headers MAINTENANCE headers/include cleanup
- add missing extern "C" in some of the public headers for use in C++
- includes cleanup and fix ordering
diff --git a/tests/utests/schema/test_schema.c b/tests/utests/schema/test_schema.c
index b330a7d..559b193 100644
--- a/tests/utests/schema/test_schema.c
+++ b/tests/utests/schema/test_schema.c
@@ -18,11 +18,14 @@
#include <setjmp.h>
#include <cmocka.h>
+#include <string.h>
+
#include "../../../src/common.h"
#include "../../../src/context.h"
+#include "../../../src/log.h"
+#include "../../../src/parser_yin.h"
#include "../../../src/tree_schema.h"
#include "../../../src/tree_schema_internal.h"
-#include "../../../src/parser_yin.h"
#include "../../../src/xml.h"