diff options
Diffstat (limited to 'tests/libgit2/pack/filelimit.c')
| -rw-r--r-- | tests/libgit2/pack/filelimit.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/tests/libgit2/pack/filelimit.c b/tests/libgit2/pack/filelimit.c new file mode 100644 index 000000000..fa08485fb --- /dev/null +++ b/tests/libgit2/pack/filelimit.c @@ -0,0 +1,136 @@ +#include "clar_libgit2.h" +#include "mwindow.h" + +#include <git2.h> +#include "git2/sys/commit.h" +#include "git2/sys/mempack.h" + +static size_t expected_open_mwindow_files = 0; +static size_t original_mwindow_file_limit = 0; + +extern git_mutex git__mwindow_mutex; +extern git_mwindow_ctl git_mwindow__mem_ctl; + +void test_pack_filelimit__initialize_tiny(void) +{ + expected_open_mwindow_files = 1; + cl_git_pass(git_libgit2_opts(GIT_OPT_GET_MWINDOW_FILE_LIMIT, &original_mwindow_file_limit)); + cl_git_pass(git_libgit2_opts(GIT_OPT_SET_MWINDOW_FILE_LIMIT, expected_open_mwindow_files)); +} + +void test_pack_filelimit__initialize_medium(void) +{ + expected_open_mwindow_files = 10; + cl_git_pass(git_libgit2_opts(GIT_OPT_GET_MWINDOW_FILE_LIMIT, &original_mwindow_file_limit)); + cl_git_pass(git_libgit2_opts(GIT_OPT_SET_MWINDOW_FILE_LIMIT, expected_open_mwindow_files)); +} + +void test_pack_filelimit__initialize_unlimited(void) +{ + expected_open_mwindow_files = 15; + cl_git_pass(git_libgit2_opts(GIT_OPT_GET_MWINDOW_FILE_LIMIT, &original_mwindow_file_limit)); + cl_git_pass(git_libgit2_opts(GIT_OPT_SET_MWINDOW_FILE_LIMIT, 0)); +} + +void test_pack_filelimit__cleanup(void) +{ + git_str path = GIT_STR_INIT; + cl_git_pass(git_libgit2_opts(GIT_OPT_SET_MWINDOW_FILE_LIMIT, original_mwindow_file_limit)); + + cl_git_pass(git_str_joinpath(&path, clar_sandbox_path(), "repo.git")); + cl_fixture_cleanup(path.ptr); + git_str_dispose(&path); +} + +/* + * Create a packfile with one commit, one tree, and two blobs. The first blob + * (README.md) has the same content in all commits, but the second one + * (file.txt) has a different content in each commit. + */ +static void create_packfile_commit( + git_repository *repo, + git_oid *out_commit_id, + git_oid *parent_id, + size_t commit_index, + size_t commit_count) +{ + git_str file_contents = GIT_STR_INIT; + git_treebuilder *treebuilder; + git_packbuilder *packbuilder; + git_signature *s; + git_oid oid, tree_id, commit_id; + const git_oid *parents[] = { parent_id }; + size_t parent_count = parent_id ? 1 : 0; + + cl_git_pass(git_treebuilder_new(&treebuilder, repo, NULL)); + + cl_git_pass(git_blob_create_from_buffer(&oid, repo, "", 0)); + cl_git_pass(git_treebuilder_insert(NULL, treebuilder, "README.md", &oid, 0100644)); + + cl_git_pass(git_str_printf(&file_contents, "Commit %zd/%zd", commit_index, commit_count)); + cl_git_pass(git_blob_create_from_buffer(&oid, repo, file_contents.ptr, file_contents.size)); + cl_git_pass(git_treebuilder_insert(NULL, treebuilder, "file.txt", &oid, 0100644)); + + cl_git_pass(git_treebuilder_write(&tree_id, treebuilder)); + cl_git_pass(git_signature_now(&s, "alice", "alice@example.com")); + cl_git_pass(git_commit_create_from_ids(&commit_id, repo, "refs/heads/master", s, s, + NULL, file_contents.ptr, &tree_id, parent_count, parents)); + + cl_git_pass(git_packbuilder_new(&packbuilder, repo)); + cl_git_pass(git_packbuilder_insert_commit(packbuilder, &commit_id)); + cl_git_pass(git_packbuilder_write(packbuilder, NULL, 0, NULL, NULL)); + + cl_git_pass(git_oid_cpy(out_commit_id, &commit_id)); + + git_str_dispose(&file_contents); + git_treebuilder_free(treebuilder); + git_packbuilder_free(packbuilder); + git_signature_free(s); +} + +void test_pack_filelimit__open_repo_with_multiple_packfiles(void) +{ + git_str path = GIT_STR_INIT; + git_mwindow_ctl *ctl = &git_mwindow__mem_ctl; + git_repository *repo; + git_revwalk *walk; + git_oid id, *parent_id = NULL; + size_t i; + const size_t commit_count = 16; + unsigned int open_windows; + + /* + * Create a repository and populate it with 16 commits, each in its own + * packfile. + */ + cl_git_pass(git_str_joinpath(&path, clar_sandbox_path(), "repo.git")); + cl_git_pass(git_repository_init(&repo, path.ptr, true)); + for (i = 0; i < commit_count; ++i) { + create_packfile_commit(repo, &id, parent_id, i + 1, commit_count); + parent_id = &id; + } + + cl_git_pass(git_revwalk_new(&walk, repo)); + cl_git_pass(git_revwalk_sorting(walk, GIT_SORT_TOPOLOGICAL)); + cl_git_pass(git_revwalk_push_ref(walk, "refs/heads/master")); + + /* Walking the repository requires eventually opening each of the packfiles. */ + i = 0; + while (git_revwalk_next(&id, walk) == 0) + ++i; + cl_assert_equal_i(commit_count, i); + + cl_git_pass(git_mutex_lock(&git__mwindow_mutex)); + /* + * Adding an assert while holding a lock will cause the whole process to + * deadlock. Copy the value and do the assert after releasing the lock. + */ + open_windows = ctl->open_windows; + cl_git_pass(git_mutex_unlock(&git__mwindow_mutex)); + + cl_assert_equal_i(expected_open_mwindow_files, open_windows); + + git_str_dispose(&path); + git_revwalk_free(walk); + git_repository_free(repo); +} |