From 5d8dfe892a2ea89f706ee140c3bdcfd89fe03fda Mon Sep 17 00:00:00 2001
From: Mitja Felicijan <mitja.felicijan@gmail.com>
Date: Wed, 21 Jan 2026 22:40:55 +0100
Subject: Add Redis source code for testing

---
 .../vector-sets/tests/concurrent_vsim_and_del.py   | 48 ++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 examples/redis-unstable/modules/vector-sets/tests/concurrent_vsim_and_del.py

(limited to 'examples/redis-unstable/modules/vector-sets/tests/concurrent_vsim_and_del.py')

diff --git a/examples/redis-unstable/modules/vector-sets/tests/concurrent_vsim_and_del.py b/examples/redis-unstable/modules/vector-sets/tests/concurrent_vsim_and_del.py
new file mode 100644
index 0000000..9bbf011
--- /dev/null
+++ b/examples/redis-unstable/modules/vector-sets/tests/concurrent_vsim_and_del.py
@@ -0,0 +1,48 @@
+from test import TestCase, fill_redis_with_vectors, generate_random_vector
+import threading, time
+
+class ConcurrentVSIMAndDEL(TestCase):
+    def getname(self):
+        return "Concurrent VSIM and DEL operations"
+
+    def estimated_runtime(self):
+        return 2
+
+    def test(self):
+        # Fill the key with 5000 random vectors
+        dim = 128
+        count = 5000
+        fill_redis_with_vectors(self.redis, self.test_key, count, dim)
+
+        # List to store results from threads
+        thread_results = []
+
+        def vsim_thread():
+            """Thread function to perform VSIM operations until the key is deleted"""
+            while True:
+                query_vec = generate_random_vector(dim)
+                result = self.redis.execute_command('VSIM', self.test_key, 'VALUES', dim,
+                                                   *[str(x) for x in query_vec], 'COUNT', 10)
+                if not result:
+                    # Empty array detected, key is deleted
+                    thread_results.append(True)
+                    break
+
+        # Start multiple threads to perform VSIM operations
+        threads = []
+        for _ in range(4):  # Start 4 threads
+            t = threading.Thread(target=vsim_thread)
+            t.start()
+            threads.append(t)
+
+        # Delete the key while threads are still running
+        time.sleep(1)
+        self.redis.delete(self.test_key)
+
+        # Wait for all threads to finish (they will exit once they detect the key is deleted)
+        for t in threads:
+            t.join()
+
+        # Verify that all threads detected an empty array or error
+        assert len(thread_results) == len(threads), "Not all threads detected the key deletion"
+        assert all(thread_results), "Some threads did not detect an empty array or error after DEL"
-- 
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