Abstract

Spectra-based fault localization technique uses coverage information to calculate every statement's likelihood of having a bug.And then rank the likelihood in a decreasing order to find the faulty statement.This paper improves the spectra-base fault localization technique by increasing the marginal weight of the failed test cases.That means that as the number of the failed test case increases,the weight of the failed test case also increases.Comparing with reducing or sustaining the weight of covered statement's successful/failed test case,the experimental result shows that increasing the marginal weight of the covered statement's failed test case can promote the fault localization efficiency.

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