test assignment type
test assignment type

closes CNVS-38009

Test plan:
  * automated - makes an assignment type from an assignment
  * and checks that it works

Change-Id: I194e85021e5910846152b6ae33e58e6825621bae
Reviewed-on: https://gerrit.instructure.com/118153
Tested-by: Jenkins
Reviewed-by: Cameron Matheson <1d572acbfa68c7c6e541c7b840d6b622e5c0dc91@instructure.com>
QA-Review: Collin Parrish <aa381382ccdcc876f5cf7879d921ed03200f6804@instructure.com>
Product-Review: Collin Parrish <aa381382ccdcc876f5cf7879d921ed03200f6804@instructure.com>

instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,venturehive/canvas-lms,venturehive/canvas-lms,venturehive/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms