python Selenium2Library element操作的健壮性封装、普通操作不受影响

    """
    对Selenium2Library element操作的健壮性封装、普通操作不受影响.
    每个element操作方法生成一个操作对象
    ''' 2类对象:
        father类型: fatherName=None eleMethodName=webObj.browserName，
            一般在webObj创建时配套创建, _eleMethod_objDc中记录，形如{fatherName:{}}
        非father型: fatherName!=None eleMethodName=webObj.b下的eleMethodName
            在webObj中以"self.w.eleMethodName()"形式使用、首次使用时创建
            _eleMethod_objDc中记录，形如{fatherName:{eleMethodName:eleMethodObj}}
    '''
    exam:
        class WebObj(class):
            def __init__(url, brType="ff", brName="1"):
                self.b = Selenium2Library()
                self.b.open_browser(url, browser=brType, alias=brName)
                self.w = WebEleCall('__%s'%brName, webObj=self, fatherName=None)
        #end class
        web = WebObj("http://www.baidu.com")
        web.w.get_text(locator, _TryTimeout_=3)   #等效于如下代码:
        '''
        for i in range(0,3):
            try:
                web.b.self.b.wait_until_element_is_visible(locator, _TryTimeout_/3)
            except,eObj:
                print eObj
        web.b.get_text(locator)
    '''
    """

 1 # 在webObj创建时配套创建
 2 class WebEleCall(object): 
 3     """ 
 4     对Selenium2Library element操作的健壮性封装、普通操作不受影响. 
 5     每个element操作方法生成一个操作对象
 6     ''' 2类对象: 
 7         father类型: fatherName=None eleMethodName=webObj.browserName，
 8             一般在webObj创建时配套创建, _eleMethod_objDc中记录，形如{fatherName:{}}
 9         非father型: fatherName!=None eleMethodName=webObj.b下的eleMethodName
10             在webObj中以"self.w.eleMethodName()"形式使用、首次使用时创建
11             _eleMethod_objDc中记录，形如{fatherName:{eleMethodName:eleMethodObj}}
12     '''
13     exam:
14         class WebObj(class):
15             def __init__(url, brType="ff", brName="1"):
16                 self.b = Selenium2Library()
17                 self.b.open_browser(url, browser=brType, alias=brName)
18                 self.w = WebEleCall('__%s'%brName, webObj=self, fatherName=None)
19         #end class
20         web = WebObj("http://www.baidu.com")
21         web.w.get_text(locator, _TryTimeout_=3)   #等效于如下代码:
22         '''
23         for i in range(0,3):
24             try:
25                 web.b.self.b.wait_until_element_is_visible(locator, _TryTimeout_/3)
26             except,eObj:
27                 print eObj
28         web.b.get_text(locator)
29     '''
30     """
31     _eleMethod_objDc = {}   #每个fatherObj.eleMethod对应一个操作对象
32     @classmethod
33     def _get_eleMethods_(cls, browserObj):
34         _eleMethods = []
35         for i in dir(browserObj):
36             iObj = getattr(browserObj, i)
37             if not (i[0].islower() and hasattr(iObj, '__call__')):
38                 continue
39             try:
40                 iargs = inspect.getargspec(iObj).args
41             except BaseException,eObj:
42                 print "i=%s , eObj={%s}"%(i,eObj)
43                 continue
44             if len(iargs)>1 and iargs[1]=='locator':
45                 _eleMethods.append(i)
46         return _eleMethods
47     def __init__(self, eleMethodName, webObj, fatherName=None):
48         self.eleMethodName = eleMethodName
49         self.b = webObj.b
50         self.web = webObj
51         self.fatherName = fatherName    # 
52         if fatherName==None:    # 父对象自己的fatherName=None
53             self.__class__._eleMethod_objDc[eleMethodName] = {}
54         self._TryTimeout_ = 3
55         self._eleMethods = WebEleCall._get_eleMethods_(self.b)   #获取所有的eleMethods
56     def __getattr__(self, unkonwnAttr):    #封装Selenium2Library的方法
57         if unkonwnAttr in self._eleMethods:
58             eleMethodName = unkonwnAttr
59             fatherName = self.eleMethodName
60             cls = self.__class__
61             if unkonwnAttr in cls._eleMethod_objDc[fatherName].keys():
62                 obj = cls._eleMethod_objDc[fatherName][eleMethodName]
63             else:
64                 obj = cls(eleMethodName, webObj=self.web, fatherName=fatherName)
65                 cls._eleMethod_objDc[fatherName][eleMethodName] = obj
66             return obj
67         else:
68             return getattr(self.b, unkonwnAttr)
69     def __call__(self, locator, *args, **kw):
70         print "    --> b.%s('%s', *%s, **%s)"%(self.eleMethodName,locator,args,kw)
71         if locator==None:
72             print "assert: locator==None"
73         _TryTimeout_ = None
74         if '_TryTimeout_' in kw.keys():
75             _TryTimeout_ = kw['_TryTimeout_']
76             kw.pop('_TryTimeout_')
77         if self.eleMethodName=='wait_until_element_is_visible' and ('timeout' in kw.keys()):
78             _TryTimeout_ = kw['timeout']
79         if _TryTimeout_==None:   _TryTimeout_=self._TryTimeout_
80         if self.eleMethodName!='':
81             msgPre = "b.wait_until_element_is_visible(%s)"%locator
82             if _TryTimeout_!=self._TryTimeout_:
83                 print "    -->     b.wait_until_element_is_visible(%s, _TryTimeout_=%s)"%(locator,_TryTimeout_)
84             pyx.Try_withTimes(_TryTimes=3, _TryGap=0, _msgPre=msgPre,
85                     _reFunc=None, _reFKw=None,
86                     _func=self.b.wait_until_element_is_visible, locator=locator, timeout=_TryTimeout_/3)
87         eleMethod = getattr(self.b, self.eleMethodName)
88         return eleMethod(locator, *args, **kw)

class WebEleCall

 1 def Try_withTimes(_TryTimes,_TryGap,_msgPre,_reFunc,_reFKw,_func, *fargs, **fKw):
 2     """ 当reFunc想表示为空时，建议为time.sleep(0.01) """
 3     if _reFunc==None:
 4         _reFunc = str
 5         _reFKw = {}
 6     for i in range(_TryTimes): 
 7         try:
 8             iret = _func(*fargs, **fKw)
 9             break
10         except BaseException,ierrObj:
11             ierr = err_objToStr(ierrObj, ifDetail=False)
12             logging.warning("    ----> %s() times=%s, ierr={%s}"%(_msgPre, (i+1), ierr))
13             try:
14                 _reFunc(**_reFKw)
15             except BaseException,jerrObj:
16                 jerr = err_objToStr(jerrObj)
17                 logging.warning("    ----> %s().%s times=%s, jerr={%s}"
18                                 %(_msgPre,_reFunc, (i+1), jerr))
19             if (i+1<_TryTimes):
20                 time.sleep(_TryGap)
21     else:
22         assert False, "----> %s() Fail. ierr={%s}"%(_msgPre,ierr)
23     return iret

pyx.Try_withTimes

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