#!/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 repack_test import RepackTest
try:
from fontTools.ttLib import TTFont
except ImportError:
print("# fonttools is not present, skipping test.")
sys.exit()
ots_sanitize = shutil.which("ots-sanitize")
EXE_WRAPPER = os.environ.get("MESON_EXE_WRAPPER")
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()
if stderrdata:
print(stderrdata, file=sys.stderr)
return stdoutdata, p.returncode
def fail_test(test, cli_args, message):
global fails
fails += 1
print("ERROR: %s" % message)
print("Test State:")
print(" test.font_name %s" % test.font_name)
print(" test.test_path %s" % os.path.abspath(test.test_path))
print("not ok -", test)
print(" ---", file=sys.stderr)
print(' message: "%s"' % message, file=sys.stderr)
print(' test.font_name: "%s"' % test.font_name, file=sys.stderr)
print(' test.test_path: "%s"' % os.path.abspath(test.test_path), file=sys.stderr)
print(" ...", file=sys.stderr)
return False
def run_test(test, should_check_ots):
out_file = os.path.join(out_dir, test.font_name + "-subset.ttf")
cli_args = [
"--font-file=" + test.font_path(),
"--output-file=" + out_file,
"--unicodes=%s" % test.codepoints_string(),
"--drop-tables-=GPOS,GSUB,GDEF",
]
print("#", " ".join(cli_args))
ret = subset_cmd(cli_args)
if ret != "success":
return fail_test(test, cli_args, "%s failed" % " ".join(cli_args))
try:
with TTFont(out_file) as font:
pass
except Exception as e:
print(e)
return fail_test(test, cli_args, "ttx failed to parse the result")
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 True
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 len(args) != 1:
sys.exit("No tests supplied.")
batch_cmd = [hb_subset, "--batch"]
if EXE_WRAPPER:
batch_cmd = [EXE_WRAPPER] + batch_cmd
process = subprocess.Popen(
batch_cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=sys.stdout
)
print("TAP version 14")
has_ots = has_ots()
fails = 0
path = args[0]
if not path.endswith(".tests"):
sys.exit("Not a valid test case path.")
out_dir = tempfile.mkdtemp()
number = 0
with open(path, mode="r", encoding="utf-8") as f:
# TODO(garretrieger): re-enable OTS checking.
if run_test(RepackTest(path, f.read()), False):
number += 1
print("ok %d - %s" % (number, os.path.basename(path)))
print("1..%d" % number)
if fails != 0:
print("# %d test(s) failed; output left in %s" % (fails, out_dir))
else:
print("# All tests passed.")
shutil.rmtree(out_dir)
