diff --git a/test/common/endian.h b/test/common/endian.h
new file mode 100644
index 000000000000..cba7618c430e
--- /dev/null
+++ b/test/common/endian.h
@@ -0,0 +1,36 @@
+#include <cxxtest/TestSuite.h>
+#include "common/endian.h"
+
+class EndianTestSuite : public CxxTest::TestSuite
+{
+	public:
+	void test_MKTAG() {
+		const char *str_tag = "ABCD";
+		uint32 tag = READ_BE_UINT32(str_tag);
+		TS_ASSERT_EQUALS(MKTAG('A','B','C','D'), tag);
+	}
+
+	void test_READ_BE_UINT32() {
+		const char data[4] = { 0x12, 0x34, 0x56, 0x78 };
+		uint32 value = READ_BE_UINT32(data);
+		TS_ASSERT_EQUALS(value, 0x12345678UL);
+	}
+
+	void test_READ_LE_UINT32() {
+		const char data[4] = { 0x12, 0x34, 0x56, 0x78 };
+		uint32 value = READ_LE_UINT32(data);
+		TS_ASSERT_EQUALS(value, 0x78563412UL);
+	}
+
+	void test_READ_BE_UINT16() {
+		const char data[4] = { 0x12, 0x34, 0x56, 0x78 };
+		uint32 value = READ_BE_UINT16(data);
+		TS_ASSERT_EQUALS(value, 0x1234UL);
+	}
+
+	void test_READ_LE_UINT16() {
+		const char data[4] = { 0x12, 0x34, 0x56, 0x78 };
+		uint32 value = READ_LE_UINT16(data);
+		TS_ASSERT_EQUALS(value, 0x3412UL);
+	}
+};