cpython/Lib/tkinter/test/test_tkinter/test_font.py

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import unittest
import tkinter
from tkinter import font
from test.support import requires, run_unittest
from tkinter.test.support import AbstractTkTest
requires('gui')
fontname = "TkDefaultFont"
class FontTest(AbstractTkTest, unittest.TestCase):
@classmethod
def setUpClass(cls):
AbstractTkTest.setUpClass.__func__(cls)
try:
cls.font = font.Font(root=cls.root, name=fontname, exists=True)
except tkinter.TclError:
cls.font = font.Font(root=cls.root, name=fontname, exists=False)
def test_configure(self):
options = self.font.configure()
self.assertGreaterEqual(set(options),
{'family', 'size', 'weight', 'slant', 'underline', 'overstrike'})
for key in options:
self.assertEqual(self.font.cget(key), options[key])
self.assertEqual(self.font[key], options[key])
for key in 'family', 'weight', 'slant':
self.assertIsInstance(options[key], str)
self.assertIsInstance(self.font.cget(key), str)
self.assertIsInstance(self.font[key], str)
sizetype = int if self.wantobjects else str
for key in 'size', 'underline', 'overstrike':
self.assertIsInstance(options[key], sizetype)
self.assertIsInstance(self.font.cget(key), sizetype)
self.assertIsInstance(self.font[key], sizetype)
def test_actual(self):
options = self.font.actual()
self.assertGreaterEqual(set(options),
{'family', 'size', 'weight', 'slant', 'underline', 'overstrike'})
for key in options:
self.assertEqual(self.font.actual(key), options[key])
for key in 'family', 'weight', 'slant':
self.assertIsInstance(options[key], str)
self.assertIsInstance(self.font.actual(key), str)
sizetype = int if self.wantobjects else str
for key in 'size', 'underline', 'overstrike':
self.assertIsInstance(options[key], sizetype)
self.assertIsInstance(self.font.actual(key), sizetype)
def test_name(self):
self.assertEqual(self.font.name, fontname)
self.assertEqual(str(self.font), fontname)
def test_eq(self):
font1 = font.Font(root=self.root, name=fontname, exists=True)
font2 = font.Font(root=self.root, name=fontname, exists=True)
self.assertIsNot(font1, font2)
self.assertEqual(font1, font2)
self.assertNotEqual(font1, font1.copy())
self.assertNotEqual(font1, 0)
def test_measure(self):
self.assertIsInstance(self.font.measure('abc'), int)
def test_metrics(self):
metrics = self.font.metrics()
self.assertGreaterEqual(set(metrics),
{'ascent', 'descent', 'linespace', 'fixed'})
for key in metrics:
self.assertEqual(self.font.metrics(key), metrics[key])
self.assertIsInstance(metrics[key], int)
self.assertIsInstance(self.font.metrics(key), int)
def test_families(self):
families = font.families(self.root)
self.assertIsInstance(families, tuple)
self.assertTrue(families)
for family in families:
self.assertIsInstance(family, str)
self.assertTrue(family)
def test_names(self):
names = font.names(self.root)
self.assertIsInstance(names, tuple)
self.assertTrue(names)
for name in names:
self.assertIsInstance(name, str)
self.assertTrue(name)
self.assertIn(fontname, names)
tests_gui = (FontTest, )
if __name__ == "__main__":
run_unittest(*tests_gui)