From 7b4d3c62b97b2f78073dca426065356c9a8d4634 Mon Sep 17 00:00:00 2001
From: Eryn Wells <eryn@erynwells.me>
Date: Mon, 26 Dec 2016 11:37:45 -0700
Subject: [PATCH] Check single character identifiers: +, -

---
 src/lexer/mod.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/lexer/mod.rs b/src/lexer/mod.rs
index 56173c8..7907e86 100644
--- a/src/lexer/mod.rs
+++ b/src/lexer/mod.rs
@@ -234,6 +234,8 @@ mod tests {
     #[test]
     fn lexer_finds_identifiers() {
         check_single_token("abc", Token::Identifier(String::from("abc")));
+        check_single_token("+", Token::Identifier(String::from("+")));
+        check_single_token("-", Token::Identifier(String::from("-")));
     }
 
     #[test]