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#!/usr/bin/env bash
source common.sh
set -o pipefail
source lang/framework.sh
# specialize function a bit
function diffAndAccept() {
local -r testName="$1"
local -r got="lang/$testName.$2"
local -r expected="lang/$testName.$3"
diffAndAcceptInner "$testName" "$got" "$expected"
}
export TEST_VAR=foo # for eval-okay-getenv.nix
export NIX_REMOTE=dummy://
export NIX_STORE_DIR=/nix/store
nix-instantiate --eval -E 'builtins.trace "Hello" 123' 2>&1 | grepQuiet Hello
nix-instantiate --eval -E 'builtins.trace "Hello" 123' 2>/dev/null | grepQuiet 123
nix-instantiate --eval -E 'builtins.addErrorContext "Hello" 123' 2>&1
nix-instantiate --trace-verbose --eval -E 'builtins.traceVerbose "Hello" 123' 2>&1 | grepQuiet Hello
nix-instantiate --eval -E 'builtins.traceVerbose "Hello" 123' 2>&1 | grepQuietInverse Hello
nix-instantiate --show-trace --eval -E 'builtins.addErrorContext "Hello" 123' 2>&1 | grepQuietInverse Hello
expectStderr 1 nix-instantiate --show-trace --eval -E 'builtins.addErrorContext "Hello" (throw "Foo")' | grepQuiet Hello
expectStderr 1 nix-instantiate --show-trace --eval -E 'builtins.addErrorContext "Hello %" (throw "Foo")' | grepQuiet 'Hello %'
nix-instantiate --eval -E 'let x = builtins.trace { x = x; } true; in x' \
2>&1 | grepQuiet -E 'trace: { x = «potential infinite recursion»; }'
nix-instantiate --eval -E 'let x = { repeating = x; tracing = builtins.trace x true; }; in x.tracing'\
2>&1 | grepQuiet -F 'trace: { repeating = «repeated»; tracing = «potential infinite recursion»; }'
set +x
badDiff=0
badExitCode=0
for i in lang/parse-fail-*.nix; do
echo "parsing $i (should fail)";
i=$(basename "$i" .nix)
declare -a flags=()
if test -e "lang/$i.flags"; then
read -r -a flags < "lang/$i.flags"
fi
if expectStderr 1 nix-instantiate --parse "${flags[@]}" - < "lang/$i.nix" > "lang/$i.err"
then
diffAndAccept "$i" err err.exp
else
echo "FAIL: $i shouldn't parse"
badExitCode=1
fi
done
for i in lang/parse-okay-*.nix; do
echo "parsing $i (should succeed)";
i=$(basename "$i" .nix)
declare -a flags=()
if test -e "lang/$i.flags"; then
read -r -a flags < "lang/$i.flags"
fi
if
expect 0 nix-instantiate --parse "${flags[@]}" - < "lang/$i.nix" \
1> "lang/$i.out" \
2> "lang/$i.err"
then
sed "s!$(pwd)!/pwd!g" "lang/$i.out" "lang/$i.err"
diffAndAccept "$i" out exp
diffAndAccept "$i" err err.exp
else
echo "FAIL: $i should parse"
badExitCode=1
fi
done
for i in lang/eval-fail-*.nix; do
echo "evaluating $i (should fail)";
i=$(basename "$i" .nix)
declare -a flags=()
if test -e "lang/$i.flags"; then
read -r -a flags < "lang/$i.flags"
fi
if
expectStderr 1 nix-instantiate --eval --strict --show-trace "${flags[@]}" "lang/$i.nix" \
| sed "s!$(pwd)!/pwd!g" > "lang/$i.err"
then
diffAndAccept "$i" err err.exp
else
echo "FAIL: $i shouldn't evaluate"
badExitCode=1
fi
done
for i in lang/eval-okay-*.nix; do
echo "evaluating $i (should succeed)";
i=$(basename "$i" .nix)
declare -a flags=()
if test -e "lang/$i.flags"; then
read -r -a flags < "lang/$i.flags"
fi
if test -e "lang/$i.exp.xml"; then
if expect 0 nix-instantiate --eval --xml --no-location --strict "${flags[@]}" \
"lang/$i.nix" > "lang/$i.out.xml"
then
diffAndAccept "$i" out.xml exp.xml
else
echo "FAIL: $i should evaluate"
badExitCode=1
fi
elif test ! -e "lang/$i.exp-disabled"; then
if
expect 0 env \
NIX_PATH=lang/dir3:lang/dir4 \
HOME=/fake-home \
nix-instantiate "${flags[@]}" --eval --strict "lang/$i.nix" \
1> "lang/$i.out" \
2> "lang/$i.err"
then
sed -i "s!$(pwd)!/pwd!g" "lang/$i.out" "lang/$i.err"
diffAndAccept "$i" out exp
diffAndAccept "$i" err err.exp
else
echo "FAIL: $i should evaluate"
badExitCode=1
fi
fi
done
if test -n "${_NIX_TEST_ACCEPT-}"; then
if (( "$badDiff" )); then
echo 'Output did mot match, but accepted output as the persisted expected output.'
echo 'That means the next time the tests are run, they should pass.'
else
echo 'NOTE: Environment variable _NIX_TEST_ACCEPT is defined,'
echo 'indicating the unexpected output should be accepted as the expected output going forward,'
echo 'but no tests had unexpected output so there was no expected output to update.'
fi
if (( "$badExitCode" )); then
exit "$badExitCode"
else
skipTest "regenerating golden masters"
fi
else
if (( "$badDiff" )); then
echo ''
echo 'You can rerun this test with:'
echo ''
echo ' _NIX_TEST_ACCEPT=1 just test --suite installcheck -v functional-lang'
echo ''
echo 'to regenerate the files containing the expected output,'
echo 'and then view the git diff to decide whether a change is'
echo 'good/intentional or bad/unintentional.'
echo 'If the diff contains arbitrary or impure information,'
echo 'please improve the normalization that the test applies to the output.'
fi
exit $(( "$badExitCode" + "$badDiff" ))
fi
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