150 lines
4.3 KiB
Python
Executable File
150 lines
4.3 KiB
Python
Executable File
#!/usr/bin/env python3
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# Runs a subsetting test suite. Compares the results of subsetting via harfbuzz
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# to subsetting via fonttools.
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import io
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from difflib import unified_diff
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import os
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import re
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import subprocess
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import sys
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import tempfile
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from subset_test_suite import SubsetTestSuite
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# https://stackoverflow.com/a/377028
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def which (program):
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def is_exe (fpath):
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return os.path.isfile (fpath) and os.access (fpath, os.X_OK)
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fpath, _ = os.path.split (program)
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if fpath:
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if is_exe (program):
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return program
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else:
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for path in os.environ["PATH"].split (os.pathsep):
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exe_file = os.path.join (path, program)
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if is_exe (exe_file):
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return exe_file
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return None
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fonttools = which ("fonttools")
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ots_sanitize = which ("ots-sanitize")
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if not fonttools:
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print ("fonttools is not present, skipping test.")
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sys.exit (77)
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def cmd(command):
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p = subprocess.Popen (
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command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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(stdoutdata, stderrdata) = p.communicate ()
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print (stderrdata, end="") # file=sys.stderr
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return stdoutdata, p.returncode
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def read_binary (file_path):
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with open (file_path, 'rb') as f:
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return f.read ()
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def fail_test (test, cli_args, message):
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print ('ERROR: %s' % message)
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print ('Test State:')
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print (' test.font_path %s' % os.path.abspath (test.font_path))
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print (' test.profile_path %s' % os.path.abspath (test.profile_path))
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print (' test.unicodes %s' % test.unicodes ())
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expected_file = os.path.join(test_suite.get_output_directory (),
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test.get_font_name ())
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print (' expected_file %s' % os.path.abspath (expected_file))
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return 1
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def run_test (test, should_check_ots):
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out_file = os.path.join (tempfile.mkdtemp (), test.get_font_name () + '-subset' + test.get_font_extension ())
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cli_args = [hb_subset,
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"--font-file=" + test.font_path,
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"--output-file=" + out_file,
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"--unicodes=%s" % test.unicodes (),
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"--drop-tables+=DSIG,GPOS,GSUB,GDEF",
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"--drop-tables-=sbix"]
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cli_args.extend (test.get_profile_flags ())
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print (' '.join (cli_args))
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_, return_code = cmd (cli_args)
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if return_code:
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return fail_test (test, cli_args, "%s returned %d" % (' '.join (cli_args), return_code))
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expected_ttx, return_code = run_ttx (os.path.join (test_suite.get_output_directory (),
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test.get_font_name ()))
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if return_code:
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return fail_test (test, cli_args, "ttx (expected) returned %d" % (return_code))
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actual_ttx, return_code = run_ttx (out_file)
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if return_code:
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return fail_test (test, cli_args, "ttx (actual) returned %d" % (return_code))
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print ("stripping checksums.")
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expected_ttx = strip_check_sum (expected_ttx)
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actual_ttx = strip_check_sum (actual_ttx)
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if not actual_ttx == expected_ttx:
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for line in unified_diff (expected_ttx.splitlines (1), actual_ttx.splitlines (1)):
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sys.stdout.write (line)
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sys.stdout.flush ()
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return fail_test (test, cli_args, 'ttx for expected and actual does not match.')
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if should_check_ots:
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print ("Checking output with ots-sanitize.")
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if not check_ots (out_file):
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return fail_test (test, cli_args, 'ots for subsetted file fails.')
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return 0
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def run_ttx (file):
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print ("fonttools ttx %s" % file)
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return cmd ([fonttools, "ttx", "-q", "-o-", file])
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def strip_check_sum (ttx_string):
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return re.sub ('checkSumAdjustment value=["]0x([0-9a-fA-F])+["]',
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'checkSumAdjustment value="0x00000000"',
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ttx_string.decode ("utf-8"), count=1)
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def has_ots ():
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if not ots_sanitize:
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print("OTS is not present, skipping all ots checks.")
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return False
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return True
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def check_ots (path):
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ots_report, returncode = cmd ([ots_sanitize, path])
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if returncode:
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print("OTS Failure: %s" % ots_report);
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return False
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return True
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args = sys.argv[1:]
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if not args or sys.argv[1].find ('hb-subset') == -1 or not os.path.exists (sys.argv[1]):
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print ("First argument does not seem to point to usable hb-subset.")
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sys.exit (1)
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hb_subset, args = args[0], args[1:]
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if not len (args):
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print ("No tests supplied.")
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sys.exit (1)
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has_ots = has_ots()
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fails = 0
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for path in args:
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with io.open (path, mode="r", encoding="utf-8") as f:
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print ("Running tests in " + path)
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test_suite = SubsetTestSuite (path, f.read ())
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for test in test_suite.tests ():
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fails += run_test (test, has_ots)
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if fails != 0:
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print (str (fails) + " test(s) failed.")
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sys.exit(1)
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else:
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print ("All tests passed.")
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