rails/actionpack/test/controller/flash_hash_test.rb

require 'abstract_unit'

module ActionDispatch
  class FlashHashTest < ActiveSupport::TestCase
    def setup
      @hash = Flash::FlashHash.new
    end

    def test_set_get
      @hash[:foo] = 'zomg'
      assert_equal 'zomg', @hash[:foo]
    end

    def test_keys
      assert_equal [], @hash.keys

      @hash['foo'] = 'zomg'
      assert_equal ['foo'], @hash.keys

      @hash['bar'] = 'zomg'
      assert_equal ['foo', 'bar'].sort, @hash.keys.sort
    end

    def test_update
      @hash['foo'] = 'bar'
      @hash.update('foo' => 'baz', 'hello' => 'world')

      assert_equal 'baz', @hash['foo']
      assert_equal 'world', @hash['hello']
    end

    def test_key
      @hash['foo'] = 'bar'

      assert @hash.key?('foo')
      assert @hash.key?(:foo)
      assert_not @hash.key?('bar')
      assert_not @hash.key?(:bar)
    end

    def test_delete
      @hash['foo'] = 'bar'
      @hash.delete 'foo'

      assert !@hash.key?('foo')
      assert_nil @hash['foo']
    end

    def test_to_hash
      @hash['foo'] = 'bar'
      assert_equal({'foo' => 'bar'}, @hash.to_hash)

      @hash.to_hash['zomg'] = 'aaron'
      assert !@hash.key?('zomg')
      assert_equal({'foo' => 'bar'}, @hash.to_hash)
    end

    def test_to_session_value
      @hash['foo'] = 'bar'
      assert_equal({'flashes' => {'foo' => 'bar'}}, @hash.to_session_value)

      @hash.now['qux'] = 1
      assert_equal({'flashes' => {'foo' => 'bar'}}, @hash.to_session_value)

      @hash.discard('foo')
      assert_equal(nil, @hash.to_session_value)

      @hash.sweep
      assert_equal(nil, @hash.to_session_value)
    end

    def test_from_session_value
      # {"session_id"=>"f8e1b8152ba7609c28bbb17ec9263ba7", "flash"=>#<ActionDispatch::Flash::FlashHash:0x00000000000000 @used=#<Set: {"farewell"}>, @closed=false, @flashes={"greeting"=>"Hello", "farewell"=>"Goodbye"}, @now=nil>}
      rails_3_2_cookie = 'BAh7B0kiD3Nlc3Npb25faWQGOgZFRkkiJWY4ZTFiODE1MmJhNzYwOWMyOGJiYjE3ZWM5MjYzYmE3BjsAVEkiCmZsYXNoBjsARm86JUFjdGlvbkRpc3BhdGNoOjpGbGFzaDo6Rmxhc2hIYXNoCToKQHVzZWRvOghTZXQGOgpAaGFzaHsGSSINZmFyZXdlbGwGOwBUVDoMQGNsb3NlZEY6DUBmbGFzaGVzewdJIg1ncmVldGluZwY7AFRJIgpIZWxsbwY7AFRJIg1mYXJld2VsbAY7AFRJIgxHb29kYnllBjsAVDoJQG5vdzA='
      session = Marshal.load(Base64.decode64(rails_3_2_cookie))
      hash = Flash::FlashHash.from_session_value(session['flash'])
      assert_equal({'greeting' => 'Hello'}, hash.to_hash)
      assert_equal(nil, hash.to_session_value)
    end

    def test_from_session_value_on_json_serializer
      decrypted_data = "{ \"session_id\":\"d98bdf6d129618fc2548c354c161cfb5\", \"flash\":{\"discard\":[\"farewell\"], \"flashes\":{\"greeting\":\"Hello\",\"farewell\":\"Goodbye\"}} }"
      session = ActionDispatch::Cookies::JsonSerializer.load(decrypted_data)
      hash = Flash::FlashHash.from_session_value(session['flash'])

      assert_equal({'greeting' => 'Hello'}, hash.to_hash)
      assert_equal(nil, hash.to_session_value)
      assert_equal "Hello", hash[:greeting]
      assert_equal "Hello", hash["greeting"]
    end

    def test_empty?
      assert @hash.empty?
      @hash['zomg'] = 'bears'
      assert !@hash.empty?
      @hash.clear
      assert @hash.empty?
    end

    def test_each
      @hash['hello'] = 'world'
      @hash['foo'] = 'bar'

      things = []
      @hash.each do |k,v|
        things << [k,v]
      end

      assert_equal([%w{ hello world }, %w{ foo bar }].sort, things.sort)
    end

    def test_replace
      @hash['hello'] = 'world'
      @hash.replace('omg' => 'aaron')
      assert_equal({'omg' => 'aaron'}, @hash.to_hash)
    end

    def test_discard_no_args
      @hash['hello'] = 'world'
      @hash.discard

      @hash.sweep
      assert_equal({}, @hash.to_hash)
    end

    def test_discard_one_arg
      @hash['hello'] = 'world'
      @hash['omg']   = 'world'
      @hash.discard 'hello'

      @hash.sweep
      assert_equal({'omg' => 'world'}, @hash.to_hash)
    end

    def test_keep_sweep
      @hash['hello'] = 'world'

      @hash.sweep
      assert_equal({'hello' => 'world'}, @hash.to_hash)
    end

    def test_update_sweep
      @hash['hello'] = 'world'
      @hash.update({'hi' => 'mom'})

      @hash.sweep
      assert_equal({'hello' => 'world', 'hi' => 'mom'}, @hash.to_hash)
    end

    def test_update_delete_sweep
      @hash['hello'] = 'world'
      @hash.delete 'hello'
      @hash.update({'hello' => 'mom'})

      @hash.sweep
      assert_equal({'hello' => 'mom'}, @hash.to_hash)
    end

    def test_delete_sweep
      @hash['hello'] = 'world'
      @hash['hi']    = 'mom'
      @hash.delete 'hi'

      @hash.sweep
      assert_equal({'hello' => 'world'}, @hash.to_hash)
    end

    def test_clear_sweep
      @hash['hello'] = 'world'
      @hash.clear

      @hash.sweep
      assert_equal({}, @hash.to_hash)
    end

    def test_replace_sweep
      @hash['hello'] = 'world'
      @hash.replace({'hi' => 'mom'})

      @hash.sweep
      assert_equal({'hi' => 'mom'}, @hash.to_hash)
    end

    def test_discard_then_add
      @hash['hello'] = 'world'
      @hash['omg']   = 'world'
      @hash.discard 'hello'
      @hash['hello'] = 'world'

      @hash.sweep
      assert_equal({'omg' => 'world', 'hello' => 'world'}, @hash.to_hash)
    end

    def test_keep_all_sweep
      @hash['hello'] = 'world'
      @hash['omg']   = 'world'
      @hash.discard 'hello'
      @hash.keep

      @hash.sweep
      assert_equal({'omg' => 'world', 'hello' => 'world'}, @hash.to_hash)
    end

    def test_double_sweep
      @hash['hello'] = 'world'
      @hash.sweep

      assert_equal({'hello' => 'world'}, @hash.to_hash)

      @hash.sweep
      assert_equal({}, @hash.to_hash)
    end
  end
end