SQLite's Testing Methodology: How 590 Times More Test Code Ensures Reliability
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Summary
The article details SQLite's comprehensive testing methodology, revealing that the database library has approximately 590 times more test code (92,053.1 KSLOC) than actual source code (155.8 KSLOC). It describes four independent test harnesses used for testing the core SQLite library, emphasizing how thorough testing contributes to SQLite's exceptional reliability and robustness. The testing infrastructure is a key factor in SQLite's reputation as one of the most reliable software components in the world.
Key quotes
· 4 pulledThe reliability and robustness of SQLite is achieved in part by thorough and careful testing.
As of version 3.42.0 (2023-05-16), the SQLite library consists of approximately 155.8 KSLOC of C code.
By comparison, the project has 590 times as much test code and test scripts - 92053.1 KSLOC.
There are four independent test harnesses used for testing the core SQLite library.
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