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