Invalidate units when loaded sources change

scripts/run_cli_tests.sh

@@ -48,4 +48,7 @@ if [[ ! -S "$socket_path" ]]; then
 fi
 
 url="http://localhost/tests/cli_runner.uce?action=${action}&include_kill=${include_kill}&skip_local_service_pages=${skip_local_service_pages}"
-exec curl -sS --fail-with-body --unix-socket "$socket_path" "$url"
+curl -sS --fail-with-body --unix-socket "$socket_path" "$url"
+if [[ "$action" == "run" ]]; then
+	scripts/test_dependency_invalidation.sh
+fi

scripts/test_dependency_invalidation.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+set -euo pipefail
+cd "$(dirname "$0")/.."
+
+test_name="dependency-cache-test-$$"
+source_dir="site/$test_name"
+cache_dir="${BIN_DIRECTORY:-/tmp/uce/work}$(pwd)/$source_dir"
+
+cleanup() {
+	rm -rf "$source_dir" "$cache_dir"
+}
+trap cleanup EXIT
+mkdir -p "$source_dir"
+
+printf '%s\n' \
+	'#ifndef UCE_DEPENDENCY_CACHE_CHILD' \
+	'#define UCE_DEPENDENCY_CACHE_CHILD' \
+	'String dependency_cache_marker() { return("dependency-marker-a"); }' \
+	'#endif' >"$source_dir/child.uce"
+printf '%s\n' \
+	'#load "child.uce"' \
+	'CLI(Request& context) { print(dependency_cache_marker()); }' \
+	'RENDER(Request& context) { print(dependency_cache_marker()); }' >"$source_dir/parent.uce"
+
+first=$(scripts/uce-cli "/$test_name/parent.uce")
+if [[ "$first" != *dependency-marker-a* ]]; then
+	echo "dependency invalidation setup failed: $first" >&2
+	exit 1
+fi
+
+sed -i 's/dependency-marker-a/dependency-marker-b/' "$source_dir/child.uce"
+second=$(scripts/uce-cli "/$test_name/parent.uce")
+if [[ "$second" != *dependency-marker-b* ]]; then
+	echo "loaded dependency change did not recompile parent: $second" >&2
+	exit 1
+fi
+
+echo "dependency invalidation passed"