Include quiz_type in the RCS quizzes api response

this will facilitate showing the correct icon in the RCE

closes: MAT-954
flag=none

test plan:
  - hit the RCS' /api/quizzes?contextType=course&contextId=:course_id
    api
    - or open the course links tray in the RCE and expand the
      quizzes panel in the tray
  > expect to see quiz_type in each quiz's entry in the response

Change-Id: If6dbfa1da44bfc83b0707cf5d75c4981dc9b248c
Reviewed-on: https://gerrit.instructure.com/c/canvas-rce-api/+/298825
Tested-by: Service Cloud Jenkins <[email protected]>
Reviewed-by: Mysti Lilla <[email protected]>
QA-Review: Mysti Lilla <[email protected]>
Product-Review: Jon Scheiding <[email protected]>

Author: eschiebel

app/api/quizzes.js

@@ -26,7 +26,8 @@ const canvasResponseHandler = linksResponseHandler((request, results) => {
       title: quiz.title,
       published: quiz.published,
       date,
-      date_type: "due"
+      date_type: "due",
+      quiz_type: quiz.quiz_type
     };
   });
 });

test/service/api/quizzes.test.js

@@ -64,6 +64,7 @@ describe("Quizzes API", () => {
             published: true,
             all_dates: [{ due_at: "2019-04-22T13:00:00Z" }],
             due_at: "2019-04-22T13:00:00Z",
+            quiz_type: "assignment",
             ...overrides
           }
         ]
@@ -108,5 +109,10 @@ describe("Quizzes API", () => {
       assert.equal(result.links[0].date, "multiple");
       assert.equal(result.links[0].date_type, "due");
     });
+
+    it("pulls the quiz_type from canvas' response", () => {
+      const [result, canvasResponse] = setup();
+      assert.equal(result.links[0].quiz_type, canvasResponse.body[0].quiz_type);
+    });
   });
 });