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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/.
from hypothesis import given, strategies as st
from tests.common.debug import find_any, minimal
x = st.shared(st.integers())
@given(x, x)
def test_sharing_is_by_instance_by_default(a, b):
assert a == b
@given(st.shared(st.integers(), key="hi"), st.shared(st.integers(), key="hi"))
def test_different_instances_with_the_same_key_are_shared(a, b):
assert a == b
def test_different_instances_are_not_shared():
find_any(
st.tuples(st.shared(st.integers()), st.shared(st.integers())),
lambda x: x[0] != x[1],
)
def test_different_keys_are_not_shared():
find_any(
st.tuples(st.shared(st.integers(), key=1), st.shared(st.integers(), key=2)),
lambda x: x[0] != x[1],
)
def test_keys_and_default_are_not_shared():
find_any(
st.tuples(st.shared(st.integers(), key=1), st.shared(st.integers())),
lambda x: x[0] != x[1],
)
def test_can_simplify_shared_lists():
xs = minimal(
st.lists(st.shared(st.integers())), lambda x: len(x) >= 10 and x[0] != 0
)
assert xs == [1] * 10
def test_simplify_shared_linked_to_size():
xs = minimal(st.lists(st.shared(st.integers())), lambda t: sum(t) >= 1000)
assert sum(xs[:-1]) < 1000
assert (xs[0] - 1) * len(xs) < 1000
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