page_factory初体验

https://github.com/mattfair/SeleniumFactory-for-Python

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___没学习的愧疚感，啃老族

pageobject_support.py

__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 func

cacheable = 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 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 = 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 func

def 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))

test.py

from pageobject_support import callable_find_by as find_by
from selenium import webdriver

class BaiduSearchPage(object):

    def __init__(self, driver):
        self._driver = driver

    search_box = find_by(id_="kw")
    search_button = find_by(id_='su')

    def search(self, keywords):
        self.search_box().clear()
        self.search_box().send_keys(keywords)
        self.search_button().click()


if __name__ == '__main__':
    driver = webdriver.Chrome()
    driver.get("https://www.baidu.com")
    BaiduSearchPage(driver).search("selenium")
    driver.close()