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 repack_test import RepackTest 16 17try: 18 from fontTools.ttLib import TTFont 19except ImportError: 20 print ("fonttools is not present, skipping test.") 21 sys.exit (77) 22 23ots_sanitize = shutil.which ("ots-sanitize") 24 25def subset_cmd (command): 26 global hb_subset, process 27 print (hb_subset + ' ' + " ".join(command)) 28 process.stdin.write ((';'.join (command) + '\n').encode ("utf-8")) 29 process.stdin.flush () 30 return process.stdout.readline().decode ("utf-8").strip () 31 32def cmd (command): 33 p = subprocess.Popen ( 34 command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, 35 universal_newlines=True) 36 (stdoutdata, stderrdata) = p.communicate () 37 print (stderrdata, end="", file=sys.stderr) 38 return stdoutdata, p.returncode 39 40def fail_test (test, cli_args, message): 41 print ('ERROR: %s' % message) 42 print ('Test State:') 43 print (' test.font_name %s' % test.font_name) 44 print (' test.test_path %s' % os.path.abspath (test.test_path)) 45 return 1 46 47def run_test (test, should_check_ots): 48 out_file = os.path.join (tempfile.mkdtemp (), test.font_name + '-subset.ttf') 49 cli_args = ["--font-file=" + test.font_path (), 50 "--output-file=" + out_file, 51 "--unicodes=%s" % test.codepoints_string (), 52 "--drop-tables-=GPOS,GSUB,GDEF",] 53 print (' '.join (cli_args)) 54 ret = subset_cmd (cli_args) 55 56 if ret != "success": 57 return fail_test (test, cli_args, "%s failed" % ' '.join (cli_args)) 58 59 try: 60 with TTFont (out_file) as font: 61 pass 62 except Exception as e: 63 print (e) 64 return fail_test (test, cli_args, "ttx failed to parse the result") 65 66 if should_check_ots: 67 print ("Checking output with ots-sanitize.") 68 if not check_ots (out_file): 69 return fail_test (test, cli_args, 'ots for subsetted file fails.') 70 71 return 0 72 73def has_ots (): 74 if not ots_sanitize: 75 print ("OTS is not present, skipping all ots checks.") 76 return False 77 return True 78 79def check_ots (path): 80 ots_report, returncode = cmd ([ots_sanitize, path]) 81 if returncode: 82 print ("OTS Failure: %s" % ots_report) 83 return False 84 return True 85 86args = sys.argv[1:] 87if not args or sys.argv[1].find ('hb-subset') == -1 or not os.path.exists (sys.argv[1]): 88 sys.exit ("First argument does not seem to point to usable hb-subset.") 89hb_subset, args = args[0], args[1:] 90 91if len (args) != 1: 92 sys.exit ("No tests supplied.") 93 94has_ots = has_ots() 95 96process = subprocess.Popen ([hb_subset, '--batch'], 97 stdin=subprocess.PIPE, 98 stdout=subprocess.PIPE, 99 stderr=sys.stdout) 100 101fails = 0 102 103path = args[0] 104if not path.endswith(".tests"): 105 sys.exit ("Not a valid test case path.") 106 107with open (path, mode="r", encoding="utf-8") as f: 108 # TODO(garretrieger): re-enable OTS checking. 109 fails += run_test (RepackTest (path, f.read ()), False) 110 111 112if fails != 0: 113 sys.exit ("%d test(s) failed." % fails) 114else: 115 print ("All tests passed.") 116