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Path: /lib/python2.7/site-packages/jinja2/testsuite/

Viewing File: tests.py

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

    Who tests the tests?

    :copyright: (c) 2010 by the Jinja Team.
    :license: BSD, see LICENSE for more details.
"""
import unittest
from jinja2.testsuite import JinjaTestCase

from jinja2 import Markup, Environment

env = Environment()


class TestsTestCase(JinjaTestCase):

    def test_defined(self):
        tmpl = env.from_string('{{ missing is defined }}|{{ true is defined }}')
        assert tmpl.render() == 'False|True'

    def test_even(self):
        tmpl = env.from_string('''{{ 1 is even }}|{{ 2 is even }}''')
        assert tmpl.render() == 'False|True'

    def test_odd(self):
        tmpl = env.from_string('''{{ 1 is odd }}|{{ 2 is odd }}''')
        assert tmpl.render() == 'True|False'

    def test_lower(self):
        tmpl = env.from_string('''{{ "foo" is lower }}|{{ "FOO" is lower }}''')
        assert tmpl.render() == 'True|False'

    def test_typechecks(self):
        tmpl = env.from_string('''
            {{ 42 is undefined }}
            {{ 42 is defined }}
            {{ 42 is none }}
            {{ none is none }}
            {{ 42 is number }}
            {{ 42 is string }}
            {{ "foo" is string }}
            {{ "foo" is sequence }}
            {{ [1] is sequence }}
            {{ range is callable }}
            {{ 42 is callable }}
            {{ range(5) is iterable }}
            {{ {} is mapping }}
            {{ mydict is mapping }}
            {{ [] is mapping }}
        ''')
        class MyDict(dict):
            pass
        assert tmpl.render(mydict=MyDict()).split() == [
            'False', 'True', 'False', 'True', 'True', 'False',
            'True', 'True', 'True', 'True', 'False', 'True',
            'True', 'True', 'False'
        ]

    def test_sequence(self):
        tmpl = env.from_string(
            '{{ [1, 2, 3] is sequence }}|'
            '{{ "foo" is sequence }}|'
            '{{ 42 is sequence }}'
        )
        assert tmpl.render() == 'True|True|False'

    def test_upper(self):
        tmpl = env.from_string('{{ "FOO" is upper }}|{{ "foo" is upper }}')
        assert tmpl.render() == 'True|False'

    def test_sameas(self):
        tmpl = env.from_string('{{ foo is sameas false }}|'
                               '{{ 0 is sameas false }}')
        assert tmpl.render(foo=False) == 'True|False'

    def test_no_paren_for_arg1(self):
        tmpl = env.from_string('{{ foo is sameas none }}')
        assert tmpl.render(foo=None) == 'True'

    def test_escaped(self):
        env = Environment(autoescape=True)
        tmpl = env.from_string('{{ x is escaped }}|{{ y is escaped }}')
        assert tmpl.render(x='foo', y=Markup('foo')) == 'False|True'


def suite():
    suite = unittest.TestSuite()
    suite.addTest(unittest.makeSuite(TestsTestCase))
    return suite