Unify type representation in error messages

hukkin · Oct 9, 2024 · ce2a466 · ce2a466
1 parent ac553e1
commit ce2a466
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Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/src/tomli_w/_writer.py b/src/tomli_w/_writer.py
@@ -112,7 +112,9 @@ def format_literal(obj: object, ctx: Context, *, nest_level: int = 0) -> str:
         return format_inline_array(obj, ctx, nest_level)
     if isinstance(obj, Mapping):
         return format_inline_table(obj, ctx)
-    raise TypeError(f"Object of type {type(obj)} is not TOML serializable")
+    raise TypeError(
+        f"Object of type '{type(obj).__qualname__}' is not TOML serializable"
+    )
 
 
 def format_decimal(obj: Decimal) -> str:

diff --git a/tests/test_invalid.py b/tests/test_invalid.py
@@ -6,8 +6,9 @@
 
 
 def test_invalid_type_nested():
-    with pytest.raises(TypeError):
+    with pytest.raises(TypeError) as exc_info:
         tomli_w.dumps({"bytearr": bytearray()})
+    assert str(exc_info.value) == "Object of type 'bytearray' is not TOML serializable"
 
 
 def test_invalid_time():