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TR-CIS-2004-01 (04/28/2004)
Yuetang Deng, Phyllis Frankl, Jiong Wang
Abstract
Commercial, scientific, and social activities are increasingly
becoming dependent on Web database applications.
New testing techniques that handle the unique features of
these systems are needed. To that end, we have extended
AGENDA, a tool set for testing relational database applications,
to test web database applications. Application source
code is analyzed to extract relevant information about the
URLs and their parameters. This information is used to
construct and simplify a graph in which nodes represent
URLs and edges represent links between URLs. A set of
paths through the graph is selected and test cases are generated
for each path. The extracted information about the
parameters to each URL (e.g., values that an application
user would enter into a form), is used to guide AGENDA
to generate inputs for the URLs. The URLs on a path and
their inputs are stored in an XML file, which is then automatically
executed. The current implementation is targeted
toward web applications written as Java Servlets and
uses an algorithm based on cyclomatic complexity to generate
paths. Preliminary empirically evaluation based on the
TPC-W benchmark is presented.