Files
edx-platform/lms/djangoapps/courseware/tests/test_discussion_xblock.py
2016-10-14 10:54:50 -04:00

424 lines
15 KiB
Python

"""
Tests for the discussion xblock.
Most of the tests are in common/xblock/xblock_discussion, here are only
tests for functionalities that require django API, and lms specific
functionalities.
"""
import uuid
import ddt
import json
import mock
from django.core.urlresolvers import reverse
from course_api.blocks.tests.helpers import deserialize_usage_key
from courseware.module_render import get_module_for_descriptor_internal
from student.tests.factories import UserFactory, CourseEnrollmentFactory
from xblock.field_data import DictFieldData
from xblock.fragment import Fragment
from xmodule.modulestore import ModuleStoreEnum
from xmodule.modulestore.tests.factories import ToyCourseFactory, ItemFactory
from xmodule.modulestore.tests.django_utils import SharedModuleStoreTestCase
from lms.djangoapps.courseware.tests import XModuleRenderingTestBase
from xblock_discussion import DiscussionXBlock, loader
@ddt.ddt
class TestDiscussionXBlock(XModuleRenderingTestBase):
"""
Base class for tests
"""
PATCH_DJANGO_USER = True
def setUp(self):
"""
Set up the xblock runtime, test course, discussion, and user.
"""
super(TestDiscussionXBlock, self).setUp()
self.patchers = []
self.course_id = "test_course"
self.runtime = self.new_module_runtime()
self.runtime.modulestore = mock.Mock()
self.discussion_id = str(uuid.uuid4())
self.data = DictFieldData({
'discussion_id': self.discussion_id
})
scope_ids = mock.Mock()
scope_ids.usage_id.course_key = self.course_id
self.block = DiscussionXBlock(
self.runtime,
field_data=self.data,
scope_ids=scope_ids
)
self.block.xmodule_runtime = mock.Mock()
if self.PATCH_DJANGO_USER:
self.django_user_canary = object()
self.django_user_mock = self.add_patcher(
mock.patch.object(DiscussionXBlock, "django_user", new_callable=mock.PropertyMock)
)
self.django_user_mock.return_value = self.django_user_canary
def add_patcher(self, patcher):
"""
Registers a patcher object, and returns mock. This patcher will be disabled after the test.
"""
self.patchers.append(patcher)
return patcher.start()
def tearDown(self):
"""
Tears down any patchers added during tests.
"""
super(TestDiscussionXBlock, self).tearDown()
for patcher in self.patchers:
patcher.stop()
class TestGetDjangoUser(TestDiscussionXBlock):
"""
Tests for the django_user property.
"""
PATCH_DJANGO_USER = False
def setUp(self):
"""
Mock the user service and runtime.
"""
super(TestGetDjangoUser, self).setUp()
self.django_user = object()
self.user_service = mock.Mock()
self.add_patcher(
mock.patch.object(self.runtime, "service", return_value=self.user_service)
)
self.user_service._django_user = self.django_user # pylint: disable=protected-access
def test_django_user(self):
"""
Tests that django_user users returns _django_user attribute
of the user service.
"""
actual_user = self.block.django_user
self.runtime.service.assert_called_once_with(
self.block, 'user')
self.assertEqual(actual_user, self.django_user)
def test_django_user_handles_missing_service(self):
"""
Tests that get_django gracefully handles missing user service.
"""
self.runtime.service.return_value = None
self.assertEqual(self.block.django_user, None)
@ddt.ddt
class TestViews(TestDiscussionXBlock):
"""
Tests for student_view and author_view.
"""
def setUp(self):
"""
Mock the methods needed for these tests.
"""
super(TestViews, self).setUp()
self.template_canary = u'canary'
self.render_template = mock.Mock()
self.render_template.return_value = self.template_canary
self.block.runtime.render_template = self.render_template
self.has_permission_mock = mock.Mock()
self.has_permission_mock.return_value = False
self.block.has_permission = self.has_permission_mock
def get_template_context(self):
"""
Returns context passed to rendering of the django template
(rendered by runtime).
"""
self.assertEqual(self.render_template.call_count, 1)
return self.render_template.call_args_list[0][0][1]
def get_rendered_template(self):
"""
Returns the name of the template rendered by runtime.
"""
self.assertEqual(self.render_template.call_count, 1)
return self.render_template.call_args_list[0][0][0]
def test_studio_view(self):
"""
Test for the studio view.
"""
fragment = self.block.author_view()
self.assertIsInstance(fragment, Fragment)
self.assertEqual(fragment.content, self.template_canary)
self.render_template.assert_called_once_with(
'discussion/_discussion_inline_studio.html',
{'discussion_id': self.discussion_id}
)
@ddt.data(
(False, False, False),
(True, False, False),
(False, True, False),
(False, False, True),
)
def test_student_perms_are_correct(self, permissions):
"""
Test that context will get proper permissions.
"""
permission_dict = {
'create_thread': permissions[0],
'create_comment': permissions[1],
'create_sub_comment': permissions[2]
}
expected_permissions = {
'can_create_thread': permission_dict['create_thread'],
'can_create_comment': permission_dict['create_comment'],
'can_create_subcomment': permission_dict['create_sub_comment'],
}
self.block.has_permission = lambda perm: permission_dict[perm]
with mock.patch.object(loader, 'render_template', mock.Mock):
self.block.student_view()
context = self.get_template_context()
for permission_name, expected_value in expected_permissions.items():
self.assertEqual(expected_value, context[permission_name])
def test_js_init(self):
"""
Test proper js init function is called.
"""
with mock.patch.object(loader, 'render_template', mock.Mock):
fragment = self.block.student_view()
self.assertEqual(fragment.js_init_fn, 'DiscussionInlineBlock')
@ddt.ddt
class TestTemplates(TestDiscussionXBlock):
"""
Tests rendering of templates.
"""
def test_has_permission(self):
"""
Test for has_permission method.
"""
permission_canary = object()
with mock.patch('django_comment_client.permissions.has_permission', return_value=permission_canary) as has_perm:
actual_permission = self.block.has_permission("test_permission")
self.assertEqual(actual_permission, permission_canary)
has_perm.assert_called_once_with(self.django_user_canary, 'test_permission', 'test_course')
def test_studio_view(self):
"""Test for studio view."""
fragment = self.block.author_view({})
self.assertIn('data-discussion-id="{}"'.format(self.discussion_id), fragment.content)
@ddt.data(
(True, False, False),
(False, True, False),
(False, False, True),
)
def test_student_perms_are_correct(self, permissions):
"""
Test for lms view.
"""
permission_dict = {
'create_thread': permissions[0],
'create_comment': permissions[1],
'create_sub_comment': permissions[2]
}
self.block.has_permission = lambda perm: permission_dict[perm]
fragment = self.block.student_view()
read_only = 'false' if permissions[0] else 'true'
self.assertIn('data-discussion-id="{}"'.format(self.discussion_id), fragment.content)
self.assertIn('data-user-create-comment="{}"'.format(json.dumps(permissions[1])), fragment.content)
self.assertIn('data-user-create-subcomment="{}"'.format(json.dumps(permissions[2])), fragment.content)
self.assertIn('data-read-only="{read_only}"'.format(read_only=read_only), fragment.content)
@ddt.ddt
class TestXBlockInCourse(SharedModuleStoreTestCase):
"""
Test the discussion xblock as rendered in the course and course API.
"""
@classmethod
def setUpClass(cls):
"""
Set up a user, course, and discussion XBlock for use by tests.
"""
super(TestXBlockInCourse, cls).setUpClass()
cls.user = UserFactory.create()
cls.course = ToyCourseFactory.create()
cls.course_key = cls.course.id
cls.course_usage_key = cls.store.make_course_usage_key(cls.course_key)
cls.discussion_id = "test_discussion_xblock_id"
cls.discussion = ItemFactory.create(
parent_location=cls.course_usage_key,
category='discussion',
discussion_id=cls.discussion_id,
discussion_category='Category discussion',
discussion_target='Target Discussion',
)
CourseEnrollmentFactory.create(user=cls.user, course_id=cls.course_key)
def get_root(self, block):
"""
Return root of the block.
"""
while block.parent:
block = block.get_parent()
return block
def test_html_with_user(self):
"""
Test rendered DiscussionXBlock permissions.
"""
discussion_xblock = get_module_for_descriptor_internal(
user=self.user,
descriptor=self.discussion,
student_data=mock.Mock(name='student_data'),
course_id=self.course.id,
track_function=mock.Mock(name='track_function'),
xqueue_callback_url_prefix=mock.Mock(name='xqueue_callback_url_prefix'),
request_token='request_token',
)
fragment = discussion_xblock.render('student_view')
html = fragment.content
self.assertIn('data-user-create-comment="false"', html)
self.assertIn('data-user-create-subcomment="false"', html)
@ddt.data(ModuleStoreEnum.Type.mongo, ModuleStoreEnum.Type.split)
def test_discussion_render_successfully_with_orphan_parent(self, default_store):
"""
Test that discussion xblock render successfully
if discussion xblock is child of an orphan.
"""
with self.store.default_store(default_store):
orphan_sequential = self.store.create_item(self.user.id, self.course.id, 'sequential')
vertical = self.store.create_child(
self.user.id,
orphan_sequential.location,
'vertical',
block_id=self.course.location.block_id
)
discussion = self.store.create_child(
self.user.id,
vertical.location,
'discussion',
block_id=self.course.location.block_id
)
discussion = self.store.get_item(discussion.location)
root = self.get_root(discussion)
# Assert that orphan sequential is root of the discussion xblock.
self.assertEqual(orphan_sequential.location.block_type, root.location.block_type)
self.assertEqual(orphan_sequential.location.block_id, root.location.block_id)
# Get xblock bound to a user and a descriptor.
discussion_xblock = get_module_for_descriptor_internal(
user=self.user,
descriptor=discussion,
student_data=mock.Mock(name='student_data'),
course_id=self.course.id,
track_function=mock.Mock(name='track_function'),
xqueue_callback_url_prefix=mock.Mock(name='xqueue_callback_url_prefix'),
request_token='request_token',
)
fragment = discussion_xblock.render('student_view')
html = fragment.content
self.assertIsInstance(discussion_xblock, DiscussionXBlock)
self.assertIn('data-user-create-comment="false"', html)
self.assertIn('data-user-create-subcomment="false"', html)
def test_discussion_student_view_data(self):
"""
Tests that course block api returns student_view_data for discussion xblock
"""
self.client.login(username=self.user.username, password='test')
url = reverse('blocks_in_block_tree', kwargs={'usage_key_string': unicode(self.course_usage_key)})
query_params = {
'depth': 'all',
'username': self.user.username,
'block_types_filter': 'discussion',
'student_view_data': 'discussion'
}
response = self.client.get(url, query_params)
self.assertEquals(response.status_code, 200)
self.assertEquals(response.data['root'], unicode(self.course_usage_key)) # pylint: disable=no-member
for block_key_string, block_data in response.data['blocks'].iteritems(): # pylint: disable=no-member
block_key = deserialize_usage_key(block_key_string, self.course_key)
self.assertEquals(block_data['id'], block_key_string)
self.assertEquals(block_data['type'], block_key.block_type)
self.assertEquals(block_data['display_name'], self.store.get_item(block_key).display_name or '')
self.assertEqual(block_data['student_view_data'], {"topic_id": self.discussion_id})
class TestXBlockQueryLoad(SharedModuleStoreTestCase):
"""
Test the number of queries executed when rendering the XBlock.
"""
def test_permissions_query_load(self):
"""
Tests that the permissions queries are cached when rendering numerous discussion XBlocks.
"""
user = UserFactory.create()
course = ToyCourseFactory.create()
course_key = course.id
course_usage_key = self.store.make_course_usage_key(course_key)
discussions = []
for counter in range(5):
discussion_id = 'test_discussion_{}'.format(counter)
discussions.append(ItemFactory.create(
parent_location=course_usage_key,
category='discussion',
discussion_id=discussion_id,
discussion_category='Category discussion',
discussion_target='Target Discussion',
))
# 3 queries are required to do first discussion xblock render:
# * django_comment_client_role
# * django_comment_client_permission
# * lms_xblock_xblockasidesconfig
num_queries = 3
for discussion in discussions:
discussion_xblock = get_module_for_descriptor_internal(
user=user,
descriptor=discussion,
student_data=mock.Mock(name='student_data'),
course_id=course.id,
track_function=mock.Mock(name='track_function'),
xqueue_callback_url_prefix=mock.Mock(name='xqueue_callback_url_prefix'),
request_token='request_token',
)
with self.assertNumQueries(num_queries):
fragment = discussion_xblock.render('student_view')
# Permissions are cached, so no queries required for subsequent renders
num_queries = 0
html = fragment.content
self.assertIn('data-user-create-comment="false"', html)
self.assertIn('data-user-create-subcomment="false"', html)