James McCaffrey wrote an article in MSDN Mag https://msdn.microsoft.com/en-us/magazine/ff955768.aspx It demonstrates how to use automate the testing of an ASP.NET WebForms MiniCalculate page. The specific issue is parsing out the hidden viewstate field. The article is from 2010 and I believe the viewstate field size has changed, causing later webforms pages with the greater viewstatew field size to be incompatible with the original McCaffrey code. fd Please, can someone help me get the code to work? Here is the IRONPYTHON harness.py code... # harness.py import sysimport Systemimport clr from System import *from System.IO import *from System.Text import *from System.Net import *from HTMLParser import HTMLParser clr.AddReference('System.Web')from System.Web import * class MyParser(HTMLParser): def __init__(self): #super().__init__(self) HTMLParser.__init__(self) #self.seen = {} #d = dict([('two', 2), ('one', 1), ('three', 3)]) def handle_starttag(self, tag, attributes): if tag != 'input': return a = dict(attributes) if a['type'] == 'hidden': print a['value'] return def getVS(url): wc = WebClient() bytes = wc.DownloadData(url) html = Encoding.ASCII.GetString(bytes) print html print 'starttag begin' parser = MyParser() return parser.feed(html) #start = html.IndexOf('id="__VIEWSTATE"', 0) + 24 #end = html.IndexOf('"', start) #vs = html.Substring(start, end-start) #return vs def getEV(url): wc = WebClient() bytes = wc.DownloadData(url) html = Encoding.ASCII.GetString(bytes) start = html.IndexOf('id="__EVENTVALIDATION"', 0) + 30 end = html.IndexOf('"', start) ev = html.Substring(start, end-start) return ev try: print '\nBegin IronPython Request-Response testing' print sys.argv[0] url = 'http://localhost:64725/Default.aspx' print '\nURL under test = ' + url + '\n' testCases = 'testCases.txt' numPass = numFail = 0 filePath = 'C:\\Users\\daniel\\Downloads\\McCaffrey\\TestRun\\testCases.txt' fin = open(filePath, 'r') for line in fin: print '======================================================================' (caseid,value1,value2,operation,decimals,action,expected) = line.split('|') expected = 'value="' + expected.Trim() + '" id="TextBox3"' data = 'TextBox1=' + value1 + '&TextBox2=' + value2 + '&Operation=' + operation + '&DropDownList1=' + decimals + '&Button1=' + action print 'Test case: ' + caseid print 'Input : ' + data print 'Expected : ' + expected vs = getVS(url) ev = getEV(url) vs = HttpUtility.UrlEncode(vs) ev = HttpUtility.UrlEncode(ev) data = data + "&__VIEWSTATE=" + vs + "&__EVENTVALIDATION=" + ev buffer = Encoding.ASCII.GetBytes(data) req = HttpWebRequest.Create(url) #print '^^^^^^^^^^^^^^^^^^^^^^^^' #print req.GetResponse().Headers req.Method = 'POST' req.ContentType = 'application/x-www-form-urlencoded' print "**********************************" print "buffer.Length = ", buffer.Length req.ContentLength = buffer.Length reqst = req.GetRequestStream() reqst.Write(buffer, 0, buffer.Length) #reqst.Flush() reqst.Close() res = req.GetResponse() resst = res.GetResponseStream() sr = StreamReader(resst) html = sr.ReadToEnd() sr.Close() resst.Close() if html.IndexOf(expected) >= 0: print 'Pass' numPass = numPass + 1 else: print '**FAIL**' numFail = numFail + 1 print '======================================================================\n' # end main processing loop fin.close() print '\nNumber pass = ' + str(numPass) print 'Number fail = ' + str(numFail) print '\nEnd test run\n' except System.Exception, e: #type, value, traceback = sys.exc_info() print e.Message Thanks, Danny Rosales
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