Also run TestCase.setUp
Also set up config for the collection tests
Naming consistency: create_webhook*s*
test_get_webhook_for_nonexistant_scaling_group
test_get_webhook_for_nonexistant_policy
test_get_webhook_for_nonexistant_webhook
test_get_webhook_happy_case
Fix some bugs in the test
Make the tests pass
Refactor