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In case anyone else was wondering, SQLite is about 156k lines of code with 92,000k lines of test code.

Do you have a source for that?

Why do you need a source? You can clone SQLite3 and count the lines yourself.

The test code of sqlite is not public.

Yes and no. Part of it is public, just not the "best" part: https://www.sqlite.org/testing.html

Thanks for the link. It looks like the public part is 27k lines of code (vs the 92,000k lines of code in the proprietary closed-source part).

So three orders of magnitude more tests than code. Yikes, if that is what 100% branch coverage looks like then count me out!