Coolest Code I've Ever Written

Because Scala lets you name methods pretty much whatever you want, I got the chain wires together like this:

 @Test
 def lastPowerSourceInChainShouldBeNotifiedWhenFirstInChainIsTurnedOff() = {
   //given
   val first = new Generator
   val secondToLast = new Wire
  
   first-->new Wire-->new Wire-->new Wire-->secondToLast
  
   val last = createMockWithConnectionTo(secondToLast)
  
   // when
   first.turnOff
  
   // then
   verify(Array(last))
 }

 private def createMockWithConnectionTo( p: PowerSource ): PowerSource = {
   val mockPowerSource: PowerSource = createStrictMock(classOf[PowerSource]).asInstanceOf[PowerSource];
   expect( mockPowerSource <-- p ).andReturn( p )     expect( mockPowerSource.handleStateChanged( p ) )     replay(Array(mockPowerSource))     p --> mockPowerSource
   mockPowerSource
 }

The -->'s are actually methods on any PowerSource that connects the two together. So, the code can actually look like a chain of wires connected together. This is totally the coolest thing ever.