def newGrandChild = Mock(FileSystemNode)

        when:
        def resultRoot = initialRoot.store(searchedPath, CASE_SENSITIVE, snapshot, diffListener)
        AbstractIncompleteFileSystemNode newChild = getNodeWithIndexOfSelectedChild(resultRoot.children) as AbstractIncompleteFileSystemNode
        then:
        resultRoot.children == childrenWithSelectedChildReplacedBy(commonPrefix, newChild)
        newChild.children == sortedChildren(

        def newEntries = childEntries()
        newEntries.remove(indexOfSelectedChild)
        return ChildMapFactory.childMapFromSorted(newEntries)
    }

    CHILD getNodeWithIndexOfSelectedChild(ChildMap<CHILD> newChildren) {
        int index = indexOfSelectedChild
        return childEntries(newChildren).get(index).value
    }

    String getCommonPrefix() {