mirror of
https://github.com/kovidgoyal/kitty.git
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331 lines
16 KiB
Python
331 lines
16 KiB
Python
#!/usr/bin/env python
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# License: GPL v3 Copyright: 2017, Kovid Goyal <kovid at kovidgoyal.net>
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import os
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import sys
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import tempfile
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import unittest
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from functools import partial
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from kitty.constants import is_macos, read_kitty_resource
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from kitty.fast_data_types import (
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DECAWM,
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ParsedFontFeature,
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get_fallback_font,
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sprite_map_set_layout,
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sprite_map_set_limits,
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test_render_line,
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test_sprite_position_for,
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wcwidth,
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)
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from kitty.fonts import family_name_to_key
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from kitty.fonts.box_drawing import box_chars
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from kitty.fonts.common import FontSpec, all_fonts_map, face_from_descriptor, get_font_files, get_named_style, spec_for_face
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from kitty.fonts.render import coalesce_symbol_maps, render_string, setup_for_testing, shape_string
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from kitty.options.types import Options
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from . import BaseTest
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def parse_font_spec(spec):
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return FontSpec.from_setting(spec)
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class Selection(BaseTest):
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def test_font_selection(self):
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self.set_options({'font_features': {'LiberationMono': (ParsedFontFeature('-dlig'),)}})
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opts = Options()
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fonts_map = all_fonts_map(True)
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names = set(fonts_map['family_map']) | set(fonts_map['variable_map'])
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del fonts_map
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def s(family: str, *expected: str, alternate=None) -> None:
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opts.font_family = parse_font_spec(family)
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ff = get_font_files(opts)
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actual = tuple(face_from_descriptor(ff[x]).postscript_name() for x in ('medium', 'bold', 'italic', 'bi')) # type: ignore
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del ff
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for x in actual:
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if '/' in x: # Old FreeType failed to generate postscript name for a variable font probably
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return
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with self.subTest(spec=family):
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try:
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self.ae(expected, actual)
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except AssertionError:
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if alternate:
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self.ae(alternate, actual)
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else:
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raise
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def both(family: str, *expected: str, alternate=None) -> None:
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for family in (family, f'family="{family}"'):
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s(family, *expected, alternate=alternate)
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def has(family, allow_missing_in_ci=False):
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ans = family_name_to_key(family) in names
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if self.is_ci and not allow_missing_in_ci and not ans:
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raise AssertionError(f'The family: {family} is not available')
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return ans
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def t(family, psprefix, bold='Bold', italic='Italic', bi='', reg='Regular', allow_missing_in_ci=False, alternate=None):
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if has(family, allow_missing_in_ci=allow_missing_in_ci):
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bi = bi or bold + italic
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if reg:
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reg = '-' + reg
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both(family, f'{psprefix}{reg}', f'{psprefix}-{bold}', f'{psprefix}-{italic}', f'{psprefix}-{bi}', alternate=alternate)
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t('Source Code Pro', 'SourceCodePro', 'Semibold', 'It')
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t('sourcecodeVf', 'SourceCodeVF', 'Semibold')
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# The Arch ttf-fira-code package excludes the variable fonts for some reason
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t('fira code', 'FiraCodeRoman', 'SemiBold', 'Regular', 'SemiBold', alternate=(
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'FiraCode-Regular', 'FiraCode-SemiBold', 'FiraCode-Retina', 'FiraCode-SemiBold'))
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t('hack', 'Hack')
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# some ubuntu systems (such as the build VM) have only the regular and
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# bold faces of DejaVu Sans Mono installed.
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# t('DejaVu Sans Mono', 'DejaVuSansMono', reg='', italic='Oblique')
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t('ubuntu mono', 'UbuntuMono')
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t('liberation mono', 'LiberationMono', reg='')
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t('ibm plex mono', 'IBMPlexMono', 'SmBld', reg='')
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t('iosevka fixed', 'Iosevka-Fixed', 'Semibold', reg='', bi='Semibold-Italic', allow_missing_in_ci=True)
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t('iosevka term', 'Iosevka-Term', 'Semibold', reg='', bi='Semibold-Italic', allow_missing_in_ci=True)
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t('fantasque sans mono', 'FantasqueSansMono')
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t('jetbrains mono', 'JetBrainsMono', 'SemiBold')
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t('consolas', 'Consolas', reg='', allow_missing_in_ci=True)
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if has('cascadia code'):
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if is_macos:
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both('cascadia code', 'CascadiaCode-Regular', 'CascadiaCode-Regular_SemiBold', 'CascadiaCode-Italic', 'CascadiaCode-Italic_SemiBold-Italic')
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else:
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both('cascadia code', 'CascadiaCodeRoman-Regular', 'CascadiaCodeRoman-SemiBold', 'CascadiaCode-Italic', 'CascadiaCode-SemiBoldItalic')
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if has('cascadia mono'):
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if is_macos:
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both('cascadia mono', 'CascadiaMono-Regular', 'CascadiaMono-Regular_SemiBold', 'CascadiaMono-Italic', 'CascadiaMono-Italic_SemiBold-Italic')
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else:
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both('cascadia mono', 'CascadiaMonoRoman-Regular', 'CascadiaMonoRoman-SemiBold', 'CascadiaMono-Italic', 'CascadiaMono-SemiBoldItalic')
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if has('operator mono', allow_missing_in_ci=True):
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both('operator mono', 'OperatorMono-Medium', 'OperatorMono-Bold', 'OperatorMono-MediumItalic', 'OperatorMono-BoldItalic')
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# Test variable font selection
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if has('SourceCodeVF'):
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opts = Options()
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opts.font_family = parse_font_spec('family="SourceCodeVF" variable_name="SourceCodeUpright" style="Bold"')
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ff = get_font_files(opts)
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face = face_from_descriptor(ff['medium'])
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self.ae(get_named_style(face)['name'], 'Bold')
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face = face_from_descriptor(ff['italic'])
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self.ae(get_named_style(face)['name'], 'Bold Italic')
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face = face_from_descriptor(ff['bold'])
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self.ae(get_named_style(face)['name'], 'Black')
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face = face_from_descriptor(ff['bi'])
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self.ae(get_named_style(face)['name'], 'Black Italic')
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opts.font_family = parse_font_spec('family=SourceCodeVF variable_name=SourceCodeUpright wght=470')
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opts.italic_font = parse_font_spec('family=SourceCodeVF variable_name=SourceCodeItalic style=Black')
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ff = get_font_files(opts)
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self.assertFalse(get_named_style(ff['medium']))
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self.ae(get_named_style(ff['italic'])['name'], 'Black Italic')
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if has('cascadia code'):
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opts = Options()
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opts.font_family = parse_font_spec('family="cascadia code"')
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opts.italic_font = parse_font_spec('family="cascadia code" variable_name= style="Light Italic"')
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ff = get_font_files(opts)
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def t(x, **kw):
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if 'spec' in kw:
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fs = FontSpec.from_setting('family="Cascadia Code" ' + kw['spec'])._replace(created_from_string='')
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else:
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kw['family'] = 'Cascadia Code'
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fs = FontSpec(**kw)
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face = face_from_descriptor(ff[x])
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self.ae(fs.as_setting, spec_for_face('Cascadia Code', face).as_setting)
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t('medium', variable_name='CascadiaCodeRoman', style='Regular')
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t('italic', variable_name='', style='Light Italic')
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opts = Options()
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opts.font_family = parse_font_spec('family="cascadia code" variable_name=CascadiaCodeRoman wght=455')
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opts.italic_font = parse_font_spec('family="cascadia code" variable_name= wght=405')
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opts.bold_font = parse_font_spec('family="cascadia code" variable_name=CascadiaCodeRoman wght=603')
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ff = get_font_files(opts)
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t('medium', spec='variable_name=CascadiaCodeRoman wght=455')
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t('italic', spec='variable_name= wght=405')
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t('bold', spec='variable_name=CascadiaCodeRoman wght=603')
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t('bi', spec='variable_name= wght=603')
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# Test font features
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if has('liberation mono'):
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opts = Options()
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opts.font_family = parse_font_spec('family="liberation mono"')
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ff = get_font_files(opts)
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self.ae(face_from_descriptor(ff['medium']).applied_features(), {'dlig': '-dlig'})
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self.ae(face_from_descriptor(ff['bold']).applied_features(), {})
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opts.font_family = parse_font_spec('family="liberation mono" features="dlig test=3"')
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ff = get_font_files(opts)
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self.ae(face_from_descriptor(ff['medium']).applied_features(), {'dlig': 'dlig', 'test': 'test=3'})
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self.ae(face_from_descriptor(ff['bold']).applied_features(), {'dlig': 'dlig', 'test': 'test=3'})
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class Rendering(BaseTest):
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def setUp(self):
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super().setUp()
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self.test_ctx = setup_for_testing()
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self.test_ctx.__enter__()
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self.sprites, self.cell_width, self.cell_height = self.test_ctx.__enter__()
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try:
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self.assertEqual([k[0] for k in self.sprites], [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10])
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except Exception:
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self.test_ctx.__exit__()
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del self.test_ctx
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raise
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self.tdir = tempfile.mkdtemp()
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def tearDown(self):
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self.test_ctx.__exit__()
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del self.sprites, self.cell_width, self.cell_height, self.test_ctx
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self.rmtree_ignoring_errors(self.tdir)
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super().tearDown()
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def test_sprite_map(self):
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sprite_map_set_limits(10, 2)
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sprite_map_set_layout(5, 5)
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self.ae(test_sprite_position_for(0), (0, 0, 0))
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self.ae(test_sprite_position_for(1), (1, 0, 0))
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self.ae(test_sprite_position_for(2), (0, 1, 0))
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self.ae(test_sprite_position_for(3), (1, 1, 0))
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self.ae(test_sprite_position_for(4), (0, 0, 1))
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self.ae(test_sprite_position_for(5), (1, 0, 1))
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self.ae(test_sprite_position_for(6), (0, 1, 1))
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self.ae(test_sprite_position_for(7), (1, 1, 1))
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self.ae(test_sprite_position_for(0, 1), (0, 0, 2))
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self.ae(test_sprite_position_for(0, 2), (1, 0, 2))
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def test_box_drawing(self):
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prerendered = len(self.sprites)
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s = self.create_screen(cols=len(box_chars) + 1, lines=1, scrollback=0)
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s.draw(''.join(box_chars))
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line = s.line(0)
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test_render_line(line)
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self.assertEqual(len(self.sprites) - prerendered, len(box_chars))
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def test_font_rendering(self):
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render_string('ab\u0347\u0305你好|\U0001F601|\U0001F64f|\U0001F63a|')
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text = 'He\u0347\u0305llo\u0341, w\u0302or\u0306l\u0354d!'
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# macOS has no fonts capable of rendering combining chars
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if is_macos:
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text = text.encode('ascii', 'ignore').decode('ascii')
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cells = render_string(text)[-1]
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self.ae(len(cells), len(text.encode('ascii', 'ignore')))
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text = '你好,世界'
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sz = sum(map(lambda x: wcwidth(ord(x)), text))
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cells = render_string(text)[-1]
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self.ae(len(cells), sz)
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def test_shaping(self):
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font_path_cache = {}
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def path_for_font(name):
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if name not in font_path_cache:
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with open(os.path.join(self.tdir, name), 'wb') as f:
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font_path_cache[name] = f.name
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data = read_kitty_resource(name, __name__.rpartition('.')[0])
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f.write(data)
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return font_path_cache[name]
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def ss(text, font=None):
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path = path_for_font(font) if font else None
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return shape_string(text, path=path)
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def groups(text, font=None):
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return [x[:2] for x in ss(text, font)]
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for font in ('FiraCode-Medium.otf', 'CascadiaCode-Regular.otf', 'iosevka-regular.ttf'):
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g = partial(groups, font=font)
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self.ae(g('abcd'), [(1, 1) for i in range(4)])
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self.ae(g('A===B!=C'), [(1, 1), (3, 3), (1, 1), (2, 2), (1, 1)])
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self.ae(g('A=>>B!=C'), [(1, 1), (3, 3), (1, 1), (2, 2), (1, 1)])
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if 'iosevka' in font:
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self.ae(g('--->'), [(4, 4)])
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self.ae(g('-' * 12 + '>'), [(13, 13)])
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self.ae(g('<~~~'), [(4, 4)])
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self.ae(g('a<~~~b'), [(1, 1), (4, 4), (1, 1)])
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else:
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self.ae(g('----'), [(4, 4)])
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self.ae(g('F--a--'), [(1, 1), (2, 2), (1, 1), (2, 2)])
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self.ae(g('===--<>=='), [(3, 3), (2, 2), (2, 2), (2, 2)])
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self.ae(g('==!=<>==<><><>'), [(4, 4), (2, 2), (2, 2), (2, 2), (2, 2), (2, 2)])
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self.ae(g('-' * 18), [(18, 18)])
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self.ae(g('a>\u2060<b'), [(1, 1), (1, 2), (1, 1), (1, 1)])
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colon_glyph = ss('9:30', font='FiraCode-Medium.otf')[1][2]
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self.assertNotEqual(colon_glyph, ss(':', font='FiraCode-Medium.otf')[0][2])
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self.ae(colon_glyph, 1031)
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self.ae(groups('9:30', font='FiraCode-Medium.otf'), [(1, 1), (1, 1), (1, 1), (1, 1)])
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self.ae(groups('|\U0001F601|\U0001F64f|\U0001F63a|'), [(1, 1), (2, 1), (1, 1), (2, 1), (1, 1), (2, 1), (1, 1)])
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self.ae(groups('He\u0347\u0305llo\u0337,', font='LiberationMono-Regular.ttf'),
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[(1, 1), (1, 3), (1, 1), (1, 1), (1, 2), (1, 1)])
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self.ae(groups('i\u0332\u0308', font='LiberationMono-Regular.ttf'), [(1, 2)])
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self.ae(groups('u\u0332 u\u0332\u0301', font='LiberationMono-Regular.ttf'), [(1, 2), (1, 1), (1, 2)])
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def test_emoji_presentation(self):
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s = self.create_screen()
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s.draw('\u2716\u2716\ufe0f')
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self.ae((s.cursor.x, s.cursor.y), (3, 0))
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s.draw('\u2716\u2716')
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self.ae((s.cursor.x, s.cursor.y), (5, 0))
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s.draw('\ufe0f')
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self.ae((s.cursor.x, s.cursor.y), (2, 1))
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self.ae(str(s.line(0)), '\u2716\u2716\ufe0f\u2716')
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self.ae(str(s.line(1)), '\u2716\ufe0f')
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s.draw('\u2716' * 3)
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self.ae((s.cursor.x, s.cursor.y), (5, 1))
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self.ae(str(s.line(1)), '\u2716\ufe0f\u2716\u2716\u2716')
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self.ae((s.cursor.x, s.cursor.y), (5, 1))
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s.reset_mode(DECAWM)
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s.draw('\ufe0f')
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s.set_mode(DECAWM)
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self.ae((s.cursor.x, s.cursor.y), (5, 1))
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self.ae(str(s.line(1)), '\u2716\ufe0f\u2716\u2716\ufe0f')
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s.cursor.y = s.lines - 1
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s.draw('\u2716' * s.columns)
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self.ae((s.cursor.x, s.cursor.y), (5, 4))
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s.draw('\ufe0f')
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self.ae((s.cursor.x, s.cursor.y), (2, 4))
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self.ae(str(s.line(s.cursor.y)), '\u2716\ufe0f')
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@unittest.skipUnless(is_macos, 'Only macOS has a Last Resort font')
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def test_fallback_font_not_last_resort(self):
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# Ensure that the LastResort font is not reported as a fallback font on
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# macOS. See https://github.com/kovidgoyal/kitty/issues/799
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from io import StringIO
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orig, buf = sys.stderr, StringIO()
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sys.stderr = buf
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try:
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self.assertRaises(ValueError, get_fallback_font, '\U0010FFFF', False, False)
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finally:
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sys.stderr = orig
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self.assertIn('LastResort', buf.getvalue())
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def test_coalesce_symbol_maps(self):
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q = {(2, 3): 'a', (4, 6): 'b', (5, 5): 'b', (7, 7): 'b', (9, 9): 'b', (1, 1): 'a'}
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self.ae(coalesce_symbol_maps(q), {(1, 3): 'a', (4, 7): 'b', (9, 9): 'b'})
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q = {(1, 4): 'a', (2, 3): 'b'}
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self.ae(coalesce_symbol_maps(q), {(1, 1): 'a', (2, 3): 'b', (4, 4): 'a'})
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q = {(2, 3): 'b', (1, 4): 'a'}
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self.ae(coalesce_symbol_maps(q), {(1, 4): 'a'})
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q = {(1, 4): 'a', (2, 5): 'b'}
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self.ae(coalesce_symbol_maps(q), {(1, 1): 'a', (2, 5): 'b'})
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q = {(2, 5): 'b', (1, 4): 'a'}
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self.ae(coalesce_symbol_maps(q), {(1, 4): 'a', (5, 5): 'b'})
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q = {(1, 4): 'a', (2, 5): 'a'}
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self.ae(coalesce_symbol_maps(q), {(1, 5): 'a'})
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q = {(1, 4): 'a', (4, 5): 'b'}
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self.ae(coalesce_symbol_maps(q), {(1, 3): 'a', (4, 5): 'b'})
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q = {(4, 5): 'b', (1, 4): 'a'}
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self.ae(coalesce_symbol_maps(q), {(1, 4): 'a', (5, 5): 'b'})
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q = {(0, 30): 'a', (10, 10): 'b', (11, 11): 'b', (2, 2): 'c', (1, 1): 'c'}
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self.ae(coalesce_symbol_maps(q), {
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(0, 0): 'a', (1, 2): 'c', (3, 9): 'a', (10, 11): 'b', (12, 30): 'a'})
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