Add test coverage for Utils

Author: joshknopp

apollo-core/src/test/java/com/ctrip/framework/foundation/internals/UtilsTest.java

@@ -8,6 +8,9 @@
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
+/**
+ * @author Josh Knopp(https://github.com/joshknopp)
+ */
 class UtilsTest {
     @Nested
     class IsBlank {