1 files changed, 40 insertions, 0 deletions
diff --git a/tests/libntp/atouint.cpp b/tests/libntp/atouint.cpp
new file mode 100644
index 000000000000..cc8cc394b840
--- /dev/null
+++ b/tests/libntp/atouint.cpp
@@ -0,0 +1,40 @@
+#include "libntptest.h"
+
+class atouintTest : public libntptest {
+};
+
+TEST_F(atouintTest, RegularPositive) {
+	const char *str = "305";
+	u_long actual;
+
+	ASSERT_TRUE(atouint(str, &actual));
+	EXPECT_EQ(305, actual);
+}
+
+TEST_F(atouintTest, PositiveOverflowBoundary) {
+	const char *str = "4294967296";
+	u_long actual;
+
+	ASSERT_FALSE(atouint(str, &actual));
+}
+
+TEST_F(atouintTest, PositiveOverflowBig) {
+	const char *str = "8000000000";
+	u_long actual;
+
+	ASSERT_FALSE(atouint(str, &actual));
+}
+
+TEST_F(atouintTest, Negative) {
+	const char *str = "-1";
+	u_long actual;
+
+	ASSERT_FALSE(atouint(str, &actual));
+}
+
+TEST_F(atouintTest, IllegalChar) {
+	const char *str = "50c3";
+	u_long actual;
+
+	ASSERT_FALSE(atouint(str, &actual));
+}