| 1 | n/a | import os |
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| 2 | n/a | import sys |
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| 3 | n/a | import unittest |
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| 4 | n/a | import test.support as test_support |
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| 5 | n/a | from tkinter import Tcl, TclError |
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| 6 | n/a | |
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| 7 | n/a | test_support.requires('gui') |
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| 8 | n/a | |
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| 9 | n/a | class TkLoadTest(unittest.TestCase): |
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| 10 | n/a | |
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| 11 | n/a | @unittest.skipIf('DISPLAY' not in os.environ, 'No $DISPLAY set.') |
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| 12 | n/a | def testLoadTk(self): |
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| 13 | n/a | tcl = Tcl() |
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| 14 | n/a | self.assertRaises(TclError,tcl.winfo_geometry) |
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| 15 | n/a | tcl.loadtk() |
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| 16 | n/a | self.assertEqual('1x1+0+0', tcl.winfo_geometry()) |
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| 17 | n/a | tcl.destroy() |
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| 18 | n/a | |
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| 19 | n/a | def testLoadTkFailure(self): |
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| 20 | n/a | old_display = None |
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| 21 | n/a | if sys.platform.startswith(('win', 'darwin', 'cygwin')): |
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| 22 | n/a | # no failure possible on windows? |
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| 23 | n/a | |
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| 24 | n/a | # XXX Maybe on tk older than 8.4.13 it would be possible, |
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| 25 | n/a | # see tkinter.h. |
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| 26 | n/a | return |
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| 27 | n/a | with test_support.EnvironmentVarGuard() as env: |
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| 28 | n/a | if 'DISPLAY' in os.environ: |
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| 29 | n/a | del env['DISPLAY'] |
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| 30 | n/a | # on some platforms, deleting environment variables |
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| 31 | n/a | # doesn't actually carry through to the process level |
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| 32 | n/a | # because they don't support unsetenv |
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| 33 | n/a | # If that's the case, abort. |
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| 34 | n/a | with os.popen('echo $DISPLAY') as pipe: |
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| 35 | n/a | display = pipe.read().strip() |
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| 36 | n/a | if display: |
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| 37 | n/a | return |
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| 38 | n/a | |
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| 39 | n/a | tcl = Tcl() |
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| 40 | n/a | self.assertRaises(TclError, tcl.winfo_geometry) |
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| 41 | n/a | self.assertRaises(TclError, tcl.loadtk) |
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| 42 | n/a | |
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| 43 | n/a | tests_gui = (TkLoadTest, ) |
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| 44 | n/a | |
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| 45 | n/a | if __name__ == "__main__": |
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| 46 | n/a | test_support.run_unittest(*tests_gui) |
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