diff --git a/omaha_utils_unittest.cc b/omaha_utils_unittest.cc
index 8ceb76b..59c0366 100644
--- a/omaha_utils_unittest.cc
+++ b/omaha_utils_unittest.cc
@@ -39,4 +39,12 @@
   EXPECT_EQ(EolStatus::kSupported, StringToEolStatus("hello, world!"));
 }
 
+TEST(OmahaUtilsTest, MilestonesToEolTest) {
+  EXPECT_EQ(kMilestonesToEolNone, StringToMilestonesToEol(""));
+  EXPECT_EQ(kMilestonesToEolNone, StringToMilestonesToEol("not_a_number"));
+  EXPECT_EQ(1, StringToMilestonesToEol("1"));
+  EXPECT_EQ(0, StringToMilestonesToEol("0"));
+  EXPECT_EQ(-1, StringToMilestonesToEol("-1"));
+}
+
 }  // namespace chromeos_update_engine