Fixed weird spec sign_in issues, and render json

spec/controllers/api/bikes_controller_spec.rb

@@ -42,7 +42,7 @@ describe Api::V1::BikesController do
 
       context "with valid bike in json data" do
         before(:each) do
-          @submit_json = { bikes: [{
+          bike_data = { bikes: [{
             serial_number: "XKCD",
             bike_brand_id: 1,
             shop_id: 1,
@@ -53,6 +53,10 @@ describe Api::V1::BikesController do
             bike_purpose_id: 1,
             bike_wheel_size_id: 1,
           }]}
+          #this is necessary because render_views does not work with sign_in devise helper
+          @submit_json = api_submit_json(@user, bike_data)
+          #not sure why format: :json not working
+          request.accept = 'application/json'
         end
 
         it "returns 200" do
@@ -63,8 +67,8 @@ describe Api::V1::BikesController do
         it "returns the created bike json" do
           post :create, @submit_json
           json = JSON.parse(@response.body)
-          expect(json).to have_key("bike")
+          expect(json).to have_key("bikes")
-          expect(json.to_s).to include(@submit_json[:bike][:serial_number])
+          expect(json.to_s).to include(@submit_json[:bikes].first[:serial_number])
         end
       end