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nix/tests/functional/lang-gc.sh
2024-07-22 17:46:08 +02:00

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# shellcheck shell=bash
# Regression tests for the evaluator
# These are not in lang.sh because they generally only need to run in CI,
# whereas lang.sh is often run locally during development
source common.sh
set -o pipefail
skipTest "Too memory instensive for CI. Attempt to reduce memory usage was unsuccessful, because it made detection of the bug unreliable."
# Regression test for #11141. The stack pointer corrector assigned the base
# instead of the top (which resides at the low end of the stack). Sounds confusing?
# Stacks grow downwards, so that's why this mistake happened.
# My manual testing did not uncover this, because it didn't rely on the stack enough.
# https://github.com/NixOS/nix/issues/11141
test_issue_11141() {
mkdir -p "$TEST_ROOT/issue-11141/src"
cp lang-gc/issue-11141-gc-coroutine-test.nix "$TEST_ROOT/issue-11141/"
(
set +x;
n=10
echo "populating $TEST_ROOT/issue-11141/src with $((n*100)) files..."
for i in $(seq 0 $n); do
touch "$TEST_ROOT/issue-11141/src/file-$i"{0,1,2,3,4,5,6,7,8,9}{0,1,2,3,4,5,6,7,8,9}
done
)
GC_INITIAL_HEAP_SIZE=$((1024 * 1024)) \
NIX_SHOW_STATS=1 \
nix eval -vvv\
-f "$TEST_ROOT/issue-11141/issue-11141-gc-coroutine-test.nix"
}
test_issue_11141