should fail (unallowed self-ref).
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(! nix-build -o $RESULT check-refs.nix -A test6)
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# test7 should succeed (allowed self-ref).
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nix-build -o $RESULT check-refs.nix -A test7
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# test8 should fail (toFile depending on derivation output).
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(! nix-build -o $RESULT check-refs.nix -A test8)
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# test9 should fail (disallowed reference).
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(! nix-build -o $RESULT check-refs.nix -A test9)
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# test10 should succeed (no disallowed references).
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nix-build -o $RESULT check-refs.nix -A test10
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