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# coding=utf-8
#
# This file is part of Hypothesis, which may be found at
# https://github.com/HypothesisWorks/hypothesis-python
#
# Most of this work is copyright (C) 2013-2015 David R. MacIver
# (david@drmaciver.com), but it contains contributions by others. See
# CONTRIBUTING.rst for a full list of people who may hold copyright, and
# consult the git log if you need to determine who owns an individual
# contribution.
#
# This Source Code Form is subject to the terms of the Mozilla Public License,
# v. 2.0. If a copy of the MPL was not distributed with this file, You can
# obtain one at http://mozilla.org/MPL/2.0/.
#
# END HEADER
from __future__ import division, print_function, absolute_import
from contextlib import contextmanager
import pytest
from hypothesis import find, given
from hypothesis.errors import InvalidArgument
from tests.common.utils import fails, capture_out
from hypothesis._settings import settings, Verbosity
from hypothesis.reporting import default as default_reporter
from hypothesis.reporting import with_reporter
from hypothesis.strategies import lists, booleans, integers
@contextmanager
def capture_verbosity(level):
with capture_out() as o:
with with_reporter(default_reporter):
with settings(verbosity=level):
yield o
def test_prints_intermediate_in_success():
with capture_verbosity(Verbosity.verbose) as o:
@given(booleans())
def test_works(x):
pass
test_works()
assert 'Trying example' in o.getvalue()
def test_does_not_log_in_quiet_mode():
with capture_verbosity(Verbosity.quiet) as o:
@fails
@given(integers())
def test_foo(x):
assert False
test_foo()
assert not o.getvalue()
def test_includes_progress_in_verbose_mode():
with capture_verbosity(Verbosity.verbose) as o:
with settings(verbosity=Verbosity.verbose):
find(lists(integers()), lambda x: sum(x) >= 1000000)
out = o.getvalue()
assert out
assert u'Shrunk example' in out
assert u'Found satisfying example' in out
def test_prints_initial_attempts_on_find():
with capture_verbosity(Verbosity.verbose) as o:
with settings(verbosity=Verbosity.verbose):
seen = []
def not_first(x):
if not seen:
seen.append(x)
return False
return x not in seen
find(integers(), not_first)
assert u'Trying example' in o.getvalue()
def test_includes_intermediate_results_in_verbose_mode():
with capture_verbosity(Verbosity.verbose) as o:
@fails
@given(lists(integers()))
def test_foo(x):
assert sum(x) < 1000000
test_foo()
lines = o.getvalue().splitlines()
assert len([l for l in lines if u'example' in l]) > 2
assert len([l for l in lines if u'AssertionError' in l])
VERBOSITIES = [
Verbosity.quiet, Verbosity.normal, Verbosity.verbose, Verbosity.debug
]
def test_verbosity_can_be_accessed_by_name():
for f in VERBOSITIES:
assert f is Verbosity.by_name(f.name)
def test_verbosity_is_sorted():
assert VERBOSITIES == sorted(VERBOSITIES)
def test_hash_verbosity():
x = {}
for f in VERBOSITIES:
x[f] = f
for k, v in x.items():
assert k == v
assert k is v
def test_verbosities_are_inequal():
for f in VERBOSITIES:
for g in VERBOSITIES:
if f is not g:
assert f != g
assert (f <= g) or (g <= f)
def test_verbosity_of_bad_name():
with pytest.raises(InvalidArgument):
Verbosity.by_name('cabbage')
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