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How to use flatmapped_strategy method in hypothesis

Best Python code snippet using hypothesis

flatmapped.py

Source:flatmapped.py

1# coding=utf-82#3# This file is part of Hypothesis, which may be found at4# https://github.com/HypothesisWorks/hypothesis-python5#6# Most of this work is copyright (C) 2013-2017 David R. MacIver7# (david@drmaciver.com), but it contains contributions by others. See8# CONTRIBUTING.rst for a full list of people who may hold copyright, and9# consult the git log if you need to determine who owns an individual10# contribution.11#12# This Source Code Form is subject to the terms of the Mozilla Public License,13# v. 2.0. If a copy of the MPL was not distributed with this file, You can14# obtain one at http://mozilla.org/MPL/2.0/.15#16# END HEADER17from __future__ import division, print_function, absolute_import18from hypothesis.internal.reflection import get_pretty_function_description19from hypothesis.searchstrategy.strategies import SearchStrategy20class FlatMapStrategy(SearchStrategy):21    def __init__(22        self, strategy, expand23    ):24        super(FlatMapStrategy, self).__init__()25        self.flatmapped_strategy = strategy26        self.expand = expand27    def calc_is_empty(self, recur):28        return recur(self.flatmapped_strategy)29    def __repr__(self):30        if not hasattr(self, u'_cached_repr'):31            self._cached_repr = u'%r.flatmap(%s)' % (32                self.flatmapped_strategy, get_pretty_function_description(33                    self.expand))34        return self._cached_repr35    def do_draw(self, data):36        source = data.draw(self.flatmapped_strategy)37        return data.draw(self.expand(source))38    @property39    def branches(self):40        return [41            FlatMapStrategy(strategy=strategy, expand=self.expand)42            for strategy in self.flatmapped_strategy.branches...

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