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instancer_test: test empty HVAR is not dropped

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This commit is contained in:
Cosimo Lupo 2019-10-24 17:04:04 +01:00
parent f861c68873
commit 9a707a2c1b
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1 changed files with 20 additions and 0 deletions
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Tests/varLib/instancer_test.py
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@ -382,6 +382,26 @@ class InstantiateHVARTest(object):
assert "HVAR" not in varfont assert "HVAR" not in varfont
def test_partial_instance_keep_empty_table(self, varfont):
# Append an additional dummy axis to fvar, for which the current HVAR table
# in our test 'varfont' contains no variation data.
# Instancing the other two wght and wdth axes should leave HVAR table empty,
# to signal there are variations to the glyph's advance widths.
fvar = varfont["fvar"]
axis = _f_v_a_r.Axis()
axis.axisTag = "TEST"
fvar.axes.append(axis)
instancer.instantiateHVAR(varfont, {"wght": 0, "wdth": 0})
assert "HVAR" in varfont
varStore = varfont["HVAR"].table.VarStore
assert varStore.VarRegionList.RegionCount == 0
assert not varStore.VarRegionList.Region
assert varStore.VarRegionList.RegionAxisCount == 1
class InstantiateItemVariationStoreTest(object): class InstantiateItemVariationStoreTest(object):
def test_VarRegion_get_support(self): def test_VarRegion_get_support(self):