If a mock's assert_called_once_with method is misspelled (e.g. asert_called_once_with) then the test will appear as passing. Therefore, this commit removes all instances of assert_called_once_with calls and replaces them with two assertions:
self.assertEqual(mock.call_count, 1)
self.assertEqual(mock.call_args, mock.call(call_args))
This also fixes issue #1214, and I think another bug. The splunk
code will just take the value of state.state and try to serialize
it to json if it can't make it into a number. It did this before
I generalized that code. Since json.dumps() will fail on most anything
complicated, I think the right thing to do is *not* try to do that.
