tests/t12-repo.c - third_party/libgit2 - Git at Google

 /*
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, version 2,
  * as published by the Free Software Foundation.
  *
  * In addition to the permissions in the GNU General Public License,
  * the authors give you unlimited permission to link the compiled
  * version of this file into combinations with other programs,
  * and to distribute those combinations without any restriction
  * coming from the use of this file.  (The General Public License
  * restrictions do apply in other respects; for example, they cover
  * modification of the file, and distribution when not linked into
  * a combined executable.)
  *
  * This file is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; see the file COPYING.  If not, write to
  * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 #include "test_lib.h"
 #include "test_helpers.h"

 #include "odb.h"
 #include "git2/odb_backend.h"
 #include "repository.h"

 typedef struct {
 	git_odb_backend base;
 	int position;
 } fake_backend;

 git_odb_backend *new_backend(int position)
 {
 	fake_backend *b;

 	b = git__malloc(sizeof(fake_backend));
 	if (b == NULL)
 		return NULL;

 	memset(b, 0x0, sizeof(fake_backend));
 	b->position = position;
 	return (git_odb_backend *)b;
 }

 int test_backend_sorting(git_odb *odb)
 {
 	unsigned int i;

 	for (i = 0; i < odb->backends.length; ++i) {
 		fake_backend *internal = *((fake_backend **)git_vector_get(&odb->backends, i));

 		if (internal == NULL)
 			return GIT_ERROR;

 		if (internal->position != (int)i)
 			return GIT_ERROR;
 	}

 	return GIT_SUCCESS;
 }

 BEGIN_TEST(odb0, "assure that ODB backends are properly sorted")
 	git_odb *odb;
 	must_pass(git_odb_new(&odb));
 	must_pass(git_odb_add_backend(odb, new_backend(0), 5));
 	must_pass(git_odb_add_backend(odb, new_backend(2), 3));
 	must_pass(git_odb_add_backend(odb, new_backend(1), 4));
 	must_pass(git_odb_add_backend(odb, new_backend(3), 1));
 	must_pass(test_backend_sorting(odb));
 	git_odb_close(odb);
 END_TEST

 BEGIN_TEST(odb1, "assure that alternate backends are properly sorted")
 	git_odb *odb;
 	must_pass(git_odb_new(&odb));
 	must_pass(git_odb_add_backend(odb, new_backend(0), 5));
 	must_pass(git_odb_add_backend(odb, new_backend(2), 3));
 	must_pass(git_odb_add_backend(odb, new_backend(1), 4));
 	must_pass(git_odb_add_backend(odb, new_backend(3), 1));
 	must_pass(git_odb_add_alternate(odb, new_backend(4), 5));
 	must_pass(git_odb_add_alternate(odb, new_backend(6), 3));
 	must_pass(git_odb_add_alternate(odb, new_backend(5), 4));
 	must_pass(git_odb_add_alternate(odb, new_backend(7), 1));
 	must_pass(test_backend_sorting(odb));
 	git_odb_close(odb);
 END_TEST


 #define STANDARD_REPOSITORY 0
 #define BARE_REPOSITORY 1

 static int ensure_repository_init(
 	const char *working_directory,
 	int repository_kind,
 	const char *expected_path_index,
 	const char *expected_path_repository,
 	const char *expected_working_directory)
 {
 	char path_odb[GIT_PATH_MAX];
 	git_repository *repo;

 	if (git_futils_isdir(working_directory) == GIT_SUCCESS)
 		return GIT_ERROR;

 	git_path_join(path_odb, expected_path_repository, GIT_OBJECTS_DIR);

 	if (git_repository_init(&repo, working_directory, repository_kind) < GIT_SUCCESS)
 		return GIT_ERROR;

 	if (repo->path_workdir != NULL || expected_working_directory != NULL) {
 		if (git__suffixcmp(repo->path_workdir, expected_working_directory) != 0)
 			goto cleanup;
 	}

 	if (git__suffixcmp(repo->path_odb, path_odb) != 0)
 		goto cleanup;

 	if (git__suffixcmp(repo->path_repository, expected_path_repository) != 0)
 		goto cleanup;

 	if (repo->path_index != NULL || expected_path_index != NULL) {
 		if (git__suffixcmp(repo->path_index, expected_path_index) != 0)
 			goto cleanup;

 #ifdef GIT_WIN32
 		if ((GetFileAttributes(repo->path_repository) & FILE_ATTRIBUTE_HIDDEN) == 0)
 			goto cleanup;
 #endif

 		if (git_repository_is_bare(repo) == 1)
 			goto cleanup;
 	} else if (git_repository_is_bare(repo) == 0)
 			goto cleanup;

 	if (git_repository_is_empty(repo) == 0)
 		goto cleanup;

 	git_repository_free(repo);
 	git_futils_rmdir_r(working_directory, 1);

 	return GIT_SUCCESS;

 cleanup:
 	git_repository_free(repo);
 	git_futils_rmdir_r(working_directory, 1);
 	return GIT_ERROR;
 }

 BEGIN_TEST(init0, "initialize a standard repo")
 	char path_index[GIT_PATH_MAX], path_repository[GIT_PATH_MAX];

 	git_path_join(path_repository, TEMP_REPO_FOLDER, GIT_DIR);
 	git_path_join(path_index, path_repository, GIT_INDEX_FILE);

 	must_pass(ensure_repository_init(TEMP_REPO_FOLDER, STANDARD_REPOSITORY, path_index, path_repository, TEMP_REPO_FOLDER));
 	must_pass(ensure_repository_init(TEMP_REPO_FOLDER_NS, STANDARD_REPOSITORY, path_index, path_repository, TEMP_REPO_FOLDER));
 END_TEST

 BEGIN_TEST(init1, "initialize a bare repo")
 	char path_repository[GIT_PATH_MAX];

 	git_path_join(path_repository, TEMP_REPO_FOLDER, "");

 	must_pass(ensure_repository_init(TEMP_REPO_FOLDER, BARE_REPOSITORY, NULL, path_repository, NULL));
 	must_pass(ensure_repository_init(TEMP_REPO_FOLDER_NS, BARE_REPOSITORY, NULL, path_repository, NULL));
 END_TEST

 BEGIN_TEST(init2, "Initialize and open a bare repo with a relative path escaping out of the current working directory")
 	char path_repository[GIT_PATH_MAX];
 	char current_workdir[GIT_PATH_MAX];
 	const int mode = 0755; /* or 0777 ? */
 	git_repository* repo;

 	must_pass(p_getcwd(current_workdir, sizeof(current_workdir)));

 	git_path_join(path_repository, TEMP_REPO_FOLDER, "a/b/c/");
 	must_pass(git_futils_mkdir_r(path_repository, mode));

 	must_pass(chdir(path_repository));

 	must_pass(git_repository_init(&repo, "../d/e.git", 1));
 	must_pass(git__suffixcmp(repo->path_repository, "/a/b/d/e.git/"));

 	git_repository_free(repo);

 	must_pass(git_repository_open(&repo, "../d/e.git"));

 	git_repository_free(repo);

 	must_pass(chdir(current_workdir));
 	must_pass(git_futils_rmdir_r(TEMP_REPO_FOLDER, 1));
 END_TEST

 #define EMPTY_BARE_REPOSITORY_FOLDER TEST_RESOURCES "/empty_bare.git/"

 BEGIN_TEST(open0, "Open a bare repository that has just been initialized by git")
 	git_repository *repo;

 	must_pass(copydir_recurs(EMPTY_BARE_REPOSITORY_FOLDER, TEMP_REPO_FOLDER));
 	must_pass(remove_placeholders(TEMP_REPO_FOLDER, "dummy-marker.txt"));

 	must_pass(git_repository_open(&repo, TEMP_REPO_FOLDER));
 	must_be_true(git_repository_path(repo, GIT_REPO_PATH) != NULL);
 	must_be_true(git_repository_path(repo, GIT_REPO_PATH_WORKDIR) == NULL);

 	git_repository_free(repo);
 	must_pass(git_futils_rmdir_r(TEMP_REPO_FOLDER, 1));
 END_TEST

 #define EMPTY_REPOSITORY_FOLDER TEST_RESOURCES "/empty_standard_repo/.gitted/"

 BEGIN_TEST(open1, "Open a standard repository that has just been initialized by git")
 	git_repository *repo;

 	must_pass(copydir_recurs(EMPTY_REPOSITORY_FOLDER, TEST_STD_REPO_FOLDER));
 	must_pass(remove_placeholders(TEST_STD_REPO_FOLDER, "dummy-marker.txt"));

 	must_pass(git_repository_open(&repo, TEST_STD_REPO_FOLDER));
 	must_be_true(git_repository_path(repo, GIT_REPO_PATH) != NULL);
 	must_be_true(git_repository_path(repo, GIT_REPO_PATH_WORKDIR) != NULL);

 	git_repository_free(repo);
 	must_pass(git_futils_rmdir_r(TEMP_REPO_FOLDER, 1));
 END_TEST


 BEGIN_TEST(open2, "Open a bare repository with a relative path escaping out of the current working directory")
 	char new_current_workdir[GIT_PATH_MAX];
 	char current_workdir[GIT_PATH_MAX];
 	char path_repository[GIT_PATH_MAX];

 	const int mode = 0755; /* or 0777 ? */
 	git_repository* repo;

 	/* Setup the repository to open */
 	must_pass(p_getcwd(current_workdir, sizeof(current_workdir)));
 	strcpy(path_repository, current_workdir);
 	git_path_join_n(path_repository, 3, path_repository, TEMP_REPO_FOLDER, "a/d/e.git");
 	must_pass(copydir_recurs(REPOSITORY_FOLDER, path_repository));

 	/* Change the current working directory */
 	git_path_join(new_current_workdir, TEMP_REPO_FOLDER, "a/b/c/");
 	must_pass(git_futils_mkdir_r(new_current_workdir, mode));
 	must_pass(chdir(new_current_workdir));

 	must_pass(git_repository_open(&repo, "../../d/e.git"));

 	git_repository_free(repo);

 	must_pass(chdir(current_workdir));
 	must_pass(git_futils_rmdir_r(TEMP_REPO_FOLDER, 1));
 END_TEST

 BEGIN_TEST(empty0, "test if a repository is empty or not")

 	git_repository *repo_empty, *repo_normal;

 	must_pass(git_repository_open(&repo_normal, REPOSITORY_FOLDER));
 	must_be_true(git_repository_is_empty(repo_normal) == 0);
 	git_repository_free(repo_normal);

 	must_pass(git_repository_open(&repo_empty, EMPTY_BARE_REPOSITORY_FOLDER));
 	must_be_true(git_repository_is_empty(repo_empty) == 1);
 	git_repository_free(repo_empty);
 END_TEST

 BEGIN_TEST(detached0, "test if HEAD is detached")
 	git_repository *repo;
 	git_reference *ref;
 	git_oid oid;

 	must_pass(git_repository_open(&repo, REPOSITORY_FOLDER));

 	must_be_true(git_repository_head_detached(repo) == 0);

 	/* detach the HEAD */
 	git_oid_fromstr(&oid, "c47800c7266a2be04c571c04d5a6614691ea99bd");
 	must_pass(git_reference_create_oid(&ref, repo, "HEAD", &oid, 1));
 	must_be_true(git_repository_head_detached(repo) == 1);

 	/* take the reop back to it's original state */
 	must_pass(git_reference_create_symbolic(&ref, repo, "HEAD", "refs/heads/master", 1));
 	must_be_true(git_repository_head_detached(repo) == 0);

 	git_repository_free(repo);
 END_TEST

 BEGIN_TEST(orphan0, "test if HEAD is orphan")
 	git_repository *repo;
 	git_reference *ref;

 	must_pass(git_repository_open(&repo, REPOSITORY_FOLDER));

 	must_be_true(git_repository_head_orphan(repo) == 0);

 	/* orphan HEAD */
 	must_pass(git_reference_create_symbolic(&ref, repo, "HEAD", "refs/heads/orphan", 1));
 	must_be_true(git_repository_head_orphan(repo) == 1);

 	/* take the reop back to it's original state */
 	must_pass(git_reference_create_symbolic(&ref, repo, "HEAD", "refs/heads/master", 1));
 	must_be_true(git_repository_head_orphan(repo) == 0);

 	git_repository_free(repo);
 END_TEST

 #define DISCOVER_FOLDER TEMP_REPO_FOLDER "discover.git"

 #define SUB_REPOSITORY_FOLDER_NAME "sub_repo"
 #define SUB_REPOSITORY_FOLDER DISCOVER_FOLDER "/" SUB_REPOSITORY_FOLDER_NAME
 #define SUB_REPOSITORY_FOLDER_SUB SUB_REPOSITORY_FOLDER "/sub"
 #define SUB_REPOSITORY_FOLDER_SUB_SUB SUB_REPOSITORY_FOLDER_SUB "/subsub"
 #define SUB_REPOSITORY_FOLDER_SUB_SUB_SUB SUB_REPOSITORY_FOLDER_SUB_SUB "/subsubsub"

 #define REPOSITORY_ALTERNATE_FOLDER DISCOVER_FOLDER "/alternate_sub_repo"
 #define REPOSITORY_ALTERNATE_FOLDER_SUB REPOSITORY_ALTERNATE_FOLDER "/sub"
 #define REPOSITORY_ALTERNATE_FOLDER_SUB_SUB REPOSITORY_ALTERNATE_FOLDER_SUB "/subsub"
 #define REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB REPOSITORY_ALTERNATE_FOLDER_SUB_SUB "/subsubsub"

 #define ALTERNATE_MALFORMED_FOLDER1 DISCOVER_FOLDER "/alternate_malformed_repo1"
 #define ALTERNATE_MALFORMED_FOLDER2 DISCOVER_FOLDER "/alternate_malformed_repo2"
 #define ALTERNATE_MALFORMED_FOLDER3 DISCOVER_FOLDER "/alternate_malformed_repo3"
 #define ALTERNATE_NOT_FOUND_FOLDER DISCOVER_FOLDER "/alternate_not_found_repo"

 static int ensure_repository_discover(const char *start_path, const char *ceiling_dirs, const char *expected_path)
 {
 	int error;
 	char found_path[GIT_PATH_MAX];

 	error = git_repository_discover(found_path, sizeof(found_path), start_path, 0, ceiling_dirs);
 	//across_fs is always 0 as we can't automate the filesystem change tests

 	if (error < GIT_SUCCESS)
 		return error;

 	return strcmp(found_path, expected_path) ? GIT_ERROR : GIT_SUCCESS;
 }

 static int write_file(const char *path, const char *content)
 {
 	int error;
 	git_file file;

 	if (git_futils_exists(path) == GIT_SUCCESS) {
 		error = p_unlink(path);

 		if (error < GIT_SUCCESS)
 			return error;
 	}

 	file = git_futils_creat_withpath(path, 0644);
 	if (file < GIT_SUCCESS)
 		return file;

 	error = p_write(file, content, strlen(content) * sizeof(char));

 	p_close(file);

 	return error;
 }

 //no check is performed on ceiling_dirs length, so be sure it's long enough
 static int append_ceiling_dir(char *ceiling_dirs, const char *path)
 {
 	int len = strlen(ceiling_dirs);
 	int error;

 	error = git_path_prettify_dir(ceiling_dirs + len + (len ? 1 : 0), path, NULL);
 	if (error < GIT_SUCCESS)
 		return git__rethrow(error, "Failed to append ceiling directory.");

 	if (len)
 		ceiling_dirs[len] = GIT_PATH_LIST_SEPARATOR;

 	return GIT_SUCCESS;
 }

 BEGIN_TEST(discover0, "test discover")
 	git_repository *repo;
 	char ceiling_dirs[GIT_PATH_MAX * 2] = "";
 	char repository_path[GIT_PATH_MAX];
 	char sub_repository_path[GIT_PATH_MAX];
 	char found_path[GIT_PATH_MAX];
 	int mode = 0755;

 	git_futils_mkdir_r(DISCOVER_FOLDER, mode);
 	must_pass(append_ceiling_dir(ceiling_dirs, TEMP_REPO_FOLDER));

 	must_be_true(git_repository_discover(repository_path, sizeof(repository_path), DISCOVER_FOLDER, 0, ceiling_dirs) == GIT_ENOTAREPO);

 	must_pass(git_repository_init(&repo, DISCOVER_FOLDER, 1));
 	must_pass(git_repository_discover(repository_path, sizeof(repository_path), DISCOVER_FOLDER, 0, ceiling_dirs));
 	git_repository_free(repo);

 	must_pass(git_repository_init(&repo, SUB_REPOSITORY_FOLDER, 0));
 	must_pass(git_futils_mkdir_r(SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, mode));
 	must_pass(git_repository_discover(sub_repository_path, sizeof(sub_repository_path), SUB_REPOSITORY_FOLDER, 0, ceiling_dirs));

 	must_pass(git_futils_mkdir_r(SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, mode));
 	must_pass(ensure_repository_discover(SUB_REPOSITORY_FOLDER_SUB, ceiling_dirs, sub_repository_path));
 	must_pass(ensure_repository_discover(SUB_REPOSITORY_FOLDER_SUB_SUB, ceiling_dirs, sub_repository_path));
 	must_pass(ensure_repository_discover(SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, ceiling_dirs, sub_repository_path));

 	must_pass(git_futils_mkdir_r(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB, mode));
 	must_pass(write_file(REPOSITORY_ALTERNATE_FOLDER "/" DOT_GIT, "gitdir: ../" SUB_REPOSITORY_FOLDER_NAME "/" DOT_GIT));
 	must_pass(write_file(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB "/" DOT_GIT, "gitdir: ../../../" SUB_REPOSITORY_FOLDER_NAME "/" DOT_GIT));
 	must_pass(write_file(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB "/" DOT_GIT, "gitdir: ../../../../"));
 	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER, ceiling_dirs, sub_repository_path));
 	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB, ceiling_dirs, sub_repository_path));
 	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB, ceiling_dirs, sub_repository_path));
 	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB, ceiling_dirs, repository_path));

 	must_pass(git_futils_mkdir_r(ALTERNATE_MALFORMED_FOLDER1, mode));
 	must_pass(write_file(ALTERNATE_MALFORMED_FOLDER1 "/" DOT_GIT, "Anything but not gitdir:"));
 	must_pass(git_futils_mkdir_r(ALTERNATE_MALFORMED_FOLDER2, mode));
 	must_pass(write_file(ALTERNATE_MALFORMED_FOLDER2 "/" DOT_GIT, "gitdir:"));
 	must_pass(git_futils_mkdir_r(ALTERNATE_MALFORMED_FOLDER3, mode));
 	must_pass(write_file(ALTERNATE_MALFORMED_FOLDER3 "/" DOT_GIT, "gitdir: \n\n\n"));
 	must_pass(git_futils_mkdir_r(ALTERNATE_NOT_FOUND_FOLDER, mode));
 	must_pass(write_file(ALTERNATE_NOT_FOUND_FOLDER "/" DOT_GIT, "gitdir: a_repository_that_surely_does_not_exist"));
 	must_fail(git_repository_discover(found_path, sizeof(found_path), ALTERNATE_MALFORMED_FOLDER1, 0, ceiling_dirs));
 	must_fail(git_repository_discover(found_path, sizeof(found_path), ALTERNATE_MALFORMED_FOLDER2, 0, ceiling_dirs));
 	must_fail(git_repository_discover(found_path, sizeof(found_path), ALTERNATE_MALFORMED_FOLDER3, 0, ceiling_dirs));
 	must_fail(git_repository_discover(found_path, sizeof(found_path), ALTERNATE_NOT_FOUND_FOLDER, 0, ceiling_dirs));

 	must_pass(append_ceiling_dir(ceiling_dirs, SUB_REPOSITORY_FOLDER));
 	//this must pass as ceiling_directories cannot predent the current
 	//working directory to be checked
 	must_pass(git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER, 0, ceiling_dirs));
 	must_fail(git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER_SUB, 0, ceiling_dirs));
 	must_fail(git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER_SUB_SUB, 0, ceiling_dirs));
 	must_fail(git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, 0, ceiling_dirs));

 	//.gitfile redirection should not be affected by ceiling directories
 	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER, ceiling_dirs, sub_repository_path));
 	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB, ceiling_dirs, sub_repository_path));
 	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB, ceiling_dirs, sub_repository_path));
 	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB, ceiling_dirs, repository_path));

 	must_pass(git_futils_rmdir_r(TEMP_REPO_FOLDER, 1));
 	git_repository_free(repo);
 END_TEST

 BEGIN_SUITE(repository)
 	ADD_TEST(odb0);
 	ADD_TEST(odb1);
 	ADD_TEST(init0);
 	ADD_TEST(init1);
 	ADD_TEST(init2);
 	ADD_TEST(open0);
 	ADD_TEST(open1);
 	ADD_TEST(open2);
 	ADD_TEST(empty0);
 	ADD_TEST(detached0);
 	ADD_TEST(orphan0);
 	ADD_TEST(discover0);
 END_SUITE
	/*
	* This file is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License, version 2,
	* as published by the Free Software Foundation.
	*
	* In addition to the permissions in the GNU General Public License,
	* the authors give you unlimited permission to link the compiled
	* version of this file into combinations with other programs,
	* and to distribute those combinations without any restriction
	* coming from the use of this file. (The General Public License
	* restrictions do apply in other respects; for example, they cover
	* modification of the file, and distribution when not linked into
	* a combined executable.)
	*
	* This file is distributed in the hope that it will be useful, but
	* WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; see the file COPYING. If not, write to
	* the Free Software Foundation, 51 Franklin Street, Fifth Floor,
	* Boston, MA 02110-1301, USA.
	*/
	#include "test_lib.h"
	#include "test_helpers.h"

	#include "odb.h"
	#include "git2/odb_backend.h"
	#include "repository.h"

	typedef struct {
	git_odb_backend base;
	int position;
	} fake_backend;

	git_odb_backend *new_backend(int position)
	{
	fake_backend *b;

	b = git__malloc(sizeof(fake_backend));
	if (b == NULL)
	return NULL;

	memset(b, 0x0, sizeof(fake_backend));
	b->position = position;
	return (git_odb_backend *)b;
	}

	int test_backend_sorting(git_odb *odb)
	{
	unsigned int i;

	for (i = 0; i < odb->backends.length; ++i) {
	fake_backend internal = ((fake_backend **)git_vector_get(&odb->backends, i));

	if (internal == NULL)
	return GIT_ERROR;

	if (internal->position != (int)i)
	return GIT_ERROR;
	}

	return GIT_SUCCESS;
	}

	BEGIN_TEST(odb0, "assure that ODB backends are properly sorted")
	git_odb *odb;
	must_pass(git_odb_new(&odb));
	must_pass(git_odb_add_backend(odb, new_backend(0), 5));
	must_pass(git_odb_add_backend(odb, new_backend(2), 3));
	must_pass(git_odb_add_backend(odb, new_backend(1), 4));
	must_pass(git_odb_add_backend(odb, new_backend(3), 1));
	must_pass(test_backend_sorting(odb));
	git_odb_close(odb);
	END_TEST

	BEGIN_TEST(odb1, "assure that alternate backends are properly sorted")
	git_odb *odb;
	must_pass(git_odb_new(&odb));
	must_pass(git_odb_add_backend(odb, new_backend(0), 5));
	must_pass(git_odb_add_backend(odb, new_backend(2), 3));
	must_pass(git_odb_add_backend(odb, new_backend(1), 4));
	must_pass(git_odb_add_backend(odb, new_backend(3), 1));
	must_pass(git_odb_add_alternate(odb, new_backend(4), 5));
	must_pass(git_odb_add_alternate(odb, new_backend(6), 3));
	must_pass(git_odb_add_alternate(odb, new_backend(5), 4));
	must_pass(git_odb_add_alternate(odb, new_backend(7), 1));
	must_pass(test_backend_sorting(odb));
	git_odb_close(odb);
	END_TEST


	#define STANDARD_REPOSITORY 0
	#define BARE_REPOSITORY 1

	static int ensure_repository_init(
	const char *working_directory,
	int repository_kind,
	const char *expected_path_index,
	const char *expected_path_repository,
	const char *expected_working_directory)
	{
	char path_odb[GIT_PATH_MAX];
	git_repository *repo;

	if (git_futils_isdir(working_directory) == GIT_SUCCESS)
	return GIT_ERROR;

	git_path_join(path_odb, expected_path_repository, GIT_OBJECTS_DIR);

	if (git_repository_init(&repo, working_directory, repository_kind) < GIT_SUCCESS)
	return GIT_ERROR;

	if (repo->path_workdir != NULL \|\| expected_working_directory != NULL) {
	if (git__suffixcmp(repo->path_workdir, expected_working_directory) != 0)
	goto cleanup;
	}

	if (git__suffixcmp(repo->path_odb, path_odb) != 0)
	goto cleanup;

	if (git__suffixcmp(repo->path_repository, expected_path_repository) != 0)
	goto cleanup;

	if (repo->path_index != NULL \|\| expected_path_index != NULL) {
	if (git__suffixcmp(repo->path_index, expected_path_index) != 0)
	goto cleanup;

	#ifdef GIT_WIN32
	if ((GetFileAttributes(repo->path_repository) & FILE_ATTRIBUTE_HIDDEN) == 0)
	goto cleanup;
	#endif

	if (git_repository_is_bare(repo) == 1)
	goto cleanup;
	} else if (git_repository_is_bare(repo) == 0)
	goto cleanup;

	if (git_repository_is_empty(repo) == 0)
	goto cleanup;

	git_repository_free(repo);
	git_futils_rmdir_r(working_directory, 1);

	return GIT_SUCCESS;

	cleanup:
	git_repository_free(repo);
	git_futils_rmdir_r(working_directory, 1);
	return GIT_ERROR;
	}

	BEGIN_TEST(init0, "initialize a standard repo")
	char path_index[GIT_PATH_MAX], path_repository[GIT_PATH_MAX];

	git_path_join(path_repository, TEMP_REPO_FOLDER, GIT_DIR);
	git_path_join(path_index, path_repository, GIT_INDEX_FILE);

	must_pass(ensure_repository_init(TEMP_REPO_FOLDER, STANDARD_REPOSITORY, path_index, path_repository, TEMP_REPO_FOLDER));
	must_pass(ensure_repository_init(TEMP_REPO_FOLDER_NS, STANDARD_REPOSITORY, path_index, path_repository, TEMP_REPO_FOLDER));
	END_TEST

	BEGIN_TEST(init1, "initialize a bare repo")
	char path_repository[GIT_PATH_MAX];

	git_path_join(path_repository, TEMP_REPO_FOLDER, "");

	must_pass(ensure_repository_init(TEMP_REPO_FOLDER, BARE_REPOSITORY, NULL, path_repository, NULL));
	must_pass(ensure_repository_init(TEMP_REPO_FOLDER_NS, BARE_REPOSITORY, NULL, path_repository, NULL));
	END_TEST

	BEGIN_TEST(init2, "Initialize and open a bare repo with a relative path escaping out of the current working directory")
	char path_repository[GIT_PATH_MAX];
	char current_workdir[GIT_PATH_MAX];
	const int mode = 0755; /* or 0777 ? */
	git_repository* repo;

	must_pass(p_getcwd(current_workdir, sizeof(current_workdir)));

	git_path_join(path_repository, TEMP_REPO_FOLDER, "a/b/c/");
	must_pass(git_futils_mkdir_r(path_repository, mode));

	must_pass(chdir(path_repository));

	must_pass(git_repository_init(&repo, "../d/e.git", 1));
	must_pass(git__suffixcmp(repo->path_repository, "/a/b/d/e.git/"));

	git_repository_free(repo);

	must_pass(git_repository_open(&repo, "../d/e.git"));

	git_repository_free(repo);

	must_pass(chdir(current_workdir));
	must_pass(git_futils_rmdir_r(TEMP_REPO_FOLDER, 1));
	END_TEST

	#define EMPTY_BARE_REPOSITORY_FOLDER TEST_RESOURCES "/empty_bare.git/"

	BEGIN_TEST(open0, "Open a bare repository that has just been initialized by git")
	git_repository *repo;

	must_pass(copydir_recurs(EMPTY_BARE_REPOSITORY_FOLDER, TEMP_REPO_FOLDER));
	must_pass(remove_placeholders(TEMP_REPO_FOLDER, "dummy-marker.txt"));

	must_pass(git_repository_open(&repo, TEMP_REPO_FOLDER));
	must_be_true(git_repository_path(repo, GIT_REPO_PATH) != NULL);
	must_be_true(git_repository_path(repo, GIT_REPO_PATH_WORKDIR) == NULL);

	git_repository_free(repo);
	must_pass(git_futils_rmdir_r(TEMP_REPO_FOLDER, 1));
	END_TEST

	#define EMPTY_REPOSITORY_FOLDER TEST_RESOURCES "/empty_standard_repo/.gitted/"

	BEGIN_TEST(open1, "Open a standard repository that has just been initialized by git")
	git_repository *repo;

	must_pass(copydir_recurs(EMPTY_REPOSITORY_FOLDER, TEST_STD_REPO_FOLDER));
	must_pass(remove_placeholders(TEST_STD_REPO_FOLDER, "dummy-marker.txt"));

	must_pass(git_repository_open(&repo, TEST_STD_REPO_FOLDER));
	must_be_true(git_repository_path(repo, GIT_REPO_PATH) != NULL);
	must_be_true(git_repository_path(repo, GIT_REPO_PATH_WORKDIR) != NULL);

	git_repository_free(repo);
	must_pass(git_futils_rmdir_r(TEMP_REPO_FOLDER, 1));
	END_TEST


	BEGIN_TEST(open2, "Open a bare repository with a relative path escaping out of the current working directory")
	char new_current_workdir[GIT_PATH_MAX];
	char current_workdir[GIT_PATH_MAX];
	char path_repository[GIT_PATH_MAX];

	const int mode = 0755; /* or 0777 ? */
	git_repository* repo;

	/* Setup the repository to open */
	must_pass(p_getcwd(current_workdir, sizeof(current_workdir)));
	strcpy(path_repository, current_workdir);
	git_path_join_n(path_repository, 3, path_repository, TEMP_REPO_FOLDER, "a/d/e.git");
	must_pass(copydir_recurs(REPOSITORY_FOLDER, path_repository));

	/* Change the current working directory */
	git_path_join(new_current_workdir, TEMP_REPO_FOLDER, "a/b/c/");
	must_pass(git_futils_mkdir_r(new_current_workdir, mode));
	must_pass(chdir(new_current_workdir));

	must_pass(git_repository_open(&repo, "../../d/e.git"));

	git_repository_free(repo);

	must_pass(chdir(current_workdir));
	must_pass(git_futils_rmdir_r(TEMP_REPO_FOLDER, 1));
	END_TEST

	BEGIN_TEST(empty0, "test if a repository is empty or not")

	git_repository repo_empty, repo_normal;

	must_pass(git_repository_open(&repo_normal, REPOSITORY_FOLDER));
	must_be_true(git_repository_is_empty(repo_normal) == 0);
	git_repository_free(repo_normal);

	must_pass(git_repository_open(&repo_empty, EMPTY_BARE_REPOSITORY_FOLDER));
	must_be_true(git_repository_is_empty(repo_empty) == 1);
	git_repository_free(repo_empty);
	END_TEST

	BEGIN_TEST(detached0, "test if HEAD is detached")
	git_repository *repo;
	git_reference *ref;
	git_oid oid;

	must_pass(git_repository_open(&repo, REPOSITORY_FOLDER));

	must_be_true(git_repository_head_detached(repo) == 0);

	/* detach the HEAD */
	git_oid_fromstr(&oid, "c47800c7266a2be04c571c04d5a6614691ea99bd");
	must_pass(git_reference_create_oid(&ref, repo, "HEAD", &oid, 1));
	must_be_true(git_repository_head_detached(repo) == 1);

	/* take the reop back to it's original state */
	must_pass(git_reference_create_symbolic(&ref, repo, "HEAD", "refs/heads/master", 1));
	must_be_true(git_repository_head_detached(repo) == 0);

	git_repository_free(repo);
	END_TEST

	BEGIN_TEST(orphan0, "test if HEAD is orphan")
	git_repository *repo;
	git_reference *ref;

	must_pass(git_repository_open(&repo, REPOSITORY_FOLDER));

	must_be_true(git_repository_head_orphan(repo) == 0);

	/* orphan HEAD */
	must_pass(git_reference_create_symbolic(&ref, repo, "HEAD", "refs/heads/orphan", 1));
	must_be_true(git_repository_head_orphan(repo) == 1);

	/* take the reop back to it's original state */
	must_pass(git_reference_create_symbolic(&ref, repo, "HEAD", "refs/heads/master", 1));
	must_be_true(git_repository_head_orphan(repo) == 0);

	git_repository_free(repo);
	END_TEST

	#define DISCOVER_FOLDER TEMP_REPO_FOLDER "discover.git"

	#define SUB_REPOSITORY_FOLDER_NAME "sub_repo"
	#define SUB_REPOSITORY_FOLDER DISCOVER_FOLDER "/" SUB_REPOSITORY_FOLDER_NAME
	#define SUB_REPOSITORY_FOLDER_SUB SUB_REPOSITORY_FOLDER "/sub"
	#define SUB_REPOSITORY_FOLDER_SUB_SUB SUB_REPOSITORY_FOLDER_SUB "/subsub"
	#define SUB_REPOSITORY_FOLDER_SUB_SUB_SUB SUB_REPOSITORY_FOLDER_SUB_SUB "/subsubsub"

	#define REPOSITORY_ALTERNATE_FOLDER DISCOVER_FOLDER "/alternate_sub_repo"
	#define REPOSITORY_ALTERNATE_FOLDER_SUB REPOSITORY_ALTERNATE_FOLDER "/sub"
	#define REPOSITORY_ALTERNATE_FOLDER_SUB_SUB REPOSITORY_ALTERNATE_FOLDER_SUB "/subsub"
	#define REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB REPOSITORY_ALTERNATE_FOLDER_SUB_SUB "/subsubsub"

	#define ALTERNATE_MALFORMED_FOLDER1 DISCOVER_FOLDER "/alternate_malformed_repo1"
	#define ALTERNATE_MALFORMED_FOLDER2 DISCOVER_FOLDER "/alternate_malformed_repo2"
	#define ALTERNATE_MALFORMED_FOLDER3 DISCOVER_FOLDER "/alternate_malformed_repo3"
	#define ALTERNATE_NOT_FOUND_FOLDER DISCOVER_FOLDER "/alternate_not_found_repo"

	static int ensure_repository_discover(const char start_path, const char ceiling_dirs, const char *expected_path)
	{
	int error;
	char found_path[GIT_PATH_MAX];

	error = git_repository_discover(found_path, sizeof(found_path), start_path, 0, ceiling_dirs);
	//across_fs is always 0 as we can't automate the filesystem change tests

	if (error < GIT_SUCCESS)
	return error;

	return strcmp(found_path, expected_path) ? GIT_ERROR : GIT_SUCCESS;
	}

	static int write_file(const char path, const char content)
	{
	int error;
	git_file file;

	if (git_futils_exists(path) == GIT_SUCCESS) {
	error = p_unlink(path);

	if (error < GIT_SUCCESS)
	return error;
	}

	file = git_futils_creat_withpath(path, 0644);
	if (file < GIT_SUCCESS)
	return file;

	error = p_write(file, content, strlen(content) * sizeof(char));

	p_close(file);

	return error;
	}

	//no check is performed on ceiling_dirs length, so be sure it's long enough
	static int append_ceiling_dir(char ceiling_dirs, const char path)
	{
	int len = strlen(ceiling_dirs);
	int error;

	error = git_path_prettify_dir(ceiling_dirs + len + (len ? 1 : 0), path, NULL);
	if (error < GIT_SUCCESS)
	return git__rethrow(error, "Failed to append ceiling directory.");

	if (len)
	ceiling_dirs[len] = GIT_PATH_LIST_SEPARATOR;

	return GIT_SUCCESS;
	}

	BEGIN_TEST(discover0, "test discover")
	git_repository *repo;
	char ceiling_dirs[GIT_PATH_MAX * 2] = "";
	char repository_path[GIT_PATH_MAX];
	char sub_repository_path[GIT_PATH_MAX];
	char found_path[GIT_PATH_MAX];
	int mode = 0755;

	git_futils_mkdir_r(DISCOVER_FOLDER, mode);
	must_pass(append_ceiling_dir(ceiling_dirs, TEMP_REPO_FOLDER));

	must_be_true(git_repository_discover(repository_path, sizeof(repository_path), DISCOVER_FOLDER, 0, ceiling_dirs) == GIT_ENOTAREPO);

	must_pass(git_repository_init(&repo, DISCOVER_FOLDER, 1));
	must_pass(git_repository_discover(repository_path, sizeof(repository_path), DISCOVER_FOLDER, 0, ceiling_dirs));
	git_repository_free(repo);

	must_pass(git_repository_init(&repo, SUB_REPOSITORY_FOLDER, 0));
	must_pass(git_futils_mkdir_r(SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, mode));
	must_pass(git_repository_discover(sub_repository_path, sizeof(sub_repository_path), SUB_REPOSITORY_FOLDER, 0, ceiling_dirs));

	must_pass(git_futils_mkdir_r(SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, mode));
	must_pass(ensure_repository_discover(SUB_REPOSITORY_FOLDER_SUB, ceiling_dirs, sub_repository_path));
	must_pass(ensure_repository_discover(SUB_REPOSITORY_FOLDER_SUB_SUB, ceiling_dirs, sub_repository_path));
	must_pass(ensure_repository_discover(SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, ceiling_dirs, sub_repository_path));

	must_pass(git_futils_mkdir_r(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB, mode));
	must_pass(write_file(REPOSITORY_ALTERNATE_FOLDER "/" DOT_GIT, "gitdir: ../" SUB_REPOSITORY_FOLDER_NAME "/" DOT_GIT));
	must_pass(write_file(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB "/" DOT_GIT, "gitdir: ../../../" SUB_REPOSITORY_FOLDER_NAME "/" DOT_GIT));
	must_pass(write_file(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB "/" DOT_GIT, "gitdir: ../../../../"));
	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER, ceiling_dirs, sub_repository_path));
	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB, ceiling_dirs, sub_repository_path));
	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB, ceiling_dirs, sub_repository_path));
	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB, ceiling_dirs, repository_path));

	must_pass(git_futils_mkdir_r(ALTERNATE_MALFORMED_FOLDER1, mode));
	must_pass(write_file(ALTERNATE_MALFORMED_FOLDER1 "/" DOT_GIT, "Anything but not gitdir:"));
	must_pass(git_futils_mkdir_r(ALTERNATE_MALFORMED_FOLDER2, mode));
	must_pass(write_file(ALTERNATE_MALFORMED_FOLDER2 "/" DOT_GIT, "gitdir:"));
	must_pass(git_futils_mkdir_r(ALTERNATE_MALFORMED_FOLDER3, mode));
	must_pass(write_file(ALTERNATE_MALFORMED_FOLDER3 "/" DOT_GIT, "gitdir: \n\n\n"));
	must_pass(git_futils_mkdir_r(ALTERNATE_NOT_FOUND_FOLDER, mode));
	must_pass(write_file(ALTERNATE_NOT_FOUND_FOLDER "/" DOT_GIT, "gitdir: a_repository_that_surely_does_not_exist"));
	must_fail(git_repository_discover(found_path, sizeof(found_path), ALTERNATE_MALFORMED_FOLDER1, 0, ceiling_dirs));
	must_fail(git_repository_discover(found_path, sizeof(found_path), ALTERNATE_MALFORMED_FOLDER2, 0, ceiling_dirs));
	must_fail(git_repository_discover(found_path, sizeof(found_path), ALTERNATE_MALFORMED_FOLDER3, 0, ceiling_dirs));
	must_fail(git_repository_discover(found_path, sizeof(found_path), ALTERNATE_NOT_FOUND_FOLDER, 0, ceiling_dirs));

	must_pass(append_ceiling_dir(ceiling_dirs, SUB_REPOSITORY_FOLDER));
	//this must pass as ceiling_directories cannot predent the current
	//working directory to be checked
	must_pass(git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER, 0, ceiling_dirs));
	must_fail(git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER_SUB, 0, ceiling_dirs));
	must_fail(git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER_SUB_SUB, 0, ceiling_dirs));
	must_fail(git_repository_discover(found_path, sizeof(found_path), SUB_REPOSITORY_FOLDER_SUB_SUB_SUB, 0, ceiling_dirs));

	//.gitfile redirection should not be affected by ceiling directories
	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER, ceiling_dirs, sub_repository_path));
	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB, ceiling_dirs, sub_repository_path));
	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB, ceiling_dirs, sub_repository_path));
	must_pass(ensure_repository_discover(REPOSITORY_ALTERNATE_FOLDER_SUB_SUB_SUB, ceiling_dirs, repository_path));

	must_pass(git_futils_rmdir_r(TEMP_REPO_FOLDER, 1));
	git_repository_free(repo);
	END_TEST

	BEGIN_SUITE(repository)
	ADD_TEST(odb0);
	ADD_TEST(odb1);
	ADD_TEST(init0);
	ADD_TEST(init1);
	ADD_TEST(init2);
	ADD_TEST(open0);
	ADD_TEST(open1);
	ADD_TEST(open2);
	ADD_TEST(empty0);
	ADD_TEST(detached0);
	ADD_TEST(orphan0);
	ADD_TEST(discover0);
	END_SUITE