add test

IPython/core/tests/test_async_helpers.py

@@ -276,6 +276,10 b' class AsyncTest(TestCase):'
         """
         )
 
+    def test_memory_error(self):
+        with self.assertRaises(MemoryError):
+            iprc("(" * 200 + ")" * 200)
+
     @skip_without('curio')
     def test_autoawait_curio(self):
         iprc("%autoawait curio")

IPython/core/tests/test_ultratb.py

@@ -253,6 +253,13 b' bar()'
                 ip.showsyntaxerror()
 
 
+class MemoryErrorTest(unittest.TestCase):
+    def test_memoryerror(self):
+        memoryerror_code = "(" * 200 + ")" * 200
+        with tt.AssertPrints("MemoryError"):
+            ip.run_cell(memoryerror_code)
+
+
 class Python3ChainedExceptionsTest(unittest.TestCase):
     DIRECT_CAUSE_ERROR_CODE = """
 try: