Array as parameter in ruby

Question

Iam trying to get list of everything that failed.ie catch error message if any one of the id is not found.Follwoing is a capybara automation script.

In the following code exception handling is working fine!

  puts "Verifying Home Page"
      def verifyHomepage(id, successMsg, errorMsg)
       begin   
        page.find(id)
        puts successMsg
       rescue
        puts errorMsg
       end
    end

   verifyHomepage("#logoAnchor", "logo anchor found", "Logo anchor not Found")
   verifyHomepage(".navbar-inner", "Header Bar found", "Header Bar  not Found")
   verifyHomepage(".unstyled", "All Occasions Frame found", "All Occasions Frame not Found")
   verifyHomepage("##easyPrintPromoBox", "Easy Print Frame", "Easy Print Frame not Found")
   verifyHomepage(".tabbable", "l3 Tabs  Featured Occasions/Pairings/ArtistEasy Print Frame", "3 Tabs  Featured Occasions/Pairings/ArtistEasy Print Frame Not found")
   verifyHomepage("##givingCardPromoBox", "Create the perfect gift found", "Create the perfect gift not Found")
   verifyHomepage(".footerr", "Footer Frame found", "Footer Frame found not Found")

Here iam repeatedly calling verifyHomePage method 7 times using different param values.

How is it possbile to pass the 3 params as array values instead of string values.what i meant is eg:

 verifyHomepage(idArray[],successMsg[],errorMsg[])

you don't specify the argument types in a function declaration, and if you want to pass a one-element array, that would be [sth] — John Dvorak
– John Dvorak, Commented May 16, 2013 at 4:50

Puhlze · Accepted Answer · 2013-05-16 04:49:39Z

2

You can make use of the splat operator to pass in a variable number of arguments to your method, and each argument can be a 3-element array.

def verifyHomepage(*args)
  args.each do |a|
    id = a[0]
    successMsg = a[1]
    errorMsg = a[2]
    # process args
  end
end

verifyHomepage(['.footerr', 'Footer Frame found', 'Footer Frame not found'], ['#giving', 'Create the perfect gift', 'not found'])

answered May 16, 2013 at 4:49

Puhlze

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Comments

Darshan Rivka Whittle · Accepted Answer · 2013-05-16 05:07:00Z

What you suggest:

verifyHomepage(idArray[],successMsg[],errorMsg[])

is possible, but then you're maintaining three arrays that need to be kept in sync. An Array of Hashes is a much cleaner approach:

def verifyHomepage(items)
  items.each do |item|
    begin
      page.find(item[:selector])
      puts item[:successMsg]
    rescue
      puts item[:errorMsg]
    end
  end
end

items = [{ :selector => "#logoAnchor",
           :successMsg => "logo anchor found",
           :errorMsg => "Logo anchor not Found"},
         { :selector => ".navbar-inner",
           :successMsg => "Header Bar found",
           :errorMsg => "Header Bar  not Found"},
         { :selector => ".unstyled",
           :successMsg => "All Occasions Frame found",
           :errorMsg => "All Occasions Frame not Found"},
         { :selector => "##easyPrintPromoBox",
           :successMsg => "Easy Print Frame",
           :errorMsg => "Easy Print Frame not Found"},
         { :selector => ".tabbable",
           :successMsg => "l3 Tabs  Featured Occasions/Pairings/ArtistEasy Print Frame",
           :errorMsg => "3 Tabs  Featured Occasions/Pairings/ArtistEasy Print Frame Not found"},
         { :selector => "##givingCardPromoBox",
           :successMsg => "Create the perfect gift found",
           :errorMsg => "Create the perfect gift not Found"},
         { :selector => ".footerr",
           :successMsg => "Footer Frame found",
           :errorMsg => "Footer Frame found not Found"}]

puts "Verifying Home Page"
verifyHomepage(items)

and now for the bonus question, what is the most elegant way to accept a single item as well as an array of items without obliging the caller to wrap their item in [].

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