thodg/libgit2

diff --git a/tests/refs/reflog/messages.c b/tests/refs/reflog/messages.c
index 9932f73..5b83d14 100644
--- a/tests/refs/reflog/messages.c
+++ b/tests/refs/reflog/messages.c
@@ -37,23 +37,23 @@ void test_refs_reflog_messages__setting_head_updates_reflog(void)
 	cl_git_pass(git_repository_set_head(g_repo, "refs/tags/test"));            /* 1 */
 	cl_git_pass(git_repository_set_head(g_repo, "refs/remotes/test/master"));  /* 0 */
 
-	reflog_check_entry(g_repo, GIT_HEAD_FILE, 4,
+	cl_reflog_check_entry(g_repo, GIT_HEAD_FILE, 4,
 		NULL, "refs/heads/haacked",
 		"foo@example.com",
 		"checkout: moving from master to haacked");
-	reflog_check_entry(g_repo, GIT_HEAD_FILE, 3,
+	cl_reflog_check_entry(g_repo, GIT_HEAD_FILE, 3,
 		NULL, "tags/test^{commit}",
 		"foo@example.com",
 		"checkout: moving from unborn to e90810b8df3e80c413d903f631643c716887138d");
-	reflog_check_entry(g_repo, GIT_HEAD_FILE, 2,
+	cl_reflog_check_entry(g_repo, GIT_HEAD_FILE, 2,
 		"tags/test^{commit}", "refs/heads/haacked",
 		"foo@example.com",
 		"checkout: moving from e90810b8df3e80c413d903f631643c716887138d to haacked");
-	reflog_check_entry(g_repo, GIT_HEAD_FILE, 1,
+	cl_reflog_check_entry(g_repo, GIT_HEAD_FILE, 1,
 		"refs/heads/haacked", "tags/test^{commit}",
 		"foo@example.com",
 		"checkout: moving from haacked to test");
-	reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
+	cl_reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
 		"tags/test^{commit}", "refs/remotes/test/master",
 		"foo@example.com",
 		"checkout: moving from e90810b8df3e80c413d903f631643c716887138d to test/master");
@@ -61,7 +61,7 @@ void test_refs_reflog_messages__setting_head_updates_reflog(void)
 	cl_git_pass(git_annotated_commit_from_revspec(&annotated, g_repo, "haacked~0"));
 	cl_git_pass(git_repository_set_head_detached_from_annotated(g_repo, annotated));
 
-	reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
+	cl_reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
 		NULL, "refs/heads/haacked",
 		"foo@example.com",
 		"checkout: moving from be3563ae3f795b2b4353bcce3a527ad0a4f7f644 to haacked~0");
@@ -96,14 +96,14 @@ void test_refs_reflog_messages__detaching_writes_reflog(void)
 	msg = "checkout: moving from master to e90810b8df3e80c413d903f631643c716887138d";
 	git_oid_fromstr(&id, "e90810b8df3e80c413d903f631643c716887138d");
 	cl_git_pass(git_repository_set_head_detached(g_repo, &id));
-	reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
+	cl_reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
 		"a65fedf39aefe402d3bb6e24df4d4f5fe4547750",
 		"e90810b8df3e80c413d903f631643c716887138d",
 		NULL, msg);
 
 	msg = "checkout: moving from e90810b8df3e80c413d903f631643c716887138d to haacked";
 	cl_git_pass(git_repository_set_head(g_repo, "refs/heads/haacked"));
-	reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
+	cl_reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
 		"e90810b8df3e80c413d903f631643c716887138d",
 		"258f0e2a959a364e40ed6603d5d44fbb24765b10",
 		NULL, msg);
@@ -120,14 +120,14 @@ void test_refs_reflog_messages__orphan_branch_does_not_count(void)
 	msg = "checkout: moving from master to e90810b8df3e80c413d903f631643c716887138d";
 	git_oid_fromstr(&id, "e90810b8df3e80c413d903f631643c716887138d");
 	cl_git_pass(git_repository_set_head_detached(g_repo, &id));
-	reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
+	cl_reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
 		"a65fedf39aefe402d3bb6e24df4d4f5fe4547750",
 		"e90810b8df3e80c413d903f631643c716887138d",
 		NULL, msg);
 
 	/* Switching to an orphan branch does not write to the reflog */
 	cl_git_pass(git_repository_set_head(g_repo, "refs/heads/orphan"));
-	reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
+	cl_reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
 		"a65fedf39aefe402d3bb6e24df4d4f5fe4547750",
 		"e90810b8df3e80c413d903f631643c716887138d",
 		NULL, msg);
@@ -135,7 +135,7 @@ void test_refs_reflog_messages__orphan_branch_does_not_count(void)
 	/* And coming back, we set the source to zero */
 	msg = "checkout: moving from orphan to haacked";
 	cl_git_pass(git_repository_set_head(g_repo, "refs/heads/haacked"));
-	reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
+	cl_reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
 		"0000000000000000000000000000000000000000",
 		"258f0e2a959a364e40ed6603d5d44fbb24765b10",
 		NULL, msg);
@@ -245,7 +245,7 @@ void test_refs_reflog_messages__show_merge_for_merge_commits(void)
 		"Merge commit", tree,
 		2, (const struct git_commit **) parent_commits));
 
-	reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
+	cl_reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
 		NULL,
 		git_oid_tostr_s(&merge_commit_oid),
 		NULL, "commit (merge): Merge commit");
@@ -291,7 +291,7 @@ void test_refs_reflog_messages__renaming_ref(void)
 	cl_git_pass(git_reference_rename(&new_ref, ref, "refs/heads/renamed", false,
 									 "message"));
 
-	reflog_check_entry(g_repo, git_reference_name(new_ref), 0,
+	cl_reflog_check_entry(g_repo, git_reference_name(new_ref), 0,
 		"a65fedf39aefe402d3bb6e24df4d4f5fe4547750",
 		"a65fedf39aefe402d3bb6e24df4d4f5fe4547750",
 		"foo@example.com", "message");
@@ -313,7 +313,7 @@ void test_refs_reflog_messages__updating_a_direct_reference(void)
 
 	cl_git_pass(git_reference_set_target(&ref_out, ref, &target_id, message));
 
-	reflog_check_entry(g_repo, "refs/heads/master", 0,
+	cl_reflog_check_entry(g_repo, "refs/heads/master", 0,
 		"a65fedf39aefe402d3bb6e24df4d4f5fe4547750",
 		"258f0e2a959a364e40ed6603d5d44fbb24765b10",
 		NULL, message);
@@ -340,7 +340,7 @@ void test_refs_reflog_messages__creating_branches_default_messages(void)
 	cl_git_pass(git_branch_create(&branch, g_repo, NEW_BRANCH_NAME, target, false));
 
 	cl_git_pass(git_buf_printf(&buf, "branch: Created from %s", git_oid_tostr_s(git_commit_id(target))));
-	reflog_check_entry(g_repo, "refs/heads/" NEW_BRANCH_NAME, 0,
+	cl_reflog_check_entry(g_repo, "refs/heads/" NEW_BRANCH_NAME, 0,
 		GIT_OID_HEX_ZERO,
 		git_oid_tostr_s(git_commit_id(target)),
 		g_email, git_buf_cstr(&buf));
@@ -352,7 +352,7 @@ void test_refs_reflog_messages__creating_branches_default_messages(void)
 	cl_git_pass(git_annotated_commit_from_revspec(&annotated, g_repo, "e90810b8df3"));
 	cl_git_pass(git_branch_create_from_annotated(&branch, g_repo, NEW_BRANCH_NAME, annotated, true));
 
-	reflog_check_entry(g_repo, "refs/heads/" NEW_BRANCH_NAME, 0,
+	cl_reflog_check_entry(g_repo, "refs/heads/" NEW_BRANCH_NAME, 0,
 		GIT_OID_HEX_ZERO,
 		git_oid_tostr_s(git_commit_id(target)),
 		g_email, "branch: Created from e90810b8df3");
@@ -371,7 +371,7 @@ void test_refs_reflog_messages__moving_branch_default_message(void)
 	git_oid_cpy(&id, git_reference_target(branch));
 	cl_git_pass(git_branch_move(&new_branch, branch, "master2", 0));
 
-	reflog_check_entry(g_repo, git_reference_name(new_branch), 0,
+	cl_reflog_check_entry(g_repo, git_reference_name(new_branch), 0,
 		"a65fedf39aefe402d3bb6e24df4d4f5fe4547750",
 		"a65fedf39aefe402d3bb6e24df4d4f5fe4547750",
 		g_email,
@@ -388,7 +388,7 @@ void test_refs_reflog_messages__detaching_head_default_message(void)
 	cl_assert_equal_i(false, git_repository_head_detached(g_repo));
 
 	cl_git_pass(git_repository_detach_head(g_repo));
-	reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
+	cl_reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
 		"a65fedf39aefe402d3bb6e24df4d4f5fe4547750",
 		"a65fedf39aefe402d3bb6e24df4d4f5fe4547750",
 		NULL, "checkout: moving from master to a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
@@ -399,7 +399,7 @@ void test_refs_reflog_messages__detaching_head_default_message(void)
 											  true, "REATTACH"));
 	git_reference_free(ref);
 
-	reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
+	cl_reflog_check_entry(g_repo, GIT_HEAD_FILE, 0,
 		"a65fedf39aefe402d3bb6e24df4d4f5fe4547750",
 		"a65fedf39aefe402d3bb6e24df4d4f5fe4547750",
 		NULL, "REATTACH");
diff --git a/tests/refs/reflog/reflog_helpers.c b/tests/refs/reflog/reflog_helpers.c
index 4f8f7cc..7a1b397 100644
--- a/tests/refs/reflog/reflog_helpers.c
+++ b/tests/refs/reflog/reflog_helpers.c
@@ -15,51 +15,89 @@ size_t reflog_entrycount(git_repository *repo, const char *name)
 	return ret;
 }
 
-void reflog_check_entry(git_repository *repo, const char *reflog, size_t idx,
+void cl_reflog_check_entry_(git_repository *repo, const char *reflog, size_t idx,
 	const char *old_spec, const char *new_spec,
-	const char *email, const char *message)
+	const char *email, const char *message, const char *file, int line)
 {
 	git_reflog *log;
 	const git_reflog_entry *entry;
+	git_buf result = GIT_BUF_INIT;
 
 	cl_git_pass(git_reflog_read(&log, repo, reflog));
 	entry = git_reflog_entry_byindex(log, idx);
+	if (entry == NULL)
+		clar__fail(file, line, "Reflog has no such entry", NULL, 1);
 
 	if (old_spec) {
 		git_object *obj = NULL;
 		if (git_revparse_single(&obj, repo, old_spec) == GIT_OK) {
-			cl_assert_equal_oid(git_object_id(obj), git_reflog_entry_id_old(entry));
+			if (git_oid_cmp(git_object_id(obj), git_reflog_entry_id_old(entry)) != 0) {
+				git_oid__writebuf(&result, "\tOld OID: \"", git_object_id(obj));
+				git_oid__writebuf(&result, "\" != \"", git_reflog_entry_id_old(entry));
+				git_buf_puts(&result, "\"\n");
+			}
 			git_object_free(obj);
 		} else {
 			git_oid *oid = git__calloc(1, sizeof(*oid));
 			git_oid_fromstr(oid, old_spec);
-			cl_assert_equal_oid(oid, git_reflog_entry_id_old(entry));
+			if (git_oid_cmp(oid, git_reflog_entry_id_old(entry)) != 0) {
+				git_oid__writebuf(&result, "\tOld OID: \"", oid);
+				git_oid__writebuf(&result, "\" != \"", git_reflog_entry_id_old(entry));
+				git_buf_puts(&result, "\"\n");
+			}
 			git__free(oid);
 		}
 	}
 	if (new_spec) {
 		git_object *obj = NULL;
 		if (git_revparse_single(&obj, repo, new_spec) == GIT_OK) {
-			cl_assert_equal_oid(git_object_id(obj), git_reflog_entry_id_new(entry));
+			if (git_oid_cmp(git_object_id(obj), git_reflog_entry_id_new(entry)) != 0) {
+				git_oid__writebuf(&result, "\tNew OID: \"", git_object_id(obj));
+				git_oid__writebuf(&result, "\" != \"", git_reflog_entry_id_new(entry));
+				git_buf_puts(&result, "\"\n");
+			}
 			git_object_free(obj);
 		} else {
 			git_oid *oid = git__calloc(1, sizeof(*oid));
 			git_oid_fromstr(oid, new_spec);
-			cl_assert_equal_oid(oid, git_reflog_entry_id_new(entry));
+			if (git_oid_cmp(oid, git_reflog_entry_id_new(entry)) != 0) {
+				git_oid__writebuf(&result, "\tNew OID: \"", oid);
+				git_oid__writebuf(&result, "\" != \"", git_reflog_entry_id_new(entry));
+				git_buf_puts(&result, "\"\n");
+			}
 			git__free(oid);
 		}
 	}
 
-	if (email) {
-		cl_assert_equal_s(email, git_reflog_entry_committer(entry)->email);
-	}
+	if (email && strcmp(email, git_reflog_entry_committer(entry)->email) != 0)
+		git_buf_printf(&result, "\tEmail: \"%s\" != \"%s\"\n", email, git_reflog_entry_committer(entry)->email);
+
 	if (message) {
-		cl_assert_equal_s(message, git_reflog_entry_message(entry));
+		const char *entry_msg = git_reflog_entry_message(entry);
+		if (entry_msg == NULL) entry_msg = "";
+
+		if (entry_msg && strcmp(message, entry_msg) != 0)
+			git_buf_printf(&result, "\tMessage: \"%s\" != \"%s\"\n", message, entry_msg);
 	}
+	if (git_buf_len(&result) != 0)
+		clar__fail(file, line, "Reflog entry mismatch", git_buf_cstr(&result), 1);
 
+	git_buf_free(&result);
 	git_reflog_free(log);
 }
 
+static int reflog_entry_tostr(git_buf *out, const git_reflog_entry *entry)
+{
+	char old_oid[GIT_OID_HEXSZ], new_oid[GIT_OID_HEXSZ];
+
+	assert(out && entry);
+
+	git_oid_tostr((char *)&old_oid, GIT_OID_HEXSZ, git_reflog_entry_id_old(entry));
+	git_oid_tostr((char *)&new_oid, GIT_OID_HEXSZ, git_reflog_entry_id_new(entry));
+
+	return git_buf_printf(out, "%s %s %s %s", old_oid, new_oid, "somesig", git_reflog_entry_message(entry));
+}
+
 void reflog_print(git_repository *repo, const char *reflog_name)
 {
 	git_reflog *reflog;
@@ -70,12 +108,8 @@ void reflog_print(git_repository *repo, const char *reflog_name)
 
 	for (idx = 0; idx < git_reflog_entrycount(reflog); idx++) {
 		const git_reflog_entry *entry = git_reflog_entry_byindex(reflog, idx);
-		char old_oid[GIT_OID_HEXSZ], new_oid[GIT_OID_HEXSZ];;
-
-		git_oid_tostr((char *)&old_oid, GIT_OID_HEXSZ, git_reflog_entry_id_old(entry));
-		git_oid_tostr((char *)&new_oid, GIT_OID_HEXSZ, git_reflog_entry_id_new(entry));
-
-		git_buf_printf(&out, "%ld: %s %s %s %s\n", idx, old_oid, new_oid, "somesig", git_reflog_entry_message(entry));
+		reflog_entry_tostr(&out, entry);
+		git_buf_putc(&out, '\n');
 	}
 
 	fprintf(stderr, "%s", git_buf_cstr(&out));
diff --git a/tests/refs/reflog/reflog_helpers.h b/tests/refs/reflog/reflog_helpers.h
index fa343c6..80814ea 100644
--- a/tests/refs/reflog/reflog_helpers.h
+++ b/tests/refs/reflog/reflog_helpers.h
@@ -1,6 +1,10 @@
 size_t reflog_entrycount(git_repository *repo, const char *name);
-void reflog_check_entry(git_repository *repo, const char *reflog, size_t idx,
+
+#define cl_reflog_check_entry(repo, reflog, idx, old_spec, new_spec, email, message) \
+    cl_reflog_check_entry_(repo, reflog, idx, old_spec, new_spec, email, message, __FILE__, __LINE__)
+
+void cl_reflog_check_entry_(git_repository *repo, const char *reflog, size_t idx,
 						const char *old_spec, const char *new_spec,
-						const char *email, const char *message);
+						const char *email, const char *message, const char *file, int line);
 
 void reflog_print(git_repository *repo, const char *reflog_name);