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• How to avoid code duplication for a system which has logic that may change year wise?

  - by aravind

  What would be the way to design a system which has logic that may change year wise? There is an application which conducts online exams. There are five questions for a particular subject. The questions may (or may not) change year wise. As per my current design, the questions in database are stored year wise. There are some year specific code logic as well. In order to enable the application for another year, the year specific database records and code will be copied or duplicated. How to avoid this code duplication?

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• How to layer if statements when order of logic is irrelevant?

  - by jimmyjimmy

  Basically I have a series of logic in my website that can lead to 5 total outcomes. Basically two different if tests and then a catch all else statement. For example: if cond1: if mod1: #do things elif mod2: #do things elif cond2: if mod1: #do things elif mod2 #do things else: #do things I was thinking about rewriting it like this: if cond1 and mod1: #do things elif cond1 and mod2: #do things elif cond2 and mod1: #do things elif cond2 and mod2: #do things else: #do things Is there any real difference in these two coding options/a better choice for this kind of logic testing?

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• Testing smart card minidriver

  - by user352792

  when testing smart card minidriver in windows 7, got the following errors: "cmck exec Reconnect" always show that Testing through CAPI calls Submitting CSP PIN for reader \.\DMWZ ESAFE 0\ CryptAcquireContext - CRYPT_NEWKEYSET CryptGenKey Reconnecting CryptAcquireContext - CRYPT_DELETEKEYSET CryptAcquireContext failed unexpectedly d:\5429t\testsrc\dstest\security\core\credentials\smartcard\cmck\cmck\fnreconnect.cpp Line: 264 WIN32 0x80090016 Keyset does not exist. in windows xp, it always passed. i have no idea! this is my log. in XP: /* P:608 T:3380 8-30-203 CardAcquireContext(): BEGIN /* P:608 T:3380 8-30-203 CardAcquireContext(): SUCCESS /* P:608 T:3380 8-30-203 CardAcquireContext(): BEGIN /* P:608 T:3380 8-30-203 CardAcquireContext(): SUCCESS /* P:608 T:3380 8-31-750 CardAcquireContext(): BEGIN /* P:608 T:3380 8-31-765 CardAcquireContext(): SUCCESS /* P:608 T:3380 8-31-765 CardDeleteContext(): BEGIN /* P:608 T:3380 8-31-765 CardDeleteContext(): SUCCESS /* P:608 T:3380 8-31-765 CardAcquireContext(): BEGIN /* P:608 T:3380 8-31-765 CardAcquireContext(): SUCCESS /* P:608 T:3380 8-31-765 CardDeleteContext(): BEGIN /* P:608 T:3380 8-31-781 CardDeleteContext(): SUCCESS /* P:608 T:3380 8-31-781 CardAcquireContext(): BEGIN /* P:608 T:3380 8-31-781 CardAcquireContext(): SUCCESS /* P:608 T:3380 8-31-781 CardGetChallenge(): BEGIN /* P:608 T:3380 CardGetChallenge(): Challenge = CE568537C1BC9318 / / P:608 T:3380 8-31-781 CardGetChallenge(): SUCCESS /* P:608 T:3380 8-31-796 CardAuthenticateChallenge(): BEGIN /* P:608 T:3380 CardAuthenticateChallenge(): Response = B99E85F50E1F5C29 / / P:608 T:3380 8-31-796 CardAuthenticateChallenge(): SUCCESS /* P:608 T:3380 8-31-812 CardDeauthenticate(): BEGIN /* P:608 T:3380 8-31-812 CardDeauthenticate(): SUCCESS /* P:608 T:3380 8-31-812 CardAuthenticatePin(): BEGIN /* P:608 T:3380 CardAuthenticatePin(): User PIN = 0000 / / P:608 T:3380 8-31-828 CardAuthenticatePin(): SUCCESS /* P:608 T:3380 8-31-828 CardDeauthenticate(): BEGIN /* P:608 T:3380 8-31-843 CardDeauthenticate(): SUCCESS /* P:608 T:3380 8-31-843 CardDeleteContext(): BEGIN /* P:608 T:3380 8-31-843 CardDeleteContext(): SUCCESS /* P:608 T:3380 8-31-859 CardAcquireContext(): BEGIN /* P:608 T:3380 8-31-859 CardAcquireContext(): SUCCESS /* P:608 T:3380 8-31-859 CardAuthenticatePin(): BEGIN /* P:608 T:3380 CardAuthenticatePin(): User PIN = 0000 / / P:608 T:3380 8-31-875 CardAuthenticatePin(): SUCCESS /* P:608 T:3380 8-31-875 CardQueryCapabilities(): BEGIN /* P:608 T:3380 8-31-875 CardQueryCapabilities(): SUCCESS /* P:608 T:3380 8-31-890 CardAuthenticatePin(): BEGIN /* P:608 T:3380 CardAuthenticatePin(): User PIN = 0000 / / P:608 T:3380 8-31-906 CardAuthenticatePin(): SUCCESS /* P:608 T:3380 8-31-906 CardDeauthenticate(): BEGIN /* P:608 T:3380 8-31-921 CardDeauthenticate(): SUCCESS /* P:608 T:3380 8-31-921 CardDeleteContext(): BEGIN /* P:608 T:3380 8-31-921 CardDeleteContext(): SUCCESS /* P:608 T:3380 8-32-0 CardAcquireContext(): BEGIN /* P:608 T:3380 8-32-0 CardAcquireContext(): SUCCESS /* P:608 T:3380 8-32-0 CardReadFile(): BEGIN /* P:608 T:3380 CardReadFile(): Dir Name = ROOT, File Name = cardid / / P:608 T:3380 CardReadFile(): cardid = 34646533393531342D643465662D3432 / / P:608 T:3380 8-32-46 CardReadFile(): SUCCESS /* P:608 T:3380 8-32-62 CardReadFile(): BEGIN /* P:608 T:3380 CardReadFile(): Dir Name = ROOT, File Name = cardcf / / P:608 T:3380 CardReadFile(): cardcf = 000000000000 / / P:608 T:3380 8-32-109 CardReadFile(): SUCCESS /* P:608 T:3380 8-32-109 CardReadFile(): BEGIN /* P:608 T:3380 CardReadFile(): Dir Name = mscp, File Name = cmapfile / / P:608 T:3380 8-32-187 CardReadFile(): BEGIN /* P:608 T:3380 CardReadFile(): Dir Name = ROOT, File Name = cardcf / / P:608 T:3380 CardReadFile(): cardcf = 000000000000 / / P:608 T:3380 8-32-234 CardReadFile(): SUCCESS /* P:608 T:3380 8-32-250 CardAuthenticatePin(): BEGIN /* P:608 T:3380 CardAuthenticatePin(): User PIN = 0000 / / P:608 T:3380 8-32-265 CardAuthenticatePin(): SUCCESS /* P:608 T:3380 8-32-265 CardDeauthenticate(): BEGIN /* P:608 T:3380 8-32-281 CardDeauthenticate(): SUCCESS /* P:608 T:3380 8-32-281 CardReadFile(): BEGIN /* P:608 T:3380 CardReadFile(): Dir Name = ROOT, File Name = cardcf / / P:608 T:3380 CardReadFile(): cardcf = 000000000000 / / P:608 T:3380 8-32-328 CardReadFile(): SUCCESS /* P:608 T:3380 8-32-343 CardQueryFreeSpace(): BEGIN /* P:608 T:3380 8-32-359 CardQueryFreeSpace(): SUCCESS /* P:608 T:3380 8-32-375 CardReadFile(): BEGIN /* P:608 T:3380 CardReadFile(): Dir Name = ROOT, File Name = cardcf / / P:608 T:3380 CardReadFile(): cardcf = 000000000000 / / P:608 T:3380 8-32-421 CardReadFile(): SUCCESS /* P:608 T:3380 8-32-421 CardAuthenticatePin(): BEGIN /* P:608 T:3380 CardAuthenticatePin(): User PIN = 0000 / / P:608 T:3380 8-32-453 CardAuthenticatePin(): SUCCESS /* P:608 T:3380 8-32-453 CardWriteFile(): BEGIN /* P:608 T:3380 CardWriteFile(): Dir Name = ROOT, File Name = cardcf / / P:608 T:3380 CardWriteFile(): cardcf = 000000000100 / / P:608 T:3380 8-32-531 CardWriteFile(): SUCCESS /* P:608 T:3380 8-32-531 CardWriteFile(): BEGIN /* P:608 T:3380 CardWriteFile(): Dir Name = mscp, File Name = cmapfile / / P:608 T:3380 CardWriteFile(): cmapfile = 660031006500300035003000300030002D0031003600380038002D0034006200380063002D0039006500300066002D003000310061006200300066006200340062003800660037000000000000000000010000000000 / / P:608 T:3380 8-32-921 CardWriteFile(): SUCCESS /* P:608 T:3380 8-32-921 CardWriteFile(): BEGIN /* P:608 T:3380 CardWriteFile(): Dir Name = ROOT, File Name = cardcf / / P:608 T:3380 CardWriteFile(): cardcf = 000000000200 / / P:608 T:3380 8-33-0 CardWriteFile(): SUCCESS /* P:608 T:3380 8-33-0 CardWriteFile(): BEGIN /* P:608 T:3380 CardWriteFile(): Dir Name = mscp, File Name = cmapfile / / P:608 T:3380 CardWriteFile(): cmapfile = 660031006500300035003000300030002D0031003600380038002D0034006200380063002D0039006500300066002D003000310061006200300066006200340062003800660037000000000000000000030000000000 / / P:608 T:3380 8-33-109 CardWriteFile(): SUCCESS /* P:608 T:3380 8-33-125 CardQueryCapabilities(): BEGIN /* P:608 T:3380 8-33-125 CardQueryCapabilities(): SUCCESS /* P:608 T:3380 8-33-125 CardWriteFile(): BEGIN /* P:608 T:3380 CardWriteFile(): Dir Name = ROOT, File Name = cardcf / / P:608 T:3380 CardWriteFile(): cardcf = 000001000200 / / P:608 T:3380 8-33-203 CardWriteFile(): SUCCESS /* P:608 T:3380 8-33-203 CardCreateContainer(): BEGIN /* P:608 T:3380 8-35-515 CardCreateContainer(): SUCCESS /* P:608 T:3380 8-35-531 CardWriteFile(): BEGIN /* P:608 T:3380 CardWriteFile(): Dir Name = ROOT, File Name = cardcf / / P:608 T:3380 CardWriteFile(): cardcf = 000001000300 / / P:608 T:3380 8-35-609 CardWriteFile(): SUCCESS /* P:608 T:3380 8-35-609 CardWriteFile(): BEGIN /* P:608 T:3380 CardWriteFile(): Dir Name = mscp, File Name = cmapfile / / P:608 T:3380 CardWriteFile(): cmapfile = 660031006500300035003000300030002D0031003600380038002D0034006200380063002D0039006500300066002D003000310061006200300066006200340062003800660037000000000000000000030000040000 / / P:608 T:3380 8-35-734 CardWriteFile(): SUCCESS /* P:608 T:3380 8-35-734 CardGetContainerInfo(): BEGIN /* P:608 T:3380 8-35-796 CardGetContainerInfo(): SUCCESS /* P:608 T:5764 8-37-296 CardDeauthenticate(): BEGIN /* P:608 T:5764 8-37-312 CardDeauthenticate(): SUCCESS /* P:608 T:3380 8-37-312 CardReadFile(): BEGIN /* P:608 T:3380 CardReadFile(): Dir Name = ROOT, File Name = cardcf / / P:608 T:3380 CardReadFile(): cardcf = 000001000300 / / P:608 T:3380 8-37-375 CardReadFile(): SUCCESS /* P:608 T:3380 8-37-375 CardReadFile(): BEGIN /* P:608 T:3380 CardReadFile(): Dir Name = ROOT, File Name = cardcf / / P:608 T:3380 CardReadFile(): cardcf = 000001000300 / / P:608 T:3380 8-37-437 CardReadFile(): SUCCESS /* P:608 T:3380 8-37-437 CardAuthenticatePin(): BEGIN /* P:608 T:3380 CardAuthenticatePin(): User PIN = 0000 / / P:608 T:3380 8-37-468 CardAuthenticatePin(): SUCCESS /* P:608 T:3380 8-37-484 CardWriteFile(): BEGIN /* P:608 T:3380 CardWriteFile(): Dir Name = ROOT, File Name = cardcf / / P:608 T:3380 CardWriteFile(): cardcf = 000001000400 / / P:608 T:3380 8-37-546 CardWriteFile(): SUCCESS /* P:608 T:3380 8-37-562 CardDeleteFile(): BEGIN /* P:608 T:3380 CardDeleteFile(): Dir Name = mscp, File Name = ksc00 / / P:608 T:3380 8-37-625 CardDeleteFile(): SCARD_E_FILE_NOT_FOUND (0x80100024) /* P:608 T:3380 CardDeleteFile(): FAILED /* P:608 T:3380 8-37-625 CardReadFile(): BEGIN /* P:608 T:3380 CardReadFile(): Dir Name = mscp, File Name = cmapfile / / P:608 T:3380 CardReadFile(): cmapfile = 660031006500300035003000300030002D0031003600380038002D0034006200380063002D0039006500300066002D003000310061006200300066006200340062003800660037000000000000000000030000040000 / / P:608 T:3380 8-37-718 CardReadFile(): SUCCESS /* P:608 T:3380 8-37-718 CardWriteFile(): BEGIN /* P:608 T:3380 CardWriteFile(): Dir Name = ROOT, File Name = cardcf / / P:608 T:3380 CardWriteFile(): cardcf = 000001000500 / / P:608 T:3380 8-37-796 CardWriteFile(): SUCCESS /* P:608 T:3380 8-37-796 CardDeleteFile(): BEGIN /* P:608 T:3380 CardDeleteFile(): Dir Name = mscp, File Name = kxc00 / / P:608 T:3380 8-37-875 CardDeleteFile(): SCARD_E_FILE_NOT_FOUND (0x80100024) /* P:608 T:3380 CardDeleteFile(): FAILED /* P:608 T:3380 8-37-875 CardWriteFile(): BEGIN /* P:608 T:3380 CardWriteFile(): Dir Name = ROOT, File Name = cardcf / / P:608 T:3380 CardWriteFile(): cardcf = 000002000500 / / P:608 T:3380 8-37-953 CardWriteFile(): SUCCESS /* P:608 T:3380 8-37-953 CardDeleteContainer(): BEGIN /* P:608 T:3380 8-38-578 CardDeleteContainer(): SUCCESS /* P:608 T:3380 8-38-593 CardReadFile(): BEGIN /* P:608 T:3380 CardReadFile(): Dir Name = mscp, File Name = cmapfile / / P:608 T:3380 CardReadFile(): cmapfile = 660031006500300035003000300030002D0031003600380038002D0034006200380063002D0039006500300066002D003000310061006200300066006200340062003800660037000000000000000000030000040000 / / P:608 T:3380 8-38-687 CardReadFile(): SUCCESS /* P:608 T:3380 8-38-687 CardWriteFile(): BEGIN /* P:608 T:3380 CardWriteFile(): Dir Name = ROOT, File Name = cardcf / / P:608 T:3380 CardWriteFile(): cardcf = 000002000600 / / P:608 T:3380 8-38-781 CardWriteFile(): SUCCESS /* P:608 T:3380 8-38-781 CardWriteFile(): BEGIN /* P:608 T:3380 CardWriteFile(): Dir Name = mscp, File Name = cmapfile / / P:608 T:3380 CardWriteFile(): cmapfile = 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 / / P:608 T:3380 8-38-906 CardWriteFile(): SUCCESS /* P:608 T:5764 8-40-406 CardDeauthenticate(): BEGIN /* P:608 T:5764 8-40-421 CardDeauthenticate(): SUCCESS /* P:608 T:3380 8-40-671 CardDeleteContext(): BEGIN /* P:608 T:3380 8-40-687 CardDeleteContext(): SUCCESS in windows 7: /* P:3368 T:3800 17-39-515 CardAcquireContext(): BEGIN /* P:3368 T:3800 17-39-515 CardAcquireContext(): SUCCESS /* P:3368 T:3800 17-39-515 CardAcquireContext(): BEGIN /* P:3368 T:3800 17-39-515 CardAcquireContext(): SUCCESS /* P:3368 T:3800 17-39-531 CardAcquireContext(): BEGIN /* P:3368 T:3800 17-39-531 CardAcquireContext(): SUCCESS /* P:3368 T:3800 17-39-531 CardAcquireContext(): BEGIN /* P:3368 T:3800 17-39-531 CardAcquireContext(): SUCCESS /* P:3368 T:3800 17-41-187 CardAcquireContext(): BEGIN /* P:3368 T:3800 17-41-187 CardAcquireContext(): SUCCESS /* P:3368 T:3800 17-41-187 CardDeleteContext(): BEGIN /* P:3368 T:3800 17-41-187 CardDeleteContext(): SUCCESS /* P:3368 T:3800 17-41-187 CardAcquireContext(): BEGIN /* P:3368 T:3800 17-41-187 CardAcquireContext(): SUCCESS /* P:3368 T:3800 17-41-187 CardDeleteContext(): BEGIN /* P:3368 T:3800 17-41-203 CardDeleteContext(): SUCCESS /* P:3368 T:3800 17-41-203 CardAcquireContext(): BEGIN /* P:3368 T:3800 17-41-203 CardAcquireContext(): SUCCESS /* P:3368 T:3800 17-41-203 CardDeleteContext(): BEGIN /* P:3368 T:3800 17-41-203 CardDeleteContext(): SUCCESS /* P:3368 T:3800 17-41-203 CardAcquireContext(): BEGIN /* P:3368 T:3800 17-41-203 CardAcquireContext(): SUCCESS /* P:3368 T:3800 17-41-218 CardDeleteContext(): BEGIN /* P:3368 T:3800 17-41-218 CardDeleteContext(): SUCCESS /* P:3368 T:3800 17-41-218 CardAcquireContext(): BEGIN /* P:3368 T:3800 17-41-218 CardAcquireContext(): SUCCESS /* P:3368 T:3800 17-41-218 CardGetChallenge(): BEGIN /* P:3368 T:3800 CardGetChallenge(): Challenge = BF830855CDCA4F0D / / P:3368 T:3800 17-41-234 CardGetChallenge(): SUCCESS /* P:3368 T:3800 17-41-234 CardAuthenticateChallenge(): BEGIN /* P:3368 T:3800 CardAuthenticateChallenge(): Response = A2DB6F882D402D94 / / P:3368 T:3800 17-41-234 CardAuthenticateChallenge(): SUCCESS /* P:3368 T:3800 17-41-234 CardDeauthenticate(): BEGIN /* P:3368 T:3800 17-41-250 CardDeauthenticate(): SUCCESS /* P:3368 T:3800 17-41-250 CardAuthenticatePin(): BEGIN /* P:3368 T:3800 CardAuthenticatePin(): User PIN = 0000 / / P:3368 T:3800 17-41-265 CardAuthenticatePin(): SUCCESS /* P:3368 T:3800 17-41-265 CardDeauthenticate(): BEGIN /* P:3368 T:3800 17-41-265 CardDeauthenticate(): SUCCESS /* P:3368 T:3800 17-41-265 CardDeleteContext(): BEGIN /* P:3368 T:3800 17-41-281 CardDeleteContext(): SUCCESS /* P:3368 T:3800 17-41-281 CardAcquireContext(): BEGIN /* P:3368 T:3800 17-41-281 CardAcquireContext(): SUCCESS /* P:3368 T:3800 17-41-281 CardAuthenticatePin(): BEGIN /* P:3368 T:3800 CardAuthenticatePin(): User PIN = 0000 / / P:3368 T:3800 17-41-296 CardAuthenticatePin(): SUCCESS /* P:3368 T:3800 17-41-296 CardQueryCapabilities(): BEGIN /* P:3368 T:3800 17-41-296 CardQueryCapabilities(): SUCCESS /* P:3368 T:3800 17-41-296 CardAuthenticatePin(): BEGIN /* P:3368 T:3800 CardAuthenticatePin(): User PIN = 0000 / / P:3368 T:3800 17-41-312 CardAuthenticatePin(): SUCCESS /* P:3368 T:3800 17-41-312 CardDeauthenticate(): BEGIN /* P:3368 T:3800 17-41-328 CardDeauthenticate(): SUCCESS /* P:3368 T:3800 17-41-328 CardDeleteContext(): BEGIN /* P:3368 T:3800 17-41-328 CardDeleteContext(): SUCCESS /* P:3368 T:3800 17-41-359 CardAcquireContext(): BEGIN /* P:3368 T:3800 17-41-359 CardAcquireContext(): SUCCESS /* P:3368 T:3800 17-41-359 CardReadFile(): BEGIN /* P:3368 T:3800 CardReadFile(): Dir Name = ROOT, File Name = cardid / / P:3368 T:3800 CardReadFile(): cardid = 34363438653733652D346430342D3463 / / P:3368 T:3800 17-41-406 CardReadFile(): SUCCESS /* P:3368 T:3800 17-41-406 CardReadFile(): BEGIN /* P:3368 T:3800 CardReadFile(): Dir Name = ROOT, File Name = cardcf / / P:3368 T:3800 CardReadFile(): cardcf = 000000000000 / / P:3368 T:3800 17-41-453 CardReadFile(): SUCCESS /* P:3368 T:3800 17-41-453 CardReadFile(): BEGIN /* P:3368 T:3800 CardReadFile(): Dir Name = mscp, File Name = cmapfile / / P:3368 T:3800 17-41-531 CardReadFile(): BEGIN /* P:3368 T:3800 CardReadFile(): Dir Name = ROOT, File Name = cardcf / / P:3368 T:3800 CardReadFile(): cardcf = 000000000000 / / P:3368 T:3800 17-41-593 CardReadFile(): SUCCESS /* P:3368 T:3800 17-41-593 CardAuthenticatePin(): BEGIN /* P:3368 T:3800 CardAuthenticatePin(): User PIN = 0000 / / P:3368 T:3800 17-41-609 CardAuthenticatePin(): SUCCESS /* P:3368 T:3800 17-41-609 CardDeauthenticate(): BEGIN /* P:3368 T:3800 17-41-609 CardDeauthenticate(): SUCCESS /* P:3368 T:3800 17-41-609 CardDeleteContext(): BEGIN /* P:3368 T:3800 17-41-625 CardDeleteContext(): SUCCESS /* P:3368 T:3800 17-41-625 CardAcquireContext(): BEGIN /* P:3368 T:3800 17-41-625 CardAcquireContext(): SUCCESS /* P:3368 T:3800 17-41-625 CardReadFile(): BEGIN /* P:3368 T:3800 CardReadFile(): Dir Name = ROOT, File Name = cardid / / P:3368 T:3800 CardReadFile(): cardid = 34363438653733652D346430342D3463 / / P:3368 T:3800 17-41-671 CardReadFile(): SUCCESS /* P:3368 T:3800 17-41-687 CardReadFile(): BEGIN /* P:3368 T:3800 CardReadFile(): Dir Name = ROOT, File Name = cardcf / / P:3368 T:3800 CardReadFile(): cardcf = 000000000000 / / P:3368 T:3800 17-41-734 CardReadFile(): SUCCESS /* P:3368 T:3800 17-41-734 CardQueryFreeSpace(): BEGIN /* P:3368 T:3800 17-41-750 CardQueryFreeSpace(): SUCCESS /* P:3368 T:3800 17-41-750 CardAuthenticatePin(): BEGIN /* P:3368 T:3800 CardAuthenticatePin(): User PIN = 0000 / / P:3368 T:3800 17-41-765 CardAuthenticatePin(): SUCCESS /* P:3368 T:3800 17-41-765 CardWriteFile(): BEGIN /* P:3368 T:3800 CardWriteFile(): Dir Name = ROOT, File Name = cardcf / / P:3368 T:3800 CardWriteFile(): cardcf = 000000000100 / / P:3368 T:3800 17-41-828 CardWriteFile(): SUCCESS /* P:3368 T:3800 17-41-828 CardWriteFile(): BEGIN /* P:3368 T:3800 CardWriteFile(): Dir Name = mscp, File Name = cmapfile / / P:3368 T:3800 CardWriteFile(): cmapfile = 370062003800640030006200390031002D0063003600650064002D0034003000650033002D0062006100610037002D006200620032003800640063003800610035003300330032000000000000000000010000000000 / / P:3368 T:3800 17-42-218 CardWriteFile(): SUCCESS /* P:3368 T:3800 17-42-234 CardWriteFile(): BEGIN /* P:3368 T:3800 CardWriteFile(): Dir Name = ROOT, File Name = cardcf / / P:3368 T:3800 CardWriteFile(): cardcf = 000000000200 / / P:3368 T:3800 17-42-296 CardWriteFile(): SUCCESS /* P:3368 T:3800 17-42-296 CardWriteFile(): BEGIN /* P:3368 T:3800 CardWriteFile(): Dir Name = mscp, File Name = cmapfile / / P:3368 T:3800 CardWriteFile(): cmapfile = 370062003800640030006200390031002D0063003600650064002D0034003000650033002D0062006100610037002D006200620032003800640063003800610035003300330032000000000000000000030000000000 / / P:3368 T:3800 17-42-390 CardWriteFile(): SUCCESS /* P:3368 T:3800 17-42-406 CardQueryCapabilities(): BEGIN /* P:3368 T:3800 17-42-406 CardQueryCapabilities(): SUCCESS /* P:3368 T:3800 17-42-406 CardWriteFile(): BEGIN /* P:3368 T:3800 CardWriteFile(): Dir Name = ROOT, File Name = cardcf / / P:3368 T:3800 CardWriteFile(): cardcf = 000001000200 / / P:3368 T:3800 17-42-468 CardWriteFile(): SUCCESS /* P:3368 T:3800 17-42-468 CardCreateContainer(): BEGIN /* P:3368 T:3800 17-48-421 CardCreateContainer(): SUCCESS /* P:3368 T:3800 17-48-437 CardWriteFile(): BEGIN /* P:3368 T:3800 CardWriteFile(): Dir Name = ROOT, File Name = cardcf / / P:3368 T:3800 CardWriteFile(): cardcf = 000001000300 / / P:3368 T:3800 17-48-484 CardWriteFile(): SUCCESS /* P:3368 T:3800 17-48-500 CardWriteFile(): BEGIN /* P:3368 T:3800 CardWriteFile(): Dir Name = mscp, File Name = cmapfile / / P:3368 T:3800 CardWriteFile(): cmapfile = 370062003800640030006200390031002D0063003600650064002D0034003000650033002D0062006100610037002D006200620032003800640063003800610035003300330032000000000000000000030000040000 / / P:3368 T:3800 17-48-593 CardWriteFile(): SUCCESS /* P:3368 T:3800 17-48-593 CardGetContainerInfo(): BEGIN /* P:3368 T:3800 17-48-640 CardGetContainerInfo(): SUCCESS /* P:3368 T:288 17-50-140 CardDeauthenticate(): BEGIN /* P:3368 T:288 17-50-140 CardDeauthenticate(): SUCCESS /* P:3368 T:3800 17-50-140 CardReadFile(): BEGIN /* P:3368 T:3800 CardReadFile(): Dir Name = ROOT, File Name = cardid / / P:3368 T:3800 CardReadFile(): cardid = 34363438653733652D346430342D3463 / / P:3368 T:3800 17-50-187 CardReadFile(): SUCCESS /* P:3368 T:3800 17-50-187 CardReadFile(): BEGIN /* P:3368 T:3800 CardReadFile(): Dir Name = ROOT, File Name = cardcf / / P:3368 T:3800 CardReadFile(): cardcf = 000001000300 / / P:3368 T:3800 17-50-234 CardReadFile(): SUCCESS /* P:3368 T:3800 17-50-234 CardReadFile(): BEGIN /* P:3368 T:3800 CardReadFile(): Dir Name = ROOT, File Name = cardid / / P:3368 T:3800 CardReadFile(): cardid = 34363438653733652D346430342D3463 / / P:3368 T:3800 17-50-296 CardReadFile(): SUCCESS /* P:3368 T:3800 17-50-296 CardReadFile(): BEGIN /* P:3368 T:3800 CardReadFile(): Dir Name = ROOT, File Name = cardid / / P:3368 T:3800 CardReadFile(): cardid = 34363438653733652D346430342D3463 / / P:3368 T:3800 17-50-343 CardReadFile(): SUCCESS Comparing the two logs, it seems that in win 7 cmck always read file, read file, read file... and fail, never get into CardDeleteContainer or CardWriteFile :( Please help me!!!! Many thanks!

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• RhinoMocks Testing callback method

  - by joblot

  Hi All I have a service proxy class that makes asyn call to service operation. I use a callback method to pass results back to my view model. Doing functional testing of view model, I can mock service proxy to ensure methods are called on the proxy, but how can I ensure that callback method is called as well? With RhinoMocks I can test that events are handled and event raise events on the mocked object, but how can I test callbacks? ViewModel: public class MyViewModel { public void GetDataAsync() { // Use DI framework to get the object IMyServiceClient myServiceClient = IoC.Resolve<IMyServiceClient>(); myServiceClient.GetData(GetDataAsyncCallback); } private void GetDataAsyncCallback(Entity entity, ServiceError error) { // do something here... } } ServiceProxy: public class MyService : ClientBase, IMyServiceClient { // Constructor public NertiAdminServiceClient(string endpointConfigurationName, string remoteAddress) : base(endpointConfigurationName, remoteAddress) { } // IMyServiceClient member. public void GetData(Action<Entity, ServiceError> callback) { Channel.BeginGetData(EndGetData, callback); } private void EndGetData(IAsyncResult result) { Action<Entity, ServiceError> callback = result.AsyncState as Action<Entity, ServiceError>; ServiceError error; Entity results = Channel.EndGetData(out error, result); if (callback != null) callback(results, error); } } Thanks

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• What makes static initialization functions good, bad, or otherwise?

  - by Richard Levasseur

  Suppose you had code like this: _READERS = None _WRITERS = None def Init(num_readers, reader_params, num_writers, writer_params, ...args...): ...logic... _READERS = new ReaderPool(num_readers, reader_params) _WRITERS = new WriterPool(num_writers, writer_params) ...more logic... class Doer: def __init__(...args...): ... def Read(self, ...args...): c = _READERS.get() try: ...work with conn finally: _READERS.put(c) def Writer(...): ...similar to Read()... To me, this is a bad pattern to follow, some cons: Doers can be created without its preconditions being satisfied The code isn't easily testable because ConnPool can't be directly mocked out. Init has to be called right the first time. If its changed so it can be called multiple times, extra logic has to be added to check if variables are already defined, and lots of NULL values have to be passed around to skip re-initializing. In the event of threads, the above becomes more complicated by adding locking Globals aren't being used to communicate state (which isn't strictly bad, but a code smell) On the other hand, some pros: its very convenient to call Init(5, "user/pass", 2, "user/pass") It simple and "clean" Personally, I think the cons outweigh the pros, that is, testability and assured preconditions outweigh simplicity and convenience.

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• Problem with testing In App with sandbox test account

  - by Nava Carmon

  Hi, I created a test user account through the Manage User Accounts in iTunes Connect. When you create such an account you have to select a valid storefront for your account. I chose US Store. Now I signed out from the store in App Store settings on my device. Ran the application and tried to perform a purchase. I successfully login with my test account. After I press Confirm when entering my credentials I get an alert, that comes from SKPaymentTransactionStateFailed from the observer. It says "Your account is only valid for purchases in the US iTunes Store". The error state = 0 unknown. Second time when i try to perform the purchase, StoreKit only asks me for a password like the previous login was successful. After entering a password I can perform a purchase. My question is whether it's only because it's a testing account and the application is not actually on AppStore? What should I do to avoid this message or at least to continue the purchasing process? Thanks a lot, Nava

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• NullReferenceException when testing DefaultModelBinder.

  - by Byron Sommardahl

  I'm developing a project using BDD/TDD techniques and I'm trying my best to stay the course. A problem I just ran into is unit testing the DefaultModelBinder. I'm using mspec to write my tests. I have a class like this that I want to bind to: public class EmailMessageInput : IMessageInput { public object Recipient { get; set; } public string Body { get; set; } } Here's how I'm building my spec context. I'm building a fake form collection and stuffing it into a bindingContext object. public abstract class given_a_controller_with_valid_email_input : given_a_controller_context { Establish additional_context = () => { var form = new FormCollection { new NameValueCollection { { "EmailMessageInput.Recipient", "[email protected]"}, { "EmailMessageInput.Body", "Test body." } } }; _bindingContext = new ModelBindingContext { ModelName = "EmailMessageInput", ValueProvider = form }; _modelBinder = new DefaultModelBinder(); }; protected static ModelBindingContext _bindingContext; protected static DefaultModelBinder _modelBinder; } public abstract class given_a_controller_context { protected static MessageController _controller; Establish context = () => { _controller = new MessageController(); }; } Finally, my spec throws an null reference exception when I execute .BindModel() from inside one of my specs: Because of = () => { _model = _modelBinder.BindModel(_controller.ControllerContext, _bindingContext); }; Any clue what it could be? Feel free to ask me for more info, if needed. I might have taken something for granted.

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• PHP PCRE differences on testing and hosting servers

  - by Gary Pearman

  Hi all, I've got the following regular expression that works fine on my testing server, but just returns an empty string on my hosted server. $text = preg_replace('~[^\\pL\d]+~u', $use, $text); Now I'm pretty sure this comes down to the hosting server version of PCRE not being compiled with Unicode property support enabled. The differences in the two versions are as follows: My server: PCRE version 7.8 2008-09-05 Compiled with UTF-8 support Unicode properties support Newline sequence is LF \R matches all Unicode newlines Internal link size = 2 POSIX malloc threshold = 10 Default match limit = 10000000 Default recursion depth limit = 10000000 Match recursion uses stack Hosting server: PCRE version 4.5 01-December-2003 Compiled with UTF-8 support Newline character is LF Internal link size = 2 POSIX malloc threshold = 10 Default match limit = 10000000 Match recursion uses stack Also note that the version on the hosting server (the same version PHP is compiled against) is pretty old. What confuses me though, is that pcretest fails on both servers from the command line with re> ~[^\\pL\d]+~u ** Unknown option 'u' although this regexp works fine when run from PHP on my server. So, I guess my questions are does the regular expression fail on the hosting server because of the lack of Unicode properties? Or is there something else that I'm missing? Thanks all, Gaz.

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• Should Development / Testing / QA / Staging environments be similar?

  - by Walter White

  Hi all, After much time and effort, we're finally using maven to manage our application lifecycle for development. We still unfortunately use ANT to build an EAR before deploying to Test / QA / Staging. My question is, while we made that leap forward, developers are still free to do as they please for testing their code. One issue that we have is half our team is using Tomcat to test on and the other half is using Jetty. I prefer Jetty slightly over Tomcat, but regardless we using WAS for all the other environments. My question is, should we develop on the same application server we're deploying to? We've had numerous bugs come up from these differences in environments. Tomcat, Jetty, and WAS are different under the hood. My opinion is that we all should develop on what we're deploying to production with so we don't have the problem of well, it worked fine on my machine. While I prefer Jetty, I just assume we all work on the same environment even if it means deploying to WAS which is slow and cumbersome. What are your team dynamics like? Our lead developers stepped down from the team and development has been a free for all since then. Walter

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• [Perl] Testing for EAGAIN / EWOULDBLOCK on a recv

  - by Robert S. Barnes

  I'm testing a socket to see if it's still open: my $dummy = ''; my $ret = recv($sock, $dummy, 1, MSG_DONTWAIT | MSG_PEEK); if (!defined $ret || (length($dummy) == 0 && $! != EAGAIN && $! != EWOULDBLOCK )) { logerr("Broken pipe? ".__LINE__." $!"); } else { # socket still connected, reuse logerr(__LINE__.": $!"); return $sock; } I'm passing this code a socket I know for certain is open and it's always going through the first branch and logging "Broken pipe? 149 Resource temporarily unavailable". I don't understand how this is happening since "Resource temporarily unavailable" is supposed to correspond to EAGAIN as far as I know. I'm sure there must be something simple I'm missing. And yes, I know this is not a full proof way to test and I account for that.

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• Rhino Mocks Partial Mock

  - by dotnet crazy kid

  I am trying to test the logic from some existing classes. It is not possible to re-factor the classes at present as they are very complex and in production. What I want to do is create a mock object and test a method that internally calls another method that is very hard to mock. So I want to just set a behaviour for the secondary method call. But when I setup the behaviour for the method, the code of the method is invoked and fails. Am I missing something or is this just not possible to test without re-factoring the class? I have tried all the different mock types (Strick,Stub,Dynamic,Partial ect.) but they all end up calling the method when I try to set up the behaviour. using System; using MbUnit.Framework; using Rhino.Mocks; namespace MMBusinessObjects.Tests { [TestFixture] public class PartialMockExampleFixture { [Test] public void Simple_Partial_Mock_Test() { const string param = "anything"; //setup mocks MockRepository mocks = new MockRepository(); var mockTestClass = mocks.StrictMock<TestClass>(); //record beahviour *** actualy call into the real method stub *** Expect.Call(mockTestClass.MethodToMock(param)).Return(true); //never get to here mocks.ReplayAll(); //this is what i want to test Assert.IsTrue(mockTestClass.MethodIWantToTest(param)); } public class TestClass { public bool MethodToMock(string param) { //some logic that is very hard to mock throw new NotImplementedException(); } public bool MethodIWantToTest(string param) { //this method calls the if( MethodToMock(param) ) { //some logic i want to test } return true; } } } }

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• Creating Emulated iSCSI Target in a Lab/Testing Environment using Windows Server 2008 R2

  - by Brian McCleary

  We have a single server running Windows Server 2008 with Hyper-V installed running 5 virtual machines. I have purchased a second DELL R805 Server so that we can create a fail-over cluster to our current R805 that is currently in production. Right now, our R805 connects via iSCSI to a MD3000i iSCSI SAN. Before we try to roll out the second server and clustering to our production environment, I want to be able to test and "play with" the clustering features in our lab before rolling it out. The problem is that I don't want to spend a couple thousand dollars on another iSCSI SAN server just for testing. I already have two servers in my lab that are installed with Windows Server 2008 R2 64bit (one is the R805 and another spare desktop that was laying around) and with the Hyper-V roll enabled that should be ready to test with, but I don't have an iSCSI target to use as the Cluster Shared Volume. Is there anyway to install, either on a Hyper-V image or on a external spare computer that we have some sort of emulated iSCSI target? In our lab, we obviously don't need a real SAN, just something that we can test out how to setup the clustering properly outside of our production environment. Any advise is appreciated. FYI - I have read Jose Barret's blog on WUDSS at http://blogs.technet.com/josebda/archive/2008/01/07/installing-the-evaluation-version-of-wudss-2003-refresh-and-the-microsoft-iscsi-software-target-version-3-1-on-a-vm.aspx, but it seems awfully complex. I'm hoping for an easier solution.

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• Perl, strings, floats, unit testing and regexps!

  - by Chris R

  OK, as a preface this question potentially is 'stupider' than my normal level of question - however this problem has been annoying me for the last few days so I'll ask it anyway. I'll give a mock example of what my problem is so I can hope to generalize it to my current problem. #!/usr/bin/perl -w use strict; use Test::More 'no_plan'; my $fruit_string = 'Apples cost $1.50'; my ($fruit, $price) = $fruit_string =~ /(\w+)s cost \$(\d+\.\d+)/; # $price += 0; # Uncomment for Great Success is ($price, 1.50, 'Great Success'); Now when this is run I get the message # Failed test 'Great Success' # got: '1.50' # expected: '1.5' To make the test work - I either uncomment the commented line, or use is ($price, '1.50', 'Great Success'). Both options do not work for me - I'm testing a huge amount of nested data using Test::Deep and cmp_deeply. My question is, how can you extract a double from a regexp then use it immediately as a double - or if there is a better way altogether let me know - and feel free to tell me to take up gardening or something lol, learning Perl is hard.

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• Force screen size when testing embedded DOS app in Windows 7 command window

  - by tomlogic

  I'm doing some embedded DOS development with OpenWatcom (great Windows-hosted compiler for targeting 16-bit DOS applications). The target hardware has a 24x16 character screen (that supposedly emulates CGA to some degree), and I'm trying to get the CMD.EXE window on my Windows 7 machine to stay at a fixed 24x16 without any scroll bars. I've used both the window properties and MODE CON: COLS=24 LINES=16 to get the screen size that I wanted, but as soon as my application uses an INT10 BIOS calls to clear the screen, the mode jumps back to 80x24. Here's what I'm using to clear the screen: void cls(void) { // Clear screen and reset cursor position to (0,0) union REGS regs; regs.w.cx = 0; // Upper left regs.w.dx = 0x1018; // Lower right (of 16x24) regs.h.bh = 7; // Blank lines attribute (white text on black) regs.w.ax = 0x0600; // 06 = scroll up, AL=00 to clear int86( 0x10, &regs, &regs ); } Any ideas? I can still do my testing at 80x24 (or 80x25), but it doesn't entirely behave like the 24x16 mode.

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• What is the most elegant way to implement a business rule relating to a child collection in LINQ?

  - by AaronSieb

  I have two tables in my database: Wiki WikiId ... WikiUser WikiUserId (PK) WikiId UserId IsOwner ... These tables have a one (Wiki) to Many (WikiUser) relationship. How would I implement the following business rule in my LINQ entity classes: "A Wiki must have exactly one owner?" I've tried updating the tables as follows: Wiki WikiId (PK) OwnerId (FK to WikiUser) ... WikiUser WikiUserId (PK) WikiId UserId ... This enforces the constraint, but if I remove the owner's WikiUser record from the Wiki's WikiUser collection, I recieve an ugly SqlException. This seems like it would be difficult to catch and handle in the UI. Is there a way to perform this check before the SqlException is generated? A better way to structure my database? A way to catch and translate the SqlException to something more useful? Edit: I would prefer to keep the validation rules within the LINQ entity classes if possible. Edit 2: Some more details about my specific situation. In my application, the user should be able to remove users from the Wiki. They should be able to remove any user, except the user who is currently flagged as the "owner" of the Wiki (a Wiki must have exactly one owner at all times). In my control logic, I'd like to use something like this: wiki.WikiUsers.Remove(wikiUser); mRepository.Save(); And have any broken rules transferred to the UI layer. What I DON'T want to have to do is this: if(wikiUser.WikiUserId != wiki.OwnerId) { wiki.WikiUsers.Remove(wikiUser); mRepository.Save(); } else { //Handle errors. } I also don't particularly want to move the code to my repository (because there is nothing to indicate not to use the native Remove functions), so I also DON'T want code like this: mRepository.RemoveWikiUser(wiki, wikiUser) mRepository.Save(); This WOULD be acceptable: try { wiki.WikiUsers.Remove(wikiUser); mRepository.Save(); } catch(ValidationException ve) { //Display ve.Message } But this catches too many errors: try { wiki.WikiUsers.Remove(wikiUser); mRepository.Save(); } catch(SqlException se) { //Display se.Message } I would also PREFER NOT to explicitly call a business rule check (although it may become necessary): wiki.WIkiUsers.Remove(wikiUser); if(wiki.CheckRules()) { mRepository.Save(); } else { //Display broken rules }

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• What classes should I map against with NHibernate?

  - by apollodude217

  Currently, we use NHibernate to map business objects to database tables. Said business objects enforce business rules: The set accessors will throw an exception on the spot if the contract for that property is violated. Also, the properties enforce relationships with other objects (sometimes bidirectional!). Well, whenever NHibernate loads an object from the database (e.g. when ISession.Get(id) is called), the set accessors of the mapped properties are used to put the data into the object. What's good is that the middle tier of the application enforces business logic. What's bad is that the database does not. Sometimes crap finds its way into the database. If crap is loaded into the application, it bails (throws an exception). Sometimes it clearly should bail because it cannot do anything, but what if it can continue working? E.g., an admin tool that gathers real-time reports runs a high risk of failing unnecessarily instead of allowing an admin to even fix a (potential) problem. I don't have an example on me right now, but in some instances, letting NHibernate use the "front door" properties that also enforce relationships (especially bidi) leads to bugs. What are the best solutions? Currently, I will, on a per-property basis, create a "back door" just for NHibernate: public virtual int Blah {get {return _Blah;} set {/*enforces BR's*/}} protected virtual int _Blah {get {return blah;} set {blah = value;}} private int blah; I showed the above in C# 2 (no default properties) to demonstrate how this gets us basically 3 layers of, or views, to blah!!! While this certainly works, it does not seem ideal as it requires the BL to provide one (public) interface for the app-at-large, and another (protected) interface for the data access layer. There is an additional problem: To my knowledge, NHibernate does not give you a way to distinguish between the name of the property in the BL and the name of the property in the entity model (i.e. the name you use when you query, e.g. via HQL--whenever you give NHibernate the name (string) of a property). This becomes a problem when, at first, the BR's for some property Blah are no problem, so you refer to it in your O/R mapping... but then later, you have to add some BR's that do become a problem, so then you have to change your O/R mapping to use a new _Blah property, which breaks all existing queries using "Blah" (common problem with programming against strings). Has anyone solved these problems?!

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• Algorithm: Determine shape of two sectors delineated by an arbitrary path, and then fill one.

  - by Arseniy Banayev

  NOTE: This is a challenging problem for anybody who likes logic problems, etc. Consider a rectangular two-dimensional grid of height H and width W. Every space on the grid has a value, either 0 1 or 2. Initially, every space on the grid is a 0, except for the spaces along each of the four edges, which are initially a 2. Then consider an arbitrary path of adjacent (horizontally or vertically) grid spaces. The path begins on a 2 and ends on a different 2. Every space along the path is a 1. The path divides the grid into two "sectors" of 0 spaces. There is an object that rests on an unspecified 0 space. The "sector" that does NOT contain the object must be filled completely with 2. Define an algorithm that determines the spaces that must become 2 from 0, given an array (list) of values (0, 1, or 2) that correspond to the values in the grid, going from top to bottom and then from left to right. In other words, the element at index 0 in the array contains the value of the top-left space in the grid (initially a 2). The element at index 1 contains the value of the space in the grid that is in the left column, second from the top, and so forth. The element at index H contains the value of the space in the grid that is in the top row but second from the left, and so forth. Once the algorithm finishes and the empty "sector" is filled completely with 2s, the SAME algorithm must be sufficient to do the same process again. The second (and on) time, the path is still drawn from a 2 to a different 2, across spaces of 0, but the "grid" is smaller because the 2s that are surrounded by other 2s cannot be touched by the path (since the path is along spaces of 0). I thank whomever is able to figure this out for me, very very much. This does not have to be in a particular programming language; in fact, pseudo-code or just English is sufficient. Thanks again! If you have any questions, just leave a comment and I'll specify what needs to be specified.

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• Why is code quality not popular?

  - by Peter Kofler

  I like my code being in order, i.e. properly formatted, readable, designed, tested, checked for bugs, etc. In fact I am fanatic about it. (Maybe even more than fanatic...) But in my experience actions helping code quality are hardly implemented. (By code quality I mean the quality of the code you produce day to day. The whole topic of software quality with development processes and such is much broader and not the scope of this question.) Code quality does not seem popular. Some examples from my experience include Probably every Java developer knows JUnit, almost all languages implement xUnit frameworks, but in all companies I know, only very few proper unit tests existed (if at all). I know that it's not always possible to write unit tests due to technical limitations or pressing deadlines, but in the cases I saw, unit testing would have been an option. If a developer wanted to write some tests for his/her new code, he/she could do so. My conclusion is that developers do not want to write tests. Static code analysis is often played around in small projects, but not really used to enforce coding conventions or find possible errors in enterprise projects. Usually even compiler warnings like potential null pointer access are ignored. Conference speakers and magazines would talk a lot about EJB3.1, OSGI, Cloud and other new technologies, but hardly about new testing technologies or tools, new static code analysis approaches (e.g. SAT solving), development processes helping to maintain higher quality, how some nasty beast of legacy code was brought under test, ... (I did not attend many conferences and it propably looks different for conferences on agile topics, as unit testing and CI and such has a higer value there.) So why is code quality so unpopular/considered boring? EDIT: Thank your for your answers. Most of them concern unit testing (and has been discussed in a related question). But there are lots of other things that can be used to keep code quality high (see related question). Even if you are not able to use unit tests, you could use a daily build, add some static code analysis to your IDE or development process, try pair programming or enforce reviews of critical code.

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• How to test lib files in Rails?

  - by jerhinesmith

  I understand the benefit of putting classes, modules, etc. in the lib folder in Rails, but I haven't been able to find a clean way of testing these files. For the most part, it seems like unit tests would be the logical approach. I guess my question is: What is the "rails way" for testing lib files?

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• Perl Test::More, get stdout

  - by Mike

  Is there a way inside a Perl test case using Test::More to get the program's stdout For instance, if I do use Test::More; ok(foo()); #in the code I am testing sub foo() { print "hello" } "hello" will not be visible. I would like to see it. edit I know I can use diag(), however this would not work if the print is inside the code I am testing

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• How do you unit test Scala in Eclipse?

  - by Jørgen Fogh

  I am learning Scala and would like to set up integrated unit testing in Eclipse. As far as I can tell from googling, ScalaTest is the way to go, possibly in combination with JUnit. What are your experiences with unit testing Scala in Eclipse? Should I use the JUnit runner or something else?

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• Based on your development stack, which is easier for you and why? Debugging or logging?

  - by leeand00

  Please state if you are developing on the front end, back end, or if you are developing a mobile/desktop application. List your development stack Language, IDE, etc.. Unit Testing or no Unit Testing Be sure to include any AOP frameworks if used. Tell me if it is easier for you to use debugging or to using logging during development, and why you feel it is easier. I'm just trying to get a feel for why people choose debugging or logging based on their development stack.

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• What's the best way to test a P2P live streaming app?

  - by hbt

  Hey guys, I've been working on a P2P live streaming app and I'm having some trouble testing it properly. At the moment, I'm testing it using: 1) Another laptop + an external server 2) Multiple instances running on different ports Problem is: this is not exactly ready for production. Is there something like a simulator OR any of you guys worked on a torrent client, p2p client, live streaming solution and had to test it? Please let me know, Thanks, -hbt

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• Accessing different connection strings at runtime in ASP.NET MVC 1

  - by Neil T.

  I'm trying to implement integration testing in my ASP.NET MVC 1.0 solution. The technologies in use are LINQ-to-SQL, NUnit and WatiN. I recently discovered a pattern that will allow me to create a testing version of the database on the fly without modifying the development version of the database. I needed this behavior in order to run my user interface tests in WatiN that may modify the database. The plan is to modify the connection string in the Web.config file, and pass that new connection string to the DataContext constructor. This way, I don't have to add routes or modify my URLs in order to perform the integration testing. I've set up the project so that the test setup can modify the connection string to point to the test database when the tests are running. The connection string is stored in web.config. The problem I'm having is that when I try to run the tests, I get a NullReferenceException when trying to access the HTTPContext. From everything that I have read so far, the HTTPContext is only available within the context of a controller. Here is the code for the property that is supposed to give me the reference to the Web.config file: private System.Configuration.Configuration WebConfig { get { ExeConfigurationFileMap fileMap = new ExeConfigurationFileMap(); // NullReferenceException occurs on this line. fileMap.ExeConfigFilename = HttpContext.Current.Server.MapPath("~\\web.config"); System.Configuration.Configuration config = ConfigurationManager.OpenMappedExeConfiguration(fileMap, ConfigurationUserLevel.None); return config; } } Is there something that I am missing in order to make this work? Is there a better way to accomplish what I'm trying to achieve? UPDATE: I decided to abandon the modification of Web.config in lieu of a "request-scoped DataContext" pattern that I found here. From the looks of it, I believe it should give me the results I'm looking for. However, during the TextFixtureSetUp, I try to create a new copy of the database for testing purposes, and it fails silently. When I get to the tests, the repository still uses the production database connection string to load data.

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• Can I ensure all tests contain an assertion in test/unit?

  - by Andrew Grimm

  With test/unit, and minitest, is it possible to fail any test that doesn't contain an assertion, or would monkey-patching be required (for example, checking if the assertion count increased after each test was executed)? Background: I shouldn't write unit tests without assertions - at a minimum, I should use assert_nothing_raised if I'm smoke testing to indicate that I'm smoke testing. Usually I write tests that fail first, but I'm writing some regression tests. Alternatively, I could supply an incorrect expected value to see if the test is comparing the expected and actual value.

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