thodg/libgit2/tests/config/snapshot.c

• Show log

  Commit

• Hash : 523032cd
  Author :
  Date : 2014-03-31T09:58:44
  

  config: refresh before reading a value
  
  With the isolation of complex reads, we can now try to refresh the
  on-disk file before reading a value from it.
  
  This changes the semantics a bit, as before we could be sure that a
  string we got from the configuration was valid until we wrote or
  refreshed. This is no longer the case, as a read can also invalidate the
  pointer.
  

Download

• tests/config/snapshot.c

• #include "clar_libgit2.h"
  
  void test_config_snapshot__create_snapshot(void)
  {
  	int32_t tmp;
  	git_config *cfg, *snapshot;
  	const char *filename = "config-ext-change";
  
  	cl_git_mkfile(filename, "[old]\nvalue = 5\n");
  
  	cl_git_pass(git_config_open_ondisk(&cfg, filename));
  
  	cl_git_pass(git_config_get_int32(&tmp, cfg, "old.value"));
  	cl_assert_equal_i(5, tmp);
  
  	cl_git_pass(git_config_snapshot(&snapshot, cfg));
  
  	/* Change the value on the file itself (simulate external process) */
  	cl_git_mkfile(filename, "[old]\nvalue = 56\n");
  
  	cl_git_pass(git_config_get_int32(&tmp, cfg, "old.value"));
  	cl_assert_equal_i(56, tmp);
  
  	cl_git_pass(git_config_get_int32(&tmp, snapshot, "old.value"));
  	cl_assert_equal_i(5, tmp);
  	
  	git_config_free(snapshot);
  	git_config_free(cfg);
  }
  
  static int count_me(const git_config_entry *entry, void *payload)
  {
  	int *n = (int *) payload;
  
  	GIT_UNUSED(entry);
  
  	(*n)++;
  
  	return 0;
  }
  
  void test_config_snapshot__multivar(void)
  {
  	int count = 0;
  	git_config *cfg, *snapshot;
  	const char *filename = "config-file";
  
  	cl_git_mkfile(filename, "[old]\nvalue = 5\nvalue = 6\n");
  
  	cl_git_pass(git_config_open_ondisk(&cfg, filename));
  	cl_git_pass(git_config_get_multivar_foreach(cfg, "old.value", NULL, count_me, &count));
  
  	cl_assert_equal_i(2, count);
  
  	cl_git_pass(git_config_snapshot(&snapshot, cfg));
  	git_config_free(cfg);
  
  	count = 0;
  	cl_git_pass(git_config_get_multivar_foreach(snapshot, "old.value", NULL, count_me, &count));
  
  	cl_assert_equal_i(2, count);
  
  	git_config_free(snapshot);
  }
  

Download