lix/tests/lang.sh
2022-04-29 11:14:08 +02:00

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source common.sh
export TEST_VAR=foo # for eval-okay-getenv.nix
export NIX_REMOTE=dummy://
nix-instantiate --eval -E 'builtins.trace "Hello" 123' 2>&1 | grep -q Hello
(! nix-instantiate --show-trace --eval -E 'builtins.addErrorContext "Hello" 123' 2>&1 | grep -q Hello)
nix-instantiate --show-trace --eval -E 'builtins.addErrorContext "Hello" (throw "Foo")' 2>&1 | grep -q Hello
set +x
fail=0
just_failed=0
safe_expect () {
expected=$1 name=$2 msg=$3 cmd=$4
just_failed=0
res=0
eval "$cmd" || res=$?
if [ $res -ge 2 ]; then
[ $res -le 128 ] || { echo "FAIL: $name returned unexpected code '$res' (should be 0 or 1)"; just_failed=1; }
[ $res -gt 128 ] || { echo "FAIL: $name crashed with $res ($(kill -l $(($res - 128))))"; just_failed=1; }
elif [ $expected = "fail" ]; then
[ $res -ne 0 ] || { echo "FAIL: $name $msg"; just_failed=1; }
elif [ $expected = "pass" ]; then
[ $res -eq 0 ] || { echo "FAIL: $name $msg"; just_failed=1; }
else
echo "usage: safe_expect [pass|fail] name msg command"
exit 1
fi
[ $just_failed -eq 0 ] || fail=1
}
for i in lang/parse-fail-*.nix; do
echo "parsing $i (should fail)";
i=$(basename $i .nix)
safe_expect fail "$i" "shouldn't parse" \
"nix-instantiate --parse - < lang/$i.nix"
done
for i in lang/parse-okay-*.nix; do
echo "parsing $i (should succeed)";
i=$(basename $i .nix)
safe_expect pass "$i" "should parse" \
"nix-instantiate --parse - < lang/$i.nix > lang/$i.out"
done
for i in lang/eval-fail-*.nix; do
echo "evaluating $i (should fail)";
i=$(basename $i .nix)
safe_expect fail "$i" "shouldn't evaluate" \
"nix-instantiate --eval lang/$i.nix"
done
for i in lang/eval-okay-*.nix; do
echo "evaluating $i (should succeed)";
i=$(basename $i .nix)
if test -e lang/$i.exp; then
flags=
if test -e lang/$i.flags; then
flags='$'"(cat lang/$i.flags)" # because vi does not highlight "\$(...)" properly ;-).
fi
safe_expect pass "$i" "should evaluate" \
"NIX_PATH=lang/dir3:lang/dir4 nix-instantiate $flags --eval --strict lang/$i.nix > lang/$i.out"
if [ $just_failed -eq 0 ] && ! diff lang/$i.out lang/$i.exp; then
echo "FAIL: evaluation result of $i not as expected"
fail=1
fi
fi
if test -e lang/$i.exp.xml; then
safe_expect pass "$i" "should evaluate" \
"nix-instantiate --eval --xml --no-location --strict lang/$i.nix > lang/$i.out.xml"
if [ $just_failed -eq 0 ] && ! cmp -s lang/$i.out.xml lang/$i.exp.xml; then
echo "FAIL: XML evaluation result of $i not as expected"
fail=1
fi
fi
done
exit $fail