我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用doctest.etree()。
def check_output(self, want, got, optionflags): alt_self = getattr(self, '_temp_override_self', None) if alt_self is not None: super_method = self._temp_call_super_check_output self = alt_self else: super_method = OutputChecker.check_output parser = self.get_parser(want, got, optionflags) if not parser: return super_method( self, want, got, optionflags) try: want_doc = parser(want) except etree.XMLSyntaxError: return False try: got_doc = parser(got) except etree.XMLSyntaxError: return False return self.compare_docs(want_doc, got_doc)
def html_fromstring(html): return etree.fromstring(html, _html_parser) # We use this to distinguish repr()s from elements:
def get_default_parser(self): return etree.XML
def get_parser(self, want, got, optionflags): parser = None if NOPARSE_MARKUP & optionflags: return None if PARSE_HTML & optionflags: parser = html_fromstring elif PARSE_XML & optionflags: parser = etree.XML elif (want.strip().lower().startswith('<html') and got.strip().startswith('<html')): parser = html_fromstring elif (self._looks_like_markup(want) and self._looks_like_markup(got)): parser = self.get_default_parser() return parser
def output_difference(self, example, got, optionflags): want = example.want parser = self.get_parser(want, got, optionflags) errors = [] if parser is not None: try: want_doc = parser(want) except etree.XMLSyntaxError: e = sys.exc_info()[1] errors.append('In example: %s' % e) try: got_doc = parser(got) except etree.XMLSyntaxError: e = sys.exc_info()[1] errors.append('In actual output: %s' % e) if parser is None or errors: value = OutputChecker.output_difference( self, example, got, optionflags) if errors: errors.append(value) return '\n'.join(errors) else: return value html = parser is html_fromstring diff_parts = [] diff_parts.append('Expected:') diff_parts.append(self.format_doc(want_doc, html, 2)) diff_parts.append('Got:') diff_parts.append(self.format_doc(got_doc, html, 2)) diff_parts.append('Diff:') diff_parts.append(self.collect_diff(want_doc, got_doc, html, 2)) return '\n'.join(diff_parts)
def format_end_tag(self, el): if isinstance(el, etree.CommentBase): # FIXME: probably PIs should be handled specially too? return '-->' return '</%s>' % el.tag
def temp_install(html=False, del_module=None): """ Use this *inside* a doctest to enable this checker for this doctest only. If html is true, then by default the HTML parser will be used; otherwise the XML parser is used. """ if html: Checker = LHTMLOutputChecker else: Checker = LXMLOutputChecker frame = _find_doctest_frame() dt_self = frame.f_locals['self'] checker = Checker() old_checker = dt_self._checker dt_self._checker = checker # The unfortunate thing is that there is a local variable 'check' # in the function that runs the doctests, that is a bound method # into the output checker. We have to update that. We can't # modify the frame, so we have to modify the object in place. The # only way to do this is to actually change the func_code # attribute of the method. We change it, and then wait for # __record_outcome to be run, which signals the end of the __run # method, at which point we restore the previous check_output # implementation. if _IS_PYTHON_3: check_func = frame.f_locals['check'].__func__ checker_check_func = checker.check_output.__func__ else: check_func = frame.f_locals['check'].im_func checker_check_func = checker.check_output.im_func # Because we can't patch up func_globals, this is the only global # in check_output that we care about: doctest.etree = etree _RestoreChecker(dt_self, old_checker, checker, check_func, checker_check_func, del_module)
