From 9a3035049a1f0b9e44ac17258797a9eb1711412a Mon Sep 17 00:00:00 2001
From: ConnorSkees <39542938+ConnorSkees@users.noreply.github.com>
Date: Tue, 19 May 2020 00:21:43 -0400
Subject: [PATCH] error tests for to-{upper,lower}-case

---
 tests/strings.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tests/strings.rs b/tests/strings.rs
index cf29d5c..9cdccb6 100644
--- a/tests/strings.rs
+++ b/tests/strings.rs
@@ -13,6 +13,16 @@ test!(
     "a {\n  color: to-lower-case(AbC123);\n}\n",
     "a {\n  color: abc123;\n}\n"
 );
+error!(
+    uppercase_non_ident,
+    "a {\n  color: to-upper-case(123);\n}\n",
+    "Error: $string: 123 is not a string."
+);
+error!(
+    lowercase_non_ident,
+    "a {\n  color: to-lower-case(123);\n}\n",
+    "Error: $string: 123 is not a string."
+);
 test!(
     uppercase_named_arg,
     "a {\n  color: to-upper-case($string: aBc123);\n}\n",