thodg/libgit2

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 383627b..eaf58ab 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -147,11 +147,14 @@ IF (BUILD_TESTS)
 ENDIF ()
 
 IF (BUILD_CLAR)
+
 	FIND_PACKAGE(PythonInterp REQUIRED)
 
 	SET(CLAR_FIXTURES "${CMAKE_CURRENT_SOURCE_DIR}/tests/resources/")
 	SET(CLAR_PATH "${CMAKE_CURRENT_SOURCE_DIR}/tests-clar")
+	SET(CLAR_RESOURCES "${CMAKE_CURRENT_SOURCE_DIR}/tests-clar/resources" CACHE PATH "Path to test resources.")
 	ADD_DEFINITIONS(-DCLAR_FIXTURE_PATH=\"${CLAR_FIXTURES}\")
+	ADD_DEFINITIONS(-DCLAR_RESOURCES=\"${TEST_RESOURCES}\")
 
 	INCLUDE_DIRECTORIES(${CLAR_PATH})
 	FILE(GLOB_RECURSE SRC_TEST ${CLAR_PATH}/*/*.c ${CLAR_PATH}/clar_helpers.c ${CLAR_PATH}/testlib.c)
diff --git a/tests-clar/commit/parse.c b/tests-clar/commit/parse.c
new file mode 100644
index 0000000..bbb502c
--- /dev/null
+++ b/tests-clar/commit/parse.c
@@ -0,0 +1,350 @@
+#include "clar_libgit2.h"
+#include <git2/types.h>
+#include "commit.h"
+#include "signature.h"
+
+// Fixture setup
+static git_repository *g_repo;
+void test_commit_parse__initialize(void)
+{
+   g_repo = cl_git_sandbox_init("testrepo");
+}
+void test_commit_parse__cleanup(void)
+{
+   cl_git_sandbox_cleanup();
+}
+
+
+// Header parsing
+typedef struct {
+   const char *line;
+   const char *header;
+} parse_test_case;
+
+static parse_test_case passing_header_cases[] = {
+   { "parent 05452d6349abcd67aa396dfb28660d765d8b2a36\n", "parent " },
+   { "tree 05452d6349abcd67aa396dfb28660d765d8b2a36\n", "tree " },
+   { "random_heading 05452d6349abcd67aa396dfb28660d765d8b2a36\n", "random_heading " },
+   { "stuck_heading05452d6349abcd67aa396dfb28660d765d8b2a36\n", "stuck_heading" },
+   { "tree 5F4BEFFC0759261D015AA63A3A85613FF2F235DE\n", "tree " },
+   { "tree 1A669B8AB81B5EB7D9DB69562D34952A38A9B504\n", "tree " },
+   { "tree 5B20DCC6110FCC75D31C6CEDEBD7F43ECA65B503\n", "tree " },
+   { "tree 173E7BF00EA5C33447E99E6C1255954A13026BE4\n", "tree " },
+   { NULL, NULL }
+};
+
+static parse_test_case failing_header_cases[] = {
+   { "parent 05452d6349abcd67aa396dfb28660d765d8b2a36", "parent " },
+   { "05452d6349abcd67aa396dfb28660d765d8b2a36\n", "tree " },
+   { "parent05452d6349abcd67aa396dfb28660d765d8b2a6a\n", "parent " },
+   { "parent 05452d6349abcd67aa396dfb280d765d8b2a6\n", "parent " },
+   { "tree  05452d6349abcd67aa396dfb28660d765d8b2a36\n", "tree " },
+   { "parent 0545xd6349abcd67aa396dfb28660d765d8b2a36\n", "parent " },
+   { "parent 0545xd6349abcd67aa396dfb28660d765d8b2a36FF\n", "parent " },
+   { "", "tree " },
+   { "", "" },
+   { NULL, NULL }
+};
+
+void test_commit_parse__header(void)
+{
+   git_oid oid;
+
+   parse_test_case *testcase;
+   for (testcase = passing_header_cases; testcase->line != NULL; testcase++)
+   {
+      const char *line = testcase->line;
+      const char *line_end = line + strlen(line);
+
+      cl_git_pass(git_oid__parse(&oid, &line, line_end, testcase->header));
+      cl_assert(line == line_end);
+   }
+
+   for (testcase = failing_header_cases; testcase->line != NULL; testcase++)
+   {
+      const char *line = testcase->line;
+      const char *line_end = line + strlen(line);
+
+      cl_git_fail(git_oid__parse(&oid, &line, line_end, testcase->header));
+   }
+}
+
+
+// Signature parsing
+typedef struct {
+   const char *string;
+   const char *header;
+   const char *name;
+   const char *email;
+   git_time_t time;
+   int offset;
+} passing_signature_test_case;
+
+passing_signature_test_case passing_signature_cases[] = {
+	{"author Vicent Marti <tanoku@gmail.com> 12345 \n", "author ", "Vicent Marti", "tanoku@gmail.com", 12345, 0},
+	{"author Vicent Marti <> 12345 \n", "author ", "Vicent Marti", "", 12345, 0},
+	{"author Vicent Marti <tanoku@gmail.com> 231301 +1020\n", "author ", "Vicent Marti", "tanoku@gmail.com", 231301, 620},
+	{"author Vicent Marti with an outrageously long name which will probably overflow the buffer <tanoku@gmail.com> 12345 \n", "author ", "Vicent Marti with an outrageously long name which will probably overflow the buffer", "tanoku@gmail.com", 12345, 0},
+	{"author Vicent Marti <tanokuwithaveryveryverylongemailwhichwillprobablyvoverflowtheemailbuffer@gmail.com> 12345 \n", "author ", "Vicent Marti", "tanokuwithaveryveryverylongemailwhichwillprobablyvoverflowtheemailbuffer@gmail.com", 12345, 0},
+	{"committer Vicent Marti <tanoku@gmail.com> 123456 +0000 \n", "committer ", "Vicent Marti", "tanoku@gmail.com", 123456, 0},
+	{"committer Vicent Marti <tanoku@gmail.com> 123456 +0100 \n", "committer ", "Vicent Marti", "tanoku@gmail.com", 123456, 60},
+	{"committer Vicent Marti <tanoku@gmail.com> 123456 -0100 \n", "committer ", "Vicent Marti", "tanoku@gmail.com", 123456, -60},
+	// Parse a signature without an author field
+	{"committer <tanoku@gmail.com> 123456 -0100 \n", "committer ", "", "tanoku@gmail.com", 123456, -60},
+	// Parse a signature without an author field
+	{"committer  <tanoku@gmail.com> 123456 -0100 \n", "committer ", "", "tanoku@gmail.com", 123456, -60},
+	// Parse a signature with an empty author field
+	{"committer   <tanoku@gmail.com> 123456 -0100 \n", "committer ", "", "tanoku@gmail.com", 123456, -60},
+	// Parse a signature with an empty email field
+	{"committer Vicent Marti <> 123456 -0100 \n", "committer ", "Vicent Marti", "", 123456, -60},
+	// Parse a signature with an empty email field
+	{"committer Vicent Marti < > 123456 -0100 \n", "committer ", "Vicent Marti", "", 123456, -60},
+	// Parse a signature with empty name and email
+	{"committer <> 123456 -0100 \n", "committer ", "", "", 123456, -60},
+	// Parse a signature with empty name and email
+	{"committer  <> 123456 -0100 \n", "committer ", "", "", 123456, -60},
+	// Parse a signature with empty name and email
+	{"committer  < > 123456 -0100 \n", "committer ", "", "", 123456, -60},
+	// Parse an obviously invalid signature
+	{"committer foo<@bar> 123456 -0100 \n", "committer ", "foo", "@bar", 123456, -60},
+	// Parse an obviously invalid signature
+	{"committer    foo<@bar>123456 -0100 \n", "committer ", "foo", "@bar", 123456, -60},
+	// Parse an obviously invalid signature
+	{"committer <>\n", "committer ", "", "", 0, 0},
+	{"committer Vicent Marti <tanoku@gmail.com> 123456 -1500 \n", "committer ", "Vicent Marti", "tanoku@gmail.com", 0, 0},
+	{"committer Vicent Marti <tanoku@gmail.com> 123456 +0163 \n", "committer ", "Vicent Marti", "tanoku@gmail.com", 0, 0},
+	{"author Vicent Marti <tanoku@gmail.com> notime \n", "author ", "Vicent Marti", "tanoku@gmail.com", 0, 0},
+	{"author Vicent Marti <tanoku@gmail.com> 123456 notimezone \n", "author ", "Vicent Marti", "tanoku@gmail.com", 0, 0},
+	{"author Vicent Marti <tanoku@gmail.com> notime +0100\n", "author ", "Vicent Marti", "tanoku@gmail.com", 0, 0},
+	{"author Vicent Marti <tanoku@gmail.com>\n", "author ", "Vicent Marti", "tanoku@gmail.com", 0, 0},
+	{"author A U Thor <author@example.com>,  C O. Miter <comiter@example.com> 1234567890 -0700\n", "author ", "A U Thor", "author@example.com", 1234567890, -420},
+	{"author A U Thor <author@example.com> and others 1234567890 -0700\n", "author ", "A U Thor", "author@example.com", 1234567890, -420},
+	{"author A U Thor <author@example.com> and others 1234567890\n", "author ", "A U Thor", "author@example.com", 1234567890, 0},
+	{"author A U Thor> <author@example.com> and others 1234567890\n", "author ", "A U Thor>", "author@example.com", 1234567890, 0},
+   {NULL,NULL,NULL,NULL,0,0}
+};
+
+typedef struct {
+   const char *string;
+   const char *header;
+} failing_signature_test_case;
+
+failing_signature_test_case failing_signature_cases[] = {
+	{"committer Vicent Marti tanoku@gmail.com> 123456 -0100 \n", "committer "},
+	{"author Vicent Marti <tanoku@gmail.com> 12345 \n", "author  "},
+	{"author Vicent Marti <tanoku@gmail.com> 12345 \n", "committer "},
+	{"author Vicent Marti 12345 \n", "author "},
+	{"author Vicent Marti <broken@email 12345 \n", "author "},
+	{"committer Vicent Marti ><\n", "committer "},
+	{"author ", "author "},
+   {NULL,NULL,}
+};
+
+void test_commit_parse__signature(void)
+{
+   passing_signature_test_case *passcase;
+   failing_signature_test_case *failcase;
+
+   for (passcase = passing_signature_cases; passcase->string != NULL; passcase++)
+   {
+      const char *str = passcase->string;
+      size_t len = strlen(passcase->string);
+      struct git_signature person = {NULL, NULL, {0, 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);
+      cl_assert(passcase->time == person.when.time);
+      cl_assert(passcase->offset == person.when.offset);
+      git__free(person.name); git__free(person.email);
+   }
+
+   for (failcase = failing_signature_cases; failcase->string != NULL; failcase++)
+   {
+      const char *str = failcase->string;
+      size_t len = strlen(failcase->string);
+      git_signature person = {NULL, NULL, {0, 0}};
+      cl_git_fail(git_signature__parse(&person, &str, str + len, failcase->header, '\n'));
+      git__free(person.name); git__free(person.email);
+   }
+}
+
+
+
+static char *failing_commit_cases[] = {
+// empty commit
+"",
+// random garbage
+"asd97sa9du902e9a0jdsuusad09as9du098709aweu8987sd\n",
+// broken endlines 1
+"tree f6c0dad3c7b3481caa9d73db21f91964894a945b\r\n\
+parent 05452d6349abcd67aa396dfb28660d765d8b2a36\r\n\
+author Vicent Marti <tanoku@gmail.com> 1273848544 +0200\r\n\
+committer Vicent Marti <tanoku@gmail.com> 1273848544 +0200\r\n\
+\r\n\
+a test commit with broken endlines\r\n",
+// broken endlines 2
+"tree f6c0dad3c7b3481caa9d73db21f91964894a945b\
+parent 05452d6349abcd67aa396dfb28660d765d8b2a36\
+author Vicent Marti <tanoku@gmail.com> 1273848544 +0200\
+committer Vicent Marti <tanoku@gmail.com> 1273848544 +0200\
+\
+another test commit with broken endlines",
+// starting endlines
+"\ntree f6c0dad3c7b3481caa9d73db21f91964894a945b\n\
+parent 05452d6349abcd67aa396dfb28660d765d8b2a36\n\
+author Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
+committer Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
+\n\
+a test commit with a starting endline\n",
+// corrupted commit 1
+"tree f6c0dad3c7b3481caa9d73db21f91964894a945b\n\
+parent 05452d6349abcd67aa396df",
+// corrupted commit 2
+"tree f6c0dad3c7b3481caa9d73db21f91964894a945b\n\
+parent ",
+// corrupted commit 3
+"tree f6c0dad3c7b3481caa9d73db21f91964894a945b\n\
+parent ",
+// corrupted commit 4
+"tree f6c0dad3c7b3481caa9d73db21f91964894a945b\n\
+par",
+};
+
+
+static char *passing_commit_cases[] = {
+// simple commit with no message
+"tree 1810dff58d8a660512d4832e740f692884338ccd\n\
+author Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
+committer Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
+\n",
+// simple commit, no parent
+"tree 1810dff58d8a660512d4832e740f692884338ccd\n\
+author Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
+committer Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
+\n\
+a simple commit which works\n",
+// simple commit, no parent, no newline in message
+"tree 1810dff58d8a660512d4832e740f692884338ccd\n\
+author Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
+committer Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
+\n\
+a simple commit which works",
+// simple commit, 1 parent
+"tree 1810dff58d8a660512d4832e740f692884338ccd\n\
+parent e90810b8df3e80c413d903f631643c716887138d\n\
+author Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
+committer Vicent Marti <tanoku@gmail.com> 1273848544 +0200\n\
+\n\
+a simple commit which works\n",
+};
+
+void test_commit_parse__entire_commit(void)
+{
+	const int broken_commit_count = sizeof(failing_commit_cases) / sizeof(*failing_commit_cases);
+	const int working_commit_count = sizeof(passing_commit_cases) / sizeof(*passing_commit_cases);
+	int i;
+
+	for (i = 0; i < broken_commit_count; ++i) {
+		git_commit *commit;
+		commit = (git_commit*)git__malloc(sizeof(git_commit));
+		memset(commit, 0x0, sizeof(git_commit));
+		commit->object.repo = g_repo;
+
+		cl_git_fail(git_commit__parse_buffer(
+                     commit,
+                     failing_commit_cases[i],
+                     strlen(failing_commit_cases[i]))
+         );
+
+		git_commit__free(commit);
+	}
+
+	for (i = 0; i < working_commit_count; ++i) {
+		git_commit *commit;
+
+		commit = (git_commit*)git__malloc(sizeof(git_commit));
+		memset(commit, 0x0, sizeof(git_commit));
+		commit->object.repo = g_repo;
+
+		cl_git_pass(git_commit__parse_buffer(
+                     commit,
+                     passing_commit_cases[i],
+                     strlen(passing_commit_cases[i]))
+         );
+
+		git_commit__free(commit);
+
+		commit = (git_commit*)git__malloc(sizeof(git_commit));
+		memset(commit, 0x0, sizeof(git_commit));
+		commit->object.repo = g_repo;
+
+		cl_git_pass(git_commit__parse_buffer(
+                     commit,
+                     passing_commit_cases[i],
+                     strlen(passing_commit_cases[i]))
+         );
+
+		git_commit__free(commit);
+	}
+}
+
+
+// query the details on a parsed commit
+void test_commit_parse__details0(void) {
+   static const char *commit_ids[] = {
+      "a4a7dce85cf63874e984719f4fdd239f5145052f", /* 0 */
+      "9fd738e8f7967c078dceed8190330fc8648ee56a", /* 1 */
+      "4a202b346bb0fb0db7eff3cffeb3c70babbd2045", /* 2 */
+      "c47800c7266a2be04c571c04d5a6614691ea99bd", /* 3 */
+      "8496071c1b46c854b31185ea97743be6a8774479", /* 4 */
+      "5b5b025afb0b4c913b4c338a42934a3863bf3644", /* 5 */
+      "a65fedf39aefe402d3bb6e24df4d4f5fe4547750", /* 6 */
+   };
+	const size_t commit_count = sizeof(commit_ids) / sizeof(const char *);
+   unsigned int i;
+
+	for (i = 0; i < commit_count; ++i) {
+		git_oid id;
+		git_commit *commit;
+
+		const git_signature *author, *committer;
+		const char *message;
+		git_time_t commit_time;
+		unsigned int parents, p;
+		git_commit *parent = NULL, *old_parent = NULL;
+
+		git_oid_fromstr(&id, commit_ids[i]);
+
+		cl_git_pass(git_commit_lookup(&commit, g_repo, &id));
+
+		message = git_commit_message(commit);
+		author = git_commit_author(commit);
+		committer = git_commit_committer(commit);
+		commit_time = git_commit_time(commit);
+		parents = git_commit_parentcount(commit);
+
+		cl_assert(strcmp(author->name, "Scott Chacon") == 0);
+		cl_assert(strcmp(author->email, "schacon@gmail.com") == 0);
+		cl_assert(strcmp(committer->name, "Scott Chacon") == 0);
+		cl_assert(strcmp(committer->email, "schacon@gmail.com") == 0);
+		cl_assert(message != NULL);
+		cl_assert(strchr(message, '\n') != NULL);
+		cl_assert(commit_time > 0);
+		cl_assert(parents <= 2);
+		for (p = 0;p < parents;p++) {
+			if (old_parent != NULL)
+				git_commit_free(old_parent);
+
+			old_parent = parent;
+			cl_git_pass(git_commit_parent(&parent, commit, p));
+			cl_assert(parent != NULL);
+			cl_assert(git_commit_author(parent) != NULL); // is it really a commit?
+		}
+		git_commit_free(old_parent);
+		git_commit_free(parent);
+
+		cl_git_fail(git_commit_parent(&parent, commit, parents));
+		git_commit_free(commit);
+	}
+}
+
diff --git a/tests-clar/commit/signature.c b/tests-clar/commit/signature.c
new file mode 100644
index 0000000..605b833
--- /dev/null
+++ b/tests-clar/commit/signature.c
@@ -0,0 +1,65 @@
+#include "clar_libgit2.h"
+
+static int try_build_signature(const char *name, const char *email, git_time_t time, int offset)
+{
+	git_signature *sign;
+	int error = GIT_SUCCESS;
+
+	if ((error =  git_signature_new(&sign, name, email, time, offset)) < GIT_SUCCESS)
+		return error;
+
+	git_signature_free((git_signature *)sign);
+
+	return error;
+}
+
+
+void test_commit_signature__create_trim(void)
+{
+   // creating a signature trims leading and trailing spaces
+   git_signature *sign;
+	cl_git_pass(git_signature_new(&sign, "  nulltoken ", "   emeric.fermas@gmail.com     ", 1234567890, 60));
+	cl_assert(strcmp(sign->name, "nulltoken") == 0);
+	cl_assert(strcmp(sign->email, "emeric.fermas@gmail.com") == 0);
+	git_signature_free((git_signature *)sign);
+}
+
+
+void test_commit_signature__create_empties(void)
+{
+   // can not create a signature with empty name or email
+	cl_git_pass(try_build_signature("nulltoken", "emeric.fermas@gmail.com", 1234567890, 60));
+
+	cl_git_fail(try_build_signature("", "emeric.fermas@gmail.com", 1234567890, 60));
+	cl_git_fail(try_build_signature("   ", "emeric.fermas@gmail.com", 1234567890, 60));
+	cl_git_fail(try_build_signature("nulltoken", "", 1234567890, 60));
+	cl_git_fail(try_build_signature("nulltoken", "  ", 1234567890, 60));
+}
+
+void test_commit_signature__create_one_char(void)
+{
+   // creating a one character signature
+	git_signature *sign;
+	cl_git_pass(git_signature_new(&sign, "x", "foo@bar.baz", 1234567890, 60));
+	cl_assert(strcmp(sign->name, "x") == 0);
+	cl_assert(strcmp(sign->email, "foo@bar.baz") == 0);
+	git_signature_free((git_signature *)sign);
+}
+
+void test_commit_signature__create_two_char(void)
+{
+   // creating a two character signature
+	git_signature *sign;
+	cl_git_pass(git_signature_new(&sign, "xx", "x@y.z", 1234567890, 60));
+	cl_assert(strcmp(sign->name, "xx") == 0);
+	cl_assert(strcmp(sign->email, "x@y.z") == 0);
+	git_signature_free((git_signature *)sign);
+}
+
+void test_commit_signature__create_zero_char(void)
+{
+   // creating a zero character signature
+	git_signature *sign;
+	cl_git_fail(git_signature_new(&sign, "", "x@y.z", 1234567890, 60));
+	cl_assert(sign == NULL);
+}
diff --git a/tests-clar/commit/write.c b/tests-clar/commit/write.c
new file mode 100644
index 0000000..66fe2bf
--- /dev/null
+++ b/tests-clar/commit/write.c
@@ -0,0 +1,141 @@
+#include "clar_libgit2.h"
+
+static const char *committer_name = "Vicent Marti";
+static const char *committer_email = "vicent@github.com";
+static const char *commit_message = "This commit has been created in memory\n\
+   This is a commit created in memory and it will be written back to disk\n";
+static const char *tree_oid = "1810dff58d8a660512d4832e740f692884338ccd";
+static const char *root_commit_message = "This is a root commit\n\
+This is a root commit and should be the only one in this branch\n";
+
+
+// Fixture setup
+static git_repository *g_repo;
+void test_commit_write__initialize(void)
+{
+   g_repo = cl_git_sandbox_init("testrepo");
+}
+void test_commit_write__cleanup(void)
+{
+   cl_git_sandbox_cleanup();
+}
+
+
+// write a new commit object from memory to disk
+void test_commit_write__from_memory(void)
+{
+   git_commit *commit;
+   git_oid tree_id, parent_id, commit_id;
+   git_signature *author, *committer;
+   const git_signature *author1, *committer1;
+   git_commit *parent;
+   git_tree *tree;
+   const char *commit_id_str = "8496071c1b46c854b31185ea97743be6a8774479";
+
+   git_oid_fromstr(&tree_id, tree_oid);
+   cl_git_pass(git_tree_lookup(&tree, g_repo, &tree_id));
+
+   git_oid_fromstr(&parent_id, commit_id_str);
+   cl_git_pass(git_commit_lookup(&parent, g_repo, &parent_id));
+
+   /* create signatures */
+   cl_git_pass(git_signature_new(&committer, committer_name, committer_email, 123456789, 60));
+   cl_git_pass(git_signature_new(&author, committer_name, committer_email, 987654321, 90));
+
+   cl_git_pass(git_commit_create_v(
+      &commit_id, /* out id */
+      g_repo,
+      NULL, /* do not update the HEAD */
+      author,
+      committer,
+      NULL,
+      commit_message,
+      tree,
+      1, parent));
+
+   git_object_free((git_object *)parent);
+   git_object_free((git_object *)tree);
+
+   git_signature_free(committer);
+   git_signature_free(author);
+
+   cl_git_pass(git_commit_lookup(&commit, g_repo, &commit_id));
+
+   /* Check attributes were set correctly */
+   author1 = git_commit_author(commit);
+   cl_assert(author1 != NULL);
+   cl_assert(strcmp(author1->name, committer_name) == 0);
+   cl_assert(strcmp(author1->email, committer_email) == 0);
+   cl_assert(author1->when.time == 987654321);
+   cl_assert(author1->when.offset == 90);
+
+   committer1 = git_commit_committer(commit);
+   cl_assert(committer1 != NULL);
+   cl_assert(strcmp(committer1->name, committer_name) == 0);
+   cl_assert(strcmp(committer1->email, committer_email) == 0);
+   cl_assert(committer1->when.time == 123456789);
+   cl_assert(committer1->when.offset == 60);
+
+   cl_assert(strcmp(git_commit_message(commit), commit_message) == 0);
+
+#ifndef GIT_WIN32
+   cl_assert((loose_object_mode(REPOSITORY_FOLDER, (git_object *)commit) & 0777) == GIT_OBJECT_FILE_MODE);
+#endif
+}
+
+
+
+// create a root commit
+void test_commit_write__root(void)
+{
+	git_commit *commit;
+	git_oid tree_id, commit_id;
+	const git_oid *branch_oid;
+	git_signature *author, *committer;
+	const char *branch_name = "refs/heads/root-commit-branch";
+	git_reference *head, *branch;
+	char *head_old;
+	git_tree *tree;
+
+	git_oid_fromstr(&tree_id, tree_oid);
+	cl_git_pass(git_tree_lookup(&tree, g_repo, &tree_id));
+
+	/* create signatures */
+	cl_git_pass(git_signature_new(&committer, committer_name, committer_email, 123456789, 60));
+	cl_git_pass(git_signature_new(&author, committer_name, committer_email, 987654321, 90));
+
+	/* First we need to update HEAD so it points to our non-existant branch */
+	cl_git_pass(git_reference_lookup(&head, g_repo, "HEAD"));
+	cl_assert(git_reference_type(head) == GIT_REF_SYMBOLIC);
+	head_old = git__strdup(git_reference_target(head));
+	cl_assert(head_old != NULL);
+
+	cl_git_pass(git_reference_set_target(head, branch_name));
+
+	cl_git_pass(git_commit_create_v(
+		&commit_id, /* out id */
+		g_repo,
+		"HEAD",
+		author,
+		committer,
+		NULL,
+		root_commit_message,
+		tree,
+		0));
+
+	git_object_free((git_object *)tree);
+	git_signature_free(committer);
+	git_signature_free(author);
+
+	/*
+	 * The fact that creating a commit works has already been
+	 * tested. Here we just make sure it's our commit and that it was
+	 * written as a root commit.
+	 */
+	cl_git_pass(git_commit_lookup(&commit, g_repo, &commit_id));
+	cl_assert(git_commit_parentcount(commit) == 0);
+	cl_git_pass(git_reference_lookup(&branch, g_repo, branch_name));
+	branch_oid = git_reference_oid(branch);
+	cl_git_pass(git_oid_cmp(branch_oid, &commit_id));
+	cl_assert(!strcmp(git_commit_message(commit), root_commit_message));
+}
diff --git a/tests/resources/testrepo/.gitted/HEAD b/tests/resources/testrepo/.gitted/HEAD
new file mode 100644
index 0000000..cb089cd
--- /dev/null
+++ b/tests/resources/testrepo/.gitted/HEAD
@@ -0,0 +1 @@
+ref: refs/heads/master
diff --git a/tests/resources/testrepo/.gitted/config b/tests/resources/testrepo/.gitted/config
new file mode 100644
index 0000000..1a5aacd
--- /dev/null
+++ b/tests/resources/testrepo/.gitted/config
@@ -0,0 +1,8 @@
+[core]
+        repositoryformatversion = 0
+        filemode = true
+        bare = true
+        logallrefupdates = true
+[remote "test"]
+	url = git://github.com/libgit2/libgit2
+	fetch = +refs/heads/*:refs/remotes/test/*
diff --git a/tests/resources/testrepo/.gitted/head-tracker b/tests/resources/testrepo/.gitted/head-tracker
new file mode 100644
index 0000000..40d876b
--- /dev/null
+++ b/tests/resources/testrepo/.gitted/head-tracker
@@ -0,0 +1 @@
+ref: HEAD
diff --git a/tests/resources/testrepo/.gitted/index b/tests/resources/testrepo/.gitted/index
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diff --git a/tests/resources/testrepo/.gitted/objects/pack/pack-a81e489679b7d3418f9ab594bda8ceb37dd4c695.pack b/tests/resources/testrepo/.gitted/objects/pack/pack-a81e489679b7d3418f9ab594bda8ceb37dd4c695.pack
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diff --git a/tests/resources/testrepo/.gitted/objects/pack/pack-d7c6adf9f61318f041845b01440d09aa7a91e1b5.idx b/tests/resources/testrepo/.gitted/objects/pack/pack-d7c6adf9f61318f041845b01440d09aa7a91e1b5.idx
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diff --git a/tests/resources/testrepo/.gitted/objects/pack/pack-d7c6adf9f61318f041845b01440d09aa7a91e1b5.pack b/tests/resources/testrepo/.gitted/objects/pack/pack-d7c6adf9f61318f041845b01440d09aa7a91e1b5.pack
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diff --git a/tests/resources/testrepo/.gitted/objects/pack/pack-d85f5d483273108c9d8dd0e4728ccf0b2982423a.idx b/tests/resources/testrepo/.gitted/objects/pack/pack-d85f5d483273108c9d8dd0e4728ccf0b2982423a.idx
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diff --git a/tests/resources/testrepo/.gitted/objects/pack/pack-d85f5d483273108c9d8dd0e4728ccf0b2982423a.pack b/tests/resources/testrepo/.gitted/objects/pack/pack-d85f5d483273108c9d8dd0e4728ccf0b2982423a.pack
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diff --git a/tests/resources/testrepo/.gitted/packed-refs b/tests/resources/testrepo/.gitted/packed-refs
new file mode 100644
index 0000000..52f5e87
--- /dev/null
+++ b/tests/resources/testrepo/.gitted/packed-refs
@@ -0,0 +1,3 @@
+# pack-refs with: peeled 
+41bc8c69075bbdb46c5c6f0566cc8cc5b46e8bd9 refs/heads/packed
+5b5b025afb0b4c913b4c338a42934a3863bf3644 refs/heads/packed-test
diff --git a/tests/resources/testrepo/.gitted/refs/heads/br2 b/tests/resources/testrepo/.gitted/refs/heads/br2
new file mode 100644
index 0000000..aab87e5
--- /dev/null
+++ b/tests/resources/testrepo/.gitted/refs/heads/br2
@@ -0,0 +1 @@
+a4a7dce85cf63874e984719f4fdd239f5145052f
diff --git a/tests/resources/testrepo/.gitted/refs/heads/master b/tests/resources/testrepo/.gitted/refs/heads/master
new file mode 100644
index 0000000..3d8f0a4
--- /dev/null
+++ b/tests/resources/testrepo/.gitted/refs/heads/master
@@ -0,0 +1 @@
+a65fedf39aefe402d3bb6e24df4d4f5fe4547750
diff --git a/tests/resources/testrepo/.gitted/refs/heads/packed-test b/tests/resources/testrepo/.gitted/refs/heads/packed-test
new file mode 100644
index 0000000..f2c14ad
--- /dev/null
+++ b/tests/resources/testrepo/.gitted/refs/heads/packed-test
@@ -0,0 +1 @@
+4a202b346bb0fb0db7eff3cffeb3c70babbd2045
diff --git a/tests/resources/testrepo/.gitted/refs/heads/subtrees b/tests/resources/testrepo/.gitted/refs/heads/subtrees
new file mode 100644
index 0000000..ad27e0b
--- /dev/null
+++ b/tests/resources/testrepo/.gitted/refs/heads/subtrees
@@ -0,0 +1 @@
+763d71aadf09a7951596c9746c024e7eece7c7af
diff --git a/tests/resources/testrepo/.gitted/refs/heads/test b/tests/resources/testrepo/.gitted/refs/heads/test
new file mode 100644
index 0000000..399c4c7
--- /dev/null
+++ b/tests/resources/testrepo/.gitted/refs/heads/test
@@ -0,0 +1 @@
+e90810b8df3e80c413d903f631643c716887138d
diff --git a/tests/resources/testrepo/.gitted/refs/tags/e90810b b/tests/resources/testrepo/.gitted/refs/tags/e90810b
new file mode 100644
index 0000000..584495d
--- /dev/null
+++ b/tests/resources/testrepo/.gitted/refs/tags/e90810b
@@ -0,0 +1 @@
+7b4384978d2493e851f9cca7858815fac9b10980
diff --git a/tests/resources/testrepo/.gitted/refs/tags/point_to_blob b/tests/resources/testrepo/.gitted/refs/tags/point_to_blob
new file mode 100644
index 0000000..f874a3f
--- /dev/null
+++ b/tests/resources/testrepo/.gitted/refs/tags/point_to_blob
@@ -0,0 +1 @@
+1385f264afb75a56a5bec74243be9b367ba4ca08
diff --git a/tests/resources/testrepo/.gitted/refs/tags/test b/tests/resources/testrepo/.gitted/refs/tags/test
new file mode 100644
index 0000000..6ee952a
--- /dev/null
+++ b/tests/resources/testrepo/.gitted/refs/tags/test
@@ -0,0 +1 @@
+b25fa35b38051e4ae45d4222e795f9df2e43f1d1