One of the important tasks during software testing is the generation of appropriate test data. Various techniques have been proposed to automate this task. The techniques available, however, often have problems limiting their use. In the case of dynamic test data generation techniques, a frequent problem is that a large number of iterations might be necessary to obtain test data. This article proposes a novel technique for automated test data generation based on binary search. Binary search conducts searching tasks in logarithmic time, as long as its assumptions are fulfilled. This article shows that these assumptions can also be fulfilled in the case of path-oriented test data generation and presents a technique which can be used to generate test data covering certain paths in class methods.

Labor mobility in the rural area of Mainland China plays recently an important role in its economic development process. And this enormous and inexpensive labor attracts foreign investments, including Taiwanese investment, to enter Mainland China¡¦s market, and, further, drives economic development of Asia-Pacific Region. However, from the viewpoint of Rural-Urban Dualism theory, on the social level, rural labors can not take part in political life, and preserve their rights. Thus, they become ¡§Silent Class¡¨ in the Chinese urban society. On the economic level, serious public security problems derivative from labor disputes and conflicts, and it attracts highly concerns of Central of Chinese Communist Party (CCP), and issues ¡§Constructing Harmonious Community and Well-Off Society¡¨; and on the social level, continued expanding poverty gap, social rejection, and prejudice cause deep impact on those labors. This studying focus on the changing steps of supply and demand of rural labor, in order to discuss the developmental trend of transferring process of rural labor form past to present, even to the future. Therefore, this essay concentrates on the changing mobility of rural labor in some aspects, for example regions, identifications, careers, and life forms, and political, social economic, cultural, policy/urbanization, and market/occupation connections between rural and urban area. The Result of studying is, Central of CCP has 3 ways to solve problems beneath the surface of rural labor and urbanization: 1. Accelerating transferring process of rural surplus labor with economic development strategy; 2. Upgrading skill standard of rural labor, to guarantee employment; 3. Promoting and enlarging domestic consume, to constrain inflation. At the same time, the capability of labor unions should be reinforced and the organized degree of rural labor should be improved. Hoping that, they are able to play a more active role to protect rights of rural labors.

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