1#!/usr/bin/env python3 2 3# Runs a subsetting test suite. Compares the results of subsetting via harfbuzz 4# to subsetting via fonttools. 5 6from difflib import unified_diff 7import os 8import re 9import subprocess 10import sys 11import tempfile 12import shutil 13import io 14 15from subset_test_suite import SubsetTestSuite 16 17try: 18 from fontTools.ttLib import TTFont 19except ImportError: 20 TTFont = None 21 22ots_sanitize = shutil.which ("ots-sanitize") 23 24def subset_cmd (command): 25 global hb_subset, process 26 print (hb_subset + ' ' + " ".join(command)) 27 process.stdin.write ((';'.join (command) + '\n').encode ("utf-8")) 28 process.stdin.flush () 29 return process.stdout.readline().decode ("utf-8").strip () 30 31def cmd (command): 32 p = subprocess.Popen ( 33 command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, 34 universal_newlines=True) 35 (stdoutdata, stderrdata) = p.communicate () 36 print (stderrdata, end="", file=sys.stderr) 37 return stdoutdata, p.returncode 38 39def fail_test (test, cli_args, message): 40 print ('ERROR: %s' % message) 41 print ('Test State:') 42 print (' test.font_path %s' % os.path.abspath (test.font_path)) 43 print (' test.profile_path %s' % os.path.abspath (test.profile_path)) 44 print (' test.unicodes %s' % test.unicodes ()) 45 expected_file = os.path.join (test_suite.get_output_directory (), 46 test.get_font_name ()) 47 print (' expected_file %s' % os.path.abspath (expected_file)) 48 return 1 49 50def run_test (test, should_check_ots, preprocess): 51 out_file = os.path.join (tempfile.mkdtemp (), test.get_font_name () + '-subset' + test.get_font_extension ()) 52 cli_args = ["--font-file=" + test.font_path, 53 "--output-file=" + out_file, 54 "--unicodes=%s" % test.unicodes (), 55 "--drop-tables+=DSIG", 56 "--drop-tables-=sbix"] 57 if preprocess: 58 cli_args.extend(["--preprocess-face",]) 59 60 cli_args.extend (test.get_profile_flags ()) 61 if test.get_instance_flags (): 62 cli_args.extend (["--instance=%s" % ','.join(test.get_instance_flags ())]) 63 ret = subset_cmd (cli_args) 64 65 if ret != "success": 66 return fail_test (test, cli_args, "%s failed" % ' '.join (cli_args)) 67 68 expected_file = os.path.join (test_suite.get_output_directory (), test.get_font_name ()) 69 with open (expected_file, "rb") as fp: 70 expected_contents = fp.read() 71 with open (out_file, "rb") as fp: 72 actual_contents = fp.read() 73 74 if expected_contents == actual_contents: 75 if should_check_ots: 76 print ("Checking output with ots-sanitize.") 77 if not check_ots (out_file): 78 return fail_test (test, cli_args, 'ots for subsetted file fails.') 79 return 0 80 81 if TTFont is None: 82 print ("fonttools is not present, skipping TTX diff.") 83 return fail_test (test, cli_args, "hash for expected and actual does not match.") 84 85 with io.StringIO () as fp: 86 try: 87 with TTFont (expected_file) as font: 88 font.saveXML (fp) 89 except Exception as e: 90 print (e) 91 return fail_test (test, cli_args, "ttx failed to parse the expected result") 92 expected_ttx = fp.getvalue () 93 94 with io.StringIO () as fp: 95 try: 96 with TTFont (out_file) as font: 97 font.saveXML (fp) 98 except Exception as e: 99 print (e) 100 return fail_test (test, cli_args, "ttx failed to parse the actual result") 101 actual_ttx = fp.getvalue () 102 103 if actual_ttx != expected_ttx: 104 for line in unified_diff (expected_ttx.splitlines (1), actual_ttx.splitlines (1)): 105 sys.stdout.write (line) 106 sys.stdout.flush () 107 return fail_test (test, cli_args, 'ttx for expected and actual does not match.') 108 109 return fail_test (test, cli_args, 'hash for expected and actual does not match, ' 110 'but the ttx matches. Expected file needs to be updated?') 111 112 113def has_ots (): 114 if not ots_sanitize: 115 print ("OTS is not present, skipping all ots checks.") 116 return False 117 return True 118 119def check_ots (path): 120 ots_report, returncode = cmd ([ots_sanitize, path]) 121 if returncode: 122 print ("OTS Failure: %s" % ots_report) 123 return False 124 return True 125 126args = sys.argv[1:] 127if not args or sys.argv[1].find ('hb-subset') == -1 or not os.path.exists (sys.argv[1]): 128 sys.exit ("First argument does not seem to point to usable hb-subset.") 129hb_subset, args = args[0], args[1:] 130 131if not len (args): 132 sys.exit ("No tests supplied.") 133 134has_ots = has_ots() 135 136process = subprocess.Popen ([hb_subset, '--batch'], 137 stdin=subprocess.PIPE, 138 stdout=subprocess.PIPE, 139 stderr=sys.stdout) 140 141fails = 0 142for path in args: 143 with open (path, mode="r", encoding="utf-8") as f: 144 print ("Running tests in " + path) 145 test_suite = SubsetTestSuite (path, f.read ()) 146 for test in test_suite.tests (): 147 # Tests are run with and without preprocessing, results should be the 148 # same between them. 149 fails += run_test (test, has_ots, False) 150 fails += run_test (test, has_ots, True) 151 152if fails != 0: 153 sys.exit ("%d test(s) failed." % fails) 154else: 155 print ("All tests passed.") 156