Automated test input generation for web applications
US8302080B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2008 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Aug 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F8/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus is disclosed herein for automated test input generation for web applications. In one embodiment, the method comprises performing a source-to-source transformation of the program; performing interpretation on the program based on a set of test input values; symbolically executing the program; recording a symbolic constraint for each of one or more conditional expressions encountered during execution of the program, including analyzing a string operation in the program to identify one or more possible execution paths, and generating symbolic inputs representing values of variables in each of the conditional expressions as a numeric expression and a string constraint including generating constraints on string values by modeling string operations using finite state transducers (FSTs) and supplying values from the program's execution in place of intractable sub-expressions; and generating new inputs to drive the program during a subsequent iteration based on results of solving the recorded string constraints.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.