thodg/libgit2

diff --git a/include/git2/oid.h b/include/git2/oid.h
index f9636d1..b9824b8 100644
--- a/include/git2/oid.h
+++ b/include/git2/oid.h
@@ -150,6 +150,16 @@ GIT_EXTERN(int) git_oid_cmp(const git_oid *a, const git_oid *b);
 GIT_EXTERN(int) git_oid_ncmp(const git_oid *a, const git_oid *b, unsigned int len);
 
 /**
+ * Check if an oid equals an hex formatted object id.
+ *
+ * @param a oid structure.
+ * @param str input hex string of an object id.
+ * @return GIT_ENOTOID if str is not a valid hex string,
+ * GIT_SUCCESS in case of a match, GIT_ERROR otherwise.
+ */
+GIT_EXTERN(int) git_oid_streq(const git_oid *a, const char *str);
+
+/**
  * OID Shortener object
  */
 typedef struct git_oid_shorten git_oid_shorten;
diff --git a/src/oid.c b/src/oid.c
index b47fa2c..bbf19ea 100644
--- a/src/oid.c
+++ b/src/oid.c
@@ -197,6 +197,17 @@ int git_oid_ncmp(const git_oid *oid_a, const git_oid *oid_b, unsigned int len)
 	return 0;
 }
 
+int git_oid_streq(const git_oid *a, const char *str)
+{
+	git_oid id;
+	int error;
+
+	if ((error = git_oid_fromstr(&id, str)) < GIT_SUCCESS)
+		return git__rethrow(error, "Failed to convert '%s' to oid.", str);
+
+	return git_oid_cmp(a, &id) == 0 ? GIT_SUCCESS : GIT_ERROR;
+}
+
 typedef short node_index;
 
 typedef union {
diff --git a/tests-clay/clay.h b/tests-clay/clay.h
index 184635e..7e653cf 100644
--- a/tests-clay/clay.h
+++ b/tests-clay/clay.h
@@ -57,17 +57,6 @@ void cl_fixture_cleanup(const char *fixture_name);
 /**
  * Test method declarations
  */
-extern void test_status_single__hash_single_file(void);
-extern void test_status_worktree__initialize(void);
-extern void test_status_worktree__cleanup(void);
-extern void test_status_worktree__whole_repository(void);
-extern void test_status_worktree__empty_repository(void);
-extern void test_network_remotes__initialize(void);
-extern void test_network_remotes__cleanup(void);
-extern void test_network_remotes__parsing(void);
-extern void test_network_remotes__refspec_parsing(void);
-extern void test_network_remotes__fnmatch(void);
-extern void test_network_remotes__transform(void);
 extern void test_core_dirent__dont_traverse_dot(void);
 extern void test_core_dirent__traverse_subfolder(void);
 extern void test_core_dirent__traverse_slash_terminated_folder(void);
@@ -76,6 +65,8 @@ extern void test_core_dirent__traverse_weird_filenames(void);
 extern void test_core_filebuf__0(void);
 extern void test_core_filebuf__1(void);
 extern void test_core_filebuf__2(void);
+extern void test_core_oid__initialize(void);
+extern void test_core_oid__streq(void);
 extern void test_core_path__0(void);
 extern void test_core_path__1(void);
 extern void test_core_path__2(void);
@@ -91,5 +82,16 @@ extern void test_core_strtol__int64(void);
 extern void test_core_vector__0(void);
 extern void test_core_vector__1(void);
 extern void test_core_vector__2(void);
+extern void test_network_remotes__initialize(void);
+extern void test_network_remotes__cleanup(void);
+extern void test_network_remotes__parsing(void);
+extern void test_network_remotes__refspec_parsing(void);
+extern void test_network_remotes__fnmatch(void);
+extern void test_network_remotes__transform(void);
+extern void test_status_single__hash_single_file(void);
+extern void test_status_worktree__initialize(void);
+extern void test_status_worktree__cleanup(void);
+extern void test_status_worktree__whole_repository(void);
+extern void test_status_worktree__empty_repository(void);
 
 #endif
diff --git a/tests-clay/clay_main.c b/tests-clay/clay_main.c
index cca23f4..dcd9ae8 100644
--- a/tests-clay/clay_main.c
+++ b/tests-clay/clay_main.c
@@ -660,107 +660,114 @@ cl_fs_cleanup(void)
 
 
 static const struct clay_func _all_callbacks[] = {
-    {"hash_single_file", &test_status_single__hash_single_file, 0},
-	{"whole_repository", &test_status_worktree__whole_repository, 1},
-	{"empty_repository", &test_status_worktree__empty_repository, 1},
-	{"parsing", &test_network_remotes__parsing, 2},
-	{"refspec_parsing", &test_network_remotes__refspec_parsing, 2},
-	{"fnmatch", &test_network_remotes__fnmatch, 2},
-	{"transform", &test_network_remotes__transform, 2},
-	{"dont_traverse_dot", &test_core_dirent__dont_traverse_dot, 3},
-	{"traverse_subfolder", &test_core_dirent__traverse_subfolder, 3},
-	{"traverse_slash_terminated_folder", &test_core_dirent__traverse_slash_terminated_folder, 3},
-	{"dont_traverse_empty_folders", &test_core_dirent__dont_traverse_empty_folders, 3},
-	{"traverse_weird_filenames", &test_core_dirent__traverse_weird_filenames, 3},
-	{"0", &test_core_filebuf__0, 4},
-	{"1", &test_core_filebuf__1, 4},
-	{"2", &test_core_filebuf__2, 4},
-	{"0", &test_core_path__0, 5},
-	{"1", &test_core_path__1, 5},
-	{"2", &test_core_path__2, 5},
-	{"5", &test_core_path__5, 5},
-	{"6", &test_core_path__6, 5},
-	{"delete_recursive", &test_core_rmdir__delete_recursive, 6},
-	{"fail_to_delete_non_empty_dir", &test_core_rmdir__fail_to_delete_non_empty_dir, 6},
-	{"0", &test_core_string__0, 7},
-	{"1", &test_core_string__1, 7},
-	{"int32", &test_core_strtol__int32, 8},
-	{"int64", &test_core_strtol__int64, 8},
-	{"0", &test_core_vector__0, 9},
-	{"1", &test_core_vector__1, 9},
-	{"2", &test_core_vector__2, 9}
+    {"dont_traverse_dot", &test_core_dirent__dont_traverse_dot, 0},
+	{"traverse_subfolder", &test_core_dirent__traverse_subfolder, 0},
+	{"traverse_slash_terminated_folder", &test_core_dirent__traverse_slash_terminated_folder, 0},
+	{"dont_traverse_empty_folders", &test_core_dirent__dont_traverse_empty_folders, 0},
+	{"traverse_weird_filenames", &test_core_dirent__traverse_weird_filenames, 0},
+	{"0", &test_core_filebuf__0, 1},
+	{"1", &test_core_filebuf__1, 1},
+	{"2", &test_core_filebuf__2, 1},
+	{"streq", &test_core_oid__streq, 2},
+	{"0", &test_core_path__0, 3},
+	{"1", &test_core_path__1, 3},
+	{"2", &test_core_path__2, 3},
+	{"5", &test_core_path__5, 3},
+	{"6", &test_core_path__6, 3},
+	{"delete_recursive", &test_core_rmdir__delete_recursive, 4},
+	{"fail_to_delete_non_empty_dir", &test_core_rmdir__fail_to_delete_non_empty_dir, 4},
+	{"0", &test_core_string__0, 5},
+	{"1", &test_core_string__1, 5},
+	{"int32", &test_core_strtol__int32, 6},
+	{"int64", &test_core_strtol__int64, 6},
+	{"0", &test_core_vector__0, 7},
+	{"1", &test_core_vector__1, 7},
+	{"2", &test_core_vector__2, 7},
+	{"parsing", &test_network_remotes__parsing, 8},
+	{"refspec_parsing", &test_network_remotes__refspec_parsing, 8},
+	{"fnmatch", &test_network_remotes__fnmatch, 8},
+	{"transform", &test_network_remotes__transform, 8},
+	{"hash_single_file", &test_status_single__hash_single_file, 9},
+	{"whole_repository", &test_status_worktree__whole_repository, 10},
+	{"empty_repository", &test_status_worktree__empty_repository, 10}
 };
 
 static const struct clay_suite _all_suites[] = {
     {
-        "status::single",
+        "core::dirent",
         {NULL, NULL, 0},
         {NULL, NULL, 0},
-        &_all_callbacks[0], 1
-    },
-	{
-        "status::worktree",
-        {"initialize", &test_status_worktree__initialize, 1},
-        {"cleanup", &test_status_worktree__cleanup, 1},
-        &_all_callbacks[1], 2
-    },
-	{
-        "network::remotes",
-        {"initialize", &test_network_remotes__initialize, 2},
-        {"cleanup", &test_network_remotes__cleanup, 2},
-        &_all_callbacks[3], 4
+        &_all_callbacks[0], 5
     },
 	{
-        "core::dirent",
+        "core::filebuf",
         {NULL, NULL, 0},
         {NULL, NULL, 0},
-        &_all_callbacks[7], 5
+        &_all_callbacks[5], 3
     },
 	{
-        "core::filebuf",
-        {NULL, NULL, 0},
+        "core::oid",
+        {"initialize", &test_core_oid__initialize, 2},
         {NULL, NULL, 0},
-        &_all_callbacks[12], 3
+        &_all_callbacks[8], 1
     },
 	{
         "core::path",
         {NULL, NULL, 0},
         {NULL, NULL, 0},
-        &_all_callbacks[15], 5
+        &_all_callbacks[9], 5
     },
 	{
         "core::rmdir",
-        {"initialize", &test_core_rmdir__initialize, 6},
+        {"initialize", &test_core_rmdir__initialize, 4},
         {NULL, NULL, 0},
-        &_all_callbacks[20], 2
+        &_all_callbacks[14], 2
     },
 	{
         "core::string",
         {NULL, NULL, 0},
         {NULL, NULL, 0},
-        &_all_callbacks[22], 2
+        &_all_callbacks[16], 2
     },
 	{
         "core::strtol",
         {NULL, NULL, 0},
         {NULL, NULL, 0},
-        &_all_callbacks[24], 2
+        &_all_callbacks[18], 2
     },
 	{
         "core::vector",
         {NULL, NULL, 0},
         {NULL, NULL, 0},
-        &_all_callbacks[26], 3
+        &_all_callbacks[20], 3
+    },
+	{
+        "network::remotes",
+        {"initialize", &test_network_remotes__initialize, 8},
+        {"cleanup", &test_network_remotes__cleanup, 8},
+        &_all_callbacks[23], 4
+    },
+	{
+        "status::single",
+        {NULL, NULL, 0},
+        {NULL, NULL, 0},
+        &_all_callbacks[27], 1
+    },
+	{
+        "status::worktree",
+        {"initialize", &test_status_worktree__initialize, 10},
+        {"cleanup", &test_status_worktree__cleanup, 10},
+        &_all_callbacks[28], 2
     }
 };
 
-static const char _suites_str[] = "status::single, status::worktree, network::remotes, core::dirent, core::filebuf, core::path, core::rmdir, core::string, core::strtol, core::vector";
+static const char _suites_str[] = "core::dirent, core::filebuf, core::oid, core::path, core::rmdir, core::string, core::strtol, core::vector, network::remotes, status::single, status::worktree";
 
 int _MAIN_CC main(int argc, char *argv[])
 {
     return clay_test(
         argc, argv, _suites_str,
-        _all_callbacks, 29,
-        _all_suites, 10
+        _all_callbacks, 30,
+        _all_suites, 11
     );
 }
diff --git a/tests-clay/core/oid.c b/tests-clay/core/oid.c
new file mode 100644
index 0000000..44597c5
--- /dev/null
+++ b/tests-clay/core/oid.c
@@ -0,0 +1,18 @@
+#include "clay_libgit2.h"
+
+static git_oid id;
+const char *str_oid = "ae90f12eea699729ed24555e40b9fd669da12a12";
+
+void test_core_oid__initialize(void)
+{
+	cl_git_pass(git_oid_fromstr(&id, str_oid));
+}
+
+void test_core_oid__streq(void)
+{
+	cl_assert(git_oid_streq(&id, str_oid) == GIT_SUCCESS);
+	cl_assert(git_oid_streq(&id, "deadbeefdeadbeefdeadbeefdeadbeefdeadbeef") == GIT_ERROR);
+
+	cl_assert(git_oid_streq(&id, "deadbeef") == GIT_ENOTOID);
+	cl_assert(git_oid_streq(&id, "I'm not an oid.... :)") == GIT_ENOTOID);
+}
\ No newline at end of file