thodg/libgit2/tests-clar/refs/reflog/drop.c

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• Hash : 9094d30b
  Author :
  Date : 2012-11-23T11:41:56
  

  Reset all static variables to NULL in clar's __cleanup Without this change, any failed assertion in the second (or a later) test inside a test suite has a chance of double deleting memory, resulting in a heap corruption. See #1096 for details. This leaves alone the test cases where we "just" use cl_git_sandbox_init() and cl_git_sandbox_cleanup(). These methods already take good care to not double delete a repository. Fixes #1096

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• tests-clar/refs/reflog/drop.c

• #include "clar_libgit2.h"
  
  #include "reflog.h"
  
  static git_repository *g_repo;
  static git_reflog *g_reflog;
  static unsigned int entrycount;
  
  void test_refs_reflog_drop__initialize(void)
  {
  	git_reference *ref;
  	
  	g_repo = cl_git_sandbox_init("testrepo.git");
  	cl_git_pass(git_reference_lookup(&ref, g_repo, "HEAD"));
  	
  	git_reflog_read(&g_reflog, ref);
  	entrycount = git_reflog_entrycount(g_reflog);
  
  	git_reference_free(ref);
  }
  
  void test_refs_reflog_drop__cleanup(void)
  {
  	git_reflog_free(g_reflog);
  	g_reflog = NULL;
  
  	cl_git_sandbox_cleanup();
  }
  
  void test_refs_reflog_drop__dropping_a_non_exisiting_entry_from_the_log_returns_ENOTFOUND(void)
  {
  	cl_assert_equal_i(GIT_ENOTFOUND, git_reflog_drop(g_reflog, entrycount, 0));
  
  	cl_assert_equal_i(entrycount, git_reflog_entrycount(g_reflog));
  }
  
  void test_refs_reflog_drop__can_drop_an_entry(void)
  {
  	cl_assert(entrycount > 4);
  
  	cl_git_pass(git_reflog_drop(g_reflog, 2, 0));
  	cl_assert_equal_i(entrycount - 1, git_reflog_entrycount(g_reflog));
  }
  
  void test_refs_reflog_drop__can_drop_an_entry_and_rewrite_the_log_history(void)
  {
  	const git_reflog_entry *before_current;
  	const git_reflog_entry *after_current;
  	git_oid before_current_old_oid, before_current_cur_oid;
  
  	cl_assert(entrycount > 4);
  
  	before_current = git_reflog_entry_byindex(g_reflog, 1);
  
  	git_oid_cpy(&before_current_old_oid, &before_current->oid_old);
  	git_oid_cpy(&before_current_cur_oid, &before_current->oid_cur);
  
  	cl_git_pass(git_reflog_drop(g_reflog, 1, 1));
  
  	cl_assert_equal_i(entrycount - 1, git_reflog_entrycount(g_reflog));
  
  	after_current = git_reflog_entry_byindex(g_reflog, 0);
  
  	cl_assert_equal_i(0, git_oid_cmp(&before_current_old_oid, &after_current->oid_old));
  	cl_assert(0 != git_oid_cmp(&before_current_cur_oid, &after_current->oid_cur));
  }
  
  void test_refs_reflog_drop__can_drop_the_oldest_entry(void)
  {
  	const git_reflog_entry *entry;
  
  	cl_assert(entrycount > 2);
  
  	cl_git_pass(git_reflog_drop(g_reflog, entrycount - 1, 0));
  	cl_assert_equal_i(entrycount - 1, git_reflog_entrycount(g_reflog));
  
  	entry = git_reflog_entry_byindex(g_reflog, entrycount - 2);
  	cl_assert(git_oid_streq(&entry->oid_old, GIT_OID_HEX_ZERO) != 0);
  }
  
  void test_refs_reflog_drop__can_drop_the_oldest_entry_and_rewrite_the_log_history(void)
  {
  	const git_reflog_entry *entry;
  
  	cl_assert(entrycount > 2);
  
  	cl_git_pass(git_reflog_drop(g_reflog, entrycount - 1, 1));
  	cl_assert_equal_i(entrycount - 1, git_reflog_entrycount(g_reflog));
  
  	entry = git_reflog_entry_byindex(g_reflog, entrycount - 2);
  	cl_assert(git_oid_streq(&entry->oid_old, GIT_OID_HEX_ZERO) == 0);
  }
  
  void test_refs_reflog_drop__can_drop_all_the_entries(void)
  {
  	cl_assert(--entrycount > 0);
  
  	do 	{
  		cl_git_pass(git_reflog_drop(g_reflog, 0, 1));
  	} while (--entrycount > 0);
  
  	cl_git_pass(git_reflog_drop(g_reflog, 0, 1));
  
  	cl_assert_equal_i(0, git_reflog_entrycount(g_reflog));
  }
  
  void test_refs_reflog_drop__can_persist_deletion_on_disk(void)
  {
  	git_reference *ref;
  
  	cl_assert(entrycount > 2);
  
  	cl_git_pass(git_reference_lookup(&ref, g_repo, g_reflog->ref_name));
  	cl_git_pass(git_reflog_drop(g_reflog, 0, 1));
  	cl_assert_equal_i(entrycount - 1, git_reflog_entrycount(g_reflog));
  	cl_git_pass(git_reflog_write(g_reflog));
  
  	git_reflog_free(g_reflog);
  
  	git_reflog_read(&g_reflog, ref);
  	git_reference_free(ref);
  
  	cl_assert_equal_i(entrycount - 1, git_reflog_entrycount(g_reflog));
  }
  

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