怎样从0开始搭建一个测试框架_1——配置
我们先创建一个简单的脚本吧,在test文件夹创建test_baidu.py:<font face="宋体" size="3">import osimport time
from selenium import webdriver
from selenium.webdriver.common.by import By
URL = "http://www.baidu.com"
base_path = os.path.dirname(os.path.abspath(__file__)) + '\..'
driver_path = os.path.abspath(base_path+'\drivers\chromedriver.exe')
locator_kw = (By.ID, 'kw')
locator_su = (By.ID, 'su')
locator_result = (By.XPATH, '//div/h3/a')
driver = webdriver.Chrome(executable_path=driver_path)
driver.get(URL)
driver.find_element(*locator_kw).send_keys('selenium 灰蓝')
driver.find_element(*locator_su).click()
time.sleep(2)
links = driver.find_elements(*locator_result)
for link in links:
print(link.text)
driver.quit()</font>如果想要搜索“Python selenium”,是不是要再创建一个脚本?还是把原来的脚本修改一下?
或者我们可以用unittest来改一下,把两次搜索分别写一个测试方法:
<font face="宋体" size="3">import os
import time
import unittest
from selenium import webdriver
from selenium.webdriver.common.by import By
class TestBaiDu(unittest.TestCase):
URL = "http://www.baidu.com"
base_path = os.path.dirname(os.path.abspath(__file__)) + '\..'
driver_path = os.path.abspath(base_path+'\drivers\chromedriver.exe')
locator_kw = (By.ID, 'kw')
locator_su = (By.ID, 'su')
locator_result = (By.XPATH, '//div/h3/a')
def setUp(self):
self.driver = webdriver.Chrome(executable_path=self.driver_path)
self.driver.get(self.URL)
def tearDown(self):
self.driver.quit()
def test_search_0(self):
self.driver.find_element(*self.locator_kw).send_keys('selenium 灰蓝')
self.driver.find_element(*self.locator_su).click()
time.sleep(2)
links = self.driver.find_elements(*self.locator_result)
for link in links:
print(link.text)
def test_search_1(self):
self.driver.find_element(*self.locator_kw).send_keys('Python selenium')
self.driver.find_element(*self.locator_su).click()
time.sleep(2)
links = self.driver.find_elements(*self.locator_result)
for link in links:
print(link.text)
if __name__ == '__main__':
unittest.main()</font>现在,我们把配置抽出来放到config.yml中:
<font face="宋体" size="3">URL: http://www.baidu.com</font>为了读取yaml文件,我们需要一个封装YamlReader类,在utils中创建file_reader.py文件:
<font face="宋体" size="3">import yaml
import os
class YamlReader:
def __init__(self, yamlf):
if os.path.exists(yamlf):
self.yamlf = yamlf
else:
raise FileNotFoundError('文件不存在!')
self._data = None
@property
def data(self):
# 如果是第一次调用data,读取yaml文档,否则直接返回之前保存的数据
if not self._data:
with open(self.yamlf, 'rb') as f:
self._data = list(yaml.safe_load_all(f))# load后是个generator,用list组织成列表
return self._data</font>而且我们需要一个Config类来读取配置,config.py:
<font face="宋体" size="3">"""
读取配置。这里配置文件用的yaml,也可用其他如XML,INI等,需在file_reader中添加相应的Reader进行处理。
"""
import os
from utils.file_reader import YamlReader
# 通过当前文件的绝对路径,其父级目录一定是框架的base目录,然后确定各层的绝对路径。如果你的结构不同,可自行修改。
# 之前直接拼接的路径,修改了一下,用现在下面这种方法,可以支持linux和windows等不同的平台,也建议大家多用os.path.split()和os.path.join(),不要直接+'\\xxx\\ss'这样
BASE_PATH = os.path.split(os.path.dirname(os.path.abspath(__file__)))
CONFIG_FILE = os.path.join(BASE_PATH, 'config', 'config.yml')
DATA_PATH = os.path.join(BASE_PATH, 'data')
DRIVER_PATH = os.path.join(BASE_PATH, 'drivers')
LOG_PATH = os.path.join(BASE_PATH, 'log')
REPORT_PATH = os.path.join(BASE_PATH, 'report')
class Config:
def __init__(self, config=CONFIG_FILE):
self.config = YamlReader(config).data
def get(self, element, index=0):
"""
yaml是可以通过'---'分节的。用YamlReader读取返回的是一个list,第一项是默认的节,如果有多个节,可以传入index来获取。
这样我们其实可以把框架相关的配置放在默认节,其他的关于项目的配置放在其他节中。可以在框架中实现多个项目的测试。
"""
return self.config.get(element)</font>修改test_baidu.py:
<font face="宋体" size="3">import time
import unittest
from selenium import webdriver
from selenium.webdriver.common.by import By
from utils.config import Config, DRIVER_PATH
class TestBaiDu(unittest.TestCase):
URL = Config().get('URL')
locator_kw = (By.ID, 'kw')
locator_su = (By.ID, 'su')
locator_result = (By.XPATH, '//div/h3/a')
def setUp(self):
self.driver = webdriver.Chrome(executable_path=DRIVER_PATH + '\chromedriver.exe')
self.driver.get(self.URL)
def tearDown(self):
self.driver.quit()
def test_search_0(self):
self.driver.find_element(*self.locator_kw).send_keys('selenium 灰蓝')
self.driver.find_element(*self.locator_su).click()
time.sleep(2)
links = self.driver.find_elements(*self.locator_result)
for link in links:
print(link.text)
def test_search_1(self):
self.driver.find_element(*self.locator_kw).send_keys('Python selenium')
self.driver.find_element(*self.locator_su).click()
time.sleep(2)
links = self.driver.find_elements(*self.locator_result)
for link in links:
print(link.text)
if __name__ == '__main__':
unittest.main()</font>我们已经把配置分离出来了,虽然现在看起来似乎很麻烦,但是想想如果你有50个用例文件甚至更多,一旦项目URL变了,你还要一个个去修改吗? 支持分享
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