Add test for reimports on single line

1 files changed, 11 insertions, 1 deletions

diff --git a/pylint/test/unittest_checker_imports.py b/pylint/test/unittest_checker_imports.py
index be0bc48..8832878 100644
--- a/pylint/test/unittest_checker_imports.py
+++ b/pylint/test/unittest_checker_imports.py
@@ -3,7 +3,8 @@ import unittest
 
 from astroid import test_utils
 from pylint.checkers import imports
-from pylint.testutils import CheckerTestCase, set_config
+from pylint.testutils import CheckerTestCase, Message, set_config
+
 
 class ImportsCheckerTC(CheckerTestCase):
 
@@ -44,5 +45,14 @@ class ImportsCheckerTC(CheckerTestCase):
         with self.assertNoMessages():
             self.checker.visit_importfrom(node)
 
+    def test_visit_importfrom(self):
+        """
+        Test that duplicate imports on single line raise 'reimported'.
+        """
+        node = test_utils.extract_node('from time import sleep, sleep, time')
+        msg = Message(msg_id='reimported', node=node, args=('sleep', 1))
+        with self.assertAddsMessages(msg):
+            self.checker.visit_importfrom(node)
+
 if __name__ == '__main__':
     unittest.main()