Exclude inside block strictly

[ego-thales]

From pytest-dev/pytest-cov#704.

TL;DR: It would be nice to be able to exclude the inside of an if statement from coverage, but not the if statement itself:

if statement:  # pragma: no <requested feature>
    inside_block

This would still report the if line, only the inside would be excluded.

Thanks in advance.

All the best.
Élie

[ego-thales]

Proposed alternative syntax:

if statement:
    # pragma: no cover
    inside_block

Has the advantage of not introducing a new word and being quite natural for beginner users. However this is inconsistent with top-level behaviour and might be confusing.

[webknjaz]

@ego-thales you might be interested in using a plugin for this. Here's a related discussion in Trio: python-trio/trio#3163.

And there, 3 plugins are discussed, implementing granular pragmas for partial coverage:

• https://pypi.org/p/covdefaults
• https://pypi.org/p/coverage-simple-excludes
• https://pypi.org/p/coverage-conditional-plugin