uce/scripts/test_dependency_invalidation.sh
2026-07-13 08:59:11 +00:00

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#!/usr/bin/env bash
set -euo pipefail
cd "$(dirname "$0")/.."
test_name="dependency-cache-test-$$"
site_directory="${UCE_TEST_SITE_DIRECTORY:-site}"
source_dir="$site_directory/$test_name"
bin_directory="${BIN_DIRECTORY:-}"
if [[ -z "$bin_directory" && -r /etc/uce/settings.cfg ]]; then
bin_directory=$(awk -F= '/^[[:space:]]*BIN_DIRECTORY[[:space:]]*=/ {gsub(/^[[:space:]]+|[[:space:]]+$/, "", $2); print $2; exit}' /etc/uce/settings.cfg)
fi
bin_directory="${bin_directory:-/tmp/uce/work}"
cache_dir=""
cleanup() {
rm -rf "$source_dir"
if [[ -n "$cache_dir" ]]; then
rm -rf "$cache_dir"
fi
}
trap cleanup EXIT
mkdir -p "$source_dir"
cache_dir="$bin_directory$(realpath "$source_dir")"
printf '%s\n' \
'#ifndef UCE_DEPENDENCY_CACHE_CHILD' \
'#define UCE_DEPENDENCY_CACHE_CHILD' \
'String dependency_cache_marker() { return("dependency-marker-a"); }' \
'#endif' >"$source_dir/child.uce"
printf '%s\n' \
'#load "child.uce"' \
'CLI(Request& context) { print(dependency_cache_marker(), ":", request_perf()["worker_pid"].to_string()); }' \
'RENDER(Request& context) { print(dependency_cache_marker(), ":", request_perf()["worker_pid"].to_string()); }' >"$source_dir/parent.uce"
assert_marker() {
local path="$1"
local expected="$2"
local output
output=$(scripts/uce-cli "/$test_name/$path.uce")
if [[ "$output" != *"$expected"* ]]; then
echo "$path returned stale module; expected $expected: $output" >&2
exit 1
fi
}
assert_marker parent dependency-marker-a
sed -i 's/dependency-marker-a/dependency-marker-b/' "$source_dir/child.uce"
assert_marker parent dependency-marker-b
# Warm every configured worker, then replace the artifact while retaining its
# whole-second mtime. The worker cache must notice the nanosecond/ctime change.
for _ in {1..16}; do assert_marker parent dependency-marker-b; done
sed 's/dependency-marker-b/dependency-marker-c/' "$source_dir/child.uce" >"$source_dir/alternate-child.uce"
sed 's/child.uce/alternate-child.uce/' "$source_dir/parent.uce" >"$source_dir/alternate.uce"
assert_marker alternate dependency-marker-c
parent_wasm="$cache_dir/parent.uce.wasm"
alternate_wasm="$cache_dir/alternate.uce.wasm"
parent_mtime=$(stat -c %Y "$parent_wasm")
cp "$alternate_wasm" "$parent_wasm"
touch -d "@$parent_mtime" "$parent_wasm"
rm -f "$cache_dir/parent.uce.cwasm"
for _ in {1..16}; do assert_marker parent dependency-marker-c; done
worker_count=$(awk -F= '/^[[:space:]]*WORKER_COUNT[[:space:]]*=/ {gsub(/^[[:space:]]+|[[:space:]]+$/, "", $2); print $2; exit}' /etc/uce/settings.cfg 2>/dev/null || true)
worker_count="${worker_count:-4}"
worker_pids=""
for _ in {1..48}; do
output=$(scripts/uce-cli "/$test_name/parent.uce")
worker_pids+="${output##*:}"$'\n'
done
unique_workers=$(printf '%s' "$worker_pids" | sed '/^$/d' | sort -u | wc -l)
if (( unique_workers > worker_count )); then
echo "worker pool recycled during 48 requests: $unique_workers PIDs for $worker_count workers" >&2
exit 1
fi
echo "dependency invalidation passed"