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This content will become publicly available on September 11, 2025

Title: Revisiting Test-Case Prioritization on Long-Running Test Suites
Award ID(s):
1763788
PAR ID:
10563257
Author(s) / Creator(s):
; ; ;
Publisher / Repository:
ACM
Date Published:
ISBN:
9798400706127
Page Range / eLocation ID:
615 to 627
Format(s):
Medium: X
Location:
Vienna Austria
Sponsoring Org:
National Science Foundation
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  1. Code coverage is the most widely adopted criteria for measuring test effectiveness in software quality assurance. The performance of coverage criteria (in indicating test suites' effectiveness) has been widely studied in prior work. Most of the studies use randomly constructed pseudo test suites to facilitate data collection for correlation analysis, yet no previous work has systematically studied whether pseudo test suites would lead to inflated correlation results. This paper focuses on the potentially wide-spread threat with a study over 123 real-world Java projects. Following the typical experimental process of studying coverage criteria, we investigate the correlation between statement/assertion coverage and mutation score using both pseudo and original test suites. Except for direct correlation analysis, we control the number of assertions and the test suite size to conduct partial correlation analysis. The results reveal that 1) the correlation (between coverage criteria and mutation score) derived from pseudo test suites is much higher than from original test suites (from 0.21 to 0.39 higher in Kendall value); 2) contrary to previously reported, statement coverage has a stronger correlation with mutation score than assertion coverage. 
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