thodg/libgit2/tests-clar/clar_libgit2.h

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• Hash : 9b62e40e
  Author :
  Date : 2012-05-07T11:28:26
  

  clar helper: don't dereference giterr_last() if it's NULL It can cause segfaults if the call didn't set an error

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• tests-clar/clar_libgit2.h

• #ifndef __CLAR_LIBGIT2__
  #define __CLAR_LIBGIT2__
  
  #include "clar.h"
  #include <git2.h>
  #include "common.h"
  
  /**
   * Special wrapper for `clar_must_pass` that passes
   * the last library error as the test failure message.
   *
   * Use this wrapper around all `git_` library calls that
   * return error codes!
   */
  #define cl_git_pass(expr) do { \
  	giterr_clear(); \
  	if ((expr) != 0) \
  		clar__assert(0, __FILE__, __LINE__, "Function call failed: " #expr, giterr_last() ? giterr_last()->message : NULL, 1); \
  	} while(0)
  
  /**
   * Wrapper for `clar_must_fail` -- this one is
   * just for consistency. Use with `git_` library
   * calls that are supposed to fail!
   */
  #define cl_git_fail(expr) cl_must_fail(expr)
  
  /*
   * Some utility macros for building long strings
   */
  #define REP4(STR)	 STR STR STR STR
  #define REP15(STR)	 REP4(STR) REP4(STR) REP4(STR) STR STR STR
  #define REP16(STR)	 REP4(REP4(STR))
  #define REP256(STR)  REP16(REP16(STR))
  #define REP1024(STR) REP4(REP256(STR))
  
  /* Write the contents of a buffer to disk */
  void cl_git_mkfile(const char *filename, const char *content);
  void cl_git_append2file(const char *filename, const char *new_content);
  void cl_git_rewritefile(const char *filename, const char *new_content);
  void cl_git_write2file(const char *filename, const char *new_content, int mode);
  
  /* Git sandbox setup helpers */
  
  git_repository *cl_git_sandbox_init(const char *sandbox);
  void cl_git_sandbox_cleanup(void);
  
  #endif
  

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