Improvement of the Baseline Method in Structural Testing

An algorithm based on the generation for baseline path is proposed in this paper. Making use of it, the original baseline path can be generated randomly and automatically. In respect of traversing the basic path group, the algorithm in- troduces the method of depth-first search to avoid storing more information of branch node and decrease the time of linear traversal. Using the column with S-node with no in-degree and the row with E-node with no out-degree, the case of nodes' value and the number of value cases are stored for reducing the waste in storage. Furthermore, giving priority to the behind path-node when generating a path, the time of judgment for loops is effectively reduced. Theoretical analysis and experimental results show that this new algorithm has an advantage over the original Baseline Method in efficiency and space complexity of the test path generation. The average space complexity is decreased from O(n) to O(log n) , and the time complexity is also reduced to a certain extent.