From 49b73ed2703a044e54e00b8a76f9b1f0bb0933dd Mon Sep 17 00:00:00 2001
From: Jacob Rothstein <hi@jbr.me>
Date: Sun, 6 Sep 2020 17:30:05 -0700
Subject: [PATCH 1/2] impl Display for Version

---
 src/version.rs | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/src/version.rs b/src/version.rs
index 04103079..ff38d8b2 100644
--- a/src/version.rs
+++ b/src/version.rs
@@ -18,9 +18,34 @@ pub enum Version {
     Http3_0,
 }
 
+impl std::fmt::Display for Version {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_str(match self {
+            Version::Http0_9 => "HTTP/0.9",
+            Version::Http1_0 => "HTTP/1.0",
+            Version::Http1_1 => "HTTP/1.1",
+            Version::Http2_0 => "HTTP/2.0",
+            Version::Http3_0 => "HTTP/3.0",
+        })
+    }
+}
+
 #[cfg(test)]
 mod test {
     use super::*;
+    #[test]
+    fn to_string() {
+        let output = format!(
+            "{} {} {} {} {}",
+            Version::Http0_9,
+            Version::Http1_0,
+            Version::Http1_1,
+            Version::Http2_0,
+            Version::Http3_0
+        );
+        assert_eq!("HTTP/0.9 HTTP/1.0 HTTP/1.1 HTTP/2.0 HTTP/3.0", output);
+    }
+
     #[test]
     fn ord() {
         use Version::*;

From 5e83e2e04a28b82afc595f9d90ae8e00cd9f654b Mon Sep 17 00:00:00 2001
From: Jacob Rothstein <hi@jbr.me>
Date: Mon, 7 Sep 2020 10:38:30 -0700
Subject: [PATCH 2/2] no .0 for 2 and 3

---
 src/version.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/version.rs b/src/version.rs
index ff38d8b2..2616384b 100644
--- a/src/version.rs
+++ b/src/version.rs
@@ -24,8 +24,8 @@ impl std::fmt::Display for Version {
             Version::Http0_9 => "HTTP/0.9",
             Version::Http1_0 => "HTTP/1.0",
             Version::Http1_1 => "HTTP/1.1",
-            Version::Http2_0 => "HTTP/2.0",
-            Version::Http3_0 => "HTTP/3.0",
+            Version::Http2_0 => "HTTP/2",
+            Version::Http3_0 => "HTTP/3",
         })
     }
 }
@@ -43,7 +43,7 @@ mod test {
             Version::Http2_0,
             Version::Http3_0
         );
-        assert_eq!("HTTP/0.9 HTTP/1.0 HTTP/1.1 HTTP/2.0 HTTP/3.0", output);
+        assert_eq!("HTTP/0.9 HTTP/1.0 HTTP/1.1 HTTP/2 HTTP/3", output);
     }
 
     #[test]