add check mx record

users-events/tests/events/test_check_mx_record.py

@@ -0,0 +1,20 @@
+from aws_lambda_powertools.utilities.typing.lambda_context import LambdaContext
+from layercake.dynamodb import DynamoDBPersistenceLayer
+
+import events.check_mx_record as app
+
+
+def test_check_mx_record(
+    lambda_context: LambdaContext,
+    dynamodb_persistence_layer: DynamoDBPersistenceLayer,
+):
+    event = {
+        'detail': {
+            'new_image': {
+                'id': '123',
+                'sk': 'emails#sergio@somosbeta.com.br',
+            },
+        },
+    }
+
+    assert app.lambda_handler(event, lambda_context)  # type: ignore