       ["b", error()])
   describe "works with synchronous source", ->
     expectStreamEvents(
-      -> Bacon.fromArray([1, 2, 3]).toProperty(0).changes()
+      -> fromArray([1, 2, 3]).toProperty(0).changes()
       [1, 2, 3])
 
 describe "Property.combine", ->

    )
  describe "has no effect on values", ->
    expectStreamEvents(
      -> Bacon.fromArray([1, 2]).flatMapError(-> Bacon.once("omg"))
      [1, 2])
  it "toString", ->
    expect(Bacon.once(1).flatMapError(->).toString()).to.equal("Bacon.once(1).flatMapError(function)")

  describe "works with synchronous source", ->
    expectPropertyEvents(
      ->
        left = fromArray([1, 2, 3]).toProperty()
        left.startWith('pow')
      ['pow', 1, 2, 3], unstable)
  describe "starts with the initial value of the Property if any", ->
