Refactoring tests to make them more robust

Fixed typo in feature description.
Merged two background steps since the last one did not have any actions
that could be done manually.
Removed assertions from a "given" (login) step. We already extensively
test logging in. If this extension needs login tests, they should go to
a separate feature file.
Moved methods from steps file to page file, following page object
pattern.

Change-Id: Ic5250970362718f5ed887c9ac8fd56948724b210

tests/browser/features/step_definitions/common_steps.rb

@@ -7,55 +7,25 @@ end
 
 Given(/^I am logged in$/) do
 	visit(LoginPage).login_with(ENV['MEDIAWIKI_USER'], ENV['MEDIAWIKI_PASSWORD'])
-	# Assert that login worked
-	loggedin = !@browser.execute_script( "return mw.user.isAnon();" )
-	loggedin.should be_true
 end
 
 Given(/^I set "(.*?)" as the interface language$/) do |language|
-	code = language_to_code(language)
+	code = on(PanelPage).language_to_code(language)
 	visit(PanelPage, :using_params => {:extra => "setlang=#{code}"})
+	@original_content_font = on(PanelPage).get_content_font
+	@original_interface_font = on(PanelPage).get_interface_font
 end
 
 Given(/^I temporarily use "(.*?)" as the interface language$/) do |language|
-	code = language_to_code(language)
+	code = on(PanelPage).language_to_code(language)
 	visit(PanelPage, :using_params => {:extra => "uselang=#{code}"})
 end
 
 Then(/^my interface language is "(.*?)"$/) do |language|
-	code = language_to_code(language)
+	code = on(PanelPage).language_to_code(language)
 	on(PanelPage).interface_element.attribute('lang').should == code
 end
 
-def language_to_code(language)
-	case language
-	when 'German'
-		'de'
-	when 'English'
-		'en'
-	when 'Finnish'
-		'fi'
-	when 'Hebrew'
-		'he'
-	when 'Hindi'
-		'hi'
-	else
-		pending
-	end
-end
-
-def get_font(selector)
-	@browser.execute_script( "return $( '#{selector}' ).css( 'font-family' );" )
-end
-
-def get_content_font()
-	get_font('#mw-content-text')
-end
-
-def get_interface_font()
-	get_font('body')
-end
-
 def uls_position()
 	if !defined?($uls_position)
 		visit(PanelPage)

tests/browser/features/step_definitions/panel_steps.rb

@@ -2,11 +2,6 @@ Then(/^I see "(.*?)" as the name of the content language$/) do |text|
 	@browser.span(:text => "#{text}").should be_visible
 end
 
-Given(/^I inspect current fonts$/) do
-	@original_content_font = get_content_font()
-	@original_interface_font = get_interface_font()
-end
-
 When(/^I open "(.*?)" panel of language settings$/) do |panel|
 	on(PanelPage) do |page|
 		# Open the ULS panel if it's not open already
@@ -58,9 +53,9 @@ end
 Then(/^the active (.*?) font must be the same as font prior to the preview$/) do |type|
 	case type
 	when "content"
-		get_content_font().should === @original_content_font
+		on(PanelPage).get_content_font.should === @original_content_font
 	when "interface"
-		get_interface_font().should === @original_interface_font
+		on(PanelPage).get_interface_font.should === @original_interface_font
 	else
 		pending
 	end
@@ -86,9 +81,9 @@ end
 Then(/^the (.*) font must be changed to the "(.*?)" font$/) do |type, font|
 	case type
 	when "content"
-		get_content_font().should match("^#{font}")
+		on(PanelPage).get_content_font.should match("^#{font}")
 	when "interface"
-		get_interface_font().should match("^#{font}")
+		on(PanelPage).get_interface_font.should match("^#{font}")
 	else
 		pending
 	end
@@ -111,7 +106,7 @@ Then(/^a font selector for content language appears$/) do
 end
 
 When(/^I use the panel to change my interface language to "(.*?)"$/) do |language|
-	code = language_to_code(language)
+	code = on(PanelPage).language_to_code(language)
 	on(RandomPage).language_filter = code
 	# Because one browser wants :enter and other :return -- sigh
 	on(RandomPage).language_filter_element.send_keys [:enter, "\n"]

tests/browser/features/step_definitions/persistent_steps.rb

@@ -34,6 +34,6 @@ And(/^I click on the link to select Hindi$/) do
 end
 
 Then(/^I should see the text in the language panel in (.+?)$/) do |language|
-	code = language_to_code(language)
+	code = on(PanelPage).language_to_code(language)
 	on(PanelPage).uls_display_settings_element.attribute('lang').should == code
 end