pypy3.9: reports missing branch from function-to-decorator · Issue #1326 · nedbat/coveragepy (original) (raw)

Describe the bug
in pypy 3.9 coverage reports a missing branch from a function to its decorator (though that should be impossible?)

To Reproduce
How can we reproduce the problem? Please be specific. Don't link to a failing CI job. Answer the questions below:

What version of Python are you using?

$ ./venv/bin/pypy3 --version --version Python 3.9.10 (8276b505180f70c5784a698a510f0a17317a85c3, Feb 19 2022, 16:50:47) [PyPy 7.3.8 with GCC 10.2.1 20210130 (Red Hat 10.2.1-11)]

What version of coverage.py shows the problem? The output of coverage debug sys is helpful.

coverage debug sys

$ ./venv/bin/coverage debug sys -- sys ------------------------------------------------------- coverage_version: 6.3.1 coverage_module: /tmp/y/venv/lib/pypy3.9/site-packages/coverage/init.py tracer: -none- CTracer: unavailable plugins.file_tracers: -none- plugins.configurers: -none- plugins.context_switchers: -none- configs_attempted: .coveragerc setup.cfg tox.ini pyproject.toml configs_read: -none- config_file: None config_contents: -none- data_file: -none- python: 3.9.10 (8276b505180f70c5784a698a510f0a17317a85c3, Feb 19 2022, 16:50:47)[PyPy 7.3.8 with GCC 10.2.1 20210130 (Red Hat 10.2.1-11)] platform: Linux-5.13.0-28-generic-x86_64-with-glibc2.31 implementation: PyPy executable: /tmp/y/venv/bin/pypy3 def_encoding: utf-8 fs_encoding: utf-8 pid: 6693 cwd: /tmp/y path: /tmp/y/venv/bin /home/asottile/opt/pypy3.9-v7.3.8-linux64/lib/pypy3.9 /tmp/y/venv/lib/pypy3.9/site-packages environment: HOME = /home/asottile PYTHONSTARTUP = /home/asottile/.pythonrc.py command_line: ./venv/bin/coverage debug sys sqlite3_version: 2.6.0 sqlite3_sqlite_version: 3.7.17 sqlite3_temp_store: 0 sqlite3_compile_options: DISABLE_DIRSYNC; ENABLE_COLUMN_METADATA; ENABLE_FTS3 ENABLE_RTREE; ENABLE_UNLOCK_NOTIFY; SECURE_DELETE TEMP_STORE=1; THREADSAFE=1

What versions of what packages do you have installed? The output of pip freeze is helpful.

(this is just what comes with pypy + coverage)

$ ./venv/bin/pip freeze cffi==1.15.0 coverage==6.3.1 greenlet==0.4.13 hpy==0.0.3 readline==6.2.4.1

What code shows the problem? Give us a specific commit of a specific repo that we can check out. If you've already worked around the problem, please provide a commit before that fix.

here's a minimal bit of code:

def dec(g): def dec_inner(f): return f return dec_inner

@dec(1) def f(x): print(x)

f(1)

What commands did you run?

$ ./venv/bin/coverage erase && ./venv/bin/coverage run --branch -m t && venv/bin/coverage report --show-missing 1 Name Stmts Miss Branch BrPart Cover Missing

t.py 8 0 2 1 90% 8->7

TOTAL 8 0 2 1 90%

Expected behavior
I expect 100% coverage from that script

Additional context
n/a