Added testcase for added release check

Author: ritvikpasham

Lib/test/memoryview/test_released_iter.py

@@ -0,0 +1,24 @@
+import unittest
+
+from unittest import TestCase
+
+
+class TestMemoryViewErrors(TestCase):
+    def test_memoryview_release(self):
+        av = memoryview(b"something")
+        av.release()
+
+        with self.assertRaises(ValueError):
+            av.__iter__()
+
+    def test_memoryview_direct_iter_no_error(self):
+        av = memoryview(b"something")
+        
+        try:
+            iterator = av.__iter__()
+            list(iterator)
+        except Exception as e:
+            self.fail(f"Direct __iter__() call raised an exception: {e}")
+
+if __name__ == "__main__":
+    unittest.main()