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[gvar] Add unit tests for gvar.fromXML() and gvar.toXML()

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This commit is contained in:
Sascha Brawer 2017-01-11 15:35:56 +01:00
parent 963b63b536
commit 3ef8b0dbba
1 changed files with 58 additions and 9 deletions
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67
Lib/fontTools/ttLib/tables/_g_v_a_r_test.py
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@ -1,6 +1,6 @@
from __future__ import print_function, division, absolute_import, unicode_literals
from fontTools.misc.py23 import *
from fontTools.misc.testTools import FakeFont
from fontTools.misc.testTools import FakeFont, getXML, parseXML
from fontTools.misc.textTools import deHexStr, hexStr
from fontTools.ttLib import TTLibError, getTableClass, getTableModule, newTable
import unittest
@ -80,6 +80,44 @@ GVAR_VARIATIONS = {
}
GVAR_XML = [
'<version value="1"/>',
'<reserved value="0"/>',
'<glyphVariations glyph="space">',
' <tuple>',
' <coord axis="wdth" value="0.7"/>',
' <delta pt="0" x="1" y="11"/>',
' <delta pt="1" x="2" y="22"/>',
' <delta pt="2" x="3" y="33"/>',
' <delta pt="3" x="4" y="44"/>',
' </tuple>',
'</glyphVariations>',
'<glyphVariations glyph="I">',
' <tuple>',
' <coord axis="wght" max="1.0" min="0.0" value="0.5"/>',
' <delta pt="0" x="3" y="3"/>',
' <delta pt="1" x="1" y="1"/>',
' <delta pt="2" x="4" y="4"/>',
' <delta pt="3" x="1" y="1"/>',
' <delta pt="4" x="5" y="5"/>',
' <delta pt="5" x="9" y="9"/>',
' <delta pt="6" x="2" y="2"/>',
' <delta pt="7" x="6" y="6"/>',
' </tuple>',
' <tuple>',
' <coord axis="wght" value="-1.0"/>',
' <coord axis="wdth" value="0.8"/>',
' <delta pt="0" x="-8" y="-88"/>',
' <delta pt="1" x="7" y="77"/>',
' <delta pt="4" x="-4" y="44"/>',
' <delta pt="5" x="3" y="33"/>',
' <delta pt="6" x="-2" y="-22"/>',
' <delta pt="7" x="1" y="11"/>',
' </tuple>',
'</glyphVariations>',
]
GVAR_DATA_EMPTY_VARIATIONS = deHexStr(
"0001 0000 " # 0: majorVersion=1 minorVersion=0
"0002 0000 " # 4: axisCount=2 sharedTupleCount=0
@ -96,7 +134,8 @@ def hexencode(s):
class GVARTableTest(unittest.TestCase):
def makeFont(self, glyphs=[".notdef", "space", "I"]):
def makeFont(self, variations):
glyphs=[".notdef", "space", "I"]
Axis = getTableModule("fvar").Axis
Glyph = getTableModule("glyf").Glyph
glyf, fvar, gvar = newTable("glyf"), newTable("fvar"), newTable("gvar")
@ -106,35 +145,45 @@ class GVARTableTest(unittest.TestCase):
glyf.glyphs["I"].coordinates = [(10, 10), (10, 20), (20, 20), (20, 10)]
fvar.axes = [Axis(), Axis()]
fvar.axes[0].axisTag, fvar.axes[1].axisTag = "wght", "wdth"
gvar.variations = variations
return font, gvar
def test_compile(self):
font, gvar = self.makeFont()
gvar.variations = GVAR_VARIATIONS
font, gvar = self.makeFont(GVAR_VARIATIONS)
self.assertEqual(hexStr(gvar.compile(font)), hexStr(GVAR_DATA))
def test_compile_noVariations(self):
font, gvar = self.makeFont()
font, gvar = self.makeFont({})
self.assertEqual(hexStr(gvar.compile(font)),
hexStr(GVAR_DATA_EMPTY_VARIATIONS))
def test_compile_emptyVariations(self):
font, gvar = self.makeFont()
gvar.variations = {".notdef": [], "space": [], "I": []}
font, gvar = self.makeFont({".notdef": [], "space": [], "I": []})
self.assertEqual(hexStr(gvar.compile(font)),
hexStr(GVAR_DATA_EMPTY_VARIATIONS))
def test_decompile(self):
font, gvar = self.makeFont()
font, gvar = self.makeFont({})
gvar.decompile(GVAR_DATA, font)
self.assertEqual(gvar.variations, GVAR_VARIATIONS)
def test_decompile_noVariations(self):
font, gvar = self.makeFont()
font, gvar = self.makeFont({})
gvar.decompile(GVAR_DATA_EMPTY_VARIATIONS, font)
self.assertEqual(gvar.variations,
{".notdef": [], "space": [], "I": []})
def test_fromXML(self):
font, gvar = self.makeFont({})
for name, attrs, content in parseXML(GVAR_XML):
gvar.fromXML(name, attrs, content, ttFont=font)
self.assertEqual(gvar.variations,
{g:v for g,v in GVAR_VARIATIONS.items() if v})
def test_toXML(self):
font, gvar = self.makeFont(GVAR_VARIATIONS)
self.assertEqual(getXML(gvar.toXML, font), GVAR_XML)
def test_compileOffsets_shortFormat(self):
self.assertEqual((deHexStr("00 00 00 02 FF C0"), 0),
gvarClass.compileOffsets_([0, 4, 0x1ff80]))