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Durham e-Theses
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The construction of oracles for software testing

Zhang, Xiaodong (1993) The construction of oracles for software testing. Masters thesis, Durham University.



Software testing is important throughout the software life cycle. Testing is the part of the software development process where a computer program is subject to specific conditions to show that the problem meets its intended design. Building a testing oracle is one part of software testing. An oracle is an external mechanism which can be used to check test output for correctness. The characteristics of available oracles have a dominating influence on the cost and quality of software testing. In this thesis, methods of constructing oracles are investigated and classified. There are three kinds of method of constructing oracles: the pseudo-oracle approach, oracles using attributed grammars and oracles based on formal specification. This thesis develops a method for constructing an oracle, based on the Z specification language. A specification language can describe the correct syntax and semantics of software. The contextual part of a specification describes all the legal input to the program and the semantics part describes the meaning of the given input data. Based on this idea, an oracle is constructed and a prototype is implemented according to the method proposed in the thesis.

Item Type:Thesis (Masters)
Award:Master of Science
Thesis Date:1993
Copyright:Copyright of this thesis is held by the author
Deposited On:24 Oct 2012 15:15

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