kc3-lang/harfbuzz/test/subset/run-tests.py

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  Commit

• Author : Behdad Esfahbod
  Date : 2022-02-12 14:52:42
  Hash : b3f8288c
  Message : [test/subset] Don't hash files without reason Fixes https://github.com/harfbuzz/harfbuzz/issues/3118#issuecomment-894021518

• test/subset/run-tests.py

• #!/usr/bin/env python3
  
  # Runs a subsetting test suite. Compares the results of subsetting via harfbuzz
  # to subsetting via fonttools.
  
  from difflib import unified_diff
  import os
  import re
  import subprocess
  import sys
  import tempfile
  import shutil
  import io
  
  from subset_test_suite import SubsetTestSuite
  
  try:
  	from fontTools.ttLib import TTFont
  except ImportError:
      TTFont = None
  
  ots_sanitize = shutil.which ("ots-sanitize")
  
  def subset_cmd (command):
  	global hb_subset, process
  	print (hb_subset + ' ' + " ".join(command))
  	process.stdin.write ((';'.join (command) + '\n').encode ("utf-8"))
  	process.stdin.flush ()
  	return process.stdout.readline().decode ("utf-8").strip ()
  
  def cmd (command):
  	p = subprocess.Popen (
  		command, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
  		universal_newlines=True)
  	(stdoutdata, stderrdata) = p.communicate ()
  	print (stderrdata, end="", file=sys.stderr)
  	return stdoutdata, p.returncode
  
  def fail_test (test, cli_args, message):
  	print ('ERROR: %s' % message)
  	print ('Test State:')
  	print ('  test.font_path    %s' % os.path.abspath (test.font_path))
  	print ('  test.profile_path %s' % os.path.abspath (test.profile_path))
  	print ('  test.unicodes	    %s' % test.unicodes ())
  	expected_file = os.path.join (test_suite.get_output_directory (),
  				      test.get_font_name ())
  	print ('  expected_file	    %s' % os.path.abspath (expected_file))
  	return 1
  
  def run_test (test, should_check_ots):
  	out_file = os.path.join (tempfile.mkdtemp (), test.get_font_name () + '-subset' + test.get_font_extension ())
  	cli_args = ["--font-file=" + test.font_path,
  		    "--output-file=" + out_file,
  		    "--unicodes=%s" % test.unicodes (),
  		    "--drop-tables+=DSIG",
  		    "--drop-tables-=sbix"]
  	cli_args.extend (test.get_profile_flags ())
  	ret = subset_cmd (cli_args)
  
  	if ret != "success":
  		return fail_test (test, cli_args, "%s failed" % ' '.join (cli_args))
  
  	expected_file = os.path.join (test_suite.get_output_directory (), test.get_font_name ())
  	with open (expected_file, "rb") as fp:
  		expected_contents = fp.read()
  	with open (out_file, "rb") as fp:
  		actual_contents = fp.read()
  
  	if expected_contents == actual_contents:
  		if should_check_ots:
  			print ("Checking output with ots-sanitize.")
  			if not check_ots (out_file):
  				return fail_test (test, cli_args, 'ots for subsetted file fails.')
  		return 0
  
  	if TTFont is None:
  		print ("fonttools is not present, skipping TTX diff.")
  		return fail_test (test, cli_args, "hash for expected and actual does not match.")
  
  	with io.StringIO () as fp:
  		try:
  			with TTFont (expected_file) as font:
  				font.saveXML (fp)
  		except Exception as e:
  			print (e)
  			return fail_test (test, cli_args, "ttx failed to parse the expected result")
  		expected_ttx = fp.getvalue ()
  
  	with io.StringIO () as fp:
  		try:
  			with TTFont (out_file) as font:
  				font.saveXML (fp)
  		except Exception as e:
  			print (e)
  			return fail_test (test, cli_args, "ttx failed to parse the actual result")
  		actual_ttx = fp.getvalue ()
  
  	if actual_ttx != expected_ttx:
  		for line in unified_diff (expected_ttx.splitlines (1), actual_ttx.splitlines (1)):
  			sys.stdout.write (line)
  		sys.stdout.flush ()
  		return fail_test (test, cli_args, 'ttx for expected and actual does not match.')
  
  	return fail_test (test, cli_args, 'hash for expected and actual does not match, '
  	                                  'but the ttx matches. Expected file needs to be updated?')
  
  
  def has_ots ():
  	if not ots_sanitize:
  		print ("OTS is not present, skipping all ots checks.")
  		return False
  	return True
  
  def check_ots (path):
  	ots_report, returncode = cmd ([ots_sanitize, path])
  	if returncode:
  		print ("OTS Failure: %s" % ots_report)
  		return False
  	return True
  
  args = sys.argv[1:]
  if not args or sys.argv[1].find ('hb-subset') == -1 or not os.path.exists (sys.argv[1]):
  	sys.exit ("First argument does not seem to point to usable hb-subset.")
  hb_subset, args = args[0], args[1:]
  
  if not len (args):
  	sys.exit ("No tests supplied.")
  
  has_ots = has_ots()
  
  process = subprocess.Popen ([hb_subset, '--batch'],
                              stdin=subprocess.PIPE,
                              stdout=subprocess.PIPE,
                              stderr=sys.stdout)
  
  fails = 0
  for path in args:
  	with open (path, mode="r", encoding="utf-8") as f:
  		print ("Running tests in " + path)
  		test_suite = SubsetTestSuite (path, f.read ())
  		for test in test_suite.tests ():
  			fails += run_test (test, has_ots)
  
  if fails != 0:
  	sys.exit ("%d test(s) failed." % fails)
  else:
  	print ("All tests passed.")