zulip/zerver/tests/test_templates.py

109 lines
3.6 KiB
Python

# -*- coding: utf-8 -*-
from __future__ import absolute_import
from typing import Any, Dict, Iterable
import logging
from django.test import TestCase
from django.template import Template
from django.template.loader import get_template
from zerver.models import get_user_profile_by_email
from zerver.lib.test_helpers import get_all_templates
class get_form_value(object):
def __init__(self, value):
# type: (Any) -> None
self._value = value
def value(self):
# type: () -> Any
return self._value
class DummyForm(dict):
pass
class TemplateTestCase(TestCase):
"""
Tests that backend template rendering doesn't crash.
This renders all the Zulip backend templates, passing dummy data
as the context, which allows us to verify whether any of the
templates are broken enough to not render at all (no verification
is done that the output looks right). Please see `get_context`
function documentation for more information.
"""
def test_templates(self):
# type: () -> None
# Just add the templates whose context has a conflict with other
# templates' context in `exclude`.
exclude = ['analytics/activity.html']
templates = [t for t in get_all_templates() if t not in exclude]
self.render_templates(templates, self.get_context())
# Test the excluded templates with updated context.
update = {'data': [('one', 'two')]}
self.render_templates(exclude, self.get_context(**update))
def render_templates(self, templates, context):
# type: (Iterable[Template], Dict[str, Any]) -> None
for template in templates:
template = get_template(template)
try:
template.render(context)
except Exception:
logging.exception("Exception while rendering '{}'".format(template.template.name))
def get_context(self, **kwargs):
# type: (**Any) -> Dict[str, Any]
"""Get the dummy context for shallow testing.
The context returned will always contain a parameter called
`shallow_tested`, which tells the signal receiver that the
test was not rendered in an actual logical test (so we can
still do coverage reporting on which templates have a logical
test).
Note: `context` just holds dummy values used to make the test
pass. This context only ensures that the templates do not
throw a 500 error when rendered using dummy data. If new
required parameters are added to a template, this test will
fail; the usual fix is to just update the context below to add
the new parameter to the dummy data.
:param kwargs: Keyword arguments can be used to update the base
context.
"""
email = "hamlet@zulip.com"
user_profile = get_user_profile_by_email(email)
context = dict(
shallow_tested=True,
user_profile=user_profile,
product_name='testing',
form=DummyForm(
full_name=get_form_value('John Doe'),
terms=get_form_value(True),
email=get_form_value(email),
),
current_url=lambda: 'www.zulip.com',
referrer=dict(
full_name='John Doe',
realm=dict(name='zulip.com'),
),
uid='uid',
token='token',
message_count=0,
messages=[dict(header='Header')],
new_streams=dict(html=''),
data=dict(title='Title'),
)
context.update(kwargs)
return context