From 27798ee575a975a1806ced86aca8aea407897851 Mon Sep 17 00:00:00 2001
From: Tim <tim@glacyr.com>
Date: Tue, 6 Oct 2020 22:11:18 +0200
Subject: [PATCH] Added unit test for negative number literals in macros.

---
 crates/mbe/src/subtree_source.rs | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/crates/mbe/src/subtree_source.rs b/crates/mbe/src/subtree_source.rs
index 8941da0f1c7..226dc3bec82 100644
--- a/crates/mbe/src/subtree_source.rs
+++ b/crates/mbe/src/subtree_source.rs
@@ -202,3 +202,24 @@ fn convert_leaf(leaf: &tt::Leaf) -> TtToken {
         tt::Leaf::Punct(punct) => convert_punct(*punct),
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::{convert_literal, TtToken};
+    use syntax::{SmolStr, SyntaxKind};
+
+    #[test]
+    fn test_negative_literal() {
+        assert_eq!(
+            convert_literal(&tt::Literal {
+                id: tt::TokenId::unspecified(),
+                text: SmolStr::new("-42.0")
+            }),
+            TtToken {
+                kind: SyntaxKind::FLOAT_NUMBER,
+                is_joint_to_next: false,
+                text: SmolStr::new("-42.0")
+            }
+        );
+    }
+}