Fixed failing rspec tests for helpers

spec/helpers/snippets_helper_spec.rb

@@ -32,7 +32,7 @@ RSpec.describe SnippetsHelper do
     end
 
     def download_link(url)
-      "<a class=\"btn\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Open raw\" href=\"#{url}\">#{external_snippet_icon('doc-code')}</a>"
+      "<a class=\"gl-button btn btn-default\" target=\"_blank\" rel=\"noopener noreferrer\" title=\"Open raw\" href=\"#{url}\">#{external_snippet_icon('doc-code')}</a>"
     end
   end
 
@@ -59,7 +59,7 @@ RSpec.describe SnippetsHelper do
     end
 
     def download_link(url)
-      "<a class=\"btn\" target=\"_blank\" title=\"Download\" rel=\"noopener noreferrer\" href=\"#{url}?inline=false\">#{external_snippet_icon('download')}</a>"
+      "<a class=\"gl-button btn btn-default\" target=\"_blank\" title=\"Download\" rel=\"noopener noreferrer\" href=\"#{url}?inline=false\">#{external_snippet_icon('download')}</a>"
     end
   end
 
@@ -83,7 +83,7 @@ RSpec.describe SnippetsHelper do
     end
 
     def download_link(url)
-      "<a target=\"_blank\" rel=\"noopener noreferrer\" class=\"btn btn-sm has-tooltip\" title=\"Download\" data-container=\"body\" href=\"#{url}?inline=false\">#{sprite_icon('download')}</a>"
+      "<a target=\"_blank\" rel=\"noopener noreferrer\" class=\"gl-button btn btn-default btn-sm has-tooltip\" title=\"Download\" data-container=\"body\" href=\"#{url}?inline=false\">#{sprite_icon('download')}</a>"
     end
   end
 

spec/helpers/wiki_helper_spec.rb

@@ -76,7 +76,7 @@ RSpec.describe WikiHelper do
   describe '#wiki_sort_controls' do
     let(:wiki) { create(:project_wiki) }
     let(:wiki_link) { helper.wiki_sort_controls(wiki, sort, direction) }
-    let(:classes) { "btn btn-default has-tooltip reverse-sort-btn qa-reverse-sort rspec-reverse-sort" }
+    let(:classes) { "gl-button btn btn-default has-tooltip reverse-sort-btn qa-reverse-sort rspec-reverse-sort" }
 
     def expected_link(sort, direction, icon_class)
       path = "/#{wiki.project.full_path}/-/wikis/pages?direction=#{direction}&sort=#{sort}"