Synthesizing SVT Data
Revision as of 10:13, 16 April 2008 by PeterHarding (talk | contribs)
Overview
Preparing data for performance tests is a very important part of the preparation phase for a load test exercise. The following scripts provide simple examples of approaches to synthesize parameter data for use by the test scripts.
User Login IDs
#!/usr/bin/env python print 'UserId' for i in range(200): print "svt%03d" % i
Unquoting URL Data
#!/usr/bin/env python import urllib encoded_data = """ %3CPromptEngineRuntimeContext%20xmlns%3D%22http%3A%2F%2Fwww.crystaldecisions.com%2Freport%22%20xmlns%3Axsi%3D%22http%3A%2F%2F www.w3.org%2F2001%2FXMLSchema-instance%22%20xmlns%3Axsd%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema%22%20xsi%3Atype%3D%22 PromptEngineRuntimeContext%22%20version%3D%222%22%3E%3CID%3E{MachineXID}%3C%2FID%3E%3CRenderOption%20xsi%3Atype%3D%22 BOwner%26gt%3B%26lt%3B%2FOwner%26gt%3B%26lt%3BDefinition%20xsi%3Atype%3D%22Parameter%22%20id%3D%225%22%26gt%3B%26lt%3B", """ data = urllib.unquote(encoded_data) print data
Generating Synthetic Credit Card Numbers
#!/usr/bin/env python # # # #------------------------------------------------------------------------------- """ Generate a abitrary collection of pseudo Credit card numbers which satisfy the validation test """ import random #------------------------------------------------------------------------------- prefix = '1234' max_digits = 16 max_numbers = 1000 #------------------------------------------------------------------------------- def gen(prefix): no = prefix l = list(no) i = len(prefix) while (i < (max_digits - 1)): x = random.randint(0, 9) l.append(str(x)) # print i, l, x i += 1 no = ''.join(l) chk_digit = encode(no) delta = 10 - chk_digit if delta == 10: delta = 0 # print chk_digit, delta l.append(str(delta)) no = ''.join(l) return no #------------------------------------------------------------------------------- def encode(no): n = 0 tot = 0 for i in range(len(no)): v = int(no[i]) if i % 2 == 0: inc = v * 2 if v > 4: n += 1 else: inc = v tot += inc tot += n chk = tot % 10 return chk #------------------------------------------------------------------------------- def validate(ccnumber): cnt = 0 tot = 0 for i in range(len(ccnumber)): val = int(ccnumber[i]) if i % 2 == 0: inc = val * 2 if val > 4: cnt += 1 else: inc = val tot += inc tot += cnt if ((tot % 10) == 0): return True else: return False #------------------------------------------------------------------------------- def test(): for no in nos: print no if validate(no): print "Card number VALID" else: print "Card number INVALID" #------------------------------------------------------------------------------- def main(): i = 0 while i < max_numbers: cc_no = gen(prefix) if validate(cc_no): print cc_no else: print "Card number %s - INVALID" % cc_no cc_no = None if cc_no: i += 1 else: pass #------------------------------------------------------------------------------- main() #-------------------------------------------------------------------------------