def test_hiding_failure(self):
        sample_event_raw = self.create_event_without_fields('timestamp')
        request = self.create_request(
            data=json.dumps(sample_event_raw),
            content_type='application/json'
        )

        response = segmentio.segmentio_event(request)
        self.assertEquals(response.status_code, 200)
        self.assert_no_events_emitted()

    def test_success(self, course_id):
        middleware = TrackMiddleware()

        request = self.create_request(
            data=self.create_segmentio_event_json(data={'foo': 'bar'}, course_id=course_id),
            content_type='application/json'
        )
        User.objects.create(pk=USER_ID, username=str(sentinel.username))

        middleware.process_request(request)
        # The middleware normally emits an event, make sure it doesn't in this case.
        self.assert_no_events_emitted()
        try:
            response = segmentio.segmentio_event(request)
            self.assertEquals(response.status_code, 200)

            expected_event = {
                'accept_language': '',
                'referer': '',
                'username': str(sentinel.username),
                'ip': '',
                'session': '',
                'event_source': 'mobile',
                'event_type': str(sentinel.name),
                'name': str(sentinel.name),
                'event': {'foo': 'bar'},
                'agent': str(sentinel.user_agent),
                'page': None,
                'time': datetime.strptime("2014-08-27T16:33:39.215Z", "%Y-%m-%dT%H:%M:%S.%fZ"),
                'host': 'testserver',
                'context': {
                    'application': {
                        'name': 'edx.mobile.android',
                        'version': '1.0.1',
                    },
                    'user_id': USER_ID,
                    'course_id': course_id,
                    'org_id': u'foo',
                    'path': ENDPOINT,
                    'client': {
                        'library': {
                            'name': 'test-app',
                            'version': 'unknown'
                        },
                        'app': {
                            'version': '1.0.1',
                        },
                    },
                    'received_at': datetime.strptime("2014-08-27T16:33:39.100Z", "%Y-%m-%dT%H:%M:%S.%fZ"),
                },
            }
        finally:
            middleware.process_response(request, None)

        assert_event_matches(expected_event, self.get_event())

    def test_hiding_failure(self):
        sample_event_raw = self.create_event_without_fields('timestamp')
        request = self.create_request(
            data=json.dumps(sample_event_raw),
            content_type='application/json'
        )
        User.objects.create(pk=SEGMENTIO_TEST_USER_ID, username=str(sentinel.username))

        response = segmentio.segmentio_event(request)
        self.assertEquals(response.status_code, 200)
        self.assert_no_events_emitted()

 def test_timestamp_success(self, timestamp):
     sample_event_raw = self.create_segmentio_event()
     sample_event_raw['receivedAt'] = timestamp
     sample_event_raw['timestamp'] = timestamp
     request = self.create_request(
         data=json.dumps(sample_event_raw),
         content_type='application/json'
     )
     response = segmentio.segmentio_event(request)
     self.assertEquals(response.status_code, 200)
     self.assert_events_emitted()

 def test_secret_mismatch(self):
     request = self.create_request(key='y')
     response = segmentio.segmentio_event(request)
     self.assertEquals(response.status_code, 401)
     self.assert_no_events_emitted()

 def test_no_secret_provided(self):
     request = self.request_factory.post(ENDPOINT)
     response = segmentio.segmentio_event(request)
     self.assertEquals(response.status_code, 401)
     self.assert_no_events_emitted()

 def test_get_request(self):
     request = self.request_factory.get(ENDPOINT)
     response = segmentio.segmentio_event(request)
     self.assertEquals(response.status_code, 405)
     self.assert_no_events_emitted()

    def test_previous_builds(self,
                             requested_skip_interval,
                             expected_skip_interval,
                             seek_type_key,
                             seek_type,
                             expected_seek_type,
                             name,
                             expected_name,
                             platform,
                             version,
                             ):
        """
        Test backwards compatibility of previous app builds

        iOS version 1.0.02: Incorrectly emits the skip back 30 seconds as +30
        instead of -30.
        Android version 1.0.02: Skip and slide were both being returned as a
        skip. Skip or slide is determined by checking if the skip time is == -30
        Additionally, for both of the above mentioned versions, edx.video.seeked
        was sent instead of edx.video.position.changed
        """
        course_id = 'foo/bar/baz'
        middleware = TrackMiddleware()
        input_payload = {
            "code": "mobile",
            "new_time": 89.699177437,
            "old_time": 119.699177437,
            seek_type_key: seek_type,
            "requested_skip_interval": requested_skip_interval,
            'module_id': 'i4x://foo/bar/baz/some_module',
        }
        request = self.create_request(
            data=self.create_segmentio_event_json(
                name=name,
                data=input_payload,
                context={
                    'open_in_browser_url': 'https://testserver/courses/foo/bar/baz/courseware/Week_1/Activity/2',
                    'course_id': course_id,
                    'application': {
                        'name': platform,
                        'version': version,
                        'component': 'videoplayer'
                    }
                },
            ),
            content_type='application/json'
        )
        User.objects.create(pk=USER_ID, username=str(sentinel.username))

        middleware.process_request(request)
        try:
            response = segmentio.segmentio_event(request)
            self.assertEquals(response.status_code, 200)

            expected_event = {
                'accept_language': '',
                'referer': '',
                'username': str(sentinel.username),
                'ip': '',
                'session': '',
                'event_source': 'mobile',
                'event_type': "seek_video",
                'name': expected_name,
                'agent': str(sentinel.user_agent),
                'page': 'https://testserver/courses/foo/bar/baz/courseware/Week_1/Activity',
                'time': datetime.strptime("2014-08-27T16:33:39.215Z", "%Y-%m-%dT%H:%M:%S.%fZ"),
                'host': 'testserver',
                'context': {
                    'user_id': USER_ID,
                    'course_id': course_id,
                    'org_id': 'foo',
                    'path': ENDPOINT,
                    'client': {
                        'library': {
                            'name': 'test-app',
                            'version': 'unknown'
                        },
                        'app': {
                            'version': '1.0.1',
                        },
                    },
                    'application': {
                        'name': platform,
                        'version': version,
                        'component': 'videoplayer'
                    },
                    'received_at': datetime.strptime("2014-08-27T16:33:39.100Z", "%Y-%m-%dT%H:%M:%S.%fZ"),
                },
                'event': {
                    "code": "mobile",
                    "new_time": 89.699177437,
                    "old_time": 119.699177437,
                    "type": expected_seek_type,
                    "requested_skip_interval": expected_skip_interval,
                    'id': 'i4x-foo-bar-baz-some_module',
                }
            }
        finally:
            middleware.process_response(request, None)

#.........这里部分代码省略.........

    def test_video_event(self, name, event_type):
        course_id = 'foo/bar/baz'
        middleware = TrackMiddleware()

        input_payload = {
            'current_time': 132.134456,
            'module_id': 'i4x://foo/bar/baz/some_module',
            'code': 'mobile'
        }
        if name == 'edx.video.loaded':
            # We use the same expected payload for all of these types of events, but the load video event is the only
            # one that is not actually expected to contain a "current time" field. So we remove it from the expected
            # event here.
            del input_payload['current_time']

        request = self.create_request(
            data=self.create_segmentio_event_json(
                name=name,
                data=input_payload,
                context={
                    'open_in_browser_url': 'https://testserver/courses/foo/bar/baz/courseware/Week_1/Activity/2',
                    'course_id': course_id,
                    'application': {
                        'name': 'edx.mobileapp.android',
                        'version': '29',
                        'component': 'videoplayer'
                    }
                }),
            content_type='application/json'
        )
        User.objects.create(pk=USER_ID, username=str(sentinel.username))

        middleware.process_request(request)
        try:
            response = segmentio.segmentio_event(request)
            self.assertEquals(response.status_code, 200)

            expected_event = {
                'accept_language': '',
                'referer': '',
                'username': str(sentinel.username),
                'ip': '',
                'session': '',
                'event_source': 'mobile',
                'event_type': event_type,
                'name': name,
                'agent': str(sentinel.user_agent),
                'page': 'https://testserver/courses/foo/bar/baz/courseware/Week_1/Activity',
                'time': datetime.strptime("2014-08-27T16:33:39.215Z", "%Y-%m-%dT%H:%M:%S.%fZ"),
                'host': 'testserver',
                'context': {
                    'user_id': USER_ID,
                    'course_id': course_id,
                    'org_id': 'foo',
                    'path': ENDPOINT,
                    'client': {
                        'library': {
                            'name': 'test-app',
                            'version': 'unknown'
                        },
                        'app': {
                            'version': '1.0.1',
                        },
                    },
                    'application': {
                        'name': 'edx.mobileapp.android',
                        'version': '29',
                        'component': 'videoplayer'
                    },
                    'received_at': datetime.strptime("2014-08-27T16:33:39.100Z", "%Y-%m-%dT%H:%M:%S.%fZ"),
                },
                'event': {
                    'currentTime': 132.134456,
                    'id': 'i4x-foo-bar-baz-some_module',
                    'code': 'mobile'
                }
            }
            if name == 'edx.video.loaded':
                # We use the same expected payload for all of these types of events, but the load video event is the
                # only one that is not actually expected to contain a "current time" field. So we remove it from the
                # expected event here.
                del expected_event['event']['currentTime']
        finally:
            middleware.process_response(request, None)

        actual_event = self.get_event()
        assert_event_matches(expected_event, actual_event)

 def test_no_secret_config(self):
     request = self.request_factory.post(SEGMENTIO_TEST_ENDPOINT)
     response = segmentio.segmentio_event(request)
     self.assertEquals(response.status_code, 401)
     self.assert_no_events_emitted()

    def test_video_event(self, name, event_type):
        course_id = 'foo/bar/baz'
        middleware = TrackMiddleware()

        input_payload = {
            'current_time': 132.134456,
            'module_id': 'i4x://foo/bar/baz/some_module',
            'code': 'mobile'
        }
        if name == 'edx.video.loaded':
            del input_payload['current_time']

        request = self.create_request(
            data=self.create_segmentio_event_json(
                name=name,
                data=input_payload,
                open_in_browser_url='https://testserver/courses/foo/bar/baz/courseware/Week_1/Activity/2',
                context={
                    'course_id': course_id,
                    'application': {
                        'name': 'edx.mobileapp.android',
                        'version': '29',
                        'component': 'videoplayer'
                    }
                }),
            content_type='application/json'
        )
        User.objects.create(pk=USER_ID, username=str(sentinel.username))

        middleware.process_request(request)
        try:
            response = segmentio.segmentio_event(request)
            self.assertEquals(response.status_code, 200)

            expected_event_without_payload = {
                'username': str(sentinel.username),
                'ip': '',
                'session': '',
                'event_source': 'mobile',
                'event_type': event_type,
                'name': name,
                'agent': str(sentinel.user_agent),
                'page': 'https://testserver/courses/foo/bar/baz/courseware/Week_1/Activity',
                'time': datetime.strptime("2014-08-27T16:33:39.215Z", "%Y-%m-%dT%H:%M:%S.%fZ"),
                'host': 'testserver',
                'context': {
                    'user_id': USER_ID,
                    'course_id': course_id,
                    'org_id': 'foo',
                    'path': ENDPOINT,
                    'client': {
                        'library': {
                            'name': 'test-app',
                            'version': 'unknown'
                        },
                        'application': {
                            'name': 'edx.mobileapp.android',
                            'version': '29',
                            'component': 'videoplayer'
                        }
                    },
                    'received_at': datetime.strptime("2014-08-27T16:33:39.100Z", "%Y-%m-%dT%H:%M:%S.%fZ"),
                },
            }
            expected_payload = {
                'currentTime': 132.134456,
                'id': 'i4x-foo-bar-baz-some_module',
                'code': 'mobile'
            }
            if name == 'edx.video.loaded':
                del expected_payload['currentTime']
        finally:
            middleware.process_response(request, None)

        actual_event = dict(self.get_event())
        payload = json.loads(actual_event.pop('event'))

        self.assertEquals(actual_event, expected_event_without_payload)
        self.assertEquals(payload, expected_payload)