1 files changed, 52 insertions, 0 deletions
diff --git a/tests/libntp/refnumtoa.cpp b/tests/libntp/refnumtoa.cpp
new file mode 100644
index 000000000000..75460c0b52ba
--- /dev/null
+++ b/tests/libntp/refnumtoa.cpp
@@ -0,0 +1,52 @@
+#include "libntptest.h"
+
+#include "ntp_net.h"
+#include "ntp_refclock.h"
+
+#include <sstream>
+
+class refnumtoaTest : public libntptest {
+protected:
+	/* Might need to be updated if a new refclock gets this id. */
+	static const int UNUSED_REFCLOCK_ID = 250;
+};
+
+#ifdef REFCLOCK		/* clockname() is useless otherwise */
+TEST_F(refnumtoaTest, LocalClock) {
+	/* We test with a refclock address of type LOCALCLOCK.
+	 * with id 8
+	 */
+	u_int32 addr = REFCLOCK_ADDR;
+	addr |= REFCLK_LOCALCLOCK << 8;
+	addr |= 0x8;
+
+	sockaddr_u address;
+	address.sa4.sin_family = AF_INET;
+	address.sa4.sin_addr.s_addr = htonl(addr);
+
+	std::ostringstream expected;
+	expected << clockname(REFCLK_LOCALCLOCK)
+			 << "(8)";
+
+	EXPECT_STREQ(expected.str().c_str(), refnumtoa(&address));
+}
+#endif	/* REFCLOCK */
+
+#ifdef REFCLOCK		/* refnumtoa() is useless otherwise */
+TEST_F(refnumtoaTest, UnknownId) {
+	/* We test with a currently unused refclock ID */
+	u_int32 addr = REFCLOCK_ADDR;
+	addr |= UNUSED_REFCLOCK_ID << 8;
+	addr |= 0x4;
+
+	sockaddr_u address;
+	address.sa4.sin_family = AF_INET;
+	address.sa4.sin_addr.s_addr = htonl(addr);
+
+	std::ostringstream expected;
+	expected << "REFCLK(" << UNUSED_REFCLOCK_ID
+			 << ",4)";
+
+	EXPECT_STREQ(expected.str().c_str(), refnumtoa(&address));
+}
+#endif	/* REFCLOCK */