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from datetime import datetime, date
from nose.tools import assert_raises
def r(s, context={}):
from coffin.common import env
return env.from_string(s).render(context)
def test_django_builtins_available():
"""Many filters have not been re-implemented specifically for
Coffin, but instead the Django version is used through an
interop-layer.
Make sure that those are properly made available in Jinja2.
"""
from coffin.template import defaultfilters
assert not hasattr(defaultfilters, 'get_digit') # has no port
assert r('{{ "23475"|get_digit("2") }}') == '7'
assert r('{{ unknown|get_digit("2") }}') == ''
def test_jinja2_builtins():
"""Ensure that the Jinja2 builtins are available, and take
precedence over the Django builtins (which we automatically convert
and install).
"""
# Django's default filter only accepts one argument.
assert r('{{ unknown|default("2", True) }}') == '2'
def test_url():
# project name is optional
assert r('{{ "urls_app.views.index"|url() }}') == '/url_test/'
assert r('{{ "apps.urls_app.views.index"|url() }}') == '/url_test/'
def test_default():
"""We make the Jinja2 default filter behave like Django's without
arguments, but still support Jinja2 extended syntax.
"""
assert r('{{ foo|default("default") }}') == 'default'
assert r('{{ foo|default("default") }}', {'foo': False}) == 'default'
assert r('{{ foo|default("default", False) }}', {'foo': False}) == 'False'
def test_pluralize():
assert r('vote{{ 0|pluralize }}') == 'votes'
assert r('vote{{ 1|pluralize }}') == 'vote'
assert r('class{{ 2|pluralize("es") }}') == 'classes'
assert r('cand{{ 0|pluralize("y", "ies") }}') == 'candies'
assert r('cand{{ 1|pluralize("y", "ies") }}') == 'candy'
assert r('cand{{ 2|pluralize("y", "ies") }}') == 'candies'
assert r('vote{{ [1,2,3]|pluralize }}') == 'votes'
assert r('anonyme{{ 0|pluralize("r", "") }}') == 'anonyme'
assert r('anonyme{{ 1|pluralize("r", "") }}') == 'anonymer'
assert r('vote{{ 1|pluralize }}') == 'vote'
assert_raises(TypeError, r, 'vote{{ x|pluralize }}', {'x': object()})
assert_raises(ValueError, r, 'vote{{ x|pluralize }}', {'x': 'foo'})
def test_floatformat():
assert r('{{ 1.3434|floatformat }}') == '1.3'
assert r('{{ 1.3511|floatformat }}') == '1.4'
assert r('{{ 1.3|floatformat(2) }}') == '1.30'
assert r('{{ 1.30|floatformat(-3) }}') == '1.300'
assert r('{{ 1.000|floatformat(3) }}') == '1.000'
assert r('{{ 1.000|floatformat(-3) }}') == '1'
assert_raises(ValueError, r, '{{ "foo"|floatformat(3) }}')
assert_raises(ValueError, r, '{{ 4.33|floatformat("foo") }}')
def test_date_stuff():
from coffin.common import env
assert r('a{{ d|date("Y") }}b', {'d': date(2007, 1, 1)}) == 'a2007b'
assert r('a{{ d|time("H") }}b', {'d': datetime(2007, 1, 1, 12, 1, 1)}) == 'a12b'
# TODO: timesince, timeuntil
# Make sure the date filters can handle unset values gracefully.
# While generally we'd like to be explicit instead of hiding errors,
# this is a particular case where it makes sense.
for f in ('date', 'time', 'timesince', 'timeuntil'):
assert r('a{{ d|%s }}b' % f) == 'ab'
assert r('a{{ d|%s }}b' % f, {'d': None}) == 'ab'
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