Support branch coverage for ternary expressions?

[nedbat]

Originally reported by Anonymous

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Eg: a = 1 if b == c else 2 is not registering any missing branches.

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• Bitbucket: https://bitbucket.org/ned/coveragepy/issue/557

[nedbat]

Original comment by Ionel Cristian Mărieș (Bitbucket: ionelmc, GitHub: ionelmc)

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Ah dooh! I forgot to log in 😬

[nedbat]

Coverage works with the information from sys.settrace, which is line-based. It has no way to get information within a line.

Long ago, I experimented with a way to get intra-line information, but it is just a wild hack, not something that can be used for real yet: http://nedbatchelder.com/blog/200804/wicked_hack_python_bytecode_tracing.html

[nedbat]

This is another flavor of #292.

[nedbat]

Duplicate of #292.