"""Tests for the Zendesk"""
from django.contrib.auth.models import AnonymousUser
from django.http import Http404
from django.test import TestCase
from django.test.client import RequestFactory
from django.test.utils import override_settings
from student.tests.factories import UserFactory
from util import views
from zendesk import ZendeskError
import json
import mock
@mock.patch.dict("django.conf.settings.FEATURES", {"ENABLE_FEEDBACK_SUBMISSION": True})
@override_settings(ZENDESK_URL="dummy", ZENDESK_USER="dummy", ZENDESK_API_KEY="dummy")
@mock.patch("util.views.dog_stats_api")
@mock.patch("util.views._ZendeskApi", autospec=True)
class SubmitFeedbackTest(TestCase):
def setUp(self):
"""Set up data for the test case"""
self._request_factory = RequestFactory()
self._anon_user = AnonymousUser()
self._auth_user = UserFactory.create(
email="test@edx.org",
username="test",
profile__name="Test User"
)
# This contains issue_type and course_id to ensure that tags are submitted correctly
self._anon_fields = {
"email": "test@edx.org",
"name": "Test User",
"subject": "a subject",
"details": "some details",
"issue_type": "test_issue",
"course_id": "test_course"
}
# This does not contain issue_type nor course_id to ensure that they are optional
self._auth_fields = {"subject": "a subject", "details": "some details"}
def _build_and_run_request(self, user, fields):
"""
Generate a request and invoke the view, returning the response.
The request will be a POST request from the given `user`, with the given
`fields` in the POST body.
"""
req = self._request_factory.post(
"/submit_feedback",
data=fields,
HTTP_REFERER="test_referer",
HTTP_USER_AGENT="test_user_agent",
REMOTE_ADDR="1.2.3.4",
SERVER_NAME="test_server"
)
req.user = user
return views.submit_feedback(req)
def _assert_bad_request(self, response, field, zendesk_mock_class, datadog_mock):
"""
Assert that the given `response` contains correct failure data.
It should have a 400 status code, and its content should be a JSON
object containing the specified `field` and an `error`.
"""
self.assertEqual(response.status_code, 400)
resp_json = json.loads(response.content)
self.assertTrue("field" in resp_json)
self.assertEqual(resp_json["field"], field)
self.assertTrue("error" in resp_json)
# There should be absolutely no interaction with Zendesk
self.assertFalse(zendesk_mock_class.return_value.mock_calls)
self.assertFalse(datadog_mock.mock_calls)
def _test_bad_request_omit_field(self, user, fields, omit_field, zendesk_mock_class, datadog_mock):
"""
Invoke the view with a request missing a field and assert correctness.
The request will be a POST request from the given `user`, with POST
fields taken from `fields` minus the entry specified by `omit_field`.
The response should have a 400 (bad request) status code and specify
the invalid field and an error message, and the Zendesk API should not
have been invoked.
"""
filtered_fields = {k: v for (k, v) in fields.items() if k != omit_field}
resp = self._build_and_run_request(user, filtered_fields)
self._assert_bad_request(resp, omit_field, zendesk_mock_class, datadog_mock)
def _test_bad_request_empty_field(self, user, fields, empty_field, zendesk_mock_class, datadog_mock):
"""
Invoke the view with an empty field and assert correctness.
The request will be a POST request from the given `user`, with POST
fields taken from `fields`, replacing the entry specified by
`empty_field` with the empty string. The response should have a 400
(bad request) status code and specify the invalid field and an error
message, and the Zendesk API should not have been invoked.
"""
altered_fields = fields.copy()
altered_fields[empty_field] = ""
resp = self._build_and_run_request(user, altered_fields)
self._assert_bad_request(resp, empty_field, zendesk_mock_class, datadog_mock)
def _test_success(self, user, fields):
"""
Generate a request, invoke the view, and assert success.
The request will be a POST request from the given `user`, with the given
`fields` in the POST body. The response should have a 200 (success)
status code.
"""
resp = self._build_and_run_request(user, fields)
self.assertEqual(resp.status_code, 200)
def _assert_datadog_called(self, datadog_mock, with_tags):
expected_datadog_calls = [
mock.call.increment(
views.DATADOG_FEEDBACK_METRIC,
tags=(["course_id:test_course", "issue_type:test_issue"] if with_tags else [])
)
]
self.assertEqual(datadog_mock.mock_calls, expected_datadog_calls)
def test_bad_request_anon_user_no_name(self, zendesk_mock_class, datadog_mock):
"""Test a request from an anonymous user not specifying `name`."""
self._test_bad_request_omit_field(self._anon_user, self._anon_fields, "name", zendesk_mock_class, datadog_mock)
self._test_bad_request_empty_field(self._anon_user, self._anon_fields, "name", zendesk_mock_class, datadog_mock)
def test_bad_request_anon_user_no_email(self, zendesk_mock_class, datadog_mock):
"""Test a request from an anonymous user not specifying `email`."""
self._test_bad_request_omit_field(self._anon_user, self._anon_fields, "email", zendesk_mock_class, datadog_mock)
self._test_bad_request_empty_field(self._anon_user, self._anon_fields, "email", zendesk_mock_class, datadog_mock)
def test_bad_request_anon_user_invalid_email(self, zendesk_mock_class, datadog_mock):
"""Test a request from an anonymous user specifying an invalid `email`."""
fields = self._anon_fields.copy()
fields["email"] = "This is not a valid email address!"
resp = self._build_and_run_request(self._anon_user, fields)
self._assert_bad_request(resp, "email", zendesk_mock_class, datadog_mock)
def test_bad_request_anon_user_no_subject(self, zendesk_mock_class, datadog_mock):
"""Test a request from an anonymous user not specifying `subject`."""
self._test_bad_request_omit_field(self._anon_user, self._anon_fields, "subject", zendesk_mock_class, datadog_mock)
self._test_bad_request_empty_field(self._anon_user, self._anon_fields, "subject", zendesk_mock_class, datadog_mock)
def test_bad_request_anon_user_no_details(self, zendesk_mock_class, datadog_mock):
"""Test a request from an anonymous user not specifying `details`."""
self._test_bad_request_omit_field(self._anon_user, self._anon_fields, "details", zendesk_mock_class, datadog_mock)
self._test_bad_request_empty_field(self._anon_user, self._anon_fields, "details", zendesk_mock_class, datadog_mock)
def test_valid_request_anon_user(self, zendesk_mock_class, datadog_mock):
"""
Test a valid request from an anonymous user.
The response should have a 200 (success) status code, and a ticket with
the given information should have been submitted via the Zendesk API.
"""
zendesk_mock_instance = zendesk_mock_class.return_value
zendesk_mock_instance.create_ticket.return_value = 42
self._test_success(self._anon_user, self._anon_fields)
expected_zendesk_calls = [
mock.call.create_ticket(
{
"ticket": {
"requester": {"name": "Test User", "email": "test@edx.org"},
"subject": "a subject",
"comment": {"body": "some details"},
"tags": ["test_course", "test_issue", "LMS"]
}
}
),
mock.call.update_ticket(
42,
{
"ticket": {
"comment": {
"public": False,
"body":
"Additional information:\n\n"
"Client IP: 1.2.3.4\n"
"Host: test_server\n"
"Page: test_referer\n"
"Browser: test_user_agent"
}
}
}
)
]
self.assertEqual(zendesk_mock_instance.mock_calls, expected_zendesk_calls)
self._assert_datadog_called(datadog_mock, with_tags=True)
def test_bad_request_auth_user_no_subject(self, zendesk_mock_class, datadog_mock):
"""Test a request from an authenticated user not specifying `subject`."""
self._test_bad_request_omit_field(self._auth_user, self._auth_fields, "subject", zendesk_mock_class, datadog_mock)
self._test_bad_request_empty_field(self._auth_user, self._auth_fields, "subject", zendesk_mock_class, datadog_mock)
def test_bad_request_auth_user_no_details(self, zendesk_mock_class, datadog_mock):
"""Test a request from an authenticated user not specifying `details`."""
self._test_bad_request_omit_field(self._auth_user, self._auth_fields, "details", zendesk_mock_class, datadog_mock)
self._test_bad_request_empty_field(self._auth_user, self._auth_fields, "details", zendesk_mock_class, datadog_mock)
def test_valid_request_auth_user(self, zendesk_mock_class, datadog_mock):
"""
Test a valid request from an authenticated user.
The response should have a 200 (success) status code, and a ticket with
the given information should have been submitted via the Zendesk API.
"""
zendesk_mock_instance = zendesk_mock_class.return_value
zendesk_mock_instance.create_ticket.return_value = 42
self._test_success(self._auth_user, self._auth_fields)
expected_zendesk_calls = [
mock.call.create_ticket(
{
"ticket": {
"requester": {"name": "Test User", "email": "test@edx.org"},
"subject": "a subject",
"comment": {"body": "some details"},
"tags": ["LMS"]
}
}
),
mock.call.update_ticket(
42,
{
"ticket": {
"comment": {
"public": False,
"body":
"Additional information:\n\n"
"username: test\n"
"Client IP: 1.2.3.4\n"
"Host: test_server\n"
"Page: test_referer\n"
"Browser: test_user_agent"
}
}
}
)
]
self.assertEqual(zendesk_mock_instance.mock_calls, expected_zendesk_calls)
self._assert_datadog_called(datadog_mock, with_tags=False)
def test_get_request(self, zendesk_mock_class, datadog_mock):
"""Test that a GET results in a 405 even with all required fields"""
req = self._request_factory.get("/submit_feedback", data=self._anon_fields)
req.user = self._anon_user
resp = views.submit_feedback(req)
self.assertEqual(resp.status_code, 405)
self.assertIn("Allow", resp)
self.assertEqual(resp["Allow"], "POST")
# There should be absolutely no interaction with Zendesk
self.assertFalse(zendesk_mock_class.mock_calls)
self.assertFalse(datadog_mock.mock_calls)
def test_zendesk_error_on_create(self, zendesk_mock_class, datadog_mock):
"""
Test Zendesk returning an error on ticket creation.
We should return a 500 error with no body
"""
err = ZendeskError(msg="", error_code=404)
zendesk_mock_instance = zendesk_mock_class.return_value
zendesk_mock_instance.create_ticket.side_effect = err
resp = self._build_and_run_request(self._anon_user, self._anon_fields)
self.assertEqual(resp.status_code, 500)
self.assertFalse(resp.content)
self._assert_datadog_called(datadog_mock, with_tags=True)
def test_zendesk_error_on_update(self, zendesk_mock_class, datadog_mock):
"""
Test for Zendesk returning an error on ticket update.
If Zendesk returns any error on ticket update, we return a 200 to the
browser because the update contains additional information that is not
necessary for the user to have submitted their feedback.
"""
err = ZendeskError(msg="", error_code=500)
zendesk_mock_instance = zendesk_mock_class.return_value
zendesk_mock_instance.update_ticket.side_effect = err
resp = self._build_and_run_request(self._anon_user, self._anon_fields)
self.assertEqual(resp.status_code, 200)
self._assert_datadog_called(datadog_mock, with_tags=True)
@mock.patch.dict("django.conf.settings.FEATURES", {"ENABLE_FEEDBACK_SUBMISSION": False})
def test_not_enabled(self, zendesk_mock_class, datadog_mock):
"""
Test for Zendesk submission not enabled in `settings`.
We should raise Http404.
"""
with self.assertRaises(Http404):
self._build_and_run_request(self._anon_user, self._anon_fields)
def test_zendesk_not_configured(self, zendesk_mock_class, datadog_mock):
"""
Test for Zendesk not fully configured in `settings`.
For each required configuration parameter, test that setting it to
`None` causes an otherwise valid request to return a 500 error.
"""
def test_case(missing_config):
with mock.patch(missing_config, None):
with self.assertRaises(Exception):
self._build_and_run_request(self._anon_user, self._anon_fields)
test_case("django.conf.settings.ZENDESK_URL")
test_case("django.conf.settings.ZENDESK_USER")
test_case("django.conf.settings.ZENDESK_API_KEY")