Back

@coveragepy It seems to work OK here:

$ make coverage 
...
Name                    Stmts   Miss Branch BrPart  Cover
TOTAL                     764      0    288      0   100%
$ pip freeze | grep coverage
coverage @ git+https://github.com/nedbat/coveragepy@67f1440e0a384000e337ab54bd9cc01804aec201
$ python --version
Python 3.11.2

@coveragepy No issues and all tests passed on WSL (Ubuntu 22.04.3 LTS) with Python 3.10 for https://github.com/tekktrik/cronberry/tree/main (tested locally)!

@coveragepy this leads me to wonder why this code has 100% branch coverage:

if not len("abc"): raise RuntimeError("impossible")

$ python -mcoverage run --branch impossible.py ; python -mcoverage report
Name            Stmts   Miss Branch BrPart  Cover
-------------------------------------------------
impossible.py       2      0      0      0   100%
-------------------------------------------------
TOTAL               2      0      0      0   100%

The branch (from line 1 to line 1!!) is never taken.

Of course, most code I write is formatted by black or ruff to put the body of an if statement on a separate line. If this is done, the missing branch coverage (now from line 1 to line 2) is detected.

@coveragepy any python version?

@coveragepy I tried this on warehouse codebase - needed a bit of requirements surgery (not your problem, our build process).
Codebase has 100% coverage stat (a few inline disables ), and does not assert.

More specifics:
https://gist.github.com/miketheman/178429ea5ae4f7ff2b360ac85cd9e1f2