lix/mk/common-test.sh
John Ericson 91b6833686 Move tests to separate directories, and document
Today, with the tests inside a `tests` intermingled with the
corresponding library's source code, we have a few problems:

- We have to be careful that wildcards don't end up with tests being
  built as part of Nix proper, or test headers being installed as part
  of Nix proper.

- Tests in libraries but not executables is not right:

  - It means each executable runs the previous unit tests again, because
    it needs the libraries.

  - It doesn't work right on Windows, which doesn't want you to load a
    DLL just for the side global variable . It could be made to work
    with the dlopen equivalent, but that's gross!

This reorg solves these problems.

There is a remaining problem which is that sibbling headers (like
`hash.hh` the test header vs `hash.hh` the main `libnixutil` header) end
up shadowing each other. This PR doesn't solve that. That is left as
future work for a future PR.

Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
2023-12-01 10:48:58 -05:00

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Bash

# Remove overall test dir (at most one of the two should match) and
# remove file extension.
test_name=$(echo -n "$test" | sed \
-e "s|^tests/unit/[^/]*/data/||" \
-e "s|^tests/functional/||" \
-e "s|\.sh$||" \
)
TESTS_ENVIRONMENT=(
"TEST_NAME=$test_name"
'NIX_REMOTE='
'PS4=+(${BASH_SOURCE[0]-$0}:$LINENO) '
)
: ${BASH:=/usr/bin/env bash}
run () {
cd "$(dirname $1)" && env "${TESTS_ENVIRONMENT[@]}" $BASH -x -e -u -o pipefail $(basename $1)
}
init_test () {
run "$init" 2>/dev/null > /dev/null
}
run_test_proper () {
run "$test"
}