Abstract: The present application discloses a glass fiber sizing composition. The glass fiber sizing composition comprises effective components and water, and has a solid content of 4.0% to 6.0%; and the effective components comprise a silane coupling agent, a film former, a lubricant, a surfactant, a leveling agent, an interfacial reinforcing agent, a wetting agent, a defoaming agent, and a pH regulator. A glass fiber produced by the sizing composition has desirable strand integrity properties, softness and high dispersibility after a certain tension; the glass fiber also has high permeation velocity and complete permeation effect in the epoxy resin. The glass fiber shows excellent interfacial compatibility with the resin, and is suitable for weaving technology, especially for producing a heavy wind blade fabric. A composite formed by vacuum infusion of the fabric and the epoxy resin has desirable static mechanics and fatigue properties.

Abstract: The present invention provides a unit testing method based on automatic generation of path coverage test cases. First, obtain a control flow graph of a program to be tested is obtained. Then, an executable code is executed in the generated control flow graph based on of an automatically generated test case, and meanwhile, a fitness value is calculated and acquired based on of an execution result of the executable code, and a sub-node is selected to continue repeating the above process, until a terminal node in the control flow graph is found, and finally a path marker is generated and the fitness value corresponding to the path is obtained. Then, an automatic test case generation algorithm is executed, and the algorithm constantly automatically generates test cases based on of the returned fitness value, and exits when the path is completely covered, or a set execution is timed out.

Abstract: The present invention provides a unit testing method based on automatic generation of path coverage test cases. First, obtain a control flow graph of a program to be tested is obtained. Then, an executable code is executed in the generated control flow graph based on of an automatically generated test case, and meanwhile, a fitness value is calculated and acquired based on of an execution result of the executable code, and a sub-node is selected to continue repeating the above process, until a terminal node in the control flow graph is found, and finally a path marker is generated and the fitness value corresponding to the path is obtained. Then, an automatic test case generation algorithm is executed, and the algorithm constantly automatically generates test cases based on of the returned fitness value, and exits when the path is completely covered, or a set execution is timed out.