From fe1b1dd7d9edde081c4c95facc19e801863beaff Mon Sep 17 00:00:00 2001
From: Phil Ellison <phil.j.ellison@gmail.com>
Date: Sun, 28 Jul 2019 19:52:30 +0100
Subject: More direct failing test

---
 crates/ra_syntax/src/parsing/lexer.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/crates/ra_syntax/src/parsing/lexer.rs b/crates/ra_syntax/src/parsing/lexer.rs
index 2a4343b0a..f75e321c3 100644
--- a/crates/ra_syntax/src/parsing/lexer.rs
+++ b/crates/ra_syntax/src/parsing/lexer.rs
@@ -145,3 +145,16 @@ pub fn classify_literal(text: &str) -> Option<Token> {
     };
     Some(Token { kind, len: TextUnit::from_usize(t.len) })
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn lex_float_literal() {
+        assert_eq!(
+            tokenize("42f64")[0],
+            Token { kind: FLOAT_NUMBER, len: TextUnit::from_usize(5)}
+        );
+    }
+}
\ No newline at end of file
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