106 lines
3.6 KiB
Python
106 lines
3.6 KiB
Python
from fontTools.misc.testTools import parseXML
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from fontTools.misc.textTools import deHexStr
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from fontTools.misc.xmlWriter import XMLWriter
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from fontTools.ttLib import TTLibError
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from fontTools.ttLib.tables._a_v_a_r import table__a_v_a_r
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from fontTools.ttLib.tables._f_v_a_r import table__f_v_a_r, Axis
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from io import BytesIO
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import unittest
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TEST_DATA = deHexStr(
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"00 01 00 00 00 00 00 02 "
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"00 04 C0 00 C0 00 00 00 00 00 13 33 33 33 40 00 40 00 "
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"00 03 C0 00 C0 00 00 00 00 00 40 00 40 00"
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)
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class AxisVariationTableTest(unittest.TestCase):
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def assertAvarAlmostEqual(self, segments1, segments2):
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self.assertSetEqual(set(segments1.keys()), set(segments2.keys()))
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for axisTag, mapping1 in segments1.items():
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mapping2 = segments2[axisTag]
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self.assertEqual(len(mapping1), len(mapping2))
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for (k1, v1), (k2, v2) in zip(
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sorted(mapping1.items()), sorted(mapping2.items())
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):
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self.assertAlmostEqual(k1, k2)
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self.assertAlmostEqual(v1, v2)
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def test_compile(self):
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avar = table__a_v_a_r()
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avar.segments["wdth"] = {-1.0: -1.0, 0.0: 0.0, 0.3: 0.8, 1.0: 1.0}
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avar.segments["wght"] = {-1.0: -1.0, 0.0: 0.0, 1.0: 1.0}
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self.assertEqual(TEST_DATA, avar.compile(self.makeFont(["wdth", "wght"])))
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def test_decompile(self):
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avar = table__a_v_a_r()
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avar.decompile(TEST_DATA, self.makeFont(["wdth", "wght"]))
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self.assertAvarAlmostEqual(
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{
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"wdth": {-1.0: -1.0, 0.0: 0.0, 0.2999878: 0.7999878, 1.0: 1.0},
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"wght": {-1.0: -1.0, 0.0: 0.0, 1.0: 1.0},
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},
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avar.segments,
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)
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def test_decompile_unsupportedVersion(self):
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avar = table__a_v_a_r()
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font = self.makeFont(["wdth", "wght"])
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self.assertRaises(
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TTLibError, avar.decompile, deHexStr("02 01 03 06 00 00 00 00"), font
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)
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def test_toXML(self):
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avar = table__a_v_a_r()
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avar.segments["opsz"] = {-1.0: -1.0, 0.0: 0.0, 0.2999878: 0.7999878, 1.0: 1.0}
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writer = XMLWriter(BytesIO())
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avar.toXML(writer, self.makeFont(["opsz"]))
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self.assertEqual(
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[
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'<segment axis="opsz">',
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'<mapping from="-1.0" to="-1.0"/>',
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'<mapping from="0.0" to="0.0"/>',
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'<mapping from="0.3" to="0.8"/>',
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'<mapping from="1.0" to="1.0"/>',
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"</segment>",
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],
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self.xml_lines(writer),
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)
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def test_fromXML(self):
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avar = table__a_v_a_r()
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for name, attrs, content in parseXML(
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'<segment axis="wdth">'
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' <mapping from="-1.0" to="-1.0"/>'
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' <mapping from="0.0" to="0.0"/>'
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' <mapping from="0.7" to="0.2"/>'
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' <mapping from="1.0" to="1.0"/>'
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"</segment>"
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):
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avar.fromXML(name, attrs, content, ttFont=None)
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self.assertAvarAlmostEqual(
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{"wdth": {-1: -1, 0: 0, 0.7000122: 0.2000122, 1.0: 1.0}}, avar.segments
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)
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@staticmethod
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def makeFont(axisTags):
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"""['opsz', 'wdth'] --> ttFont"""
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fvar = table__f_v_a_r()
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for tag in axisTags:
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axis = Axis()
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axis.axisTag = tag
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fvar.axes.append(axis)
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return {"fvar": fvar}
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@staticmethod
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def xml_lines(writer):
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content = writer.file.getvalue().decode("utf-8")
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return [line.strip() for line in content.splitlines()][1:]
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if __name__ == "__main__":
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import sys
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sys.exit(unittest.main())
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