Replace marshmallow with jsonschema

Created a new schema that accepts request parameters for the
get_notifications v2 route.
Using that to validate now instead of the marshmallow validation.

Also changed the way formatted error messages are returned because
the previous way was cutting off our failing `enum` messages.

tests/app/v2/notifications/test_get_notifications.py

@@ -156,6 +156,40 @@ def test_get_all_notifications_filter_by_single_status(client, notify_db, notify
     assert json_response['notifications'][0]['status'] == "pending"
 
 
+@pytest.mark.parametrize('invalid_statuses, valid_statuses', [
+    # one invalid status
+    (["elephant"], []),
+    # multiple invalid statuses
+    (["elephant", "giraffe", "cheetah"], []),
+    # one bad status and one good status
+    (["elephant"], ["created"]),
+])
+def test_get_all_notifications_filter_by_status_invalid_status(
+        client, notify_db, notify_db_session, invalid_statuses, valid_statuses
+):
+    notification = create_sample_notification(notify_db, notify_db_session, status="pending")
+    create_sample_notification(notify_db, notify_db_session)
+
+    auth_header = create_authorization_header(service_id=notification.service_id)
+    response = client.get(
+        path='/v2/notifications?{}'.format(
+            "&".join(["status={}".format(status) for status in invalid_statuses + valid_statuses])
+        ),
+        headers=[('Content-Type', 'application/json'), auth_header])
+
+    json_response = json.loads(response.get_data(as_text=True))
+    partial_error_message = "is not one of " \
+        "[created, sending, delivered, pending, failed, technical-failure, temporary-failure, permanent-failure]"
+
+    assert response.status_code == 400
+    assert response.headers['Content-type'] == "application/json"
+
+    assert json_response['status_code'] == 400
+    assert len(json_response['errors']) == len(invalid_statuses)
+    for index, invalid_status in enumerate(invalid_statuses):
+        assert json_response['errors'][index]['message'] == "{} {}".format(invalid_status, partial_error_message)
+
+
 def test_get_all_notifications_filter_by_multiple_statuses(client, notify_db, notify_db_session):
     notifications = [
         create_sample_notification(notify_db, notify_db_session, status=_status)