Fixed the handling of total=False in TypedDict

Fixes #94.

docs/versionhistory.rst

@@ -3,6 +3,10 @@ Version history
 
 This library adheres to `Semantic Versioning 2.0 <https://semver.org/#semantic-versioning-200>`_.
 
+**UNRELEASED**
+
+- Fixed the handling of ``total=False`` in ``TypedDict``
+
 **2.6.1** (2019-11-17)
 
 - Fixed import errors when using the import hook and trying to import a module that has both a

tests/test_typeguard_py38.py

@@ -14,14 +14,16 @@ def foo(a: Literal[1, 6, 8]):
     pytest.raises(TypeError, foo, 4).match(r'must be one of \(1, 6, 8\); got 4 instead$')
 
 
-@pytest.mark.parametrize('value, error_re', [
-    ({'x': 6, 'y': 'foo'}, None),
-    ({'y': 'foo'}, None),
-    ({'y': 3}, 'type of dict item "y" for argument "arg" must be str; got int instead'),
-    ({}, 'the required key "y" is missing for argument "arg"')
-], ids=['correct', 'missing_x', 'wrong_type', 'missing_y'])
-def test_typed_dict(value, error_re):
-    class DummyDict(TypedDict):
+@pytest.mark.parametrize('value, total, error_re', [
+    ({'x': 6, 'y': 'foo'}, True, None),
+    ({'y': 'foo'}, True, None),
+    ({'y': 3}, True, 'type of dict item "y" for argument "arg" must be str; got int instead'),
+    ({}, True, 'the required key "y" is missing for argument "arg"'),
+    ({}, False, None),
+    ({'x': 'abc'}, False, 'type of dict item "x" for argument "arg" must be int; got str instead')
+], ids=['correct', 'missing_x', 'wrong_y', 'missing_y', 'empty_dict', 'wrong_x'])
+def test_typed_dict(value, total, error_re):
+    class DummyDict(TypedDict, total=total):
         x: int = 0
         y: str