Add ability for triggers to be disabled

Will be used in the followup commit to automatically disable broken triggers

endpoints/api/test/test_trigger.py

@@ -1,6 +1,12 @@
 import pytest
+import json
 
+from data import model
 from endpoints.api.trigger_analyzer import is_parent
+from endpoints.api.trigger import BuildTrigger
+from endpoints.api.test.shared import conduct_api_call
+from endpoints.test.shared import client_with_identity
+from test.fixtures import *
 
 
 @pytest.mark.parametrize('context,dockerfile_path,expected', [
@@ -20,3 +26,30 @@ from endpoints.api.trigger_analyzer import is_parent
 ])
 def test_super_user_build_endpoints(context, dockerfile_path, expected):
   assert is_parent(context, dockerfile_path) == expected
+
+
+def test_enabled_disabled_trigger(app, client):
+  trigger = model.build.list_build_triggers('devtable', 'building')[0]
+  trigger.config = json.dumps({'hook_id': 'someid'})
+  trigger.save()
+
+  params = {
+    'repository': 'devtable/building',
+    'trigger_uuid': trigger.uuid,
+  }
+
+  body = {
+    'enabled': False,
+  }
+
+  with client_with_identity('devtable', client) as cl:
+    result = conduct_api_call(cl, BuildTrigger, 'PUT', params, body, 200).json
+    assert not result['enabled']
+
+  body = {
+    'enabled': True,
+  }
+
+  with client_with_identity('devtable', client) as cl:
+    result = conduct_api_call(cl, BuildTrigger, 'PUT', params, body, 200).json
+    assert result['enabled']