Prefer double-quoted strings in Ruby code

Bug: 57597
Change-Id: I12b96411abe255130e156e20fa41eef558460196

tests/browser/features/support/modules/interlanguage_module.rb

@@ -4,20 +4,20 @@ require "page-object"
 module InterlanguagePageModule
   include PageObject
 
-  a(:add_links, id: 'wbc-linkToItem-link')
-  a(:back_to_display, text: 'Back to display settings')
-  a(:back_to_input, text: 'Back to input settings')
-  span(:cog, class: 'uls-settings-trigger')
-  button(:ellipsis_button, class: 'uls-more-languages button')
-  a(:english_link, text: 'English')
-  a(:hindi_link, text: 'हिन्दी')
-  div(:input_settings, id: 'input-settings-block')
-  div(:language_list, class: 'row uls-language-list lcd')
-  text_field(:language_search, id: 'languagefilter')
-  button(:non_default_language, class: 'button uls-language-button', index: 1)
-  a(:talk, text: 'Discussion')
-  span(:x, id: 'languagesettings-close')
-  a(:how_to_use_ml_transliteration, href: 'https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Extension:UniversalLanguageSelector/Input_methods/ml-transliteration')
-  a(:edit_link, css: '#ca-edit a')
-  a(:interlang_link, css: '#p-lang li.interlanguage-link')
+  a(:add_links, id: "wbc-linkToItem-link")
+  a(:back_to_display, text: "Back to display settings")
+  a(:back_to_input, text: "Back to input settings")
+  span(:cog, class: "uls-settings-trigger")
+  button(:ellipsis_button, class: "uls-more-languages button")
+  a(:english_link, text: "English")
+  a(:hindi_link, text: "हिन्दी")
+  div(:input_settings, id: "input-settings-block")
+  div(:language_list, class: "row uls-language-list lcd")
+  text_field(:language_search, id: "languagefilter")
+  button(:non_default_language, class: "button uls-language-button", index: 1)
+  a(:talk, text: "Discussion")
+  span(:x, id: "languagesettings-close")
+  a(:how_to_use_ml_transliteration, href: "https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Extension:UniversalLanguageSelector/Input_methods/ml-transliteration")
+  a(:edit_link, css: "#ca-edit a")
+  a(:interlang_link, css: "#p-lang ul")
 end

tests/browser/features/support/modules/language_module.rb

@@ -3,16 +3,16 @@ module LanguageModule
 
 	def language_to_code(language)
 		case language
-			when 'German'
-				'de'
-			when 'English'
-				'en'
-			when 'Finnish'
-				'fi'
-			when 'Hebrew'
-				'he'
-			when 'Hindi'
-				'hi'
+			when "German"
+				"de"
+			when "English"
+				"en"
+			when "Finnish"
+				"fi"
+			when "Hebrew"
+				"he"
+			when "Hindi"
+				"hi"
 			else
 				pending
 		end

tests/browser/features/support/modules/url_module.rb

@@ -1,9 +1,9 @@
 module URL
   def self.url(name)
-    if ENV['MEDIAWIKI_URL']
-      mediawiki_url = ENV['MEDIAWIKI_URL']
+    if ENV["MEDIAWIKI_URL"]
+      mediawiki_url = ENV["MEDIAWIKI_URL"]
     else
-      mediawiki_url = 'http://en.wikipedia.beta.wmflabs.org/wiki/'
+      mediawiki_url = "http://en.wikipedia.beta.wmflabs.org/wiki/"
     end
     "#{mediawiki_url}#{name}"
   end