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 KiB
Bash
57 lines
2 KiB
Bash
source common.sh
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echo "building test path"
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storePath="$(nix-build nar-access.nix -A a --no-out-link)"
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cd "$TEST_ROOT"
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# Dump path to nar.
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narFile="$TEST_ROOT/path.nar"
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nix-store --dump $storePath > $narFile
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# Check that find and nar ls match.
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( cd $storePath; find . | sort ) > files.find
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nix nar ls -R -d $narFile "" | sort > files.ls-nar
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diff -u files.find files.ls-nar
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# Check that file contents of data match.
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nix nar cat $narFile /foo/data > data.cat-nar
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diff -u data.cat-nar $storePath/foo/data
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# Check that file contents of baz match.
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nix nar cat $narFile /foo/baz > baz.cat-nar
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diff -u baz.cat-nar $storePath/foo/baz
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nix store cat $storePath/foo/baz > baz.cat-nar
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diff -u baz.cat-nar $storePath/foo/baz
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# Test --json.
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diff -u \
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<(nix nar ls --json $narFile / | jq -S) \
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<(echo '{"type":"directory","entries":{"foo":{},"foo-x":{},"qux":{},"zyx":{}}}' | jq -S)
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diff -u \
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<(nix nar ls --json -R $narFile /foo | jq -S) \
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<(echo '{"type":"directory","entries":{"bar":{"type":"regular","size":0,"narOffset":368},"baz":{"type":"regular","size":0,"narOffset":552},"data":{"type":"regular","size":58,"narOffset":736}}}' | jq -S)
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diff -u \
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<(nix nar ls --json -R $narFile /foo/bar | jq -S) \
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<(echo '{"type":"regular","size":0,"narOffset":368}' | jq -S)
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diff -u \
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<(nix store ls --json $storePath | jq -S) \
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<(echo '{"type":"directory","entries":{"foo":{},"foo-x":{},"qux":{},"zyx":{}}}' | jq -S)
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diff -u \
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<(nix store ls --json -R $storePath/foo | jq -S) \
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<(echo '{"type":"directory","entries":{"bar":{"type":"regular","size":0},"baz":{"type":"regular","size":0},"data":{"type":"regular","size":58}}}' | jq -S)
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diff -u \
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<(nix store ls --json -R $storePath/foo/bar| jq -S) \
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<(echo '{"type":"regular","size":0}' | jq -S)
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# Test missing files.
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expect 1 nix store ls --json -R $storePath/xyzzy 2>&1 | grep 'does not exist in NAR'
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expect 1 nix store ls $storePath/xyzzy 2>&1 | grep 'does not exist'
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# Test failure to dump.
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if nix-store --dump $storePath >/dev/full ; then
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echo "dumping to /dev/full should fail"
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exit -1
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fi
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