arena

tests/expected/50-smoke.txt

@@ -280,4 +280,14 @@ empty-eq: true
 === 25. Array Loop Mutation ===
 loop-fill: 1 2 3 4
 compound: 13
+=== 26. #using ===
+using-x: 1
+using-y: 2
+using-z: 3
+pkt-id: 10
+pkt-ver: 42
+pkt-pay: 99
+sprite-px: 10
+sprite-r: 255
+sprite-scale: 1
 === DONE ===

tests/stress-http.sh

@@ -0,0 +1,68 @@
+#!/bin/bash
+# Stress test for the HTTP server's arena memory management.
+# Sends requests in rounds and reports memory stats per round.
+
+set -e
+
+PORT=9876
+
+# Build
+echo "building..."
+zig build
+SRC=examples/32-http-server.sx
+cp "$SRC" "$SRC.bak"
+sed "s/PORT :: 8080/PORT :: $PORT/" "$SRC.bak" > "$SRC"
+./zig-out/bin/sx build examples/32-http-server.sx -o /tmp/sx-http-stress
+mv "$SRC.bak" "$SRC"
+
+# Start server
+/tmp/sx-http-stress &
+SERVER_PID=$!
+sleep 0.3
+
+if ! kill -0 $SERVER_PID 2>/dev/null; then
+    echo "FAIL: server did not start"
+    exit 1
+fi
+
+cleanup() {
+    kill $SERVER_PID 2>/dev/null || true
+    wait $SERVER_PID 2>/dev/null || true
+    rm -f /tmp/sx-http-stress
+}
+trap cleanup EXIT
+
+initial_rss=$(ps -o rss= -p $SERVER_PID | tr -d ' ')
+
+run_round() {
+    local count=$1
+    local failures=0
+
+    for i in $(seq 1 $count); do
+        resp=$(curl -s -o /dev/null -w "%{http_code}" http://localhost:$PORT 2>/dev/null) || true
+        if [ "$resp" != "200" ]; then
+            failures=$((failures + 1))
+        fi
+    done
+
+    local rss=$(ps -o rss= -p $SERVER_PID | tr -d ' ')
+    local delta=$((rss - initial_rss))
+    printf "  %-8s requests  →  RSS: %s KB  (delta: %+d KB, %d failed)\n" "$count" "$rss" "$delta" "$failures"
+}
+
+echo ""
+echo "initial RSS: ${initial_rss} KB"
+echo ""
+
+run_round 2000
+run_round 3000
+run_round 10000
+
+final_rss=$(ps -o rss= -p $SERVER_PID | tr -d ' ')
+total=$((2000 + 3000 + 10000))
+echo ""
+echo "--- summary ---"
+echo "total requests: $total"
+echo "initial RSS:    ${initial_rss} KB"
+echo "final RSS:      ${final_rss} KB"
+echo "total delta:    $((final_rss - initial_rss)) KB"