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edx-platform/lms/djangoapps/course_api/blocks/tests/test_views.py

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Python

"""
Tests for Blocks Views
"""
from datetime import datetime
from unittest import mock
from unittest.mock import Mock
from urllib.parse import urlencode, urlunparse
from completion.test_utils import CompletionWaffleTestMixin, submit_completions_for_testing
from django.conf import settings
from django.urls import reverse
from opaque_keys.edx.locator import CourseLocator
from common.djangoapps.student.models import CourseEnrollment
from common.djangoapps.student.tests.factories import AdminFactory, CourseEnrollmentFactory, UserFactory
from xmodule.modulestore.tests.django_utils import SharedModuleStoreTestCase
from xmodule.modulestore.tests.factories import ToyCourseFactory
from .helpers import deserialize_usage_key
class TestBlocksView(SharedModuleStoreTestCase):
"""
Test class for BlocksView
"""
requested_fields = ['graded', 'format', 'student_view_multi_device', 'children', 'not_a_field', 'due']
BLOCK_TYPES_WITH_STUDENT_VIEW_DATA = ['video', 'discussion', 'html']
@classmethod
def setUpClass(cls):
super().setUpClass()
# create a toy course
cls.course = ToyCourseFactory.create(
modulestore=cls.store,
due=datetime(3013, 9, 18, 11, 30, 00),
)
cls.course_key = cls.course.id
cls.course_usage_key = cls.store.make_course_usage_key(cls.course_key)
cls.non_orphaned_block_usage_keys = {
str(item.location)
for item in cls.store.get_items(cls.course_key)
# remove all orphaned items in the course, except for the root 'course' block
if cls.store.get_parent_location(item.location) or item.category == 'course'
}
def setUp(self):
super().setUp()
# create and enroll user in the toy course
self.user = UserFactory.create()
self.admin_user = AdminFactory.create()
self.client.login(username=self.user.username, password='test')
CourseEnrollmentFactory.create(user=self.user, course_id=self.course_key)
# default values for url and query_params
self.url = reverse(
'blocks_in_block_tree',
kwargs={'usage_key_string': str(self.course_usage_key)}
)
self.query_params = {'depth': 'all', 'username': self.user.username}
def verify_response(self, expected_status_code=200, params=None, url=None, cacheable=False):
"""
Ensure that sending a GET request to the specified URL returns the
expected status code.
Arguments:
expected_status_code: The status_code that is expected in the
response.
params: Parameters to add to self.query_params to include in the
request.
url: The URL to send the GET request. Default is self.url.
Returns:
response: The HttpResponse returned by the request
"""
if params:
self.query_params.update(params)
response = self.client.get(url or self.url, self.query_params)
assert response.status_code == expected_status_code, str(response.content)
if cacheable:
assert response.get('Cache-Control', None) == 'max-age={}'.format(
settings.CACHE_MIDDLEWARE_SECONDS
)
else:
assert response.get('Cache-Control', None) is None
return response
def verify_response_block_list(self, response):
"""
Verify that the response contains only the expected block ids.
"""
self.assertSetEqual(
{block['id'] for block in response.data},
self.non_orphaned_block_usage_keys,
)
def verify_response_block_dict(self, response):
"""
Verify that the response contains the expected blocks
"""
self.assertSetEqual(
set(response.data['blocks'].keys()),
self.non_orphaned_block_usage_keys,
)
def verify_response_with_requested_fields(self, response):
"""
Verify the response has the expected structure
"""
self.verify_response_block_dict(response)
for block_key_string, block_data in response.data['blocks'].items():
block_key = deserialize_usage_key(block_key_string, self.course_key)
xblock = self.store.get_item(block_key)
self.assert_in_iff('children', block_data, xblock.has_children)
self.assert_in_iff('graded', block_data, xblock.graded is not None)
self.assert_in_iff('format', block_data, xblock.format is not None)
self.assert_in_iff('due', block_data, xblock.due is not None)
self.assert_true_iff(block_data['student_view_multi_device'], block_data['type'] == 'html')
assert 'not_a_field' not in block_data
if xblock.has_children:
self.assertSetEqual(
{str(child.location) for child in xblock.get_children()},
set(block_data['children']),
)
def assert_in_iff(self, member, container, predicate):
"""
Assert that member is in container if and only if predicate is true.
Arguments:
member - any object
container - any container
predicate - an expression, tested for truthiness
"""
if predicate:
assert member in container
else:
assert member not in container
def assert_true_iff(self, expression, predicate):
"""
Assert that the expression is true if and only if the predicate is true
Arguments:
expression
predicate
"""
if predicate:
assert expression
else:
assert not expression
def test_not_authenticated_non_public_course_with_other_username(self):
"""
Verify behaviour when accessing course blocks of a non-public course for another user anonymously.
"""
self.client.logout()
self.verify_response(403)
def test_not_authenticated_non_public_course_with_all_blocks(self):
"""
Verify behaviour when accessing all course blocks of a non-public course anonymously.
"""
self.client.logout()
self.query_params.pop('username')
self.query_params['all_blocks'] = True
self.verify_response(403)
def test_not_authenticated_non_public_course_with_blank_username(self):
"""
Verify behaviour when accessing course blocks of a non-public course for anonymous user anonymously.
"""
self.client.logout()
self.query_params['username'] = ''
self.verify_response(403)
@mock.patch("lms.djangoapps.course_api.blocks.forms.permissions.is_course_public", Mock(return_value=True))
def test_not_authenticated_public_course_with_other_username(self):
"""
Verify behaviour when accessing course blocks of a public course for another user anonymously.
"""
self.client.logout()
self.verify_response(403)
@mock.patch("lms.djangoapps.course_api.blocks.forms.permissions.is_course_public", Mock(return_value=True))
def test_not_authenticated_public_course_with_all_blocks(self):
"""
Verify behaviour when accessing all course blocks of a public course anonymously.
"""
self.client.logout()
self.query_params.pop('username')
self.query_params['all_blocks'] = True
self.verify_response(403)
@mock.patch("lms.djangoapps.course_api.blocks.forms.permissions.is_course_public", Mock(return_value=True))
def test_not_authenticated_public_course_with_blank_username(self):
"""
Verify behaviour when accessing course blocks of a public course for anonymous user anonymously.
"""
self.client.logout()
self.query_params['username'] = ''
self.verify_response(cacheable=True)
def test_not_enrolled_non_public_course(self):
"""
Verify behaviour when accessing course blocks for a non-public course as a user not enrolled in course.
"""
CourseEnrollment.unenroll(self.user, self.course_key)
self.verify_response(403)
@mock.patch("lms.djangoapps.course_api.blocks.forms.permissions.is_course_public", Mock(return_value=True))
def test_not_enrolled_public_course(self):
"""
Verify behaviour when accessing course blocks for a public course as a user not enrolled in course.
"""
self.query_params['username'] = ''
CourseEnrollment.unenroll(self.user, self.course_key)
self.verify_response(cacheable=True)
@mock.patch("lms.djangoapps.course_api.blocks.forms.permissions.is_course_public", Mock(return_value=True))
def test_public_course_all_blocks_and_empty_username(self):
"""
Verify behaviour when specifying both all_blocks and username='', and ensure the response is not cached.
"""
self.query_params['username'] = ''
self.query_params['all_blocks'] = True
# Verify response for a regular user.
self.verify_response(403, cacheable=False)
# Verify response for an unenrolled user.
CourseEnrollment.unenroll(self.user, self.course_key)
self.verify_response(403, cacheable=False)
# Verify response for an anonymous user.
self.client.logout()
self.verify_response(403, cacheable=False)
# Verify response for a staff user.
self.client.login(username=self.admin_user.username, password='test')
self.verify_response(cacheable=False)
def test_non_existent_course(self):
usage_key = self.store.make_course_usage_key(CourseLocator('non', 'existent', 'course'))
url = reverse(
'blocks_in_block_tree',
kwargs={'usage_key_string': str(usage_key)}
)
self.verify_response(403, url=url)
def test_no_user_non_staff(self):
self.query_params.pop('username')
self.query_params['all_blocks'] = True
self.verify_response(403)
def test_no_user_staff_not_all_blocks(self):
self.query_params.pop('username')
self.verify_response(400)
def test_no_user_staff_all_blocks(self):
self.client.login(username=self.admin_user.username, password='test')
self.query_params.pop('username')
self.query_params['all_blocks'] = True
self.verify_response()
def test_basic(self):
response = self.verify_response()
assert response.data['root'] == str(self.course_usage_key)
self.verify_response_block_dict(response)
for block_key_string, block_data in response.data['blocks'].items():
block_key = deserialize_usage_key(block_key_string, self.course_key)
assert block_data['id'] == block_key_string
assert block_data['type'] == block_key.block_type
assert block_data['display_name'] == (self.store.get_item(block_key).display_name or '')
def test_return_type_param(self):
response = self.verify_response(params={'return_type': 'list'})
self.verify_response_block_list(response)
def test_block_counts_param(self):
response = self.verify_response(params={'block_counts': ['course', 'chapter']})
self.verify_response_block_dict(response)
for block_data in response.data['blocks'].values():
assert block_data['block_counts']['course'] == (1 if (block_data['type'] == 'course') else 0)
assert block_data['block_counts']['chapter'] == (1 if (block_data['type'] == 'chapter') else
(5 if (block_data['type'] == 'course') else 0))
def test_student_view_data_param(self):
response = self.verify_response(params={
'student_view_data': self.BLOCK_TYPES_WITH_STUDENT_VIEW_DATA + ['chapter']
})
self.verify_response_block_dict(response)
for block_data in response.data['blocks'].values():
self.assert_in_iff(
'student_view_data',
block_data,
block_data['type'] in self.BLOCK_TYPES_WITH_STUDENT_VIEW_DATA
)
def test_extra_field_when_requested(self):
"""
Tests if all requested extra fields appear in output
Requests the fields specified under "COURSE_BLOCKS_API_EXTRA_FIELDS"
in the Test Django settings
Test setting "COURSE_BLOCKS_API_EXTRA_FIELDS" contains:
- other_course_settings
- course_visibility
"""
self.client.login(username=self.admin_user.username, password='test')
response = self.verify_response(params={
'all_blocks': True,
'requested_fields': ['other_course_settings', 'course_visibility'],
})
self.verify_response_block_dict(response)
for block_data in response.data['blocks'].values():
self.assert_in_iff(
'other_course_settings',
block_data,
block_data['type'] == 'course'
)
self.assert_in_iff(
'course_visibility',
block_data,
block_data['type'] == 'course'
)
def test_extra_field_when_not_requested(self):
"""
Tests if fields that weren't requested would appear in output
Requests some of the fields specified under
"COURSE_BLOCKS_API_EXTRA_FIELDS" in the Test Django settings
The other extra fields specified in Test Django settings weren't
requested to see if they would show up in the output or not
Test setting "COURSE_BLOCKS_API_EXTRA_FIELDS" contains:
- other_course_settings
- course_visibility
"""
self.client.login(username=self.admin_user.username, password='test')
response = self.verify_response(params={
'all_blocks': True,
'requested_fields': ['course_visibility'],
})
self.verify_response_block_dict(response)
for block_data in response.data['blocks'].values():
assert 'other_course_settings' not in block_data
self.assert_in_iff(
'course_visibility',
block_data,
block_data['type'] == 'course'
)
def test_navigation_param(self):
response = self.verify_response(params={'nav_depth': 10})
self.verify_response_block_dict(response)
for block_data in response.data['blocks'].values():
assert 'descendants' in block_data
def test_requested_fields_param(self):
response = self.verify_response(
params={'requested_fields': self.requested_fields}
)
self.verify_response_with_requested_fields(response)
def test_with_list_field_url(self):
query = urlencode(list(self.query_params.items()) + [
('requested_fields', self.requested_fields[0]),
('requested_fields', self.requested_fields[1]),
('requested_fields', ",".join(self.requested_fields[1:])),
])
self.query_params = None
response = self.verify_response(
url=urlunparse(("", "", self.url, "", query, ""))
)
self.verify_response_with_requested_fields(response)
class TestBlocksInCourseView(TestBlocksView, CompletionWaffleTestMixin): # pylint: disable=test-inherits-tests
"""
Test class for BlocksInCourseView
"""
def setUp(self):
super().setUp()
self.url = reverse('blocks_in_course')
self.query_params['course_id'] = str(self.course_key)
self.override_waffle_switch(True)
self.non_orphaned_raw_block_usage_keys = {
item.location
for item in self.store.get_items(self.course_key)
# remove all orphaned items in the course, except for the root 'course' block
if self.store.get_parent_location(item.location) or item.category == 'course'
}
def test_no_course_id(self):
self.query_params.pop('course_id')
self.verify_response(400)
def test_invalid_course_id(self):
self.verify_response(400, params={'course_id': 'invalid_course_id'})
def test_non_existent_course(self):
self.verify_response(403, params={'course_id': str(CourseLocator('non', 'existent', 'course'))})
def test_non_existent_course_anonymous(self):
self.client.logout()
self.query_params['username'] = ''
self.verify_response(403, params={'course_id': str(CourseLocator('non', 'existent', 'course'))})
def test_completion_one_unit(self):
for item in self.store.get_items(self.course_key):
if item.category == 'html':
block_usage_key = item.location
break
submit_completions_for_testing(self.user, [block_usage_key])
response = self.verify_response(params={
'depth': 'all',
'requested_fields': ['completion', 'children'],
})
completion = response.data['blocks'][str(block_usage_key)].get('completion')
assert completion
def test_completion_all_course(self):
for block in self.non_orphaned_raw_block_usage_keys:
submit_completions_for_testing(self.user, [block])
response = self.verify_response(params={
'depth': 'all',
'requested_fields': ['completion', 'children'],
})
for block_id in self.non_orphaned_block_usage_keys:
assert response.data['blocks'][block_id].get('completion')
def test_completion_all_course_with_list_return_type(self):
for block in self.non_orphaned_raw_block_usage_keys:
submit_completions_for_testing(self.user, [block])
response = self.verify_response(params={
'depth': 'all',
'return_type': 'list',
'requested_fields': ['completion', 'children'],
})
for block in response.data:
if block['block_id'] in self.non_orphaned_block_usage_keys:
assert block.get('completion')
def test_completion_all_course_with_requested_fields_as_string(self):
for block in self.non_orphaned_raw_block_usage_keys:
submit_completions_for_testing(self.user, [block])
response = self.verify_response(params={
'depth': 'all',
'requested_fields': 'completion,children',
})
for block_id in self.non_orphaned_block_usage_keys:
assert response.data['blocks'][block_id].get('completion')
def test_completion_all_course_with_nav_depth(self):
# when we include nav_depth we get descendants in parent nodes
for block in self.non_orphaned_raw_block_usage_keys:
submit_completions_for_testing(self.user, [block])
response = self.verify_response(params={
'depth': 'all',
'nav_depth': 3,
'requested_fields': ['completion'],
})
for block_id in self.non_orphaned_block_usage_keys:
assert response.data['blocks'][block_id].get('completion')