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Issue #18910: test_textView - since all tests require 'gui', make root global.

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Subclass TextViewer to add mock methods instead of monkey-patching it.
This commit is contained in:
Terry Jan Reedy 2014-06-06 17:43:19 -04:00
parent 780b585fbc
commit 4a3f135c8d
1 changed files with 35 additions and 34 deletions
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69
Lib/idlelib/idle_test/test_textview.py
View file

@ -1,58 +1,60 @@
'''Test the functions and main class method of textView.py.'''
'''Test the functions and main class method of textView.py.
Since all methods and functions create (or destroy) a TextViewer, which
is a widget containing multiple widgets, all tests must be gui tests.
Using mock Text would not change this. Other mocks are used to retrieve
information about calls.
The coverage is essentially 100%.
'''
from test.support import requires
requires('gui')
import unittest
import os
from test.support import requires
from tkinter import Tk, Text, TclError
from idlelib import textView as tv
from idlelib.idle_test.mock_idle import Func
from idlelib.idle_test.mock_tk import Mbox
orig_mbox = tv.tkMessageBox
def setUpModule():
global root
root = Tk()
def tearDownModule():
global root
root.destroy()
del root
class TV(tv.TextViewer): # used by TextViewTest
transient = Func()
grab_set = Func()
wait_window = Func()
class TextViewTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
requires('gui')
cls.root = Tk()
cls.TV = TV = tv.TextViewer
TV.transient = Func()
TV.grab_set = Func()
TV.wait_window = Func()
@classmethod
def tearDownClass(cls):
cls.root.destroy()
TV = cls.TV
del cls.root, cls.TV
del TV.transient, TV.grab_set, TV.wait_window
def setUp(self):
TV = self.TV
TV.transient.__init__()
TV.grab_set.__init__()
TV.wait_window.__init__()
def test_init_modal(self):
TV = self.TV
view = TV(self.root, 'Title', 'test text')
view = TV(root, 'Title', 'test text')
self.assertTrue(TV.transient.called)
self.assertTrue(TV.grab_set.called)
self.assertTrue(TV.wait_window.called)
view.Ok()
def test_init_nonmodal(self):
TV = self.TV
view = TV(self.root, 'Title', 'test text', modal=False)
view = TV(root, 'Title', 'test text', modal=False)
self.assertFalse(TV.transient.called)
self.assertFalse(TV.grab_set.called)
self.assertFalse(TV.wait_window.called)
view.Ok()
def test_ok(self):
view = self.TV(self.root, 'Title', 'test text', modal=False)
view = TV(root, 'Title', 'test text', modal=False)
view.destroy = Func()
view.Ok()
self.assertTrue(view.destroy.called)
@ -64,33 +66,32 @@ class textviewTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
requires('gui')
cls.root = Tk()
cls.orig_mbox = tv.tkMessageBox
tv.tkMessageBox = Mbox
@classmethod
def tearDownClass(cls):
cls.root.destroy()
del cls.root
tv.tkMessageBox = orig_mbox
tv.tkMessageBox = cls.orig_mbox
del cls.orig_mbox
def test_view_text(self):
# If modal True, tkinter will error with 'can't invoke "event" command'
view = tv.view_text(self.root, 'Title', 'test text', modal=False)
view = tv.view_text(root, 'Title', 'test text', modal=False)
self.assertIsInstance(view, tv.TextViewer)
def test_view_file(self):
test_dir = os.path.dirname(__file__)
testfile = os.path.join(test_dir, 'test_textview.py')
view = tv.view_file(self.root, 'Title', testfile, modal=False)
view = tv.view_file(root, 'Title', testfile, modal=False)
self.assertIsInstance(view, tv.TextViewer)
self.assertIn('Test', view.textView.get('1.0', '1.end'))
view.Ok()
# Mock messagebox will be used and view_file will not return anything
testfile = os.path.join(test_dir, '../notthere.py')
view = tv.view_file(self.root, 'Title', testfile, modal=False)
view = tv.view_file(root, 'Title', testfile, modal=False)
self.assertIsNone(view)
if __name__ == '__main__':
unittest.main(verbosity=2)