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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

import os, sys
import glob
import optparse
import traceback
import WebIDL

class TestHarness(object):
    def __init__(self, test, verbose):
        self.test = test
        self.verbose = verbose
        self.printed_intro = False

    def start(self):
        if self.verbose:
            self.maybe_print_intro()

    def finish(self):
        if self.verbose or self.printed_intro:
            print "Finished test %s" % self.test

    def maybe_print_intro(self):
        if not self.printed_intro:
            print "Starting test %s" % self.test
            self.printed_intro = True

    def test_pass(self, msg):
        if self.verbose:
            print "TEST-PASS | %s" % msg

    def test_fail(self, msg):
        self.maybe_print_intro()
        print "TEST-UNEXPECTED-FAIL | %s" % msg

    def ok(self, condition, msg):
        if condition:
            self.test_pass(msg)
        else:
            self.test_fail(msg)

    def check(self, a, b, msg):
        if a == b:
            self.test_pass(msg)
        else:
            self.test_fail(msg)
            print "\tGot %s expected %s" % (a, b)

def run_tests(tests, verbose):
    testdir = os.path.join(os.path.dirname(__file__), 'tests')
    if not tests:
        tests = glob.iglob(os.path.join(testdir, "*.py"))
    sys.path.append(testdir)

    for test in tests:
        (testpath, ext) = os.path.splitext(os.path.basename(test))
        _test = __import__(testpath, globals(), locals(), ['WebIDLTest'])

        harness = TestHarness(test, verbose)
        harness.start()
        try:
            _test.WebIDLTest.__call__(WebIDL.Parser(), harness)
        except Exception, ex:
            print "TEST-UNEXPECTED-FAIL | Unhandled exception in test %s: %s" % (testpath, ex)
            traceback.print_exc()
        finally:
            harness.finish()

if __name__ == '__main__':
    usage = """%prog [OPTIONS] [TESTS]
               Where TESTS are relative to the tests directory."""
    parser = optparse.OptionParser(usage=usage)
    parser.add_option('-q', '--quiet', action='store_false', dest='verbose', default=True,
                      help="Don't print passing tests.")
    options, tests = parser.parse_args()

    run_tests(tests, verbose=options.verbose)