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# This file is part of Hypothesis, which may be found at
# https://github.com/HypothesisWorks/hypothesis/
#
# Copyright the Hypothesis Authors.
# Individual contributors are listed in AUTHORS.rst and the git log.
#
# 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 https://mozilla.org/MPL/2.0/.
import inspect
from unittest import TestCase
import pytest
from hypothesis import example, given
from hypothesis.strategies import booleans, integers
def test_must_use_result_of_test():
class DoubleRun:
def execute_example(self, function):
x = function()
if inspect.isfunction(x):
return x()
@given(booleans())
def boom(self, b):
def f():
raise ValueError
return f
with pytest.raises(ValueError):
DoubleRun().boom()
class TestTryReallyHard(TestCase):
@given(integers())
def test_something(self, i):
pass
def execute_example(self, f):
f()
return f()
class Valueless:
def execute_example(self, f):
try:
return f()
except ValueError:
return None
@given(integers())
@example(1)
def test_no_boom_on_example(self, x):
raise ValueError
@given(integers())
def test_no_boom(self, x):
raise ValueError
@given(integers())
def test_boom(self, x):
raise AssertionError
def test_boom():
with pytest.raises(AssertionError):
Valueless().test_boom()
def test_no_boom():
Valueless().test_no_boom()
def test_no_boom_on_example():
Valueless().test_no_boom_on_example()
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