Viewing file:  test_font.py (5.83 KB) -rw-r--r--
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import unittest
import tkinter
from tkinter import font
from test.support import requires, gc_collect, ALWAYS_EQ
from tkinter.test.support import AbstractTkTest, AbstractDefaultRootTest
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_unicode_family(self):
family = 'MS \u30b4\u30b7\u30c3\u30af'
try:
f = font.Font(root=self.root, family=family, exists=True)
except tkinter.TclError:
f = font.Font(root=self.root, family=family, exists=False)
self.assertEqual(f.cget('family'), family)
del f
gc_collect()
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_equality(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)
self.assertEqual(font1, ALWAYS_EQ)
root2 = tkinter.Tk()
self.addCleanup(root2.destroy)
font3 = font.Font(root=root2, name=fontname, exists=True)
self.assertEqual(str(font1), str(font3))
self.assertNotEqual(font1, font3)
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)
def test_nametofont(self):
testfont = font.nametofont(fontname, root=self.root)
self.assertIsInstance(testfont, font.Font)
self.assertEqual(testfont.name, fontname)
def test_repr(self):
self.assertEqual(
repr(self.font), f'<tkinter.font.Font object {fontname!r}>'
)
class DefaultRootTest(AbstractDefaultRootTest, unittest.TestCase):
def test_families(self):
self.assertRaises(RuntimeError, font.families)
root = tkinter.Tk()
families = font.families()
self.assertIsInstance(families, tuple)
self.assertTrue(families)
for family in families:
self.assertIsInstance(family, str)
self.assertTrue(family)
root.destroy()
tkinter.NoDefaultRoot()
self.assertRaises(RuntimeError, font.families)
def test_names(self):
self.assertRaises(RuntimeError, font.names)
root = tkinter.Tk()
names = font.names()
self.assertIsInstance(names, tuple)
self.assertTrue(names)
for name in names:
self.assertIsInstance(name, str)
self.assertTrue(name)
self.assertIn(fontname, names)
root.destroy()
tkinter.NoDefaultRoot()
self.assertRaises(RuntimeError, font.names)
def test_nametofont(self):
self.assertRaises(RuntimeError, font.nametofont, fontname)
root = tkinter.Tk()
testfont = font.nametofont(fontname)
self.assertIsInstance(testfont, font.Font)
self.assertEqual(testfont.name, fontname)
root.destroy()
tkinter.NoDefaultRoot()
self.assertRaises(RuntimeError, font.nametofont, fontname)
if __name__ == "__main__":
unittest.main()
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