Add isinstance tests for validation classes.

contains-io · Nov 27, 2017 · 0e6c55b · 0e6c55b
1 parent 6922c1a
commit 0e6c55b
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/tests/test_types.py b/tests/test_types.py
@@ -109,3 +109,12 @@ class TestClass(object):
 
     with pytest.raises(TypeError):
         TestClass()
+
+
+def test_isinstance():
+    """Test that instances of sliced type are instances of validation type."""
+    Age = typet.Bounded[int, 0:150]
+    assert isinstance(25, Age) is True
+    assert isinstance(-5, Age) is False
+    assert isinstance(200, Age) is False
+    assert isinstance('not an int', Age) is False