chore: add test for unhandled types

aws-powertools · Feb 20, 2021 · a7f8199 · a7f8199
1 parent a3cdef8
commit a7f8199
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/tests/unit/test_json_encoder.py b/tests/unit/test_json_encoder.py
@@ -1,6 +1,8 @@
 import decimal
 import json
 
+import pytest
+
 from aws_lambda_powertools.shared.json_encoder import Encoder
 
 
@@ -12,3 +14,11 @@ def test_jsonencode_decimal():
 def test_jsonencode_decimal_nan():
     result = json.dumps({"val": decimal.Decimal("NaN")}, cls=Encoder)
     assert result == '{"val": NaN}'
+
+
+def test_jsonencode_calls_default():
+    class CustomClass:
+        pass
+
+    with pytest.raises(TypeError):
+        json.dumps({"val": CustomClass()}, cls=Encoder)