Ensure that float literal is always formatted as floating point
diff --git a/tests/test.rs b/tests/test.rs
index 89f7b10..19f7b27 100644
--- a/tests/test.rs
+++ b/tests/test.rs
@@ -19,6 +19,7 @@
 fn literals() {
     assert_eq!(Literal::string("foo").to_string(), "\"foo\"");
     assert_eq!(Literal::string("\"").to_string(), "\"\\\"\"");
+    assert_eq!(Literal::float(10.0).to_string(), "10.0");
 }
 
 #[test]