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[AAT] Another unit test for decoding the ankr anchor points table

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This commit is contained in:
Sascha Brawer 2017-08-31 14:44:24 +02:00
parent 898f6911f8
commit f80b341977
1 changed files with 32 additions and 7 deletions
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39
Tests/ttLib/tables/_a_n_k_r_test.py
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@ -20,9 +20,9 @@ ANKR_FORMAT_0_DATA = deHexStr(
'0000 0024 ' # 8: GlyphDataTableOffset=36
'0006 0004 0002 ' # 12: LookupFormat=6, UnitSize=4, NUnits=2
'0008 0001 0000 ' # 18: SearchRange=8, EntrySelector=1, RangeShift=0
'0001 0000 ' # 24: Glyph=A, GlyphDataOffset=0 (+GlyphDataOffset=36)
'0003 0008 ' # 28: Glyph=C, GlyphDataOffset=8 (+GlyphDataOffset=44)
'FFFF 0000 ' # 32: Glyph=<end>, GlyphDataOffset=<n/a>
'0001 0000 ' # 24: Glyph=A, Offset=0 (+GlyphDataTableOffset=36)
'0003 0008 ' # 28: Glyph=C, Offset=8 (+GlyphDataTableOffset=44)
'FFFF 0000 ' # 32: Glyph=<end>, Offset=<n/a>
'0000 0001 ' # 36: GlyphData[A].NumPoints=1
'0235 045E ' # 40: GlyphData[A].Points[0].X=565, .Y=1118
'0000 0001 ' # 44: GlyphData[C].NumPoints=1
@ -54,6 +54,28 @@ ANKR_FORMAT_0_XML = [
]
# Same data as ANKR_FORMAT_0_DATA, but with chunks of unused data
# whose presence should not stop us from decompiling the table.
ANKR_FORMAT_0_STRAY_DATA = deHexStr(
'0000 0000 ' # 0: Format=0, Flags=0
'0000 0018 ' # 4: LookupTableOffset=24
'0000 0034 ' # 8: GlyphDataTableOffset=52
'DEAD BEEF CAFE ' # 12: <stray data>
'DEAD BEEF CAFE ' # 18: <stray data>
'0006 0004 0002 ' # 24: LookupFormat=6, UnitSize=4, NUnits=2
'0008 0001 0000 ' # 30: SearchRange=8, EntrySelector=1, RangeShift=0
'0001 0000 ' # 36: Glyph=A, Offset=0 (+GlyphDataTableOffset=52)
'0003 0008 ' # 40: Glyph=C, Offset=8 (+GlyphDataTableOffset=60)
'FFFF 0000 ' # 44: Glyph=<end>, Offset=<n/a>
'BEEF F00D ' # 48: <stray data>
'0000 0001 ' # 52: GlyphData[A].NumPoints=1
'0235 045E ' # 56: GlyphData[A].Points[0].X=565, .Y=1118
'0000 0001 ' # 60: GlyphData[C].NumPoints=1
'FED2 045E ' # 64: GlyphData[C].Points[0].X=-302, .Y=1118
) # 68: <end>
assert len(ANKR_FORMAT_0_STRAY_DATA) == 68
# Constructed test case where glyphs A and D share the same anchor data.
ANKR_FORMAT_0_SHARING_DATA = deHexStr(
'0000 0000 ' # 0: Format=0, Flags=0
@ -61,10 +83,10 @@ ANKR_FORMAT_0_SHARING_DATA = deHexStr(
'0000 0028 ' # 8: GlyphDataTableOffset=40
'0006 0004 0003 ' # 12: LookupFormat=6, UnitSize=4, NUnits=3
'0008 0001 0004 ' # 18: SearchRange=8, EntrySelector=1, RangeShift=4
'0001 0000 ' # 24: Glyph=A, GlyphDataOffset=0 (+GlyphDataOffset=36)
'0003 0008 ' # 28: Glyph=C, GlyphDataOffset=8 (+GlyphDataOffset=44)
'0004 0000 ' # 32: Glyph=D, GlyphDataOffset=0 (+GlyphDataOffset=36)
'FFFF 0000 ' # 36: Glyph=<end>, GlyphDataOffset=<n/a>
'0001 0000 ' # 24: Glyph=A, Offset=0 (+GlyphDataTableOffset=36)
'0003 0008 ' # 28: Glyph=C, Offset=8 (+GlyphDataTableOffset=44)
'0004 0000 ' # 32: Glyph=D, Offset=0 (+GlyphDataTableOffset=36)
'FFFF 0000 ' # 36: Glyph=<end>, Offset=<n/a>
'0000 0001 ' # 40: GlyphData[A].NumPoints=1
'0235 045E ' # 44: GlyphData[A].Points[0].X=565, .Y=1118
'0000 0002 ' # 48: GlyphData[C].NumPoints=2
@ -133,6 +155,9 @@ class ANKRTest(unittest.TestCase):
def testFormat0(self):
self.roundtrip(ANKR_FORMAT_0_DATA, ANKR_FORMAT_0_XML)
def testFormat0_stray(self):
self.decompileToXML(ANKR_FORMAT_0_STRAY_DATA, ANKR_FORMAT_0_XML)
def testFormat0_sharing(self):
self.roundtrip(ANKR_FORMAT_0_SHARING_DATA, ANKR_FORMAT_0_SHARING_XML)