1 files changed, 36 insertions, 4 deletions
diff --git a/Lib/idlelib/idle_test/test_editor.py b/Lib/idlelib/idle_test/test_editor.py
index 64a2a88b7e3..12bc8473668 100644
--- a/Lib/idlelib/idle_test/test_editor.py
+++ b/Lib/idlelib/idle_test/test_editor.py
@@ -1,14 +1,46 @@
+"Test editor, coverage 35%."
+
+from idlelib import editor
 import unittest
-from idlelib.editor import EditorWindow
+from test.support import requires
+from tkinter import Tk
+
+Editor = editor.EditorWindow
+
+
+class EditorWindowTest(unittest.TestCase):
+
+    @classmethod
+    def setUpClass(cls):
+        requires('gui')
+        cls.root = Tk()
+        cls.root.withdraw()
+
+    @classmethod
+    def tearDownClass(cls):
+        cls.root.update_idletasks()
+        for id in cls.root.tk.call('after', 'info'):
+            cls.root.after_cancel(id)
+        cls.root.destroy()
+        del cls.root
+
+    def test_init(self):
+        e = Editor(root=self.root)
+        self.assertEqual(e.root, self.root)
+        e._close()
+
+
+class EditorFunctionTest(unittest.TestCase):
 
-class Editor_func_test(unittest.TestCase):
     def test_filename_to_unicode(self):
-        func = EditorWindow._filename_to_unicode
-        class dummy(): filesystemencoding = 'utf-8'
+        func = Editor._filename_to_unicode
+        class dummy():
+            filesystemencoding = 'utf-8'
         pairs = (('abc', 'abc'), ('a\U00011111c', 'a\ufffdc'),
                  (b'abc', 'abc'), (b'a\xf0\x91\x84\x91c', 'a\ufffdc'))
         for inp, out in pairs:
             self.assertEqual(func(dummy, inp), out)
 
+
 if __name__ == '__main__':
     unittest.main(verbosity=2)