Rails: String#pluralize

Documentation

Returns the plural form of the word in the string.

Examples

• "post".pluralize #=> "posts"
• "octopus".pluralize #=> "octopi"
• "sheep".pluralize #=> "sheep"
• "words".pluralize #=> "words"
• "the blue mailman".pluralize #=> "the blue mailmen"
• "CamelOctopus".pluralize #=> "CamelOctopi"

Usage
I generally use pluralize for creating nice messages for users. The pluralize method can also be helpful for metaprogramming when converting from a class name to a table name.

Test

require 'rubygems'
require 'active_support'
require 'test/unit'
require 'dust'

unit_tests do
  test "change singular word to plural word" do
    assert_equal "names", "name".pluralize
  end
end