A lot :)

test/controllers/elements_controller_test.rb

@@ -1,4 +1,6 @@
-require 'test_helper'
+# frozen_string_literal: true
+
+require "test_helper"
 
 class ElementsControllerTest < ActionDispatch::IntegrationTest
   setup do
@@ -6,18 +8,18 @@ class ElementsControllerTest < ActionDispatch::IntegrationTest
     @checklist = checklists(:one)
   end
 
-  test 'should get index' do
+  test "should get index" do
     get elements_url
     assert_response :success
   end
 
-  test 'should get new' do
+  test "should get new" do
     get new_element_url
     assert_response :success
   end
 
-  test 'should create element' do
-    assert_difference('Element.count') do
+  test "should create element" do
+    assert_difference("Element.count") do
       post elements_url,
            params: { element: { description_html: @element.description_html, path: @element.path, report_id: @element.report_id,
                                 title: @element.title, checklist_id: @checklist.id } }
@@ -26,25 +28,25 @@ class ElementsControllerTest < ActionDispatch::IntegrationTest
     assert_redirected_to report_url(Element.last.report)
   end
 
-  test 'should show element' do
+  test "should show element" do
     get element_url(@element)
     assert_response :success
   end
 
-  test 'should get edit' do
+  test "should get edit" do
     get edit_element_url(@element)
     assert_response :success
   end
 
-  test 'should update element' do
+  test "should update element" do
     patch element_url(@element),
           params: { element: { description_html: @element.description_html, path: @element.path, report_id: @element.report_id,
                                title: @element.title } }
     assert_redirected_to element_url(@element)
   end
 
-  test 'should destroy element' do
-    assert_difference('Element.count', -1) do
+  test "should destroy element" do
+    assert_difference("Element.count", -1) do
       delete element_url(@element)
     end