Fix tests (#89)

* Fix dropdown menu step definition

* Fix ambiguous match

Author: blacksmith-welder

staff_features/digital_objects/step_definitions/digital_object_component_reorder.rb

@@ -82,10 +82,6 @@
   wait_for_ajax
 end
 
-Then 'the button has text {string}' do |text|
-  expect(page).to have_text text
-end
-
 Then 'the second Digital Object Component is pasted as a child of the Digital Object Component' do
   expect(page).to have_css "#digital_object_component_#{@digital_object_component_first_id}.indent-level-1"
   expect(page).to have_css "#digital_object_component_#{@digital_object_component_second_id}.indent-level-2"

staff_features/shared/step_definitions.rb

@@ -79,9 +79,9 @@
 end
 
 When 'the user clicks on {string} in the dropdown menu' do |string|
-  dropdown_menus = all('.dropdown-menu')
+  dropdown_menu = find('.dropdown-menu', match: :first)
 
-  within dropdown_menus.first do
+  within dropdown_menu do
     elements = dropdown_menu.all(:xpath, ".//*[contains(text(), '#{string}')]")
 
     elements.each do |element|