Add method to get jobs for a contact list

Because the API lets us query jobs by contact list now, let’s add the
model and client layer code that will let us display them in the admin
app.

tests/app/models/test_contact_list.py

@@ -1,9 +1,28 @@
 from datetime import datetime
 
 from app.models.contact_list import ContactList
+from app.models.job import PaginatedJobs
 
 
 def test_created_at():
     created_at = ContactList({'created_at': '2016-05-06T07:08:09.061258'}).created_at
     assert isinstance(created_at, datetime)
     assert created_at.isoformat() == '2016-05-06T08:08:09.061258+01:00'
+
+
+def test_get_jobs(mock_get_jobs):
+    contact_list = ContactList({'id': 'a', 'service_id': 'b'})
+    assert isinstance(contact_list.get_jobs(page=123), PaginatedJobs)
+    mock_get_jobs.assert_called_once_with(
+        'b',
+        contact_list_id='a',
+        statuses={
+            'finished',
+            'sending limits exceeded',
+            'ready to send',
+            'sent to dvla',
+            'pending',
+            'in progress',
+        },
+        page=123,
+    )