PageFactory设计模式基于python实现

前言

pageFactory的设计模式能在java里执行的原因是java自带了PageFactory类，而在python中没有这样的包，但是已经有人写好了pageFactory在python的包，可以拿来用

pageFactory 用于python支持的py文件

__all__ = [’cacheable’, ’callable_find_by’, ’property_find_by’]def cacheable_decorator(lookup): def func(self): if not hasattr(self, ’_elements_cache’): self._elements_cache = {} # {callable_id: element(s)} cache = self._elements_cache key = id(lookup) if key not in cache: cache[key] = lookup(self) return cache[key] return funccacheable = cacheable_decorator_strategy_kwargs = [’id_’, ’xpath’, ’link_text’, ’partial_link_text’, ’name’, ’tag_name’, ’class_name’, ’css_selector’]def _callable_find_by(how, using, multiple, cacheable, context, driver_attr, **kwargs): def func(self): # context - driver or a certain element if context: ctx = context() if callable(context) else context.__get__(self) # or property else: ctx = getattr(self, driver_attr) # ’how’ AND ’using’ take precedence over keyword arguments if how and using: lookup = ctx.find_elements if multiple else ctx.find_element return lookup(how, using) if len(kwargs) != 1 or list(kwargs.keys())[0] not in _strategy_kwargs: raise ValueError('If ’how’ AND ’using’ are not specified, one and only one of the following ''valid keyword arguments should be provided: %s.' % _strategy_kwargs) key = list(kwargs.keys())[0]; value = kwargs[key] suffix = key[:-1] if key.endswith(’_’) else key # find_element(s)_by_xxx prefix = ’find_elements_by’ if multiple else ’find_element_by’ lookup = getattr(ctx, ’%s_%s’ % (prefix, suffix)) return lookup(value) return cacheable_decorator(func) if cacheable else funcdef callable_find_by(how=None, using=None, multiple=False, cacheable=False, context=None, driver_attr=’_driver’, **kwargs): return _callable_find_by(how, using, multiple, cacheable, context, driver_attr, **kwargs)def property_find_by(how=None, using=None, multiple=False, cacheable=False, context=None, driver_attr=’_driver’, **kwargs): return property(_callable_find_by(how, using, multiple, cacheable, context, driver_attr, **kwargs))

调用的例子

from pageobject_support import callable_find_by as byfrom selenium import webdriverfrom time import sleepclass BaiduSearchPage(object): def __init__(self, driver): self._driver = driver #初始化浏览器的api search_box = by(id_='kw') search_button = by(id_=’su’) def search(self, keywords): self.search_box().clear() self.search_box().send_keys(keywords) self.search_button().click()

支持的定位api

id_ (为避免与内置的关键字ID冲突，所以多了个下划线的后缀) name class_name css_selector tag_name xpath link_text partial_link_text

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持好吧啦网。