hypothesis_regex.py 文件源码

def strategy(self):
        'Returns resulting strategy that generates configured char set'
        max_codepoint = None if self._unicode else 127

        strategies = []
        if self._negate:
            if self._categories or self._whitelist_chars:
                strategies.append(
                    hs.characters(
                        blacklist_categories=self._categories | set(['Cc', 'Cs']),
                        blacklist_characters=self._whitelist_chars,
                        max_codepoint=max_codepoint,
                    )
                )
            if self._blacklist_chars:
                strategies.append(
                    hs.sampled_from(
                        list(self._blacklist_chars - self._whitelist_chars)
                    )
                )
        else:
            if self._categories or self._blacklist_chars:
                strategies.append(
                    hs.characters(
                        whitelist_categories=self._categories,
                        blacklist_characters=self._blacklist_chars,
                        max_codepoint=max_codepoint,
                    )
                )
            if self._whitelist_chars:
                strategies.append(
                    hs.sampled_from(
                        list(self._whitelist_chars - self._blacklist_chars)
                    )
                )

        return hs.one_of(*strategies) if strategies else hs.just(u'')