C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  module stub generator for testing?          C++Talk.NET Forum Index -> C Language (Moderated) View previous topic :: View next topic   Author Message Marco Guest Posted: Tue Dec 13, 2005 12:49 pm    Post subject: module stub generator for testing? I am looking for an open-source or free tool that parses a C header file (.h) for a module and creates a .c file with the functions stubbed out ( ideally with dummy returns for non-void). This will be used for testing purposes. I have googled with little success. ( for a C++ class example google "stubgen"). Any leads would be appreciated. thanks Marco -- comp.lang.c.moderated - moderation address: [email]clcm (AT) plethora (DOT) net[/email] -- you must have an appropriate newsgroups line in your header for your mail to be seen, or the newsgroup name in square brackets in the subject line. Sorry. Back to top usenet@zevv.nl Guest Posted: Tue Jan 10, 2006 3:35 am    Post subject: Re: module stub generator for testing? Quote: I am looking for an open-source or free tool that parses a C header file (.h) for a module and creates a .c file with the functions stubbed out ( ideally with dummy returns for non-void). This will be used for testing purposes. I have googled with little success. ( for a C++ class example google "stubgen"). Any leads would be appreciated. Not aware of anything that does precisely this, but it'd be trivial to write in either C or Perl. Even in less then 2 days. -- :wq ^X^Cy^K^X^C^C^C^C -- comp.lang.c.moderated - moderation address: [email]clcm (AT) plethora (DOT) net[/email] -- you must have an appropriate newsgroups line in your header for your mail to be seen, or the newsgroup name in square brackets in the subject line. Sorry. Back to top Chuck F. Guest Posted: Tue Jan 10, 2006 3:35 am    Post subject: Re: module stub generator for testing? Marco wrote: Quote: I am looking for an open-source or free tool that parses a C header file (.h) for a module and creates a .c file with the functions stubbed out ( ideally with dummy returns for non-void). This will be used for testing purposes. I have googled with little success. ( for a C++ class example google "stubgen"). C++ is off-topic here. The tool required is your editor. Simply eliminate the macros, typedefs, etc. and append a variant of: { return 0; } to each function header. Rename the resultant file from .h to .c. Add a line "#include <original.h>" at the head. -- Read about the Sony stealthware that is a security leak, phones home, and is generally illegal in most parts of the world. Also the apparent connivance of the various security software firms. http://www.schneier.com/blog/archives/2005/11/sonys_drm_rootk.html -- comp.lang.c.moderated - moderation address: [email]clcm (AT) plethora (DOT) net[/email] -- you must have an appropriate newsgroups line in your header for your mail to be seen, or the newsgroup name in square brackets in the subject line. Sorry. Back to top Malcolm Guest Posted: Tue Jan 10, 2006 3:35 am    Post subject: Re: module stub generator for testing? "Marco" <prenom_nomus (AT) yahoo (DOT) com> wrote Quote: I am looking for an open-source or free tool that parses a C header file (.h) for a module and creates a .c file with the functions stubbed out ( ideally with dummy returns for non-void). This will be used for testing purposes. I have googled with little success. ( for a C++ class example google "stubgen"). Any leads would be appreciated. Unfortunately it is not possible to write a general-case "stub generator". C functions are allowed to modify values passed to them by pointers, and the structures pointed to can be arbitrarily complex. Also, it is permitted to call functions by indirection. -- comp.lang.c.moderated - moderation address: [email]clcm (AT) plethora (DOT) net[/email] -- you must have an appropriate newsgroups line in your header for your mail to be seen, or the newsgroup name in square brackets in the subject line. Sorry. Back to top Michael Tiomkin Guest Posted: Tue Jan 10, 2006 3:35 am    Post subject: Re: module stub generator for testing? Marco wrote: Quote: I am looking for an open-source or free tool that parses a C header file (.h) for a module and creates a .c file with the functions stubbed out ( ideally with dummy returns for non-void). This will be used for testing purposes. I have googled with little success. ( for a C++ class example google "stubgen"). I think you can cannibalize this stubgen using a couple of scripts: 1. The first script adds a line class TemporaryUglyClass { before the .h file, and the line }; after the .h file. Don't change the file, just send all the stuff to to the standard output. It's just 3 lines of awk or shell script. 2. The 2nd script reads the result of 'stubgen', changes any "Method: TemporaryUglyClass::" string to :Function: " string and removes all other "TemporaryUglyClass::" strings. It's also 3 lines of awk. 3. The 3rd script runs the first script on your .h file, runs 'stubgen' on the result of the 1st script, and runs the 2nd script on the result of 'stubgen'. This can be one line of a shell script. 1st_scr Input_file_name | stubgen | 2nd_scr > stubs_file_name.c Michael -- comp.lang.c.moderated - moderation address: [email]clcm (AT) plethora (DOT) net[/email] -- you must have an appropriate newsgroups line in your header for your mail to be seen, or the newsgroup name in square brackets in the subject line. Sorry. Back to top Nick C Guest Posted: Tue Jan 10, 2006 3:36 am    Post subject: Re: module stub generator for testing? I would recomment getting a perl book. This is possible in a few lines... "Marco" <prenom_nomus (AT) yahoo (DOT) com> wrote Quote: I am looking for an open-source or free tool that parses a C header file (.h) for a module and creates a .c file with the functions stubbed out ( ideally with dummy returns for non-void). This will be used for testing purposes. I have googled with little success. ( for a C++ class example google "stubgen"). Any leads would be appreciated. thanks Marco -- comp.lang.c.moderated - moderation address: [email]clcm (AT) plethora (DOT) net[/email] -- you must have an appropriate newsgroups line in your header for your mail to be seen, or the newsgroup name in square brackets in the subject line. Sorry. -- comp.lang.c.moderated - moderation address: [email]clcm (AT) plethora (DOT) net[/email] -- you must have an appropriate newsgroups line in your header for your mail to be seen, or the newsgroup name in square brackets in the subject line. Sorry. Back to top Rahul Chandok Guest Posted: Tue Jan 10, 2006 3:38 am    Post subject: Re: module stub generator for testing? Hi, You can try the following logic : 1) Open your header file in Read mode. 2) Create the c stub file. (Open in write mode) 3) Read the header file line by line and search for character "(" or ")" in the line. 4) If you don't find this character then ignore the line, otherwise write the whole line to the C file, Don't write the last character ";" to the c file. 5) Then search for the void in the beggining of the line, if it is not there then write the following in the c file "{ return 0; }" else just write the following in the .c file "{ return; }" HTH Rahul -- comp.lang.c.moderated - moderation address: [email]clcm (AT) plethora (DOT) net[/email] -- you must have an appropriate newsgroups line in your header for your mail to be seen, or the newsgroup name in square brackets in the subject line. Sorry. Back to top WillerZ Guest Posted: Tue Jan 10, 2006 3:38 am    Post subject: Re: module stub generator for testing? Marco wrote: Quote: I am looking for an open-source or free tool that parses a C header file (.h) for a module and creates a .c file with the functions stubbed out ( ideally with dummy returns for non-void). This will be used for testing purposes. I have googled with little success. ( for a C++ class example google "stubgen"). Any leads would be appreciated. This 2-line unix shell trick will work to an extent (the extent is described below): prompt$ grep void module.h | sed -e 's!;! { }!' > module-stub.c prompt$ grep ';' module.h | grep -v '}' | grep -v typedef | sed -e 's!;! { }!' | sed -e 's!\([[:alnum:]]+\)\(.*\)!\1\2 { \1 a; return a; }!' >> module-stub.c It assumes that all of the function prototypes are single-lines and that they have parameter names and not just types. It also assumes that a couple of shell lines I wrote without testing are going to do what I think they do. You may just need to change the number of characters if it doesn't. The other caveat with this is that it'll break on any function which returns a non-typedef'd enum, struct or union -- it's quite easy to fix that if you're at a shell prompt where you can play around, but as I'm not it's likely I'd introduce (more) confusion if I tried. -- comp.lang.c.moderated - moderation address: [email]clcm (AT) plethora (DOT) net[/email] -- you must have an appropriate newsgroups line in your header for your mail to be seen, or the newsgroup name in square brackets in the subject line. Sorry. Back to top Jasen Betts Guest Posted: Wed Jan 25, 2006 11:10 am    Post subject: Re: module stub generator for testing? there is no simple general solution consider the following header file #ifndef __foo # define __foo # ifdef bar # define goo # define gux # endif /* ignore getchar(); */ # ifdef gux void blah(void); # undef gux # else void blah(int x); # endif #endif Bye. Jasen -- comp.lang.c.moderated - moderation address: [email]clcm (AT) plethora (DOT) net[/email] -- you must have an appropriate newsgroups line in your header for your mail to be seen, or the newsgroup name in square brackets in the subject line. Sorry. Back to top Francis Glassborow Guest Posted: Wed Jan 25, 2006 11:10 am    Post subject: Re: module stub generator for testing? In message <clcm-20060109-0027 (AT) plethora (DOT) net>, Rahul Chandok <chandok.r (AT) gmail (DOT) com> writes Quote: 5) Then search for the void in the beggining of the line, if it is not there then write the following in the c file "{ return 0; " struct X { int i; int j; } myfunc(); I think fails under your method. -- Francis Glassborow ACCU Author of 'You Can Do It!' see http://www.spellen.org/youcandoit For project ideas and contributions: http://www.spellen.org/youcandoit/projects -- comp.lang.c.moderated - moderation address: [email]clcm (AT) plethora (DOT) net[/email] -- you must have an appropriate newsgroups line in your header for your mail to be seen, or the newsgroup name in square brackets in the subject line. Sorry. Back to top Marco Guest Posted: Wed Jan 25, 2006 11:13 am    Post subject: Re: module stub generator for testing? update (and thanks to WillerZ for an alternative solution) by the way I consider "trivial" as maybe an hour or two to do, this wasn't because I only program in Perl once in a while. ============================================= ANN: C module stub generator There are times when you would like to compile and unit test your code on a Linux/Windows/Mac desktop when the target hardware or a hardware sim is not available. This script will allow you to create code stubs for RTOS calls, unimplemented code, etc. It can create a global variable for your unit test driver to manipulate the return from a stubbed function. It can be found at comp.sources.d , it is written in perl. Please note that you have to remove the REM on the first line (pretty obvious) and it has been noted that the posted code gets wrapped around incorrectly (try opening up your window width or get it via a newsreader). The getpwnam function is unimplemented on Windows so hack in something you like. I created this on Linux. If someone would like to host it, feel free to post a clean version on a web-site somewhere (I don't have a web-site). comp.sources.d listing here: http://tinyurl.com/atsqm enjoy -- comp.lang.c.moderated - moderation address: [email]clcm (AT) plethora (DOT) net[/email] -- you must have an appropriate newsgroups line in your header for your mail to be seen, or the newsgroup name in square brackets in the subject line. Sorry. Back to top        C++Talk.NET Forum Index -> C Language (Moderated) All times are GMT Page 1 of 1 Powered by phpBB © 2001, 2006 phpBB Group