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How to use nontrivial_flatmap method in hypothesis

Best Python code snippet using hypothesis

test_reusable_values.py

Source:test_reusable_values.py

...104@many_examples(base_reusable_strategies)105@given(reusable)106def test_flatmap_breaks_reusability(s):107    cond = True108    def nontrivial_flatmap(x):109        """Non-trivial flat-mapping function, intended to remain opaque even110        if some strategies introspect their flat-mappings."""111        if cond:112            return st.just(x)113        else:114            return st.none()115    assert s.has_reusable_values116    assert not s.flatmap(nontrivial_flatmap).has_reusable_values117@pytest.mark.parametrize(118    "strat",119    [120        st.lists(st.booleans()),121        st.sets(st.booleans()),122        st.dictionaries(st.booleans(), st.booleans()),...

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