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#!/usr/bin/env python
# -*- Mode: Python -*-

import os
import glob
import sys

import unittest

# provide missing unittest decorators and API for python 2.6; these decorators
# do not actually work, just avoid the syntax failure
if sys.version_info[:2] == (2, 6):
    def skipUnless(condition, reason):
        if not condition:
            sys.stderr.write('[expected failure] ')
        return lambda obj: obj

    unittest.skipUnless = skipUnless
    unittest.expectedFailure = lambda obj: obj

    def skipIf(condition, reason):
        if condition:
            sys.stderr.write('[expected failure] ')
        return lambda obj: obj

    unittest.skipIf = skipIf

    def assertGreater(self, a, b, msg=None):
        if not a > b:
            self.fail('%s not greater than %s' % (repr(a), repr(b)))

    def assertGreaterEqual(self, a, b, msg=None):
        if not a >= b:
            self.fail('%s not greater than or equal to %s' % (repr(a), repr(b)))

    def assertLess(self, a, b, msg=None):
        if not a < b:
            self.fail('%s not less than %s' % (repr(a), repr(b)))

    def assertLessEqual(self, a, b, msg=None):
        if not a <= b:
            self.fail('%s not less than or equal to %s' % (repr(a), repr(b)))

    def assertIsInstance(self, obj, cls, msg=None):
        if not isinstance(obj, cls):
            self.fail('%s is not an instance of %r' % (repr(obj), cls))

    unittest.TestCase.assertGreaterEqual = assertGreaterEqual
    unittest.TestCase.assertGreater = assertGreater
    unittest.TestCase.assertLessEqual = assertLessEqual
    unittest.TestCase.assertLess = assertLess
    unittest.TestCase.assertIsInstance = assertIsInstance

if sys.version_info[:2] == (2, 7):
    unittest.TestCase.assertRaisesRegex = unittest.TestCase.assertRaisesRegexp

if '--help' in sys.argv:
    print("Usage: ./runtests.py <testfiles>")
    sys.exit(0)

mydir = os.path.dirname(os.path.abspath(__file__))
tests_builddir = os.path.abspath(os.environ.get('TESTS_BUILDDIR', os.path.dirname(__file__)))
builddir = os.path.dirname(tests_builddir)

# we have to do this here instead of Makefile.am so that the implicitly added
# directory for the source file comes after the builddir
sys.path.insert(0, tests_builddir)
sys.path.insert(0, builddir)

# force untranslated messages, as we check for them in some tests
os.environ['LC_MESSAGES'] = 'C'
os.environ['G_DEBUG'] = 'fatal-warnings fatal-criticals'

# make Gio able to find our gschemas.compiled in tests/. This needs to be set
# before importing Gio. Support a separate build tree, so look in build dir
# first.
os.environ['GSETTINGS_BACKEND'] = 'memory'
os.environ['GSETTINGS_SCHEMA_DIR'] = tests_builddir
os.environ['G_FILENAME_ENCODING'] = 'UTF-8'

# Load tests.
if 'TEST_NAMES' in os.environ:
    names = os.environ['TEST_NAMES'].split()
elif 'TEST_FILES' in os.environ:
    names = []
    for filename in os.environ['TEST_FILES'].split():
        names.append(filename[:-3])
elif len(sys.argv) > 1:
    names = []
    for filename in sys.argv[1:]:
        names.append(filename.replace('.py', ''))
else:
    names = []
    for filename in glob.iglob(os.path.join(mydir, 'test_*.py')):
        names.append(os.path.basename(filename)[:-3])

loader = unittest.TestLoader()
suite = loader.loadTestsFromNames(names)


# Run tests.
runner = unittest.TextTestRunner(verbosity=2)
result = runner.run(suite)
if not result.wasSuccessful():
    sys.exit(1)  # exit code so "make check" reports error