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fonttools/Tests/ttLib/tables/C_O_L_R_test.py
Cosimo Lupo 29a2ebf813 omit default VarIndexBase 
4294967295 (0xFFFFFFFF in decimal form) is not very memorable.
Still, using hex notation for all VarIndexBases would make the non-default values less readable (when interpreted as an index into the DeltaSetIndexMap array, decimal makes more sense).
Since 0xFFFFFFFF means 'no variation data', it makes sense to omit it from the ttx dump and write an empty <VarIndexBase/> element with no value.
We also allow to build Var tables without needing to pass "VarIndexBase": 0xFFFFFFFF in the source dict.
2021-07-23 17:27:57 +01:00

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from fontTools import ttLib
from fontTools.misc.testTools import getXML, parseXML
from fontTools.ttLib.tables.C_O_L_R_ import table_C_O_L_R_
import binascii
import pytest
COLR_V0_SAMPLE = (
(b"\x00\x00", "Version (0)"),
(b"\x00\x01", "BaseGlyphRecordCount (1)"),
(
b"\x00\x00\x00\x0e",
"Offset to BaseGlyphRecordArray from beginning of table (14)",
),
(b"\x00\x00\x00\x14", "Offset to LayerRecordArray from beginning of table (20)"),
(b"\x00\x03", "LayerRecordCount (3)"),
(b"\x00\x06", "BaseGlyphRecord[0].BaseGlyph (6)"),
(b"\x00\x00", "BaseGlyphRecord[0].FirstLayerIndex (0)"),
(b"\x00\x03", "BaseGlyphRecord[0].NumLayers (3)"),
(b"\x00\x07", "LayerRecord[0].LayerGlyph (7)"),
(b"\x00\x00", "LayerRecord[0].PaletteIndex (0)"),
(b"\x00\x08", "LayerRecord[1].LayerGlyph (8)"),
(b"\x00\x01", "LayerRecord[1].PaletteIndex (1)"),
(b"\x00\t", "LayerRecord[2].LayerGlyph (9)"),
(b"\x00\x02", "LayerRecord[3].PaletteIndex (2)"),
)
COLR_V0_DATA = b"".join(t[0] for t in COLR_V0_SAMPLE)
COLR_V0_XML = [
'<version value="0"/>',
'<ColorGlyph name="glyph00006">',
' <layer colorID="0" name="glyph00007"/>',
' <layer colorID="1" name="glyph00008"/>',
' <layer colorID="2" name="glyph00009"/>',
"</ColorGlyph>",
]
def dump(table, ttFont=None):
print("\n".join(getXML(table.toXML, ttFont)))
def diff_binary_fragments(font_bytes, expected_fragments):
pos = 0
prev_desc = ""
errors = 0
for expected_bytes, description in expected_fragments:
actual_bytes = font_bytes[pos : pos + len(expected_bytes)]
if actual_bytes != expected_bytes:
print(
f'{description} (previous "{prev_desc}", actual_bytes: {"".join("%02x" % v for v in actual_bytes)} bytes: {str(font_bytes[pos:pos+16])}'
)
errors += 1
pos += len(expected_bytes)
prev_desc = description
assert errors == 0
assert pos == len(
font_bytes
), f"Leftover font bytes, used {pos} of {len(font_bytes)}"
@pytest.fixture
def font():
font = ttLib.TTFont()
font.setGlyphOrder(["glyph%05d" % i for i in range(30)])
return font
class COLR_V0_Test(object):
def test_decompile_and_compile(self, font):
colr = table_C_O_L_R_()
colr.decompile(COLR_V0_DATA, font)
diff_binary_fragments(colr.compile(font), COLR_V0_SAMPLE)
def test_decompile_and_dump_xml(self, font):
colr = table_C_O_L_R_()
colr.decompile(COLR_V0_DATA, font)
dump(colr, font)
assert getXML(colr.toXML, font) == COLR_V0_XML
def test_load_from_xml_and_compile(self, font):
colr = table_C_O_L_R_()
for name, attrs, content in parseXML(COLR_V0_XML):
colr.fromXML(name, attrs, content, font)
diff_binary_fragments(colr.compile(font), COLR_V0_SAMPLE)
def test_round_trip_xml(self, font):
colr = table_C_O_L_R_()
for name, attrs, content in parseXML(COLR_V0_XML):
colr.fromXML(name, attrs, content, font)
compiled = colr.compile(font)
colr = table_C_O_L_R_()
colr.decompile(compiled, font)
assert getXML(colr.toXML, font) == COLR_V0_XML
COLR_V1_SAMPLE = (
(b"\x00\x01", "Version (1)"),
(b"\x00\x01", "BaseGlyphRecordCount (1)"),
(
b"\x00\x00\x00\x1e",
"Offset to BaseGlyphRecordArray from beginning of table (30)",
),
(b"\x00\x00\x00\x24", "Offset to LayerRecordArray from beginning of table (36)"),
(b"\x00\x03", "LayerRecordCount (3)"),
(b"\x00\x00\x00\x30", "Offset to BaseGlyphList from beginning of table (48)"),
(b"\x00\x00\x00\x9b", "Offset to LayerList from beginning of table (155)"),
(b"\x00\x00\x00\x00", "Offset to DeltaSetIndexMap (NULL)"),
(b"\x00\x00\x00\x00", "Offset to VarStore (NULL)"),
(b"\x00\x06", "BaseGlyphRecord[0].BaseGlyph (6)"),
(b"\x00\x00", "BaseGlyphRecord[0].FirstLayerIndex (0)"),
(b"\x00\x03", "BaseGlyphRecord[0].NumLayers (3)"),
(b"\x00\x07", "LayerRecord[0].LayerGlyph (7)"),
(b"\x00\x00", "LayerRecord[0].PaletteIndex (0)"),
(b"\x00\x08", "LayerRecord[1].LayerGlyph (8)"),
(b"\x00\x01", "LayerRecord[1].PaletteIndex (1)"),
(b"\x00\t", "LayerRecord[2].LayerGlyph (9)"),
(b"\x00\x02", "LayerRecord[2].PaletteIndex (2)"),
# BaseGlyphList
(b"\x00\x00\x00\x03", "BaseGlyphList.BaseGlyphCount (3)"),
(b"\x00\n", "BaseGlyphList.BaseGlyphPaintRecord[0].BaseGlyph (10)"),
(
b"\x00\x00\x00\x16",
"Offset to Paint table from beginning of BaseGlyphList (22)",
),
(b"\x00\x0e", "BaseGlyphList.BaseGlyphPaintRecord[1].BaseGlyph (14)"),
(
b"\x00\x00\x00\x1c",
"Offset to Paint table from beginning of BaseGlyphList (28)",
),
(b"\x00\x0f", "BaseGlyphList.BaseGlyphPaintRecord[2].BaseGlyph (15)"),
(
b"\x00\x00\x00\x4a",
"Offset to Paint table from beginning of BaseGlyphList (74)",
),
# BaseGlyphPaintRecord[0]
(b"\x01", "BaseGlyphPaintRecord[0].Paint.Format (1)"),
(b"\x04", "BaseGlyphPaintRecord[0].Paint.NumLayers (4)"),
(b"\x00\x00\x00\x00", "BaseGlyphPaintRecord[0].Paint.FirstLayerIndex (0)"),
# BaseGlyphPaintRecord[1]
(b"\x20", "BaseGlyphPaintRecord[1].Paint.Format (32)"),
(b"\x00\x00\x0f", "Offset to SourcePaint from beginning of PaintComposite (15)"),
(b"\x03", "BaseGlyphPaintRecord[1].Paint.CompositeMode [SRC_OVER] (3)"),
(b"\x00\x00\x08", "Offset to BackdropPaint from beginning of PaintComposite (8)"),
(b"\x0d", "BaseGlyphPaintRecord[1].Paint.BackdropPaint.Format (13)"),
(b"\x00\x00\x07", "Offset to Paint from beginning of PaintVarTransform (7)"),
(b"\x00\x00\x0a", "Offset to VarAffine2x3 from beginning of PaintVarTransform (10)"),
(b"\x0b", "BaseGlyphPaintRecord[1].Paint.BackdropPaint.Format (11)"),
(b"\x00\x0a", "BaseGlyphPaintRecord[1].Paint.BackdropPaint.Glyph (10)"),
(b"\x00\x01\x00\x00", "VarAffine2x3.xx (1.0)"),
(b"\x00\x00\x00\x00", "VarAffine2x3.xy (0.0)"),
(b"\x00\x00\x00\x00", "VarAffine2x3.yx (0.0)"),
(b"\x00\x01\x00\x00", "VarAffine2x3.yy (1.0)"),
(b"\x01\x2c\x00\x00", "VarAffine2x3.dx (300.0)"),
(b"\x00\x00\x00\x00", "VarAffine2x3.dy (0.0)"),
(b"\xff\xff\xff\xff", "VarIndexBase (0xFFFFFFF)"),
(b"\x0a", "BaseGlyphPaintRecord[1].Paint.SourcePaint.Format (10)"),
(b"\x00\x00\x06", "Offset to Paint subtable from beginning of PaintGlyph (6)"),
(b"\x00\x0b", "BaseGlyphPaintRecord[1].Paint.SourcePaint.Glyph (11)"),
(b"\x08", "BaseGlyphPaintRecord[1].Paint.SourcePaint.Paint.Format (8)"),
(b"\x00\x00\x0c", "Offset to ColorLine from beginning of PaintSweepGradient (12)"),
(b"\x01\x03", "centerX (259)"),
(b"\x01\x2c", "centerY (300)"),
(b"\x10\x00", "startAngle (0.25)"),
(b"\x30\x00", "endAngle (0.75)"),
(b"\x00", "ColorLine.Extend (0; pad)"),
(b"\x00\x02", "ColorLine.StopCount (2)"),
(b"\x00\x00", "ColorLine.ColorStop[0].StopOffset (0.0)"),
(b"\x00\x03", "ColorLine.ColorStop[0].PaletteIndex (3)"),
(b"@\x00", "ColorLine.ColorStop[0].Alpha (1.0)"),
(b"@\x00", "ColorLine.ColorStop[1].StopOffset (1.0)"),
(b"\x00\x05", "ColorLine.ColorStop[1].PaletteIndex (5)"),
(b"@\x00", "ColorLine.ColorStop[1].Alpha (1.0)"),
# LayerList
(b"\x00\x00\x00\x04", "LayerList.LayerCount (4)"),
(
b"\x00\x00\x00\x14",
"First Offset to Paint table from beginning of LayerList (20)",
),
(
b"\x00\x00\x00\x23",
"Second Offset to Paint table from beginning of LayerList (35)",
),
(
b"\x00\x00\x00\x4e",
"Third Offset to Paint table from beginning of LayerList (78)",
),
(
b"\x00\x00\x00\x9e",
"Fourth Offset to Paint table from beginning of LayerList (158)",
),
# BaseGlyphPaintRecord[2]
(b"\x0a", "BaseGlyphPaintRecord[2].Paint.Format (10)"),
(b"\x00\x00\x06", "Offset to Paint subtable from beginning of PaintGlyph (6)"),
(b"\x00\x0b", "BaseGlyphPaintRecord[2].Paint.Glyph (11)"),
# PaintVarSolid
(b"\x03", "LayerList.Paint[0].Paint.Format (3)"),
(b"\x00\x02", "Paint.PaletteIndex (2)"),
(b" \x00", "Paint.Alpha.value (0.5)"),
(b"\xff\xff\xff\xff", "VarIndexBase (0xFFFFFFFF)"),
# PaintGlyph glyph00012
(b"\x0a", "LayerList.Paint[1].Format (10)"),
(b"\x00\x00\x06", "Offset to Paint subtable from beginning of PaintGlyph (6)"),
(b"\x00\x0c", "LayerList.Paint[1].Glyph (glyph00012)"),
(b"\x04", "LayerList.Paint[1].Paint.Format (4)"),
(b"\x00\x00\x10", "Offset to ColorLine from beginning of PaintLinearGradient (16)"),
(b"\x00\x01", "Paint.x0 (1)"),
(b"\x00\x02", "Paint.y0 (2)"),
(b"\xff\xfd", "Paint.x1 (-3)"),
(b"\xff\xfc", "Paint.y1 (-4)"),
(b"\x00\x05", "Paint.x2 (5)"),
(b"\x00\x06", "Paint.y2 (6)"),
(b"\x01", "ColorLine.Extend (1; repeat)"),
(b"\x00\x03", "ColorLine.StopCount (3)"),
(b"\x00\x00", "ColorLine.ColorStop[0].StopOffset (0.0)"),
(b"\x00\x03", "ColorLine.ColorStop[0].PaletteIndex (3)"),
(b"@\x00", "ColorLine.ColorStop[0].Alpha (1.0)"),
(b" \x00", "ColorLine.ColorStop[1].StopOffset (0.5)"),
(b"\x00\x04", "ColorLine.ColorStop[1].PaletteIndex (4)"),
(b"@\x00", "ColorLine.ColorStop[1].Alpha (1.0)"),
(b"@\x00", "ColorLine.ColorStop[2].StopOffset (1.0)"),
(b"\x00\x05", "ColorLine.ColorStop[2].PaletteIndex (5)"),
(b"@\x00", "ColorLine.ColorStop[2].Alpha (1.0)"),
# PaintGlyph glyph00013
(b"\x0a", "LayerList.Paint[2].Format (10)"),
(b"\x00\x00\x06", "Offset to Paint subtable from beginning of PaintGlyph (6)"),
(b"\x00\x0d", "LayerList.Paint[2].Glyph (13)"),
(b"\x0c", "LayerList.Paint[2].Paint.Format (12)"),
(b"\x00\x00\x07", "Offset to Paint subtable from beginning of PaintTransform (7)"),
(b"\x00\x00\x32", "Offset to Affine2x3 subtable from beginning of PaintTransform (50)"),
(b"\x07", "LayerList.Paint[2].Paint.Paint.Format (7)"),
(b"\x00\x00\x14", "Offset to ColorLine from beginning of PaintVarRadialGradient (20)"),
(b"\x00\x07", "Paint.x0.value (7)"),
(b"\x00\x08", "Paint.y0.value (8)"),
(b"\x00\t", "Paint.r0.value (9)"),
(b"\x00\n", "Paint.x1.value (10)"),
(b"\x00\x0b", "Paint.y1.value (11)"),
(b"\x00\x0c", "Paint.r1.value (12)"),
(b"\xff\xff\xff\xff", "VarIndexBase (0xFFFFFFFF)"),
(b"\x00", "ColorLine.Extend (0; pad)"),
(b"\x00\x02", "ColorLine.StopCount (2)"),
(b"\x00\x00", "ColorLine.ColorStop[0].StopOffset.value (0.0)"),
(b"\x00\x06", "ColorLine.ColorStop[0].PaletteIndex (6)"),
(b"@\x00", "ColorLine.ColorStop[0].Alpha.value (1.0)"),
(b"\x00\x00\x00\x00", "VarIndexBase (0)"),
(b"@\x00", "ColorLine.ColorStop[1].StopOffset.value (1.0)"),
(b"\x00\x07", "ColorLine.ColorStop[1].PaletteIndex (7)"),
(b"\x19\x9a", "ColorLine.ColorStop[1].Alpha.value (0.4)"),
(b"\x00\x00\x00\x01", "VarIndexBase (1)"),
(b"\xff\xf3\x00\x00", "Affine2x3.xx (-13)"),
(b"\x00\x0e\x00\x00", "Affine2x3.xy (14)"),
(b"\x00\x0f\x00\x00", "Affine2x3.yx (15)"),
(b"\xff\xef\x00\x00", "Affine2x3.yy (-17)"),
(b"\x00\x12\x00\x00", "Affine2x3.yy (18)"),
(b"\x00\x13\x00\x00", "Affine2x3.yy (19)"),
# PaintTranslate
(b"\x0e", "LayerList.Paint[3].Format (14)"),
(b"\x00\x00\x08", "Offset to Paint subtable from beginning of PaintTranslate (8)"),
(b"\x01\x01", "dx (257)"),
(b"\x01\x02", "dy (258)"),
# PaintRotateAroundCenter
(b"\x1a", "LayerList.Paint[3].Paint.Format (26)"),
(
b"\x00\x00\x0a",
"Offset to Paint subtable from beginning of PaintRotateAroundCenter (11)",
),
(b"\x10\x00", "angle (0.25)"),
(b"\x00\xff", "centerX (255)"),
(b"\x01\x00", "centerY (256)"),
# PaintSkew
(b"\x1c", "LayerList.Paint[3].Paint.Paint.Format (28)"),
(
b"\x00\x00\x08",
"Offset to Paint subtable from beginning of PaintSkew (8)",
),
(b"\xfc\x17", "xSkewAngle (-0.0611)"),
(b"\x01\xc7", "ySkewAngle (0.0278)"),
# PaintGlyph
(b"\x0a", "LayerList.Paint[3].Paint.Paint.Paint.Format (10)"),
(b"\x00\x00\x06", "Offset to Paint subtable from beginning of PaintGlyph (6)"),
(b"\x00\x0b", "LayerList.Paint[2].Glyph (11)"),
# PaintSolid
(b"\x02", "LayerList.Paint[0].Paint.Paint.Paint.Paint.Format (2)"),
(b"\x00\x02", "Paint.PaletteIndex (2)"),
(b" \x00", "Paint.Alpha (0.5)"),
)
COLR_V1_DATA = b"".join(t[0] for t in COLR_V1_SAMPLE)
COLR_V1_XML = [
'<Version value="1"/>',
"<!-- BaseGlyphRecordCount=1 -->",
"<BaseGlyphRecordArray>",
' <BaseGlyphRecord index="0">',
' <BaseGlyph value="glyph00006"/>',
' <FirstLayerIndex value="0"/>',
' <NumLayers value="3"/>',
" </BaseGlyphRecord>",
"</BaseGlyphRecordArray>",
"<LayerRecordArray>",
' <LayerRecord index="0">',
' <LayerGlyph value="glyph00007"/>',
' <PaletteIndex value="0"/>',
" </LayerRecord>",
' <LayerRecord index="1">',
' <LayerGlyph value="glyph00008"/>',
' <PaletteIndex value="1"/>',
" </LayerRecord>",
' <LayerRecord index="2">',
' <LayerGlyph value="glyph00009"/>',
' <PaletteIndex value="2"/>',
" </LayerRecord>",
"</LayerRecordArray>",
"<!-- LayerRecordCount=3 -->",
"<BaseGlyphList>",
" <!-- BaseGlyphCount=3 -->",
' <BaseGlyphPaintRecord index="0">',
' <BaseGlyph value="glyph00010"/>',
' <Paint Format="1"><!-- PaintColrLayers -->',
' <NumLayers value="4"/>',
' <FirstLayerIndex value="0"/>',
" </Paint>",
" </BaseGlyphPaintRecord>",
' <BaseGlyphPaintRecord index="1">',
' <BaseGlyph value="glyph00014"/>',
' <Paint Format="32"><!-- PaintComposite -->',
' <SourcePaint Format="11"><!-- PaintColrGlyph -->',
' <Glyph value="glyph00010"/>',
" </SourcePaint>",
' <CompositeMode value="src_over"/>',
' <BackdropPaint Format="13"><!-- PaintVarTransform -->',
' <Paint Format="11"><!-- PaintColrGlyph -->',
' <Glyph value="glyph00010"/>',
" </Paint>",
" <Transform>",
' <xx value="1.0"/>',
' <yx value="0.0"/>',
' <xy value="0.0"/>',
' <yy value="1.0"/>',
' <dx value="300.0"/>',
' <dy value="0.0"/>',
' <VarIndexBase/>',
" </Transform>",
" </BackdropPaint>",
" </Paint>",
" </BaseGlyphPaintRecord>",
' <BaseGlyphPaintRecord index="2">',
' <BaseGlyph value="glyph00015"/>',
' <Paint Format="10"><!-- PaintGlyph -->',
' <Paint Format="8"><!-- PaintSweepGradient -->',
" <ColorLine>",
' <Extend value="pad"/>',
" <!-- StopCount=2 -->",
' <ColorStop index="0">',
' <StopOffset value="0.0"/>',
' <PaletteIndex value="3"/>',
' <Alpha value="1.0"/>',
" </ColorStop>",
' <ColorStop index="1">',
' <StopOffset value="1.0"/>',
' <PaletteIndex value="5"/>',
' <Alpha value="1.0"/>',
" </ColorStop>",
" </ColorLine>",
' <centerX value="259"/>',
' <centerY value="300"/>',
' <startAngle value="45.0"/>',
' <endAngle value="135.0"/>',
" </Paint>",
' <Glyph value="glyph00011"/>',
" </Paint>",
" </BaseGlyphPaintRecord>",
"</BaseGlyphList>",
"<LayerList>",
" <!-- LayerCount=4 -->",
' <Paint index="0" Format="10"><!-- PaintGlyph -->',
' <Paint Format="3"><!-- PaintVarSolid -->',
' <PaletteIndex value="2"/>',
' <Alpha value="0.5"/>',
' <VarIndexBase/>',
" </Paint>",
' <Glyph value="glyph00011"/>',
" </Paint>",
' <Paint index="1" Format="10"><!-- PaintGlyph -->',
' <Paint Format="4"><!-- PaintLinearGradient -->',
" <ColorLine>",
' <Extend value="repeat"/>',
" <!-- StopCount=3 -->",
' <ColorStop index="0">',
' <StopOffset value="0.0"/>',
' <PaletteIndex value="3"/>',
' <Alpha value="1.0"/>',
" </ColorStop>",
' <ColorStop index="1">',
' <StopOffset value="0.5"/>',
' <PaletteIndex value="4"/>',
' <Alpha value="1.0"/>',
" </ColorStop>",
' <ColorStop index="2">',
' <StopOffset value="1.0"/>',
' <PaletteIndex value="5"/>',
' <Alpha value="1.0"/>',
" </ColorStop>",
" </ColorLine>",
' <x0 value="1"/>',
' <y0 value="2"/>',
' <x1 value="-3"/>',
' <y1 value="-4"/>',
' <x2 value="5"/>',
' <y2 value="6"/>',
" </Paint>",
' <Glyph value="glyph00012"/>',
" </Paint>",
' <Paint index="2" Format="10"><!-- PaintGlyph -->',
' <Paint Format="12"><!-- PaintTransform -->',
' <Paint Format="7"><!-- PaintVarRadialGradient -->',
" <ColorLine>",
' <Extend value="pad"/>',
" <!-- StopCount=2 -->",
' <ColorStop index="0">',
' <StopOffset value="0.0"/>',
' <PaletteIndex value="6"/>',
' <Alpha value="1.0"/>',
' <VarIndexBase value="0"/>',
" </ColorStop>",
' <ColorStop index="1">',
' <StopOffset value="1.0"/>',
' <PaletteIndex value="7"/>',
' <Alpha value="0.4"/>',
' <VarIndexBase value="1"/>',
" </ColorStop>",
" </ColorLine>",
' <x0 value="7"/>',
' <y0 value="8"/>',
' <r0 value="9"/>',
' <x1 value="10"/>',
' <y1 value="11"/>',
' <r1 value="12"/>',
' <VarIndexBase/>',
" </Paint>",
" <Transform>",
' <xx value="-13.0"/>',
' <yx value="14.0"/>',
' <xy value="15.0"/>',
' <yy value="-17.0"/>',
' <dx value="18.0"/>',
' <dy value="19.0"/>',
" </Transform>",
" </Paint>",
' <Glyph value="glyph00013"/>',
" </Paint>",
' <Paint index="3" Format="14"><!-- PaintTranslate -->',
' <Paint Format="26"><!-- PaintRotateAroundCenter -->',
' <Paint Format="28"><!-- PaintSkew -->',
' <Paint Format="10"><!-- PaintGlyph -->',
' <Paint Format="2"><!-- PaintSolid -->',
' <PaletteIndex value="2"/>',
' <Alpha value="0.5"/>',
" </Paint>",
' <Glyph value="glyph00011"/>',
" </Paint>",
' <xSkewAngle value="-11.0"/>',
' <ySkewAngle value="5.0"/>',
" </Paint>",
' <angle value="45.0"/>',
' <centerX value="255"/>',
' <centerY value="256"/>',
" </Paint>",
' <dx value="257"/>',
' <dy value="258"/>',
" </Paint>",
"</LayerList>",
]
class COLR_V1_Test(object):
def test_decompile_and_compile(self, font):
colr = table_C_O_L_R_()
colr.decompile(COLR_V1_DATA, font)
diff_binary_fragments(colr.compile(font), COLR_V1_SAMPLE)
def test_decompile_and_dump_xml(self, font):
colr = table_C_O_L_R_()
colr.decompile(COLR_V1_DATA, font)
dump(colr, font)
assert getXML(colr.toXML, font) == COLR_V1_XML
def test_load_from_xml_and_compile(self, font):
colr = table_C_O_L_R_()
for name, attrs, content in parseXML(COLR_V1_XML):
colr.fromXML(name, attrs, content, font)
diff_binary_fragments(colr.compile(font), COLR_V1_SAMPLE)
def test_round_trip_xml(self, font):
colr = table_C_O_L_R_()
for name, attrs, content in parseXML(COLR_V1_XML):
colr.fromXML(name, attrs, content, font)
compiled = colr.compile(font)
colr = table_C_O_L_R_()
colr.decompile(compiled, font)
assert getXML(colr.toXML, font) == COLR_V1_XML
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