diff --git a/tests/wiring.test.mjs b/tests/wiring.test.mjs
index 52217dd..a53b0fe 100644
--- a/tests/wiring.test.mjs
+++ b/tests/wiring.test.mjs
@@ -143,3 +143,14 @@ test('uploaded top HUD uses its new aspect ratio', async () => {
   assert.match(source, /\.steam-top \{[\s\S]*?aspect-ratio: 960 \/ 246/);
   assert.match(source, /@media \(min-width: 700px\)[\s\S]*?\.steam-top \{[\s\S]*?aspect-ratio: 960 \/ 246/);
 });
+
+
+test('game consumes analog helm vector and keeps broadside cooldowns independent', async () => {
+  const source = await read('src/game-v4.js');
+
+  assert.match(source, /addEventListener\('airship:helm-vector', this\.handleHelmVector\)/);
+  assert.match(source, /const throttleForward = this\.cursors\.up\.isDown \? 1 : Math\.max\(0, -helmY\)/);
+  assert.match(source, /const turnInput = keyboardTurn \|\| helmX/);
+  assert.match(source, /const broadside = side < 0 \? 'port' : 'starboard'/);
+  assert.match(source, /this\.lastPlayerShot\[broadside\]/);
+});