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Issue #10990: Prevent tests from clobbering a set trace function.

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Many tests simply didn't care if they unset a pre-existing trace function. This
made test coverage impossible. This patch fixes various tests to put back any
pre-existing trace function. It also introduces test.support.no_tracing as a
decorator which will temporarily unset the trace function for tests which
simply fail otherwise.

Thanks to Kristian Vlaardingerbroek for helping to find the cause of various
trace function unsets.
This commit is contained in:
Brett Cannon 2011-02-21 19:29:56 +00:00
parent 4709ec0686
commit 31f5929c1e
15 changed files with 283 additions and 221 deletions
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4
Lib/test/test_runpy.py
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@ -6,7 +6,8 @@ import sys
import re
import tempfile
import py_compile
from test.support import forget, make_legacy_pyc, run_unittest, unload, verbose
from test.support import (
forget, make_legacy_pyc, run_unittest, unload, verbose, no_tracing)
from test.script_helper import (
make_pkg, make_script, make_zip_pkg, make_zip_script, temp_dir)
@ -395,6 +396,7 @@ argv0 = sys.argv[0]
msg = "can't find '__main__' module in %r" % zip_name
self._check_import_error(zip_name, msg)
@no_tracing
def test_main_recursion_error(self):
with temp_dir() as script_dir, temp_dir() as dummy_dir:
mod_name = '__main__'