"Test stackviewer, coverage 63%."
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from idlelib import stackviewer
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import unittest
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from test.support import requires
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from tkinter import Tk
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from idlelib.tree import TreeNode, ScrolledCanvas
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import sys
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class StackBrowserTest(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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svs = stackviewer.sys
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try:
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abc
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except NameError:
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svs.last_type, svs.last_value, svs.last_traceback = (
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sys.exc_info())
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requires('gui')
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cls.root = Tk()
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cls.root.withdraw()
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@classmethod
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def tearDownClass(cls):
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svs = stackviewer.sys
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del svs.last_traceback, svs.last_type, svs.last_value
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cls.root.update_idletasks()
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## for id in cls.root.tk.call('after', 'info'):
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## cls.root.after_cancel(id) # Need for EditorWindow.
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cls.root.destroy()
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del cls.root
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def test_init(self):
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sb = stackviewer.StackBrowser(self.root)
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isi = self.assertIsInstance
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isi(stackviewer.sc, ScrolledCanvas)
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isi(stackviewer.item, stackviewer.StackTreeItem)
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isi(stackviewer.node, TreeNode)
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if __name__ == '__main__':
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unittest.main(verbosity=2)
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