view tests/heredoctest.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, print_function

import sys

def flush():
    sys.stdout.flush()
    sys.stderr.flush()

globalvars = {}
lines = sys.stdin.readlines()
while lines:
    l = lines.pop(0)
    if l.startswith('SALT'):
        print(l[:-1])
    elif l.startswith('>>> '):
        snippet = l[4:]
        while lines and lines[0].startswith('... '):
            l = lines.pop(0)
            snippet += l[4:]
        c = compile(snippet, '<heredoc>', 'single')
        try:
            flush()
            exec(c, globalvars)
            flush()
        except Exception as inst:
            flush()
            print(repr(inst))