Add step definitions for adding book to shopping cart from wish list

Similarly, we are going to modify "buy_book.rb" under "features/step_definations".

cd step_definations

Then edit it to contain following content:

And /^I login as "(.?)" with "(.?)"$/ do |username,password|
    loginAs(username,password)
end

And /^I add the first book to Wish List$/ do
    getCurrentItemTitle
    clickElementBy("id","add-to-wishlist-button-submit")
end
And /^I add the first book to shopping cart from Wish List$/ do
    clickElementBy("class","w-button-inner")
    addToShoppingCartFromWishList
end
And /^I open my shopping cart$/ do
    clickElementBy("id","nav-cart")
end
def loginAs (username,password)
    clickElementBy("id", "nav-signin-text")
    inputToElementWith("id", "ap_email", username)
    inputToElementWith("id", "ap_password", password)
    clickElementBy("id","signInSubmit-input")
end
def addToShoppingCartFromWishList
    clickElementBy("xpath", "//a[@class=\"a-button-text a-declarative\"]")
end
def inputToElementWith (type, value, input)
    inputElement=findElementBy(type, value)
    inputElement.clear
    inputElement.send_keys input
end