150 lines
4.5 KiB
Python
Executable File
150 lines
4.5 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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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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import shutil
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import io
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import hashlib
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from subset_test_suite import SubsetTestSuite
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try:
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from fontTools.ttLib import TTFont
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except ImportError:
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TTFont = None
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ots_sanitize = shutil.which ("ots-sanitize")
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def subset_cmd (command):
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global hb_subset, process
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print (hb_subset + ' ' + " ".join(command))
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process.stdin.write ((';'.join (command) + '\n').encode ("utf-8"))
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process.stdin.flush ()
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return process.stdout.readline().decode ("utf-8").strip ()
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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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universal_newlines=True)
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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 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 = ["--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",
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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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ret = subset_cmd (cli_args)
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if ret != "success":
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return fail_test (test, cli_args, "%s failed" % ' '.join (cli_args))
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expected_file = os.path.join (test_suite.get_output_directory (), test.get_font_name ())
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with open (expected_file, "rb") as fp:
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expected_hash = hashlib.sha224(fp.read()).hexdigest()
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with open (out_file, "rb") as fp:
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actual_hash = hashlib.sha224(fp.read()).hexdigest()
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if expected_hash == actual_hash:
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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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if TTFont is None:
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print ("fonttools is not present, skipping TTX diff.")
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return fail_test (test, cli_args, "hash for expected and actual does not match.")
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with io.StringIO () as fp:
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try:
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with TTFont (expected_file) as font:
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font.saveXML (fp)
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except Exception as e:
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print (e)
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return fail_test (test, cli_args, "ttx failed to parse the expected result")
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expected_ttx = fp.getvalue ()
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with io.StringIO () as fp:
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try:
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with TTFont (out_file) as font:
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font.saveXML (fp)
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except Exception as e:
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print (e)
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return fail_test (test, cli_args, "ttx failed to parse the actual result")
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actual_ttx = fp.getvalue ()
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if 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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return fail_test (test, cli_args, 'hash for expected and actual does not match, '
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'but the ttx matches. Expected file needs to be updated?')
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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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sys.exit ("First argument does not seem to point to usable hb-subset.")
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hb_subset, args = args[0], args[1:]
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if not len (args):
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sys.exit ("No tests supplied.")
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has_ots = has_ots()
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process = subprocess.Popen ([hb_subset, '--batch'],
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=sys.stdout)
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fails = 0
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for path in args:
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with 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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sys.exit ("%d test(s) failed." % fails)
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else:
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print ("All tests passed.")
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