1 files changed, 19 insertions, 0 deletions
diff --git a/pyflakes/test/test_other.py b/pyflakes/test/test_other.py
index 14f213c..5bae7a0 100644
--- a/pyflakes/test/test_other.py
+++ b/pyflakes/test/test_other.py
@@ -151,6 +151,25 @@ class Test(TestCase):
         def a(): pass
         ''', m.RedefinedWhileUnused)
 
+    def test_redefinedUnderscoreFunction(self):
+        """
+        Test that shadowing a function definition named with underscore doesn't
+        raise anything.
+        """
+        self.flakes('''
+        def _(): pass
+        def _(): pass
+        ''')
+
+    def test_redefinedUnderscoreImportation(self):
+        """
+        Test that shadowing an underscore importation raises a warning.
+        """
+        self.flakes('''
+        from .i18n import _
+        def _(): pass
+        ''', m.RedefinedWhileUnused)
+
     def test_redefinedClassFunction(self):
         """
         Test that shadowing a function definition in a class suite with another