     }
     
     func testReplaceAllSectionsRemovesAllPreviousOperations() {
-        
-        var changeSet = CollectionChangeSet()
         
         changeSet.insertSectionAtIndex(1)
         changeSet.insertSectionAtIndex(2)

    
    func testReplaceItemsInSection() {
        
        var changeSet = CollectionChangeSet()
        
        changeSet.replaceItemsInSection(0)
        
        let operations = changeSet.sectionsOperations
        
        XCTAssert(operations[0] != nil, "Should insert a new set at index 0")
        XCTAssertEqual(operations[0]?.contains(.Reset), true, "Should contain the reset operation")
    }
}

    
    func testRemoveSectionAtIndex() {
        
        changeSet.removeSectionAtIndex(2)
        
        let operations = changeSet.collectionOperations
