1 files changed, 47 insertions, 0 deletions
diff --git a/examples/redis-unstable/modules/vector-sets/tests/vismember.py b/examples/redis-unstable/modules/vector-sets/tests/vismember.py
new file mode 100644
index 0000000..eabebca
--- /dev/null
+++ b/examples/redis-unstable/modules/vector-sets/tests/vismember.py
@@ -0,0 +1,47 @@
+from test import TestCase, generate_random_vector
+import struct
+
+class BasicVISMEMBER(TestCase):
+    def getname(self):
+        return "VISMEMBER basic functionality"
+
+    def test(self):
+        # Add multiple vectors to the vector set
+        vec1 = generate_random_vector(4)
+        vec2 = generate_random_vector(4)
+        vec_bytes1 = struct.pack('4f', *vec1)
+        vec_bytes2 = struct.pack('4f', *vec2)
+
+        # Create item keys
+        item1 = f'{self.test_key}:item:1'
+        item2 = f'{self.test_key}:item:2'
+        nonexistent_item = f'{self.test_key}:item:nonexistent'
+
+        # Add the vectors
+        self.redis.execute_command('VADD', self.test_key, 'FP32', vec_bytes1, item1)
+        self.redis.execute_command('VADD', self.test_key, 'FP32', vec_bytes2, item2)
+
+        # Test VISMEMBER with existing elements
+        result1 = self.redis.execute_command('VISMEMBER', self.test_key, item1)
+        assert result1 == 1, f"VISMEMBER should return 1 for existing item, got {result1}"
+
+        result2 = self.redis.execute_command('VISMEMBER', self.test_key, item2)
+        assert result2 == 1, f"VISMEMBER should return 1 for existing item, got {result2}"
+
+        # Test VISMEMBER with non-existent element
+        result3 = self.redis.execute_command('VISMEMBER', self.test_key, nonexistent_item)
+        assert result3 == 0, f"VISMEMBER should return 0 for non-existent item, got {result3}"
+
+        # Test VISMEMBER with non-existent key
+        nonexistent_key = f'{self.test_key}_nonexistent'
+        result4 = self.redis.execute_command('VISMEMBER', nonexistent_key, item1)
+        assert result4 == 0, f"VISMEMBER should return 0 for non-existent key, got {result4}"
+
+        # Test VISMEMBER after removing an element
+        self.redis.execute_command('VREM', self.test_key, item1)
+        result5 = self.redis.execute_command('VISMEMBER', self.test_key, item1)
+        assert result5 == 0, f"VISMEMBER should return 0 after element removal, got {result5}"
+
+        # Verify item2 still exists
+        result6 = self.redis.execute_command('VISMEMBER', self.test_key, item2)
+        assert result6 == 1, f"VISMEMBER should still return 1 for remaining item, got {result6}"