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require 'test/unit'
require File.dirname(__FILE__) + '/../lib/active_support/inflector' unless defined? Inflector

module Ace
  module Base
    class Case
    end
  end
end

class InflectorTest < Test::Unit::TestCase
  SingularToPlural = {
    "search" => "searches",
    "switch" => "switches",
    "fix" => "fixes",
    "box" => "boxes",
    "process" => "processes",
    "address" => "addresses",
    "case" => "cases",
    "stack" => "stacks",
    "wish" => "wishes",
    "fish" => "fish",

    "category" => "categories",
    "query" => "queries",
    "ability" => "abilities",
    "agency" => "agencies",
    "movie" => "movies",

    "archive" => "archives",

    "index" => "indices",

    "wife" => "wives",
    "safe" => "saves",
    "half" => "halves",

    "move" => "moves",

    "salesperson" => "salespeople",
    "person" => "people",

    "spokesman" => "spokesmen",
    "man" => "men",
    "woman" => "women",

    "basis" => "bases",
    "diagnosis" => "diagnoses",

    "datum" => "data",
    "medium" => "media",
    "analysis" => "analyses",

    "node_child" => "node_children",
    "child" => "children",

    "experience" => "experiences",
    "day" => "days",

    "comment" => "comments",
    "foobar" => "foobars",
    "newsletter" => "newsletters",

    "old_news" => "old_news",
    "news" => "news",
    
    "series" => "series",
    "species" => "species",

    "quiz" => "quizzes",

    "perspective" => "perspectives",
    
    "ox" => "oxen",
    "photo" => "photos",
    "buffalo" => "buffaloes",
    "tomato" => "tomatoes",
    "dwarf" => "dwarves",
    "elf" => "elves",
    "information" => "information",
    "equipment" => "equipment",
    "bus" => "buses",
    "status" => "statuses",
    "status_code" => "status_codes",
    "mouse" => "mice",

    "louse" => "lice",
    "house" => "houses",
    "octopus" => "octopi",
    "virus" => "viri",
    "alias" => "aliases",
    "portfolio" => "portfolios",
    
    "vertex" => "vertices",
    "matrix" => "matrices",
    
    "axis" => "axes",
    "testis" => "testes",
    "crisis" => "crises",
    
    "rice" => "rice",
    "shoe" => "shoes",
    
    "horse" => "horses",
    "prize" => "prizes",
    "edge" => "edges"
  }

  CamelToUnderscore = {
    "Product" => "product",
    "SpecialGuest" => "special_guest",
    "ApplicationController" => "application_controller",
    "Area51Controller" => "area51_controller"
  }

  UnderscoreToLowerCamel = {
    "product" => "product",
    "special_guest" => "specialGuest",
    "application_controller" => "applicationController",
    "area51_controller" => "area51Controller"
  }
  
  CamelToUnderscoreWithoutReverse = {
    "HTMLTidy" => "html_tidy",
    "HTMLTidyGenerator" => "html_tidy_generator",
    "FreeBSD" => "free_bsd",
    "HTML" => "html",
  }
  
  CamelWithModuleToUnderscoreWithSlash = {
    "Admin::Product" => "admin/product",
    "Users::Commission::Department" => "users/commission/department",
    "UsersSection::CommissionDepartment" => "users_section/commission_department",
  }

  ClassNameToForeignKeyWithUnderscore = {
    "Person" => "person_id",
    "MyApplication::Billing::Account" => "account_id"
  }

  ClassNameToForeignKeyWithoutUnderscore = {
    "Person" => "personid",
    "MyApplication::Billing::Account" => "accountid"
  }
  
  ClassNameToTableName = {
    "PrimarySpokesman" => "primary_spokesmen",
    "NodeChild" => "node_children"
  }
  
  UnderscoreToHuman = {
    "employee_salary" => "Employee salary",
    "employee_id" => "Employee",
    "underground" => "Underground"
  }

  MixtureToTitleCase = {
    'active_record' => 'Active Record',
    'ActiveRecord' => 'Active Record',
    'action web service' => 'Action Web Service',
    'Action Web Service' => 'Action Web Service',
    'Action web service' => 'Action Web Service',
    'actionwebservice' => 'Actionwebservice',
    'Actionwebservice' => 'Actionwebservice'
  }

  OrdinalNumbers = {
    "0" => "0th",
    "1" => "1st",
    "2" => "2nd",
    "3" => "3rd",
    "4" => "4th",
    "5" => "5th",
    "6" => "6th",
    "7" => "7th",
    "8" => "8th",
    "9" => "9th",
    "10" => "10th",
    "11" => "11th",
    "12" => "12th",
    "13" => "13th",
    "14" => "14th",
    "20" => "20th",
    "21" => "21st",
    "22" => "22nd",
    "23" => "23rd",
    "24" => "24th",
    "100" => "100th",
    "101" => "101st",
    "102" => "102nd",
    "103" => "103rd",
    "104" => "104th",
    "110" => "110th",
    "1000" => "1000th",
    "1001" => "1001st"
  }
  
  UnderscoresToDashes = {
    "street" => "street",
    "street_address" => "street-address",
    "person_street_address" => "person-street-address"
  }

  def test_pluralize_plurals
    assert_equal "plurals", Inflector.pluralize("plurals")
    assert_equal "Plurals", Inflector.pluralize("Plurals")
  end

  SingularToPlural.each do |singular, plural|
    define_method "test_pluralize_#{singular}" do
      assert_equal(plural, Inflector.pluralize(singular))
      assert_equal(plural.capitalize, Inflector.pluralize(singular.capitalize))
    end
  end

  SingularToPlural.each do |singular, plural|
    define_method "test_singularize_#{plural}" do
      assert_equal(singular, Inflector.singularize(plural))
      assert_equal(singular.capitalize, Inflector.singularize(plural.capitalize))
    end
  end

  MixtureToTitleCase.each do |before, title_cased|
    define_method 'test_titlecase' do
      assert_equal(title_cased, Inflector.titleize(before))
    end
  end

  def test_camelize
    CamelToUnderscore.each do |camel, underscore|
      assert_equal(camel, Inflector.camelize(underscore))
    end
  end

  def test_underscore
    CamelToUnderscore.each do |camel, underscore|
      assert_equal(underscore, Inflector.underscore(camel))
    end
    CamelToUnderscoreWithoutReverse.each do |camel, underscore|
      assert_equal(underscore, Inflector.underscore(camel))
    end
  end

  def test_camelize_with_module
    CamelWithModuleToUnderscoreWithSlash.each do |camel, underscore|
      assert_equal(camel, Inflector.camelize(underscore))
    end
  end
  
  def test_underscore_with_slashes
    CamelWithModuleToUnderscoreWithSlash.each do |camel, underscore|
      assert_equal(underscore, Inflector.underscore(camel))
    end
  end

  def test_demodulize
    assert_equal "Account", Inflector.demodulize("MyApplication::Billing::Account")
  end

  def test_foreign_key
    ClassNameToForeignKeyWithUnderscore.each do |klass, foreign_key|
      assert_equal(foreign_key, Inflector.foreign_key(klass))
    end

    ClassNameToForeignKeyWithoutUnderscore.each do |klass, foreign_key|
      assert_equal(foreign_key, Inflector.foreign_key(klass, false))
    end
  end

  def test_tableize
    ClassNameToTableName.each do |class_name, table_name|
      assert_equal(table_name, Inflector.tableize(class_name))
    end
  end

  def test_classify
    ClassNameToTableName.each do |class_name, table_name|
      assert_equal(class_name, Inflector.classify(table_name))
    end
  end

  def test_classify_with_symbol
    assert_nothing_raised do
      assert_equal 'FooBar', Inflector.classify(:foo_bar)
    end
  end
  
  def test_humanize
    UnderscoreToHuman.each do |underscore, human|
      assert_equal(human, Inflector.humanize(underscore))
    end
  end
  
  def test_constantize
    assert_equal Ace::Base::Case, Inflector.constantize("Ace::Base::Case")
    assert_equal Ace::Base::Case, Inflector.constantize("::Ace::Base::Case")
    assert_equal InflectorTest, Inflector.constantize("InflectorTest")
    assert_equal InflectorTest, Inflector.constantize("::InflectorTest")
    assert_raises(NameError) { Inflector.constantize("UnknownClass") }
    assert_raises(NameError) { Inflector.constantize("An invalid string") }
  end
  
  def test_constantize_doesnt_look_in_parent
    assert_raises(NameError) { Inflector.constantize("Ace::Base::InflectorTest") }
  end

  def test_ordinal
    OrdinalNumbers.each do |number, ordinalized|
      assert_equal(ordinalized, Inflector.ordinalize(number))
    end
  end

  def test_dasherize
    UnderscoresToDashes.each do |underscored, dasherized|
      assert_equal(dasherized, Inflector.dasherize(underscored))
    end
  end

  def test_underscore_as_reverse_of_dasherize
    UnderscoresToDashes.each do |underscored, dasherized|
      assert_equal(underscored, Inflector.underscore(Inflector.dasherize(underscored)))
    end
  end

  def test_underscore_to_lower_camel
    UnderscoreToLowerCamel.each do |underscored, lower_camel|
      assert_equal(lower_camel, Inflector.camelize(underscored, false))
    end
  end
end
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