view tests/sitecustomize.py @ 40727:d9fc51f77cc5 stable

tests: sniff for libfuzzer actually being available in test-fuzz-targets.t

When I upgraded the FreeBSD buildbot to 11.2 it seems we picked up
clang6, but the default clang on FreeBSD doesn't include libfuzzer. I
can't find a way to sniff for libfuzzer without running a compile, so
here we are.

Differential Revision: https://phab.mercurial-scm.org/D5270

from __future__ import absolute_import
import os

if os.environ.get('COVERAGE_PROCESS_START'):
    try:
        import coverage
        import uuid

        covpath = os.path.join(os.environ['COVERAGE_DIR'],
                               'cov.%s' % uuid.uuid1())
        cov = coverage.coverage(data_file=covpath, auto_data=True)
        cov._warn_no_data = False
        cov._warn_unimported_source = False
        cov.start()
    except ImportError:
        pass