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# -*- coding: utf-8 -*-
"""
jinja2.testsuite
~~~~~~~~~~~~~~~~

All the unittests of Jinja2. These tests can be executed by
either running run-tests.py using multiple Python versions at
the same time.

:copyright: (c) 2010 by the Jinja Team.
:license: BSD, see LICENSE for more details.
"""
import os
import re
import sys
import unittest
from traceback import format_exception
from jinja2 import loaders


here = os.path.dirname(os.path.abspath(__file__))

dict_loader = loaders.DictLoader({
    'justdict.html': 'FOO'
})
package_loader = loaders.PackageLoader('jinja2.testsuite.res', 'templates')
filesystem_loader = loaders.FileSystemLoader(here + '/res/templates')
function_loader = loaders.FunctionLoader({'justfunction.html': 'FOO'}.get)
choice_loader = loaders.ChoiceLoader([dict_loader, package_loader])
prefix_loader = loaders.PrefixLoader({
    'a': filesystem_loader,
    'b': dict_loader
})


class JinjaTestCase(unittest.TestCase):

    ### use only these methods for testing. If you need standard
    ### unittest method, wrap them!

    def setup(self):
        pass

    def teardown(self):
        pass

    def setUp(self):
        self.setup()

    def tearDown(self):
        self.teardown()

    def assert_equal(self, a, b):
        return self.assertEqual(a, b)

    def assert_raises(self, *args, **kwargs):
        return self.assertRaises(*args, **kwargs)

    def assert_traceback_matches(self, callback, expected_tb):
        try:
            callback()
        except Exception, e:
            tb = format_exception(*sys.exc_info())
            if re.search(expected_tb.strip(), ''.join(tb)) is None:
                raise self.fail('Traceback did not match:\n\n%s\nexpected:\n%s'
                    % (''.join(tb), expected_tb))
        else:
            self.fail('Expected exception')


def suite():
    from jinja2.testsuite import ext, filters, tests, core_tags, \
         loader, inheritance, imports, lexnparse, security, api, \
         regression, debug, utils, doctests
    suite = unittest.TestSuite()
    suite.addTest(ext.suite())
    suite.addTest(filters.suite())
    suite.addTest(tests.suite())
    suite.addTest(core_tags.suite())
    suite.addTest(loader.suite())
    suite.addTest(inheritance.suite())
    suite.addTest(imports.suite())
    suite.addTest(lexnparse.suite())
    suite.addTest(security.suite())
    suite.addTest(api.suite())
    suite.addTest(regression.suite())
    suite.addTest(debug.suite())
    suite.addTest(utils.suite())

    # doctests will not run on python 3 currently. Too many issues
    # with that, do not test that on that platform.
    if sys.version_info < (3, 0):
        suite.addTest(doctests.suite())

    return suite
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