126a2d9c38
Currently tests the instantiateGvar function only. The test font contains two axes and a single glyph. I shall make add more complexity later.
93 lines
2.7 KiB
Python
93 lines
2.7 KiB
Python
from __future__ import print_function, division, absolute_import
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from fontTools.misc.py23 import *
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from fontTools.ttLib import TTFont
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from fontTools.varLib import partialInstancer as pi
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import os
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import pytest
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TESTDATA = os.path.join(os.path.dirname(__file__), "data")
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@pytest.fixture
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def varfont():
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f = TTFont()
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f.importXML(os.path.join(TESTDATA, "PartialInstancerTest-VF.ttx"))
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return f
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def _get_coordinates(varfont, glyphname):
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# converts GlyphCoordinates to a list of (x, y) tuples, so that pytest's
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# assert will give us a nicer diff
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return list(varfont["glyf"].getCoordinates(glyphname, varfont))
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class InstantiateGvarTest(object):
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@pytest.mark.parametrize("glyph_name", ["hyphen"])
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@pytest.mark.parametrize(
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"location, expected",
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[
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pytest.param(
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{"wdth": -1.0},
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{
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"hyphen": [
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(27, 229),
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(27, 310),
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(247, 310),
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(247, 229),
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(0, 0),
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(274, 0),
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(0, 1000),
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(0, 0),
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]
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},
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id="wdth=-1.0",
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),
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pytest.param(
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{"wdth": -0.5},
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{
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"hyphen": [
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(33.5, 229),
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(33.5, 308.5),
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(264.5, 308.5),
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(264.5, 229),
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(0, 0),
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(298, 0),
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(0, 1000),
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(0, 0),
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]
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},
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id="wdth=-0.5",
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),
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# an axis pinned at the default normalized location (0.0) means
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# the default glyf outline stays the same
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pytest.param(
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{"wdth": 0.0},
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{
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"hyphen": [
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(40, 229),
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(40, 307),
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(282, 307),
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(282, 229),
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(0, 0),
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(322, 0),
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(0, 1000),
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(0, 0),
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]
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},
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id="wdth=0.0",
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),
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],
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)
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def test_pin_and_drop_axis(self, varfont, glyph_name, location, expected):
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pi.instantiateGvar(varfont, location)
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assert _get_coordinates(varfont, glyph_name) == expected[glyph_name]
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# check that the pinned axis has been dropped from gvar
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assert not any(
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"wdth" in t.axes
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for tuples in varfont["gvar"].variations.values()
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for t in tuples
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)
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