add negative test

mkrd · Nov 27, 2022 · 21b8a9f · 21b8a9f
1 parent a1c544b
commit 21b8a9f
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/tests/test_glom_writing.py b/tests/test_glom_writing.py
@@ -1,3 +1,5 @@
+import pytest
+
 import dictdatabase as DDB
 
 data = {
@@ -15,3 +17,11 @@ def test_glom_writing():
         purchase["status"] = "cancelled"
         session.write()
     assert DDB.at("users", key="users.Ben.status").read() == "cancelled"
+
+
+def test_glom_writing_sub_key_not_exists():
+    DDB.at("users").create(data, force_overwrite=True)
+    with pytest.raises(KeyError):
+        with DDB.at("users", key="users.SUBKEY").session() as (session, purchase):
+            purchase["status"] = "cancelled"
+            session.write()