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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({ "discard" => [], "flashes" => { "foo" => "bar" } }, @hash.to_session_value)

      @hash.now["qux"] = 1
      assert_equal({ "flashes" => { "foo" => "bar" }, "discard" => [] }, @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