From f7de3dd02d5186f30f69b80f5ee00376581f1d23 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Thu, 2 Apr 2015 10:35:57 +0300
Subject: Issue #21526: Tkinter now supports new boolean type in Tcl 8.5.

---
 Lib/test/test_tcl.py | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'Lib/test/test_tcl.py')

diff --git a/Lib/test/test_tcl.py b/Lib/test/test_tcl.py
index da8f6299d6b..d01f9694dfb 100644
--- a/Lib/test/test_tcl.py
+++ b/Lib/test/test_tcl.py
@@ -378,6 +378,21 @@ class TclTest(unittest.TestCase):
         if tcl_version >= (8, 5):
             check('2**64', True)
 
+    def test_booleans(self):
+        tcl = self.interp
+        def check(expr, expected):
+            result = tcl.call('expr', expr)
+            self.assertEqual(result, expected)
+            self.assertIsInstance(result, int)
+        check('true', True)
+        check('yes', True)
+        check('on', True)
+        check('false', False)
+        check('no', False)
+        check('off', False)
+        check('1 < 2', True)
+        check('1 > 2', False)
+
     def test_passing_values(self):
         def passValue(value):
             return self.interp.call('set', '_', value)
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