Allow international phone numbers in spreadsheet

If a service can send internationally, our CSV validation should not
catch valid international phone numbers. This means calling through
to code added to utils in:
- [ ] https://github.com/alphagov/notifications-utils/pull/156

app/main/views/send.py

@@ -218,7 +218,6 @@ def _check_messages(service_id, template_type, upload_id, letters_as_pdf=False):
             upload_id=upload_id
         ) if not letters_as_pdf else None
     )
-
     recipients = RecipientCSV(
         contents,
         template_type=template.template_type,
@@ -228,7 +227,8 @@ def _check_messages(service_id, template_type, upload_id, letters_as_pdf=False):
         whitelist=itertools.chain.from_iterable(
             [user.name, user.mobile_number, user.email_address] for user in users
         ) if current_service['restricted'] else None,
-        remaining_messages=remaining_messages
+        remaining_messages=remaining_messages,
+        international_sms=current_service['can_send_international_sms'],
     )
 
     if request.args.get('from_test'):

tests/app/main/views/test_send.py

@@ -9,6 +9,7 @@ import pytest
 from bs4 import BeautifulSoup
 from flask import url_for
 from notifications_utils.template import LetterPreviewTemplate
+from notifications_utils.recipients import RecipientCSV
 
 from app.main.views.send import get_check_messages_back_url
 
@@ -18,6 +19,8 @@ from tests.conftest import (
     mock_get_service_template,
     mock_get_service_template_with_placeholders,
     mock_get_service_letter_template,
+    mock_get_service,
+    mock_get_international_service,
 )
 
 template_types = ['email', 'sms']
@@ -424,6 +427,42 @@ def test_upload_csvfile_with_valid_phone_shows_all_numbers(
     mock_get_detailed_service_for_today.assert_called_once_with(fake_uuid)
 
 
+@pytest.mark.parametrize('service_mock, should_allow_international', [
+    (mock_get_service, False),
+    (mock_get_international_service, True),
+])
+def test_upload_csvfile_with_international_validates(
+    mocker,
+    api_user_active,
+    logged_in_client,
+    mock_get_service_template,
+    mock_s3_upload,
+    mock_has_permissions,
+    mock_get_users_by_service,
+    mock_get_detailed_service_for_today,
+    fake_uuid,
+    service_mock,
+    should_allow_international,
+):
+
+    service_mock(mocker, api_user_active)
+    mocker.patch('app.main.views.send.s3download', return_value='')
+    mock_recipients = mocker.patch(
+        'app.main.views.send.RecipientCSV',
+        return_value=RecipientCSV("", template_type="sms"),
+    )
+
+    response = logged_in_client.post(
+        url_for('main.send_messages', service_id=fake_uuid, template_id=fake_uuid),
+        data={'file': (BytesIO(''.encode('utf-8')), 'valid.csv')},
+        content_type='multipart/form-data',
+        follow_redirects=True,
+    )
+
+    assert response.status_code == 200
+    assert mock_recipients.call_args[1]['international_sms'] == should_allow_international
+
+
 def test_test_message_can_only_be_sent_now(
     logged_in_client,
     mocker,

tests/conftest.py

@@ -77,6 +77,15 @@ def mock_get_service(mocker, api_user_active):
     return mocker.patch('app.service_api_client.get_service', side_effect=_get)
 
 
+@pytest.fixture(scope='function')
+def mock_get_international_service(mocker, api_user_active):
+    def _get(service_id):
+        service = service_json(service_id, users=[api_user_active.id], can_send_international_sms=True)
+        return {'data': service}
+
+    return mocker.patch('app.service_api_client.get_service', side_effect=_get)
+
+
 @pytest.fixture(scope='function')
 def mock_get_detailed_service(mocker, api_user_active):
     def _get(service_id):