Allow test key to send irrespective of trial mode

When you use a simulate API key it should behave like a live service,
except for actually sending the messages. There should be no limits even
if the service is in trial mode.

This commit removes the restriction on sending messages to peole outside
your team when you’re in trial mode.

app/notifications/rest.py

@@ -15,7 +15,7 @@ from notifications_utils.renderers import PassThrough
 from app.clients.email.aws_ses import get_aws_responses
 from app import api_user, encryption, create_uuid, DATETIME_FORMAT, DATE_FORMAT, statsd_client
 from app.dao.services_dao import dao_fetch_todays_stats_for_service
-from app.models import KEY_TYPE_TEAM
+from app.models import KEY_TYPE_TEAM, KEY_TYPE_TEST
 from app.dao import (
     templates_dao,
     services_dao,
@@ -259,12 +259,16 @@ def send_notification(notification_type):
         errors = {'content': [message]}
         raise InvalidRequest(errors, status_code=400)
 
-    if (service.restricted or api_user.key_type == KEY_TYPE_TEAM) and not allowed_to_send_to(
-        notification['to'],
-        itertools.chain.from_iterable(
-            [user.mobile_number, user.email_address] for user in service.users
+    if all((
+        api_user.key_type != KEY_TYPE_TEST,
+        service.restricted or api_user.key_type == KEY_TYPE_TEAM,
+        not allowed_to_send_to(
+            notification['to'],
+            itertools.chain.from_iterable(
+                [user.mobile_number, user.email_address] for user in service.users
+            )
         )
-    ):
+    )):
         if (api_user.key_type == KEY_TYPE_TEAM):
             message = 'Can’t send to this recipient using a team-only API key'
         else: