105 lines
2.6 KiB
Python
105 lines
2.6 KiB
Python
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#!/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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from repack_test import RepackTest
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try:
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from fontTools.ttLib import TTFont
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except ImportError:
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print ("fonttools is not present, skipping test.")
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sys.exit (77)
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ots_sanitize = shutil.which ("ots-sanitize")
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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_name %s' % test.font_name)
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print (' test.test_path %s' % os.path.abspath (test.test_path))
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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.font_name + '-subset.ttf')
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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.codepoints_string (),
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"--drop-tables-=GPOS,GSUB,GDEF",]
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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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try:
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with TTFont (out_file) as font:
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pass
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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 result")
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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 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 len (args) != 1:
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sys.exit ("No tests supplied.")
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has_ots = has_ots()
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fails = 0
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path = args[0]
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if not path.endswith(".tests"):
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sys.exit ("Not a valid test case path.")
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with open (path, mode="r", encoding="utf-8") as f:
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# TODO(garretrieger): re-enable OTS checking.
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fails += run_test (RepackTest (path, f.read ()), False)
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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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