Merge pull request #1115 from ben/struct-versions

Version info for public structs

20 files changed, 246 insertions, 57 deletions

diff --git a/tests-clar/checkout/index.c b/tests-clar/checkout/index.c
index b6d637223..a67765b26 100644
--- a/tests-clar/checkout/index.c
+++ b/tests-clar/checkout/index.c
@@ -25,7 +25,7 @@ void test_checkout_index__initialize(void)
 {
 	git_tree *tree;
 
-	memset(&g_opts, 0, sizeof(g_opts));
+	GIT_INIT_STRUCTURE(&g_opts, GIT_CHECKOUT_OPTS_VERSION);
 	g_opts.checkout_strategy = GIT_CHECKOUT_SAFE;
 
 	g_repo = cl_git_sandbox_init("testrepo");
@@ -66,7 +66,7 @@ void test_checkout_index__cannot_checkout_a_bare_repository(void)
 {
 	test_checkout_index__cleanup();
 
-	memset(&g_opts, 0, sizeof(g_opts));
+	GIT_INIT_STRUCTURE(&g_opts, GIT_CHECKOUT_OPTS_VERSION);
 	g_repo = cl_git_sandbox_init("testrepo.git");
 
 	cl_git_fail(git_checkout_index(g_repo, NULL, NULL));
@@ -426,3 +426,21 @@ void test_checkout_index__can_overcome_name_clashes(void)
 
 	git_index_free(index);
 }
+
+void test_checkout_index__validates_struct_version(void)
+{
+	const git_error *err;
+
+	g_opts.version = 1024;
+	cl_git_fail(git_checkout_index(g_repo, NULL, &g_opts));
+
+	err = giterr_last();
+	cl_assert_equal_i(err->klass, GITERR_INVALID);
+
+	g_opts.version = 0;
+	giterr_clear();
+	cl_git_fail(git_checkout_index(g_repo, NULL, &g_opts));
+
+	err = giterr_last();
+	cl_assert_equal_i(err->klass, GITERR_INVALID);
+}
diff --git a/tests-clar/checkout/tree.c b/tests-clar/checkout/tree.c
index 534c46086..88dbe4ffc 100644
--- a/tests-clar/checkout/tree.c
+++ b/tests-clar/checkout/tree.c
@@ -11,7 +11,7 @@ void test_checkout_tree__initialize(void)
 {
 	g_repo = cl_git_sandbox_init("testrepo");
 
-	memset(&g_opts, 0, sizeof(g_opts));
+	GIT_INIT_STRUCTURE(&g_opts, GIT_CHECKOUT_OPTS_VERSION);
 	g_opts.checkout_strategy = GIT_CHECKOUT_SAFE;
 }
 
diff --git a/tests-clar/checkout/typechange.c b/tests-clar/checkout/typechange.c
index cd34885de..98c15bcb7 100644
--- a/tests-clar/checkout/typechange.c
+++ b/tests-clar/checkout/typechange.c
@@ -38,7 +38,7 @@ void test_checkout_typechange__checkout_typechanges(void)
 {
 	int i;
 	git_object *obj;
-	git_checkout_opts opts = {0};
+	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
 
 	opts.checkout_strategy = GIT_CHECKOUT_FORCE;
 
diff --git a/tests-clar/commit/parse.c b/tests-clar/commit/parse.c
index bbb502cb5..8075f2619 100644
--- a/tests-clar/commit/parse.c
+++ b/tests-clar/commit/parse.c
@@ -149,7 +149,7 @@ void test_commit_parse__signature(void)
    {
       const char *str = passcase->string;
       size_t len = strlen(passcase->string);
-      struct git_signature person = {NULL, NULL, {0, 0}};
+      struct git_signature person = {0};
       cl_git_pass(git_signature__parse(&person, &str, str + len, passcase->header, '\n'));
       cl_assert(strcmp(passcase->name, person.name) == 0);
       cl_assert(strcmp(passcase->email, person.email) == 0);
@@ -162,7 +162,7 @@ void test_commit_parse__signature(void)
    {
       const char *str = failcase->string;
       size_t len = strlen(failcase->string);
-      git_signature person = {NULL, NULL, {0, 0}};
+      git_signature person = {0};
       cl_git_fail(git_signature__parse(&person, &str, str + len, failcase->header, '\n'));
       git__free(person.name); git__free(person.email);
    }
diff --git a/tests-clar/config/backend.c b/tests-clar/config/backend.c
new file mode 100644
index 000000000..1cf770263
--- /dev/null
+++ b/tests-clar/config/backend.c
@@ -0,0 +1,20 @@
+#include "clar_libgit2.h"
+
+void test_config_backend__checks_version(void)
+{
+	git_config *cfg;
+	git_config_backend backend = GIT_CONFIG_BACKEND_INIT;
+	backend.version = 1024;
+	const git_error *err;
+
+	cl_git_pass(git_config_new(&cfg));
+	cl_git_fail(git_config_add_backend(cfg, &backend, 0, false));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+
+	giterr_clear();
+	backend.version = 1024;
+	cl_git_fail(git_config_add_backend(cfg, &backend, 0, false));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+}
diff --git a/tests-clar/diff/blob.c b/tests-clar/diff/blob.c
index 6a5645d4b..d7fdba0e6 100644
--- a/tests-clar/diff/blob.c
+++ b/tests-clar/diff/blob.c
@@ -12,7 +12,7 @@ void test_diff_blob__initialize(void)
 
 	g_repo = cl_git_sandbox_init("attr");
 
-	memset(&opts, 0, sizeof(opts));
+	GIT_INIT_STRUCTURE(&opts, GIT_DIFF_OPTIONS_VERSION);
 	opts.context_lines = 1;
 	opts.interhunk_lines = 0;
 
@@ -313,3 +313,25 @@ void test_diff_blob__comparing_two_text_blobs_honors_interhunkcontext(void)
 
 	git_blob_free(old_d);
 }
+
+void test_diff_blob__checks_options_version_too_low(void)
+{
+	const git_error *err;
+
+	opts.version = 0;
+	cl_git_fail(git_diff_blobs(
+		d, alien, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+}
+
+void test_diff_blob__checks_options_version_too_high(void)
+{
+	const git_error *err;
+
+	opts.version = 1024;
+	cl_git_fail(git_diff_blobs(
+		d, alien, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+}
diff --git a/tests-clar/diff/diff_helpers.h b/tests-clar/diff/diff_helpers.h
index 12591f63e..49c265285 100644
--- a/tests-clar/diff/diff_helpers.h
+++ b/tests-clar/diff/diff_helpers.h
@@ -48,3 +48,4 @@ extern int diff_foreach_via_iterator(
 	void *data);
 
 extern void diff_print(FILE *fp, git_diff_list *diff);
+
diff --git a/tests-clar/diff/diffiter.c b/tests-clar/diff/diffiter.c
index 133392c21..306a13eb9 100644
--- a/tests-clar/diff/diffiter.c
+++ b/tests-clar/diff/diffiter.c
@@ -76,7 +76,7 @@ void test_diff_diffiter__iterate_files_2(void)
 void test_diff_diffiter__iterate_files_and_hunks(void)
 {
 	git_repository *repo = cl_git_sandbox_init("status");
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	size_t d, num_d;
 	int file_count = 0, hunk_count = 0;
@@ -129,7 +129,7 @@ void test_diff_diffiter__iterate_files_and_hunks(void)
 void test_diff_diffiter__max_size_threshold(void)
 {
 	git_repository *repo = cl_git_sandbox_init("status");
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	int file_count = 0, binary_count = 0, hunk_count = 0;
 	size_t d, num_d;
@@ -207,7 +207,7 @@ void test_diff_diffiter__max_size_threshold(void)
 void test_diff_diffiter__iterate_all(void)
 {
 	git_repository *repo = cl_git_sandbox_init("status");
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	diff_expects exp = {0};
 	size_t d, num_d;
@@ -280,7 +280,7 @@ static void iterate_over_patch(git_diff_patch *patch, diff_expects *exp)
 void test_diff_diffiter__iterate_randomly_while_saving_state(void)
 {
 	git_repository *repo = cl_git_sandbox_init("status");
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	diff_expects exp = {0};
 	git_diff_patch *patches[PATCH_CACHE];
@@ -441,3 +441,25 @@ void test_diff_diffiter__iterate_and_generate_patch_text(void)
 
 	git_diff_list_free(diff);
 }
+
+void test_diff_diffiter__checks_options_version(void)
+{
+	git_repository *repo = cl_git_sandbox_init("status");
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
+	git_diff_list *diff = NULL;
+	const git_error *err;
+
+	opts.version = 0;
+	opts.flags |= GIT_DIFF_INCLUDE_IGNORED | GIT_DIFF_INCLUDE_UNTRACKED;
+
+	cl_git_fail(git_diff_workdir_to_index(&diff, repo, NULL, &opts));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+
+	giterr_clear();
+	opts.version = 1024;
+	cl_git_fail(git_diff_workdir_to_index(&diff, repo, NULL, &opts));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+}
+
diff --git a/tests-clar/diff/index.c b/tests-clar/diff/index.c
index 9591e3457..267b3291c 100644
--- a/tests-clar/diff/index.c
+++ b/tests-clar/diff/index.c
@@ -20,7 +20,7 @@ void test_diff_index__0(void)
 	const char *b_commit = "0017bd4ab1ec3"; /* the start */
 	git_tree *a = resolve_commit_oid_to_tree(g_repo, a_commit);
 	git_tree *b = resolve_commit_oid_to_tree(g_repo, b_commit);
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	diff_expects exp;
 
@@ -113,7 +113,7 @@ void test_diff_index__1(void)
 	const char *b_commit = "0017bd4ab1ec3"; /* the start */
 	git_tree *a = resolve_commit_oid_to_tree(g_repo, a_commit);
 	git_tree *b = resolve_commit_oid_to_tree(g_repo, b_commit);
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	diff_expects exp;
 
@@ -140,3 +140,24 @@ void test_diff_index__1(void)
 	git_tree_free(a);
 	git_tree_free(b);
 }
+
+void test_diff_index__checks_options_version(void)
+{
+	const char *a_commit = "26a125ee1bf";
+	git_tree *a = resolve_commit_oid_to_tree(g_repo, a_commit);
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
+	git_diff_list *diff;
+	const git_error *err;
+
+	opts.version = 0;
+	cl_git_fail(git_diff_index_to_tree(&diff, g_repo, a, NULL, &opts));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+
+	giterr_clear();
+	opts.version = 1024;
+	cl_git_fail(git_diff_index_to_tree(&diff, g_repo, a, NULL, &opts));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+}
+
diff --git a/tests-clar/diff/rename.c b/tests-clar/diff/rename.c
index 0d57f8ff0..2995b4ef5 100644
--- a/tests-clar/diff/rename.c
+++ b/tests-clar/diff/rename.c
@@ -33,8 +33,8 @@ void test_diff_rename__match_oid(void)
 	const char *new_sha = "2bc7f351d20b53f1c72c16c4b036e491c478c49a";
 	git_tree *old_tree, *new_tree;
 	git_diff_list *diff;
-	git_diff_options diffopts = {0};
-	git_diff_find_options opts;
+	git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
+	git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
 	diff_expects exp;
 
 	old_tree = resolve_commit_oid_to_tree(g_repo, old_sha);
@@ -43,7 +43,6 @@ void test_diff_rename__match_oid(void)
 	/* Must pass GIT_DIFF_INCLUDE_UNMODIFIED if you expect to emulate
 	 * --find-copies-harder during rename transformion...
 	 */
-	memset(&diffopts, 0, sizeof(diffopts));
 	diffopts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED;
 
 	cl_git_pass(git_diff_tree_to_tree(
@@ -85,7 +84,6 @@ void test_diff_rename__match_oid(void)
 	 *          31e47d8c1fa36d7f8d537b96158e3f024de0a9f2 \
 	 *          2bc7f351d20b53f1c72c16c4b036e491c478c49a
 	 */
-	memset(&opts, 0, sizeof(opts));
 	opts.flags = GIT_DIFF_FIND_COPIES_FROM_UNMODIFIED;
 	cl_git_pass(git_diff_find_similar(diff, &opts));
 
@@ -103,3 +101,35 @@ void test_diff_rename__match_oid(void)
 	git_tree_free(old_tree);
 	git_tree_free(new_tree);
 }
+
+void test_diff_rename__checks_options_version(void)
+{
+	const char *old_sha = "31e47d8c1fa36d7f8d537b96158e3f024de0a9f2";
+	const char *new_sha = "2bc7f351d20b53f1c72c16c4b036e491c478c49a";
+	git_tree *old_tree, *new_tree;
+	git_diff_list *diff;
+	git_diff_options diffopts = GIT_DIFF_OPTIONS_INIT;
+	git_diff_find_options opts = GIT_DIFF_FIND_OPTIONS_INIT;
+	const git_error *err;
+
+	old_tree = resolve_commit_oid_to_tree(g_repo, old_sha);
+	new_tree = resolve_commit_oid_to_tree(g_repo, new_sha);
+	diffopts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED;
+	cl_git_pass(git_diff_tree_to_tree(
+		&diff, g_repo, old_tree, new_tree, &diffopts));
+
+	opts.version = 0;
+	cl_git_fail(git_diff_find_similar(diff, &opts));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+
+	giterr_clear();
+	opts.version = 1024;
+	cl_git_fail(git_diff_find_similar(diff, &opts));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+
+	git_diff_list_free(diff);
+	git_tree_free(old_tree);
+	git_tree_free(new_tree);
+}
diff --git a/tests-clar/diff/tree.c b/tests-clar/diff/tree.c
index 58dc4e6fa..442e53b25 100644
--- a/tests-clar/diff/tree.c
+++ b/tests-clar/diff/tree.c
@@ -19,7 +19,7 @@ void test_diff_tree__0(void)
 	const char *b_commit = "370fe9ec22";
 	const char *c_commit = "f5b0af1fb4f5c";
 	git_tree *a, *b, *c;
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	diff_expects exp;
 
@@ -175,7 +175,7 @@ void test_diff_tree__bare(void)
 	const char *a_commit = "8496071c1b46c85";
 	const char *b_commit = "be3563ae3f79";
 	git_tree *a, *b;
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	diff_expects exp;
 
@@ -264,7 +264,7 @@ void test_diff_tree__larger_hunks(void)
 	const char *a_commit = "d70d245ed97ed2aa596dd1af6536e4bfdb047b69";
 	const char *b_commit = "7a9e0b02e63179929fed24f0a3e0f19168114d10";
 	git_tree *a, *b;
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	size_t d, num_d, h, num_h, l, num_l, header_len, line_len;
 	const git_diff_delta *delta;
@@ -319,3 +319,31 @@ void test_diff_tree__larger_hunks(void)
 	git_tree_free(a);
 	git_tree_free(b);
 }
+
+void test_diff_tree__checks_options_version(void)
+{
+	const char *a_commit = "8496071c1b46c85";
+	const char *b_commit = "be3563ae3f79";
+	git_tree *a, *b;
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
+	git_diff_list *diff = NULL;
+	const git_error *err;
+
+	g_repo = cl_git_sandbox_init("testrepo.git");
+
+	cl_assert((a = resolve_commit_oid_to_tree(g_repo, a_commit)) != NULL);
+	cl_assert((b = resolve_commit_oid_to_tree(g_repo, b_commit)) != NULL);
+
+	opts.version = 0;
+	cl_git_fail(git_diff_tree_to_tree(&diff, g_repo, a, b, &opts));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+
+	giterr_clear();
+	opts.version = 1024;
+	cl_git_fail(git_diff_tree_to_tree(&diff, g_repo, a, b, &opts));
+	err = giterr_last();
+
+	git_tree_free(a);
+	git_tree_free(b);
+}
diff --git a/tests-clar/diff/workdir.c b/tests-clar/diff/workdir.c
index 57c88c3e5..10d58b118 100644
--- a/tests-clar/diff/workdir.c
+++ b/tests-clar/diff/workdir.c
@@ -15,7 +15,7 @@ void test_diff_workdir__cleanup(void)
 
 void test_diff_workdir__to_index(void)
 {
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	diff_expects exp;
 	int use_iterator;
@@ -69,7 +69,7 @@ void test_diff_workdir__to_tree(void)
 	const char *a_commit = "26a125ee1bf"; /* the current HEAD */
 	const char *b_commit = "0017bd4ab1ec3"; /* the start */
 	git_tree *a, *b;
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	git_diff_list *diff2 = NULL;
 	diff_expects exp;
@@ -202,7 +202,7 @@ void test_diff_workdir__to_tree(void)
 
 void test_diff_workdir__to_index_with_pathspec(void)
 {
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	diff_expects exp;
 	char *pathspec = NULL;
@@ -420,7 +420,7 @@ void test_diff_workdir__filemode_changes_with_filemode_false(void)
 
 void test_diff_workdir__head_index_and_workdir_all_differ(void)
 {
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff_i2t = NULL, *diff_w2i = NULL;
 	diff_expects exp;
 	char *pathspec = "staged_changes_modified_file";
@@ -518,7 +518,7 @@ void test_diff_workdir__head_index_and_workdir_all_differ(void)
 
 void test_diff_workdir__eof_newline_changes(void)
 {
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	diff_expects exp;
 	char *pathspec = "current_file";
@@ -678,7 +678,7 @@ void test_diff_workdir__larger_hunks(void)
 	const char *a_commit = "d70d245ed97ed2aa596dd1af6536e4bfdb047b69";
 	const char *b_commit = "7a9e0b02e63179929fed24f0a3e0f19168114d10";
 	git_tree *a, *b;
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	size_t i, d, num_d, h, num_h, l, num_l, header_len, line_len;
 
 	g_repo = cl_git_sandbox_init("diff");
@@ -763,7 +763,7 @@ void test_diff_workdir__submodules(void)
 {
 	const char *a_commit = "873585b94bdeabccea991ea5e3ec1a277895b698";
 	git_tree *a;
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	diff_expects exp;
 
@@ -822,7 +822,7 @@ void test_diff_workdir__submodules(void)
 
 void test_diff_workdir__cannot_diff_against_a_bare_repository(void)
 {
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 	git_diff_list *diff = NULL;
 	git_tree *tree;
 
@@ -843,7 +843,7 @@ void test_diff_workdir__to_null_tree(void)
 {
 	git_diff_list *diff;
 	diff_expects exp;
-	git_diff_options opts = {0};
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 
 	opts.flags = GIT_DIFF_INCLUDE_UNTRACKED |
 		GIT_DIFF_RECURSE_UNTRACKED_DIRS;
@@ -861,3 +861,23 @@ void test_diff_workdir__to_null_tree(void)
 
 	git_diff_list_free(diff);
 }
+
+void test_diff_workdir__checks_options_version(void)
+{
+	git_diff_list *diff;
+	git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
+	const git_error *err;
+
+	g_repo = cl_git_sandbox_init("status");
+
+	opts.version = 0;
+	cl_git_fail(git_diff_workdir_to_tree(&diff, g_repo, NULL, &opts));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+
+	giterr_clear();
+	opts.version = 1024;
+	cl_git_fail(git_diff_workdir_to_tree(&diff, g_repo, NULL, &opts));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+}
diff --git a/tests-clar/network/fetch.c b/tests-clar/network/fetch.c
index 623352fa5..33c229316 100644
--- a/tests-clar/network/fetch.c
+++ b/tests-clar/network/fetch.c
@@ -36,10 +36,9 @@ static void progress(const git_transfer_progress *stats, void *payload)
 static void do_fetch(const char *url, git_remote_autotag_option_t flag, int n)
 {
 	git_remote *remote;
-	git_remote_callbacks callbacks;
+	git_remote_callbacks callbacks = GIT_REMOTE_CALLBACKS_INIT;
 	size_t bytes_received = 0;
 
-	memset(&callbacks, 0, sizeof(git_remote_callbacks));
 	callbacks.update_tips = update_tips;
 	counter = 0;
 
@@ -78,6 +77,7 @@ void test_network_fetch__no_tags_http(void)
 
 static void transferProgressCallback(const git_transfer_progress *stats, void *payload)
 {
+	GIT_UNUSED(stats);
 	bool *invoked = (bool *)payload;
 
 	GIT_UNUSED(stats);
diff --git a/tests-clar/network/push_util.h b/tests-clar/network/push_util.h
index 2f4dffce4..759122aa6 100644
--- a/tests-clar/network/push_util.h
+++ b/tests-clar/network/push_util.h
@@ -11,7 +11,8 @@ extern const git_oid OID_ZERO;
  * record data in a record_callbacks_data instance.
  * @param data pointer to a record_callbacks_data instance
  */
-#define RECORD_CALLBACKS_INIT(data) { NULL, NULL, record_update_tips_cb, data }
+#define RECORD_CALLBACKS_INIT(data) \
+	{ GIT_REMOTE_CALLBACKS_VERSION, NULL, NULL, record_update_tips_cb, data }
 
 typedef struct {
 	char *name;
diff --git a/tests-clar/network/remotes.c b/tests-clar/network/remotes.c
index b4a3ad99d..70df001e7 100644
--- a/tests-clar/network/remotes.c
+++ b/tests-clar/network/remotes.c
@@ -306,3 +306,23 @@ void test_network_remotes__cannot_load_with_an_empty_url(void)
 	cl_git_fail(git_remote_load(&remote, _repo, "empty-remote-url"));
 	cl_assert(giterr_last()->klass == GITERR_INVALID);
 }
+
+void test_network_remotes__check_structure_version(void)
+{
+	git_transport transport = GIT_TRANSPORT_INIT;
+	const git_error *err;
+
+	git_remote_free(_remote);
+	cl_git_pass(git_remote_new(&_remote, _repo, NULL, "test-protocol://localhost", NULL));
+
+	transport.version = 0;
+	cl_git_fail(git_remote_set_transport(_remote, &transport));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+
+	giterr_clear();
+	transport.version = 1024;
+	cl_git_fail(git_remote_set_transport(_remote, &transport));
+	err = giterr_last();
+	cl_assert_equal_i(GITERR_INVALID, err->klass);
+}
diff --git a/tests-clar/odb/sorting.c b/tests-clar/odb/sorting.c
index bf64f6af4..b4f9e44bc 100644
--- a/tests-clar/odb/sorting.c
+++ b/tests-clar/odb/sorting.c
@@ -11,11 +11,11 @@ static git_odb_backend *new_backend(int position)
 {
 	fake_backend *b;
 
-	b = git__malloc(sizeof(fake_backend));
+	b = git__calloc(1, sizeof(fake_backend));
 	if (b == NULL)
 		return NULL;
 
-	memset(b, 0x0, sizeof(fake_backend));
+	b->base.version = GIT_ODB_BACKEND_VERSION;
 	b->position = position;
 	return (git_odb_backend *)b;
 }
diff --git a/tests-clar/refs/branches/tracking.c b/tests-clar/refs/branches/tracking.c
index 7af5f974f..bc41e0633 100644
--- a/tests-clar/refs/branches/tracking.c
+++ b/tests-clar/refs/branches/tracking.c
@@ -65,7 +65,8 @@ static void assert_merge_and_or_remote_key_missing(git_repository *repository, c
 {
 	git_reference *branch;
 
-	cl_git_pass(git_branch_create(&branch, repository, entry_name, target, 0));
+	cl_assert_equal_i(GIT_OBJ_COMMIT, git_object_type(target));
+	cl_git_pass(git_branch_create(&branch, repository, entry_name, (git_commit*)target, 0));
 
 	cl_assert_equal_i(GIT_ENOTFOUND, git_branch_tracking(&tracking, branch));
 
diff --git a/tests-clar/repo/init.c b/tests-clar/repo/init.c
index 3b14c97f2..c0acbed5a 100644
--- a/tests-clar/repo/init.c
+++ b/tests-clar/repo/init.c
@@ -304,8 +304,7 @@ void test_repo_init__sets_logAllRefUpdates_according_to_type_of_repository(void)
 
 void test_repo_init__extended_0(void)
 {
-	git_repository_init_options opts;
-	memset(&opts, 0, sizeof(opts));
+	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
 
 	/* without MKDIR this should fail */
 	cl_git_fail(git_repository_init_ext(&_repo, "extended", &opts));
@@ -327,8 +326,7 @@ void test_repo_init__extended_1(void)
 	git_reference *ref;
 	git_remote *remote;
 	struct stat st;
-	git_repository_init_options opts;
-	memset(&opts, 0, sizeof(opts));
+	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
 
 	opts.flags = GIT_REPOSITORY_INIT_MKPATH |
 		GIT_REPOSITORY_INIT_NO_DOTGIT_DIR;
@@ -367,8 +365,7 @@ void test_repo_init__extended_1(void)
 
 void test_repo_init__extended_with_template(void)
 {
-	git_repository_init_options opts;
-	memset(&opts, 0, sizeof(opts));
+	git_repository_init_options opts = GIT_REPOSITORY_INIT_OPTIONS_INIT;
 
 	opts.flags = GIT_REPOSITORY_INIT_MKPATH | GIT_REPOSITORY_INIT_BARE;
 	opts.template_path = cl_fixture("template");
diff --git a/tests-clar/status/ignore.c b/tests-clar/status/ignore.c
index 27f9d85b9..e2e4aaf18 100644
--- a/tests-clar/status/ignore.c
+++ b/tests-clar/status/ignore.c
@@ -180,9 +180,6 @@ void test_status_ignore__subdirectories(void)
 {
 	status_entry_single st;
 	int ignored;
-	git_status_options opts;
-
-	GIT_UNUSED(opts);
 
 	g_repo = cl_git_sandbox_init("empty_standard_repo");
 
@@ -216,11 +213,6 @@ void test_status_ignore__subdirectories(void)
 	cl_git_mkfile(
 		"empty_standard_repo/test/ignore_me/file", "I'm going to be ignored!");
 
-	opts.show = GIT_STATUS_SHOW_INDEX_AND_WORKDIR;
-	opts.flags = GIT_STATUS_OPT_INCLUDE_IGNORED |
-		GIT_STATUS_OPT_INCLUDE_UNTRACKED |
-		GIT_STATUS_OPT_RECURSE_UNTRACKED_DIRS;
-
 	memset(&st, 0, sizeof(st));
 	cl_git_pass(git_status_foreach(g_repo, cb_status__single, &st));
 	cl_assert_equal_i(2, st.count);
diff --git a/tests-clar/status/worktree.c b/tests-clar/status/worktree.c
index 7ae1883b9..a1f7f8684 100644
--- a/tests-clar/status/worktree.c
+++ b/tests-clar/status/worktree.c
@@ -111,7 +111,7 @@ void test_status_worktree__swap_subdir_and_file(void)
 	status_entry_counts counts;
 	git_repository *repo = cl_git_sandbox_init("status");
 	git_index *index;
-	git_status_options opts;
+	git_status_options opts = GIT_STATUS_OPTIONS_INIT;
 	bool ignore_case;
 
 	cl_git_pass(git_repository_index(&index, repo));
@@ -133,7 +133,6 @@ void test_status_worktree__swap_subdir_and_file(void)
 	counts.expected_paths = ignore_case ? entry_paths3_icase : entry_paths3;
 	counts.expected_statuses = ignore_case ? entry_statuses3_icase : entry_statuses3;
 
-	memset(&opts, 0, sizeof(opts));
 	opts.flags = GIT_STATUS_OPT_INCLUDE_UNTRACKED |
 		GIT_STATUS_OPT_INCLUDE_IGNORED;
 
@@ -150,7 +149,7 @@ void test_status_worktree__swap_subdir_with_recurse_and_pathspec(void)
 {
 	status_entry_counts counts;
 	git_repository *repo = cl_git_sandbox_init("status");
-	git_status_options opts;
+	git_status_options opts = GIT_STATUS_OPTIONS_INIT;
 
 	/* first alter the contents of the worktree */
 	cl_git_pass(p_rename("status/current_file", "status/swap"));
@@ -167,7 +166,6 @@ void test_status_worktree__swap_subdir_with_recurse_and_pathspec(void)
 	counts.expected_paths = entry_paths4;
 	counts.expected_statuses = entry_statuses4;
 
-	memset(&opts, 0, sizeof(opts));
 	opts.flags = GIT_STATUS_OPT_INCLUDE_UNTRACKED |
 		GIT_STATUS_OPT_RECURSE_UNTRACKED_DIRS;
 	/* TODO: set pathspec to "current_file" eventually */
@@ -691,7 +689,7 @@ void test_status_worktree__filemode_changes(void)
 {
 	git_repository *repo = cl_git_sandbox_init("filemodes");
 	status_entry_counts counts;
-	git_status_options opts;
+	git_status_options opts = GIT_STATUS_OPTIONS_INIT;
 	git_config *cfg;
 
 	/* overwrite stored filemode with platform appropriate value */
@@ -708,7 +706,6 @@ void test_status_worktree__filemode_changes(void)
 				filemode_statuses[i] = GIT_STATUS_CURRENT;
 	}
 
-	memset(&opts, 0, sizeof(opts));
 	opts.flags = GIT_STATUS_OPT_INCLUDE_UNTRACKED |
 		GIT_STATUS_OPT_INCLUDE_IGNORED |
 		GIT_STATUS_OPT_INCLUDE_UNMODIFIED;
@@ -746,7 +743,7 @@ static int cb_status__expected_path(const char *p, unsigned int s, void *payload
 void test_status_worktree__disable_pathspec_match(void)
 {
 	git_repository *repo;
-	git_status_options opts;
+	git_status_options opts = GIT_STATUS_OPTIONS_INIT;
 	char *file_with_bracket = "LICENSE[1].md", 
 		*imaginary_file_with_bracket = "LICENSE[1-2].md";
 
@@ -754,7 +751,6 @@ void test_status_worktree__disable_pathspec_match(void)
 	cl_git_mkfile("pathspec/LICENSE[1].md", "screaming bracket\n");
 	cl_git_mkfile("pathspec/LICENSE1.md", "no bracket\n");
 
-	memset(&opts, 0, sizeof(opts));
 	opts.flags = GIT_STATUS_OPT_INCLUDE_UNTRACKED | 
 		GIT_STATUS_OPT_DISABLE_PATHSPEC_MATCH;
 	opts.pathspec.count = 1;