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# Common tests for test_tkinter/test_widgets.py and test_ttk/test_widgets.py
import unittest
import tkinter
from tkinter.test.support import (AbstractTkTest, tcl_version, requires_tcl,
get_tk_patchlevel, pixels_conv, tcl_obj_eq)
import test.support
noconv = False
if get_tk_patchlevel() < (8, 5, 11):
noconv = str
pixels_round = round
if get_tk_patchlevel()[:3] == (8, 5, 11):
# Issue #19085: Workaround a bug in Tk
# http://core.tcl.tk/tk/info/3497848
pixels_round = int
_sentinel = object()
class AbstractWidgetTest(AbstractTkTest):
_conv_pixels = staticmethod(pixels_round)
_conv_pad_pixels = None
_stringify = False
@property
def scaling(self):
try:
return self._scaling
except AttributeError:
self._scaling = float(self.root.call('tk', 'scaling'))
return self._scaling
def _str(self, value):
if not self._stringify and self.wantobjects and tcl_version >= (8, 6):
return value
if isinstance(value, tuple):
return ' '.join(map(self._str, value))
return str(value)
def assertEqual2(self, actual, expected, msg=None, eq=object.__eq__):
if eq(actual, expected):
return
self.assertEqual(actual, expected, msg)
def checkParam(self, widget, name, value, *, expected=_sentinel,
conv=False, eq=None):
widget[name] = value
if expected is _sentinel:
expected = value
if conv:
expected = conv(expected)
if self._stringify or not self.wantobjects:
if isinstance(expected, tuple):
expected = tkinter._join(expected)
else:
expected = str(expected)
if eq is None:
eq = tcl_obj_eq
self.assertEqual2(widget[name], expected, eq=eq)
self.assertEqual2(widget.cget(name), expected, eq=eq)
t = widget.configure(name)
self.assertEqual(len(t), 5)
self.assertEqual2(t[4], expected, eq=eq)
def checkInvalidParam(self, widget, name, value, errmsg=None, *,
keep_orig=True):
orig = widget[name]
if errmsg is not None:
errmsg = errmsg.format(value)
with self.assertRaises(tkinter.TclError) as cm:
widget[name] = value
if errmsg is not None:
self.assertEqual(str(cm.exception), errmsg)
if keep_orig:
self.assertEqual(widget[name], orig)
else:
widget[name] = orig
with self.assertRaises(tkinter.TclError) as cm:
widget.configure({name: value})
if errmsg is not None:
self.assertEqual(str(cm.exception), errmsg)
if keep_orig:
self.assertEqual(widget[name], orig)
else:
widget[name] = orig
def checkParams(self, widget, name, *values, **kwargs):
for value in values:
self.checkParam(widget, name, value, **kwargs)
def checkIntegerParam(self, widget, name, *values, **kwargs):
self.checkParams(widget, name, *values, **kwargs)
self.checkInvalidParam(widget, name, '',
errmsg='expected integer but got ""')
self.checkInvalidParam(widget, name, '10p',
errmsg='expected integer but got "10p"')
self.checkInvalidParam(widget, name, 3.2,
errmsg='expected integer but got "3.2"')
def checkFloatParam(self, widget, name, *values, conv=float, **kwargs):
for value in values:
self.checkParam(widget, name, value, conv=conv, **kwargs)
self.checkInvalidParam(widget, name, '',
errmsg='expected floating-point number but got ""')
self.checkInvalidParam(widget, name, 'spam',
errmsg='expected floating-point number but got "spam"')
def checkBooleanParam(self, widget, name):
for value in (False, 0, 'false', 'no', 'off'):
self.checkParam(widget, name, value, expected=0)
for value in (True, 1, 'true', 'yes', 'on'):
self.checkParam(widget, name, value, expected=1)
self.checkInvalidParam(widget, name, '',
errmsg='expected boolean value but got ""')
self.checkInvalidParam(widget, name, 'spam',
errmsg='expected boolean value but got "spam"')
def checkColorParam(self, widget, name, *, allow_empty=None, **kwargs):
self.checkParams(widget, name,
'#ff0000', '#00ff00', '#0000ff', '#123456',
'red', 'green', 'blue', 'white', 'black', 'grey',
**kwargs)
self.checkInvalidParam(widget, name, 'spam',
errmsg='unknown color name "spam"')
def checkCursorParam(self, widget, name, **kwargs):
self.checkParams(widget, name, 'arrow', 'watch', 'cross', '',**kwargs)
if tcl_version >= (8, 5):
self.checkParam(widget, name, 'none')
self.checkInvalidParam(widget, name, 'spam',
errmsg='bad cursor spec "spam"')
def checkCommandParam(self, widget, name):
def command(*args):
pass
widget[name] = command
self.assertTrue(widget[name])
self.checkParams(widget, name, '')
def checkEnumParam(self, widget, name, *values, errmsg=None, **kwargs):
self.checkParams(widget, name, *values, **kwargs)
if errmsg is None:
errmsg2 = ' %s "{}": must be %s%s or %s' % (
name,
', '.join(values[:-1]),
',' if len(values) > 2 else '',
values[-1])
self.checkInvalidParam(widget, name, '',
errmsg='ambiguous' + errmsg2)
errmsg = 'bad' + errmsg2
self.checkInvalidParam(widget, name, 'spam', errmsg=errmsg)
def checkPixelsParam(self, widget, name, *values,
conv=None, keep_orig=True, **kwargs):
if conv is None:
conv = self._conv_pixels
for value in values:
expected = _sentinel
conv1 = conv
if isinstance(value, str):
if conv1 and conv1 is not str:
expected = pixels_conv(value) * self.scaling
conv1 = round
self.checkParam(widget, name, value, expected=expected,
conv=conv1, **kwargs)
self.checkInvalidParam(widget, name, '6x',
errmsg='bad screen distance "6x"', keep_orig=keep_orig)
self.checkInvalidParam(widget, name, 'spam',
errmsg='bad screen distance "spam"', keep_orig=keep_orig)
def checkReliefParam(self, widget, name):
self.checkParams(widget, name,
'flat', 'groove', 'raised', 'ridge', 'solid', 'sunken')
errmsg='bad relief "spam": must be '\
'flat, groove, raised, ridge, solid, or sunken'
if tcl_version < (8, 6):
errmsg = None
self.checkInvalidParam(widget, name, 'spam',
errmsg=errmsg)
def checkImageParam(self, widget, name):
image = tkinter.PhotoImage(master=self.root, name='image1')
self.checkParam(widget, name, image, conv=str)
self.checkInvalidParam(widget, name, 'spam',
errmsg='image "spam" doesn\'t exist')
widget[name] = ''
def checkVariableParam(self, widget, name, var):
self.checkParam(widget, name, var, conv=str)
def assertIsBoundingBox(self, bbox):
self.assertIsNotNone(bbox)
self.assertIsInstance(bbox, tuple)
if len(bbox) != 4:
self.fail('Invalid bounding box: %r' % (bbox,))
for item in bbox:
if not isinstance(item, int):
self.fail('Invalid bounding box: %r' % (bbox,))
break
def test_keys(self):
widget = self.create()
keys = widget.keys()
self.assertEqual(sorted(keys), sorted(widget.configure()))
for k in keys:
widget[k]
# Test if OPTIONS contains all keys
if test.support.verbose:
aliases = {
'bd': 'borderwidth',
'bg': 'background',
'fg': 'foreground',
'invcmd': 'invalidcommand',
'vcmd': 'validatecommand',
}
keys = set(keys)
expected = set(self.OPTIONS)
for k in sorted(keys - expected):
if not (k in aliases and
aliases[k] in keys and
aliases[k] in expected):
print('%s.OPTIONS doesn\'t contain "%s"' %
(self.__class__.__name__, k))
class StandardOptionsTests:
STANDARD_OPTIONS = (
'activebackground', 'activeborderwidth', 'activeforeground', 'anchor',
'background', 'bitmap', 'borderwidth', 'compound', 'cursor',
'disabledforeground', 'exportselection', 'font', 'foreground',
'highlightbackground', 'highlightcolor', 'highlightthickness',
'image', 'insertbackground', 'insertborderwidth',
'insertofftime', 'insertontime', 'insertwidth',
'jump', 'justify', 'orient', 'padx', 'pady', 'relief',
'repeatdelay', 'repeatinterval',
'selectbackground', 'selectborderwidth', 'selectforeground',
'setgrid', 'takefocus', 'text', 'textvariable', 'troughcolor',
'underline', 'wraplength', 'xscrollcommand', 'yscrollcommand',
)
def test_configure_activebackground(self):
widget = self.create()
self.checkColorParam(widget, 'activebackground')
def test_configure_activeborderwidth(self):
widget = self.create()
self.checkPixelsParam(widget, 'activeborderwidth',
0, 1.3, 2.9, 6, -2, '10p')
def test_configure_activeforeground(self):
widget = self.create()
self.checkColorParam(widget, 'activeforeground')
def test_configure_anchor(self):
widget = self.create()
self.checkEnumParam(widget, 'anchor',
'n', 'ne', 'e', 'se', 's', 'sw', 'w', 'nw', 'center')
def test_configure_background(self):
widget = self.create()
self.checkColorParam(widget, 'background')
if 'bg' in self.OPTIONS:
self.checkColorParam(widget, 'bg')
def test_configure_bitmap(self):
widget = self.create()
self.checkParam(widget, 'bitmap', 'questhead')
self.checkParam(widget, 'bitmap', 'gray50')
filename = test.support.findfile('python.xbm', subdir='imghdrdata')
self.checkParam(widget, 'bitmap', '@' + filename)
# Cocoa Tk widgets don't detect invalid -bitmap values
# See https://core.tcl.tk/tk/info/31cd33dbf0
if not ('aqua' in self.root.tk.call('tk', 'windowingsystem') and
'AppKit' in self.root.winfo_server()):
self.checkInvalidParam(widget, 'bitmap', 'spam',
errmsg='bitmap "spam" not defined')
def test_configure_borderwidth(self):
widget = self.create()
self.checkPixelsParam(widget, 'borderwidth',
0, 1.3, 2.6, 6, -2, '10p')
if 'bd' in self.OPTIONS:
self.checkPixelsParam(widget, 'bd', 0, 1.3, 2.6, 6, -2, '10p')
def test_configure_compound(self):
widget = self.create()
self.checkEnumParam(widget, 'compound',
'bottom', 'center', 'left', 'none', 'right', 'top')
def test_configure_cursor(self):
widget = self.create()
self.checkCursorParam(widget, 'cursor')
def test_configure_disabledforeground(self):
widget = self.create()
self.checkColorParam(widget, 'disabledforeground')
def test_configure_exportselection(self):
widget = self.create()
self.checkBooleanParam(widget, 'exportselection')
def test_configure_font(self):
widget = self.create()
self.checkParam(widget, 'font',
'-Adobe-Helvetica-Medium-R-Normal--*-120-*-*-*-*-*-*')
self.checkInvalidParam(widget, 'font', '',
errmsg='font "" doesn\'t exist')
def test_configure_foreground(self):
widget = self.create()
self.checkColorParam(widget, 'foreground')
if 'fg' in self.OPTIONS:
self.checkColorParam(widget, 'fg')
def test_configure_highlightbackground(self):
widget = self.create()
self.checkColorParam(widget, 'highlightbackground')
def test_configure_highlightcolor(self):
widget = self.create()
self.checkColorParam(widget, 'highlightcolor')
def test_configure_highlightthickness(self):
widget = self.create()
self.checkPixelsParam(widget, 'highlightthickness',
0, 1.3, 2.6, 6, '10p')
self.checkParam(widget, 'highlightthickness', -2, expected=0,
conv=self._conv_pixels)
def test_configure_image(self):
widget = self.create()
self.checkImageParam(widget, 'image')
def test_configure_insertbackground(self):
widget = self.create()
self.checkColorParam(widget, 'insertbackground')
def test_configure_insertborderwidth(self):
widget = self.create()
self.checkPixelsParam(widget, 'insertborderwidth',
0, 1.3, 2.6, 6, -2, '10p')
def test_configure_insertofftime(self):
widget = self.create()
self.checkIntegerParam(widget, 'insertofftime', 100)
def test_configure_insertontime(self):
widget = self.create()
self.checkIntegerParam(widget, 'insertontime', 100)
def test_configure_insertwidth(self):
widget = self.create()
self.checkPixelsParam(widget, 'insertwidth', 1.3, 2.6, -2, '10p')
def test_configure_jump(self):
widget = self.create()
self.checkBooleanParam(widget, 'jump')
def test_configure_justify(self):
widget = self.create()
self.checkEnumParam(widget, 'justify', 'left', 'right', 'center',
errmsg='bad justification "{}": must be '
'left, right, or center')
self.checkInvalidParam(widget, 'justify', '',
errmsg='ambiguous justification "": must be '
'left, right, or center')
def test_configure_orient(self):
widget = self.create()
self.assertEqual(str(widget['orient']), self.default_orient)
self.checkEnumParam(widget, 'orient', 'horizontal', 'vertical')
def test_configure_padx(self):
widget = self.create()
self.checkPixelsParam(widget, 'padx', 3, 4.4, 5.6, -2, '12m',
conv=self._conv_pad_pixels)
def test_configure_pady(self):
widget = self.create()
self.checkPixelsParam(widget, 'pady', 3, 4.4, 5.6, -2, '12m',
conv=self._conv_pad_pixels)
def test_configure_relief(self):
widget = self.create()
self.checkReliefParam(widget, 'relief')
def test_configure_repeatdelay(self):
widget = self.create()
self.checkIntegerParam(widget, 'repeatdelay', -500, 500)
def test_configure_repeatinterval(self):
widget = self.create()
self.checkIntegerParam(widget, 'repeatinterval', -500, 500)
def test_configure_selectbackground(self):
widget = self.create()
self.checkColorParam(widget, 'selectbackground')
def test_configure_selectborderwidth(self):
widget = self.create()
self.checkPixelsParam(widget, 'selectborderwidth', 1.3, 2.6, -2, '10p')
def test_configure_selectforeground(self):
widget = self.create()
self.checkColorParam(widget, 'selectforeground')
def test_configure_setgrid(self):
widget = self.create()
self.checkBooleanParam(widget, 'setgrid')
def test_configure_state(self):
widget = self.create()
self.checkEnumParam(widget, 'state', 'active', 'disabled', 'normal')
def test_configure_takefocus(self):
widget = self.create()
self.checkParams(widget, 'takefocus', '0', '1', '')
def test_configure_text(self):
widget = self.create()
self.checkParams(widget, 'text', '', 'any string')
def test_configure_textvariable(self):
widget = self.create()
var = tkinter.StringVar(self.root)
self.checkVariableParam(widget, 'textvariable', var)
def test_configure_troughcolor(self):
widget = self.create()
self.checkColorParam(widget, 'troughcolor')
def test_configure_underline(self):
widget = self.create()
self.checkIntegerParam(widget, 'underline', 0, 1, 10)
def test_configure_wraplength(self):
widget = self.create()
self.checkPixelsParam(widget, 'wraplength', 100)
def test_configure_xscrollcommand(self):
widget = self.create()
self.checkCommandParam(widget, 'xscrollcommand')
def test_configure_yscrollcommand(self):
widget = self.create()
self.checkCommandParam(widget, 'yscrollcommand')
# non-standard but common options
def test_configure_command(self):
widget = self.create()
self.checkCommandParam(widget, 'command')
def test_configure_indicatoron(self):
widget = self.create()
self.checkBooleanParam(widget, 'indicatoron')
def test_configure_offrelief(self):
widget = self.create()
self.checkReliefParam(widget, 'offrelief')
def test_configure_overrelief(self):
widget = self.create()
self.checkReliefParam(widget, 'overrelief')
def test_configure_selectcolor(self):
widget = self.create()
self.checkColorParam(widget, 'selectcolor')
def test_configure_selectimage(self):
widget = self.create()
self.checkImageParam(widget, 'selectimage')
@requires_tcl(8, 5)
def test_configure_tristateimage(self):
widget = self.create()
self.checkImageParam(widget, 'tristateimage')
@requires_tcl(8, 5)
def test_configure_tristatevalue(self):
widget = self.create()
self.checkParam(widget, 'tristatevalue', 'unknowable')
def test_configure_variable(self):
widget = self.create()
var = tkinter.DoubleVar(self.root)
self.checkVariableParam(widget, 'variable', var)
class IntegerSizeTests:
def test_configure_height(self):
widget = self.create()
self.checkIntegerParam(widget, 'height', 100, -100, 0)
def test_configure_width(self):
widget = self.create()
self.checkIntegerParam(widget, 'width', 402, -402, 0)
class PixelSizeTests:
def test_configure_height(self):
widget = self.create()
self.checkPixelsParam(widget, 'height', 100, 101.2, 102.6, -100, 0, '3c')
def test_configure_width(self):
widget = self.create()
self.checkPixelsParam(widget, 'width', 402, 403.4, 404.6, -402, 0, '5i')
def add_standard_options(*source_classes):
# This decorator adds test_configure_xxx methods from source classes for
# every xxx option in the OPTIONS class attribute if they are not defined
# explicitly.
def decorator(cls):
for option in cls.OPTIONS:
methodname = 'test_configure_' + option
if not hasattr(cls, methodname):
for source_class in source_classes:
if hasattr(source_class, methodname):
setattr(cls, methodname,
getattr(source_class, methodname))
break
else:
def test(self, option=option):
widget = self.create()
widget[option]
raise AssertionError('Option "%s" is not tested in %s' %
(option, cls.__name__))
test.__name__ = methodname
setattr(cls, methodname, test)
return cls
return decorator
def setUpModule():
if test.support.verbose:
tcl = tkinter.Tcl()
print('patchlevel =', tcl.call('info', 'patchlevel'))