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import unittest
import os
from fontTools import afmLib
CWD = os.path.abspath(os.path.dirname(__file__))
DATADIR = os.path.join(CWD, "data")
AFM = os.path.join(DATADIR, "TestAFM.afm")
class AFMTest(unittest.TestCase):
def test_read_afm(self):
afm = afmLib.AFM(AFM)
self.assertEqual(
sorted(afm.kernpairs()),
sorted(
[("V", "A"), ("T", "comma"), ("V", "d"), ("T", "c"), ("T", "period")]
),
)
self.assertEqual(afm["V", "A"], -60)
self.assertEqual(afm["V", "d"], 30)
self.assertEqual(afm["A"], (65, 668, (8, -25, 660, 666)))
def test_write_afm(self):
afm = afmLib.AFM(AFM)
newAfm, afmData = self.write(afm)
self.assertEqual(afm.kernpairs(), newAfm.kernpairs())
self.assertEqual(afm.chars(), newAfm.chars())
self.assertEqual(
afm.comments(), newAfm.comments()[1:]
) # skip the "generated by afmLib" comment
for pair in afm.kernpairs():
self.assertEqual(afm[pair], newAfm[pair])
for char in afm.chars():
self.assertEqual(afm[char], newAfm[char])
with open(AFM, "r") as f:
originalLines = f.read().splitlines()
newLines = afmData.splitlines()
del newLines[1] # remove the "generated by afmLib" comment
self.assertEqual(originalLines, newLines)
@staticmethod
def write(afm, sep="\r"):
temp = os.path.join(DATADIR, "temp.afm")
try:
afm.write(temp, sep)
with open(temp, "r") as f:
afmData = f.read()
afm = afmLib.AFM(temp)
finally:
if os.path.exists(temp):
os.remove(temp)
return afm, afmData
if __name__ == "__main__":
import sys
sys.exit(unittest.main())
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