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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)
76 lines
2.7 KiB
Bash
76 lines
2.7 KiB
Bash
source common.sh
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clearStore
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rm -f $TEST_ROOT/result*
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# Test whether read-only evaluation works when referring to the
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# ‘drvPath’ attribute.
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echo "evaluating c..."
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#drvPath=$(nix-instantiate multiple-outputs.nix -A c --readonly-mode)
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# And check whether the resulting derivation explicitly depends on all
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# outputs.
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drvPath=$(nix-instantiate multiple-outputs.nix -A c)
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#[ "$drvPath" = "$drvPath2" ]
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grepQuiet 'multiple-outputs-a.drv",\["first","second"\]' $drvPath
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grepQuiet 'multiple-outputs-b.drv",\["out"\]' $drvPath
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# While we're at it, test the ‘unsafeDiscardOutputDependency’ primop.
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outPath=$(nix-build multiple-outputs.nix -A d --no-out-link)
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drvPath=$(cat $outPath/drv)
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outPath=$(nix-store -q $drvPath)
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(! [ -e "$outPath" ])
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# Do a build of something that depends on a derivation with multiple
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# outputs.
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echo "building b..."
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outPath=$(nix-build multiple-outputs.nix -A b --no-out-link)
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echo "output path is $outPath"
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[ "$(cat "$outPath"/file)" = "success" ]
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# Test nix-build on a derivation with multiple outputs.
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outPath1=$(nix-build multiple-outputs.nix -A a -o $TEST_ROOT/result)
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[ -e $TEST_ROOT/result-first ]
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(! [ -e $TEST_ROOT/result-second ])
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nix-build multiple-outputs.nix -A a.all -o $TEST_ROOT/result
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[ "$(cat $TEST_ROOT/result-first/file)" = "first" ]
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[ "$(cat $TEST_ROOT/result-second/file)" = "second" ]
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[ "$(cat $TEST_ROOT/result-second/link/file)" = "first" ]
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hash1=$(nix-store -q --hash $TEST_ROOT/result-second)
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outPath2=$(nix-build $(nix-instantiate multiple-outputs.nix -A a) --no-out-link)
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[[ $outPath1 = $outPath2 ]]
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outPath2=$(nix-build $(nix-instantiate multiple-outputs.nix -A a.first) --no-out-link)
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[[ $outPath1 = $outPath2 ]]
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outPath2=$(nix-build $(nix-instantiate multiple-outputs.nix -A a.second) --no-out-link)
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[[ $(cat $outPath2/file) = second ]]
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[[ $(nix-build $(nix-instantiate multiple-outputs.nix -A a.all) --no-out-link | wc -l) -eq 2 ]]
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# Delete one of the outputs and rebuild it. This will cause a hash
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# rewrite.
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env -u NIX_REMOTE nix-store --delete $TEST_ROOT/result-second --ignore-liveness
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nix-build multiple-outputs.nix -A a.all -o $TEST_ROOT/result
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[ "$(cat $TEST_ROOT/result-second/file)" = "second" ]
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[ "$(cat $TEST_ROOT/result-second/link/file)" = "first" ]
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hash2=$(nix-store -q --hash $TEST_ROOT/result-second)
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[ "$hash1" = "$hash2" ]
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# Make sure that nix-build works on derivations with multiple outputs.
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echo "building a.first..."
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nix-build multiple-outputs.nix -A a.first --no-out-link
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# Cyclic outputs should be rejected.
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echo "building cyclic..."
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if nix-build multiple-outputs.nix -A cyclic --no-out-link; then
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echo "Cyclic outputs incorrectly accepted!"
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exit 1
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fi
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echo "collecting garbage..."
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rm $TEST_ROOT/result*
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nix-store --gc --keep-derivations --keep-outputs
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nix-store --gc --print-roots
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