 
         let constraint = constraints[1]
 
-        self.verify(constraint, firstView: self.mockView, firstAttribute: .Left, secondView: self.mockSuperview, secondAttribute: .Left, relation: .Equal, constant: 10.0)
+        self.verify(constraint, firstView: self.mockView, firstAttribute: .Leading, secondView: self.mockSuperview, secondAttribute: .Leading, relation: .Equal, constant: 10.0)
     }
     
     func testFillSuperview_CreatesBottomConstraint() {

        self.verify(constraint, firstView: self.mockView, firstAttribute: .Top, secondView: self.mockSuperview, secondAttribute: .Top, relation: .Equal, constant: 10.0)
    }
    
    func testFillSuperview_CreatesLeftConstraint() {
        
        // When



        let constraint = constraints[3]

        self.verify(constraint, firstView: self.mockView, firstAttribute: .Trailing, secondView: self.mockSuperview, secondAttribute: .Trailing, relation: .Equal, constant: -10.0)
    }


