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# (C) Copyright 2005-2023 Enthought, Inc., Austin, TX
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in LICENSE.txt and may be redistributed only under
# the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
#
# Thanks for using Enthought open source!
import unittest
from traits.api import HasStrictTraits, TraitError
from pyface.font import Font, FontSize, FontStretch, SIZES, STRETCHES
from pyface.toolkit import toolkit_object
class FontSizeDummy(HasStrictTraits):
size = FontSize()
size_default_1 = FontSize(14.0)
size_default_2 = FontSize("14.0")
size_default_3 = FontSize("14.0pt")
size_default_4 = FontSize("large")
class TestFontSizeTrait(unittest.TestCase):
def test_font_size_trait_defaults(self):
dummy = FontSizeDummy()
self.assertEqual(dummy.size, 12.0)
self.assertEqual(dummy.size_default_1, 14.0)
self.assertEqual(dummy.size_default_2, 14.0)
self.assertEqual(dummy.size_default_3, 14.0)
self.assertEqual(dummy.size_default_4, 14.0)
def test_font_sizes(self):
dummy = FontSizeDummy()
for size, value in SIZES.items():
with self.subTest(size=size):
dummy.size = size
self.assertEqual(dummy.size, value)
def test_font_size_trait_invalid_default(self):
for size in ["badvalue", -1.0, "-1.0", "0pt"]:
with self.subTest(size=size):
with self.assertRaises(TraitError):
FontSize(size)
def test_font_size_trait_validate(self):
dummy = FontSizeDummy()
for size, expected in [
(14.0, 14.0),
("15.0", 15.0),
("16pt", 16.0),
("17.0px", 17.0),
]:
with self.subTest(size=size):
dummy.size = size
self.assertEqual(dummy.size, expected)
def test_font_size_trait_invalid_validate(self):
dummy = FontSizeDummy()
for size in ["badvalue", -1.0, "-1.0", "0pt"]:
with self.subTest(size=size):
with self.assertRaises(TraitError):
dummy.size = size
class FontStretchDummy(HasStrictTraits):
stretch = FontStretch()
stretch_default_1 = FontStretch(150)
stretch_default_2 = FontStretch("150.0")
stretch_default_3 = FontStretch("150.0%")
stretch_default_4 = FontStretch("expanded")
class TestFontStretchTrait(unittest.TestCase):
def test_font_stretch_trait_defaults(self):
dummy = FontStretchDummy()
self.assertEqual(dummy.stretch, 100.0)
self.assertEqual(dummy.stretch_default_1, 150.0)
self.assertEqual(dummy.stretch_default_2, 150.0)
self.assertEqual(dummy.stretch_default_3, 150.0)
self.assertEqual(dummy.stretch_default_4, 125.0)
def test_font_stretches(self):
dummy = FontStretchDummy()
for stretch, value in STRETCHES.items():
with self.subTest(stretch=stretch):
dummy.stretch = stretch
self.assertEqual(dummy.stretch, value)
def test_font_stretch_trait_invalid_default(self):
for stretch in ["badvalue", 49.5, "49.5", "49.5%", 200.1]:
with self.subTest(stretch=stretch):
with self.assertRaises(TraitError):
FontStretch(stretch)
def test_font_stretch_trait_validate(self):
dummy = FontStretchDummy()
for stretch, expected in [
(150.0, 150.0),
("125", 125.0),
("50%", 50.0),
("ultra-expanded", 200.0)
]:
with self.subTest(stretch=stretch):
dummy.stretch = stretch
self.assertEqual(dummy.stretch, expected)
def test_font_stretch_trait_invalid_validate(self):
dummy = FontStretchDummy()
for stretch in ["badvalue", 49.5, "200.1", "49.9%"]:
with self.subTest(stretch=stretch):
with self.assertRaises(TraitError):
dummy.stretch = stretch
class TestFont(unittest.TestCase):
def test_default(self):
font = Font()
self.assertEqual(font.family, ['default'])
self.assertEqual(font.size, 12.0)
self.assertEqual(font.weight, 'normal')
self.assertEqual(font.stretch, 100)
self.assertEqual(font.style, 'normal')
self.assertEqual(font.variants, set())
def test_typical(self):
font = Font(
family=['Helvetica', 'sans-serif'],
size='large',
weight='demi-bold',
stretch='condensed',
style='italic',
variants={'small-caps'},
decorations={'underline'},
)
self.assertEqual(font.family, ['Helvetica', 'sans-serif'])
self.assertEqual(font.size, 14.0)
self.assertEqual(font.weight, 'demi-bold')
self.assertEqual(font.weight_, 600)
self.assertEqual(font.stretch, 75)
self.assertEqual(font.style, 'italic')
self.assertEqual(font.variants, {'small-caps'})
self.assertEqual(font.decorations, {'underline'})
def test_family_sequence(self):
font = Font(family=('Helvetica', 'sans-serif'))
self.assertEqual(font.family, ['Helvetica', 'sans-serif'])
def test_variants_frozenset(self):
font = Font(variants=frozenset({'small-caps'}))
self.assertEqual(font.variants, {'small-caps'})
def test_decorations_frozenset(self):
font = Font(decorations=frozenset({'underline'}))
self.assertEqual(font.decorations, {'underline'})
def test_str(self):
font = Font()
description = str(font)
self.assertEqual(description, "12pt default")
def test_str_typical(self):
font = Font(
family=['Comic Sans', 'decorative'],
size='large',
weight='demi-bold',
stretch='condensed',
style='italic',
variants={'small-caps'},
decorations={'underline'},
)
description = str(font)
self.assertEqual(
description,
"italic small-caps underline demi-bold 75% 14pt "
"'Comic Sans', decorative"
)
def test_repr(self):
font = Font()
text = repr(font)
# this is little more than a smoke check, but good enough
self.assertTrue(text.startswith('Font('))
def test_repr_typical(self):
font = Font(
family=['Helvetica', 'sans-serif'],
size='large',
weight='demi-bold',
stretch='condensed',
style='italic',
variants={'small-caps'},
decorations={'underline'},
)
text = repr(font)
# this is little more than a smoke check, but good enough
self.assertTrue(text.startswith('Font('))
def test_to_toolkit(self):
font = Font()
# smoke test
toolkit_font = font.to_toolkit()
self.assertIsNotNone(toolkit_font)
def test_to_toolkit_typical(self):
font = Font(
family=['Helvetica', 'sans-serif'],
size='large',
weight='demi-bold',
stretch='condensed',
style='italic',
variants={'small-caps'},
decorations={'underline', 'strikethrough', 'overline'},
)
# smoke test
toolkit_font = font.to_toolkit()
self.assertIsNotNone(toolkit_font)
def test_toolkit_default_roundtrip(self):
font = Font()
# smoke test
result = Font.from_toolkit(font.to_toolkit())
# defaults should round-trip
self.assertTrue(result.family[-1], 'default')
self.assertEqual(result.size, font.size)
self.assertEqual(result.weight, font.weight)
self.assertEqual(result.stretch, font.stretch)
self.assertEqual(result.variants, font.variants)
self.assertEqual(result.decorations, font.decorations)
def test_from_toolkit_typical(self):
font = Font(
family=['Helvetica', 'sans-serif'],
size='large',
weight='bold',
stretch='condensed',
style='italic',
variants={'small-caps'},
decorations={'underline', 'strikethrough', 'overline'},
)
# smoke test
result = Font.from_toolkit(font.to_toolkit())
# we expect some things should round-trip no matter what system
self.assertEqual(result.size, font.size)
self.assertEqual(result.weight, font.weight)
self.assertEqual(result.style, font.style)
def test_toolkit_font_to_properties(self):
toolkit_font_to_properties = toolkit_object(
'font:toolkit_font_to_properties')
font = Font(
family=['Helvetica', 'sans-serif'],
size='large',
weight='demi-bold',
stretch='condensed',
style='italic',
variants={'small-caps'},
decorations={'underline', 'strikethrough', 'overline'},
)
properties = toolkit_font_to_properties(font.to_toolkit())
self.assertEqual(
set(properties.keys()),
{
'family', 'size', 'stretch', 'weight', 'style', 'variants',
'decorations'
}
)
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