Merge https://salsa.debian.org/debian/libgit2 into proxmox/bullseye

[libgit2.git] / tests / libgit2 / odb / alternates.c

diff --git a/tests/libgit2/odb/alternates.c b/tests/libgit2/odb/alternates.c
new file mode 100644 (file)
index 0000000..6c00fda
--- /dev/null
+++ b/tests/libgit2/odb/alternates.c
@@ -0,0 +1,80 @@
+#include "clar_libgit2.h"
+#include "odb.h"
+#include "filebuf.h"
+
+static git_str destpath, filepath;
+static const char *paths[] = {
+       "A.git", "B.git", "C.git", "D.git", "E.git", "F.git", "G.git"
+};
+static git_filebuf file;
+static git_repository *repo;
+
+void test_odb_alternates__cleanup(void)
+{
+       size_t i;
+
+       git_str_dispose(&destpath);
+       git_str_dispose(&filepath);
+
+       for (i = 0; i < ARRAY_SIZE(paths); i++)
+               cl_fixture_cleanup(paths[i]);
+}
+
+static void init_linked_repo(const char *path, const char *alternate)
+{
+       git_str_clear(&destpath);
+       git_str_clear(&filepath);
+
+       cl_git_pass(git_repository_init(&repo, path, 1));
+       cl_git_pass(git_fs_path_prettify(&destpath, alternate, NULL));
+       cl_git_pass(git_str_joinpath(&destpath, destpath.ptr, "objects"));
+       cl_git_pass(git_str_joinpath(&filepath, git_repository_path(repo), "objects/info"));
+       cl_git_pass(git_futils_mkdir(filepath.ptr, 0755, GIT_MKDIR_PATH));
+       cl_git_pass(git_str_joinpath(&filepath, filepath.ptr , "alternates"));
+
+       cl_git_pass(git_filebuf_open(&file, git_str_cstr(&filepath), 0, 0666));
+       git_filebuf_printf(&file, "%s\n", git_str_cstr(&destpath));
+       cl_git_pass(git_filebuf_commit(&file));
+
+       git_repository_free(repo);
+}
+
+void test_odb_alternates__chained(void)
+{
+       git_commit *commit;
+       git_oid oid;
+
+       /* Set the alternate A -> testrepo.git */
+       init_linked_repo(paths[0], cl_fixture("testrepo.git"));
+
+       /* Set the alternate B -> A */
+       init_linked_repo(paths[1], paths[0]);
+
+       /* Now load B and see if we can find an object from testrepo.git */
+       cl_git_pass(git_repository_open(&repo, paths[1]));
+       git_oid_fromstr(&oid, "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
+       cl_git_pass(git_commit_lookup(&commit, repo, &oid));
+       git_commit_free(commit);
+       git_repository_free(repo);
+}
+
+void test_odb_alternates__long_chain(void)
+{
+       git_commit *commit;
+       git_oid oid;
+       size_t i;
+
+       /* Set the alternate A -> testrepo.git */
+       init_linked_repo(paths[0], cl_fixture("testrepo.git"));
+
+       /* Set up the five-element chain */
+       for (i = 1; i < ARRAY_SIZE(paths); i++) {
+               init_linked_repo(paths[i], paths[i-1]);
+       }
+
+       /* Now load the last one and see if we can find an object from testrepo.git */
+       cl_git_pass(git_repository_open(&repo, paths[ARRAY_SIZE(paths)-1]));
+       git_oid_fromstr(&oid, "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
+       cl_git_fail(git_commit_lookup(&commit, repo, &oid));
+       git_repository_free(repo);
+}