golden hour

/opt/alt/python37/lib64/python3.7/idlelib/idle_test

File/Folder	Size	Actions
README.txt	8.52 KB
__init__.py	712 B
__pycache__	-
htest.py	14.83 KB
mock_idle.py	1.9 KB
mock_tk.py	11.35 KB
template.py	642 B
test_autocomplete.py	10.47 KB
test_autocomplete_w.py	709 B
test_autoexpand.py	4.53 KB
test_browser.py	7.78 KB
test_calltip.py	9.7 KB
test_calltip_w.py	686 B
test_codecontext.py	15.74 KB
test_colorizer.py	14.67 KB
test_config.py	31.29 KB
test_config_key.py	9.48 KB
test_configdialog.py	53.08 KB
test_debugger.py	571 B
test_debugger_r.py	631 B
test_debugobj.py	1.52 KB
test_debugobj_r.py	545 B
test_delegator.py	1.53 KB
test_editmenu.py	2.5 KB
test_editor.py	7.35 KB
test_filelist.py	795 B
test_format.py	23.06 KB
test_grep.py	4.95 KB
test_help.py	849 B
test_help_about.py	5.78 KB
test_history.py	5.39 KB
test_hyperparser.py	8.87 KB
test_iomenu.py	1.25 KB
test_macosx.py	3.23 KB
test_mainmenu.py	594 B
test_multicall.py	1.29 KB
test_outwin.py	5.42 KB
test_parenmatch.py	3.47 KB
test_pathbrowser.py	2.37 KB
test_percolator.py	3.97 KB
test_pyparse.py	18.78 KB
test_pyshell.py	2.12 KB
test_query.py	14.92 KB
test_redirector.py	4.08 KB
test_replace.py	8.11 KB
test_rpc.py	805 B
test_run.py	11.46 KB
test_runscript.py	777 B
test_scrolledlist.py	496 B
test_search.py	2.4 KB
test_searchbase.py	5.5 KB
test_searchengine.py	11.27 KB
test_sidebar.py	12.92 KB
test_squeezer.py	19.62 KB
test_stackviewer.py	1.18 KB
test_statusbar.py	1.11 KB
test_text.py	6.81 KB
test_textview.py	7.19 KB
test_tooltip.py	5.26 KB
test_tree.py	1.71 KB
test_undo.py	4.13 KB
test_warning.py	2.68 KB
test_window.py	1.05 KB
test_zoomheight.py	999 B

Edit: test_help_about.py

"""Test help_about, coverage 100%.
help_about.build_bits branches on sys.platform='darwin'.
'100% combines coverage on Mac and others.
"""

from idlelib import help_about
import unittest
from test.support import requires, findfile
from tkinter import Tk, TclError
from idlelib.idle_test.mock_idle import Func
from idlelib.idle_test.mock_tk import Mbox_func
from idlelib import textview
import os.path
from platform import python_version

About = help_about.AboutDialog

class LiveDialogTest(unittest.TestCase):
    """Simulate user clicking buttons other than [Close].

Test that invoked textview has text from source.
    """
    @classmethod
    def setUpClass(cls):
        requires('gui')
        cls.root = Tk()
        cls.root.withdraw()
        cls.dialog = About(cls.root, 'About IDLE', _utest=True)

@classmethod
    def tearDownClass(cls):
        del cls.dialog
        cls.root.update_idletasks()
        cls.root.destroy()
        del cls.root

def test_build_bits(self):
        self.assertIn(help_about.build_bits(), ('32', '64'))

def test_dialog_title(self):
        """Test about dialog title"""
        self.assertEqual(self.dialog.title(), 'About IDLE')

def test_dialog_logo(self):
        """Test about dialog logo."""
        path, file = os.path.split(self.dialog.icon_image['file'])
        fn, ext = os.path.splitext(file)
        self.assertEqual(fn, 'idle_48')

def test_printer_buttons(self):
        """Test buttons whose commands use printer function."""
        dialog = self.dialog
        button_sources = [(dialog.py_license, license, 'license'),
                          (dialog.py_copyright, copyright, 'copyright'),
                          (dialog.py_credits, credits, 'credits')]

for button, printer, name in button_sources:
            with self.subTest(name=name):
                printer._Printer__setup()
                button.invoke()
                get = dialog._current_textview.viewframe.textframe.text.get
                lines = printer._Printer__lines
                if len(lines) < 2:
                    self.fail(name + ' full text was not found')
                self.assertEqual(lines[0], get('1.0', '1.end'))
                self.assertEqual(lines[1], get('2.0', '2.end'))
                dialog._current_textview.destroy()

def test_file_buttons(self):
        """Test buttons that display files."""
        dialog = self.dialog
        button_sources = [(self.dialog.readme, 'README.txt', 'readme'),
                          (self.dialog.idle_news, 'NEWS.txt', 'news'),
                          (self.dialog.idle_credits, 'CREDITS.txt', 'credits')]

for button, filename, name in button_sources:
            with  self.subTest(name=name):
                button.invoke()
                fn = findfile(filename, subdir='idlelib')
                get = dialog._current_textview.viewframe.textframe.text.get
                with open(fn, encoding='utf-8') as f:
                    self.assertEqual(f.readline().strip(), get('1.0', '1.end'))
                    f.readline()
                    self.assertEqual(f.readline().strip(), get('3.0', '3.end'))
                dialog._current_textview.destroy()

class DefaultTitleTest(unittest.TestCase):
    "Test default title."

@classmethod
    def setUpClass(cls):
        requires('gui')
        cls.root = Tk()
        cls.root.withdraw()
        cls.dialog = About(cls.root, _utest=True)

@classmethod
    def tearDownClass(cls):
        del cls.dialog
        cls.root.update_idletasks()
        cls.root.destroy()
        del cls.root

def test_dialog_title(self):
        """Test about dialog title"""
        self.assertEqual(self.dialog.title(),
                         f'About IDLE {python_version()}'
                         f' ({help_about.build_bits()} bit)')

class CloseTest(unittest.TestCase):
    """Simulate user clicking [Close] button"""

@classmethod
    def setUpClass(cls):
        requires('gui')
        cls.root = Tk()
        cls.root.withdraw()
        cls.dialog = About(cls.root, 'About IDLE', _utest=True)

@classmethod
    def tearDownClass(cls):
        del cls.dialog
        cls.root.update_idletasks()
        cls.root.destroy()
        del cls.root

def test_close(self):
        self.assertEqual(self.dialog.winfo_class(), 'Toplevel')
        self.dialog.button_ok.invoke()
        with self.assertRaises(TclError):
            self.dialog.winfo_class()

class Dummy_about_dialog():
    # Dummy class for testing file display functions.
    idle_credits = About.show_idle_credits
    idle_readme = About.show_readme
    idle_news = About.show_idle_news
    # Called by the above
    display_file_text = About.display_file_text
    _utest = True

class DisplayFileTest(unittest.TestCase):
    """Test functions that display files.

While somewhat redundant with gui-based test_file_dialog,
    these unit tests run on all buildbots, not just a few.
    """
    dialog = Dummy_about_dialog()

@classmethod
    def setUpClass(cls):
        cls.orig_error = textview.showerror
        cls.orig_view = textview.view_text
        cls.error = Mbox_func()
        cls.view = Func()
        textview.showerror = cls.error
        textview.view_text = cls.view

@classmethod
    def tearDownClass(cls):
        textview.showerror = cls.orig_error
        textview.view_text = cls.orig_view

def test_file_display(self):
        for handler in (self.dialog.idle_credits,
                        self.dialog.idle_readme,
                        self.dialog.idle_news):
            self.error.message = ''
            self.view.called = False
            with self.subTest(handler=handler):
                handler()
                self.assertEqual(self.error.message, '')
                self.assertEqual(self.view.called, True)

if __name__ == '__main__':
    unittest.main(verbosity=2)