Placeholder jQuery Plugin Spec in CoffeeScript

placeholder.spec.coffee

# Ported from Josh Bush's example at http://digitalbush.com/2011/03/29/testing-jquery-plugins-with-node-js-and-jasmine/

describe "Given a jquery.placeholder with", ->
  input = undefined
  describe "no value", ->
    before -> input = $("<input />").appendTo("body").placeholder "foo"

    describe "when calling placeholder plugin", ->
      expectThat -> input.val().should equal "foo"

    describe "when focusing input without user value", ->
      before -> input.focus()
      expectThat -> input.val().should equal ""

    describe "when leaving input without user value", ->
      before -> input.focus().blur()
      expectThat -> input.val().should equal "foo"

  describe "a user supplied value", ->
    before -> input = $("<input />").appendTo("body").val("bacon").placeholder "foo"

    describe "when calling placeholder plugin", ->
      expectThat -> input.val().should equal "bacon"

    describe "when focusing input with user value", ->
      before -> input.focus()
      expectThat -> input.val().should equal "bacon"

    describe "when leaving input without user value", ->
      before -> input.focus().blur()
      expectThat -> input.val().should equal "bacon"