pass or continue in else branch considered missing

[nedbat]

Originally reported by Peter Inglesby (Bitbucket: inglesp, GitHub: inglesp)

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I would expect the following code to have 100% coverage, but it doesn't -- the continue line is marked as missing.

#!python

for n in [1, 2]:
    if n == 1:
        pass
    else:
        continue

The same happens if the continue is changed to pass. The contents of the if block is not important.

This may be a duplicate of #493 or #496.

I'm using coverage 4.1, and have reproduced with Pythons 3.5.1 and 2.7.10.

The contents of .coverage is:

!coverage.py: This is a private format, don't read it directly!{"lines": {"/Users/inglesp/coverage_demo.py": [1, 2, 3]}}

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• Bitbucket: https://bitbucket.org/ned/coveragepy/issue/497

[nedbat]

It's a duplicate of #198, which is due to CPython optimizing away a jump to a jump.

[nedbat]

Duplicate of #198.

[nedbat]

Original comment by Peter Inglesby (Bitbucket: inglesp, GitHub: inglesp)

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I think the limitation should be documented. If it's not already (I can't find it), would you welcome a patch?

[nedbat]

I suppose it could go here: http://coverage.readthedocs.io/en/coverage-4.1/trouble.html though I wonder if you would have found that page when looking?

[nedbat]

Original comment by Peter Inglesby (Bitbucket: inglesp, GitHub: inglesp)

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Yes, I found that page.