判断文本(text_to_be_present_in_element)

判断文本

在做结果判断的时候,经常想判断某个元素中是否存在指定的文本,如登录后判断页面中是账号是否是该用户的用户名。
在前面的登录案例中,写了一个简单的方法,但不是公用的,在 EC 模块有个方法是可以专门用来判断元素中存在指定文本的:
text_to_be_present_in_element。
另外一个差不多复方法判断元素的 value 值:
text_to_be_present_in_element_value。

源码分析

class text_to_be_present_in_element(object):
""" An expectation for checking if the given text is present in the specified element.locator, text"""
'''翻译:判断元素中是否存在指定的文本,参数:locator, text'''
def __init__(self, locator, text_):
  self.locator = locator
  self.text = text_
def __call__(self, driver):
  try:
    element_text = _find_element(driver,
    self.locator).text
    return self.text in element_text
  except StaleElementReferenceException:
    return False
1.翻译:判断元素中是否存在指定的文本,两个参数:locator, text
2.__call__里返回的是布尔值:Ture 和 False

判断文本

1.判断百度首页上,“糯米”按钮这个元素中存在文本:贴吧

2.locator 参数是定位的方法
3.text 参数是期望的值

4.失败案例,如果判断失败就会返回false

判断value

class text_to_be_present_in_element_value(object):
"""An expectation for checking if the given text is present in the element's locator, text """
def __init__(self, locator, text_):
  self.locator = locator
  self.text = text_
def __call__(self, driver):
  try:
    element_text = _find_element(driver,
    self.locator).get_attribute("value")
    if element_text:
      return self.text in element_text
    else:
      return False
  except StaleElementReferenceException:
    return False

1.这个方法跟上面的差不多,只是这个是判断的 value 的值
2.这里举个简单案例,判断百度搜索按钮的 value 值

参考代码:

# coding:utf-8
from selenium import webdriver
from selenium.webdriver.support import expected_conditions as EC
driver = webdriver.Firefox()
driver.get("https://www.baidu.com/")
locator = ("name", "tj_trtieba")
text = u"贴吧"
result = EC.text_to_be_present_in_element(locator, text)(driver)
print result
# 判断失败案例
locator1 = ("name", "tj_trtieba")
text1 = u"贴吧hh"
result1 = EC.text_to_be_present_in_element(locator1, text1)(driver)
print result1
# 判断value值
locator2 = ("id","su")
value = u"百度一下"
result2 = EC.text_to_be_present_in_element_value(locator2,value)(driver)
print result2

  

posted @ 2017-12-11 16:21  Silence&QH  阅读(3720)  评论(0编辑  收藏  举报