}
        this
    }

    def hasDescendantsInOrder(String... relativePaths) {
        def expectedOrder = CollectionUtils.toList(relativePaths)
        def actualOrder = CollectionUtils.toList(filesByRelativePath.keySet())
        assertEquals(actualOrder, expectedOrder)
        this
    }

    def containsDescendants(String... relativePaths) {
        for (String path : relativePaths) {

            search.addAll(operation.children)
            operation = search.poll()
        }
    }

    void orderedSerialSiblings(BuildOperationRecord... expectedOrder) {
        def expectedOrderList = expectedOrder.toList()
        assert expectedOrder*.parentId.unique().size() == 1
        def startTimeOrdered = expectedOrderList.sort(false) { it.startTime }
        assert expectedOrderList == startTimeOrdered