text: #include "clar_libgit2.h"
  #include "tree.h"
  
  static const char *tree_oid = "1810dff58d8a660512d4832e740f692884338ccd";
  static git_repository *g_repo;
  
  void test_object_tree_walk__initialize(void)
  {
     g_repo = cl_git_sandbox_init("testrepo");
  }
  
  void test_object_tree_walk__cleanup(void)
  {
     cl_git_sandbox_cleanup();
  }
  
  static int treewalk_count_cb(
  	const char *root, const git_tree_entry *entry, void *payload)
  {
  	int *count = payload;
  
  	GIT_UNUSED(root);
  	GIT_UNUSED(entry);
  
  	(*count) += 1;
  
  	return 0;
  }
  
  void test_object_tree_walk__0(void)
  {
  	git_oid id;
  	git_tree *tree;
  	int ct;
  
  	git_oid_fromstr(&id, tree_oid);
  
  	cl_git_pass(git_tree_lookup(&tree, g_repo, &id));
  
  	ct = 0;
  	cl_git_pass(git_tree_walk(tree, GIT_TREEWALK_PRE, treewalk_count_cb, &ct));
  	cl_assert_equal_i(3, ct);
  
  	ct = 0;
  	cl_git_pass(git_tree_walk(tree, GIT_TREEWALK_POST, treewalk_count_cb, &ct));
  	cl_assert_equal_i(3, ct);
  
  	git_tree_free(tree);
  }
  
  
  static int treewalk_stop_cb(
  	const char *root, const git_tree_entry *entry, void *payload)
  {
  	int *count = payload;
  
  	GIT_UNUSED(root);
  	GIT_UNUSED(entry);
  
  	(*count) += 1;
  
  	return (*count == 2) ? -1 : 0;
  }
  
  static int treewalk_stop_immediately_cb(
  	const char *root, const git_tree_entry *entry, void *payload)
  {
  	GIT_UNUSED(root);
  	GIT_UNUSED(entry);
  	GIT_UNUSED(payload);
  	return -100;
  }
  
  void test_object_tree_walk__1(void)
  {
  	git_oid id;
  	git_tree *tree;
  	int ct;
  
  	git_oid_fromstr(&id, tree_oid);
  
  	cl_git_pass(git_tree_lookup(&tree, g_repo, &id));
  
  	ct = 0;
  	cl_assert_equal_i(
  		GIT_EUSER, git_tree_walk(tree, GIT_TREEWALK_PRE, treewalk_stop_cb, &ct));
  	cl_assert_equal_i(2, ct);
  
  	ct = 0;
  	cl_assert_equal_i(
  		GIT_EUSER, git_tree_walk(tree, GIT_TREEWALK_POST, treewalk_stop_cb, &ct));
  	cl_assert_equal_i(2, ct);
  
  	cl_assert_equal_i(
  		GIT_EUSER, git_tree_walk(
  			tree, GIT_TREEWALK_PRE, treewalk_stop_immediately_cb, NULL));
  
  	cl_assert_equal_i(
  		GIT_EUSER, git_tree_walk(
  			tree, GIT_TREEWALK_POST, treewalk_stop_immediately_cb, NULL));
  
  	git_tree_free(tree);
  }
  