From 6a55acb63ef528a8f6bb6bcd904f6fafafd78ba1 Mon Sep 17 00:00:00 2001
From: Dolan Murvihill <dolan@directdemocracysolutions.com>
Date: Thu, 1 Feb 2024 20:36:38 -0800
Subject: [PATCH] Add failing test for crowd-out condition

---
 test/semaphoreSuite.ts | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/test/semaphoreSuite.ts b/test/semaphoreSuite.ts
index 4c9bc6c..11c0461 100644
--- a/test/semaphoreSuite.ts
+++ b/test/semaphoreSuite.ts
@@ -50,6 +50,24 @@ export const semaphoreSuite = (factory: (maxConcurrency: number, err?: Error) =>
         assert.deepStrictEqual(values.sort(), [2, 2]);
     });
 
+    test('acquire allows light items to run eventually', async () => {
+        let done = false;
+        async function lightLoop() {
+            while (!done) {
+                const [,release] = await semaphore.acquire(1);
+                await new Promise((resolve) => { setTimeout(resolve, 10); });
+                release();
+            }
+        }
+        lightLoop();
+        await clock.tickAsync(5);
+        lightLoop();
+        semaphore.acquire(2).then(() => { done = true; });
+        await clock.tickAsync(10);
+        await clock.tickAsync(10);
+        assert.strictEqual(done, true);
+    });
+
     test('acquire blocks when the semaphore has reached zero until it is released again', async () => {
         const values: Array<number> = [];