3、Request请求部分：
对每一个case初始化为一个request类实例，包含这case的测试数据，测试方法和测试结果，agent会实例化对立中的每个case，并在主线程中执行测试方法，获取相应的测试数据；
重要代码，这部分代码本来是pylot中的源码，个人更倾向于将它放在request中，需要少许更改：
|
def send(self, req):
# req is our own Request object
if HTTP_DEBUG:
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(self.cookie_jar), urllib2.HTTPHandler(debuglevel=1))
elif COOKIES_ENABLED:
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(self.cookie_jar))
else:
opener = urllib2.build_opener()
if req.method.upper() == 'POST':
request = urllib2.Request(req.url, req.body, req.headers)
else:
request = urllib2.Request(req.url, None, req.headers) # urllib2 assumes a GET if no data is supplied. PUT and DELETE are not supported
# timed message send+receive (TTLB)
req_start_time = self.default_timer()
try:
resp = opener.open(request) # this sends the HTTP request and returns as soon as it is done connecting and sending
connect_end_time = self.default_timer()
content = resp.read()
req_end_time = self.default_timer()
except httplib.HTTPException, e: # this can happen on an incomplete read, just catch all HTTPException
connect_end_time = self.default_timer()
resp = ErrorResponse()
resp.code = 0
resp.msg = str(e)
resp.headers = {}
content = ''
except urllib2.HTTPError, e: # http responses with status >= 400
connect_end_time = self.default_timer()
resp = ErrorResponse()
resp.code = e.code
resp.msg = httplib.responses[e.code] # constant dict of http error codes/reasons
resp.headers = dict(e.info())
content = ''
except urllib2.URLError, e: # this also catches socket errors
connect_end_time = self.default_timer()
resp = ErrorResponse()
resp.code = 0
resp.msg = str(e.reason)
resp.headers = {} # headers are not available in the exception
content = ''
req_end_time = self.default_timer()
if self.trace_logging:
# log request/response messages
self.log_http_msgs(req, request, resp, content)
return (resp, content, req_start_time, req_end_time, connect_end_time) |
