HarfBuzz text shaping engine http://harfbuzz.github.io/
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#!/usr/bin/env python
from __future__ import print_function, division, absolute_import
import sys, os, subprocess
def cmd(command):
p = subprocess.Popen (
command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
p.wait ()
print (p.stderr.read (), end="") # file=sys.stderr
return p.stdout.read ().decode ("utf-8").strip (), p.returncode
args = sys.argv[1:]
if not args or sys.argv[1].find('hb-shape') == -1 or not os.path.exists (sys.argv[1]):
print ("""First argument does not seem to point to usable hb-shape.""")
sys.exit (1)
hb_shape, args = args[0], args[1:]
extra_options = "--verify"
fails = 0
reference = False
if len (args) and args[0] == "--reference":
reference = True
args = args[1:]
if not len (args):
args = ['-']
for filename in args:
if not reference:
if filename == '-':
print ("Running tests from standard input")
else:
print ("Running tests in " + filename)
if filename == '-':
f = sys.stdin
else:
f = open (filename)
for line in f:
fontfile, options, unicodes, glyphs_expected = line.split (":")
cwd = os.path.dirname(filename)
fontfile = os.path.normpath (os.path.join (cwd, fontfile))
if line.startswith ("#"):
if not reference:
print ("# %s %s --unicodes %s" % (hb_shape, fontfile, unicodes))
continue
if not reference:
print ("%s %s %s %s --unicodes %s" %
(hb_shape, fontfile, extra_options, options, unicodes))
glyphs1, returncode = cmd ([hb_shape, "--font-funcs=ft",
fontfile, extra_options, "--unicodes",
unicodes] + (options.split (' ') if options else []))
if returncode:
print ("hb-shape --font-funcs=ft failed.") # file=sys.stderr
fails = fails + 1
#continue
glyphs2, returncode = cmd ([hb_shape, "--font-funcs=ot",
fontfile, extra_options, "--unicodes",
unicodes] + (options.split (' ') if options else []))
if returncode:
print ("ERROR: hb-shape --font-funcs=ot failed.") # file=sys.stderr
fails = fails + 1
#continue
if glyphs1 != glyphs2:
print ("FT funcs: " + glyphs1) # file=sys.stderr
print ("OT funcs: " + glyphs2) # file=sys.stderr
fails = fails + 1
if reference:
print (":".join ([fontfile, options, unicodes, glyphs1]))
continue
if glyphs1.strip() != glyphs_expected.strip():
print ("Actual: " + glyphs1) # file=sys.stderr
print ("Expected: " + glyphs_expected) # file=sys.stderr
fails = fails + 1
if fails != 0:
if not reference:
print (str (fails) + " tests failed.") # file=sys.stderr
sys.exit (1)
else:
if not reference:
print ("All tests passed.")