test poolable against s3

src/test/range.rs

@@ -17,3 +17,38 @@ fn read_range() {
         [0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 3, 232, 0, 0, 0, 1]
     )
 }
+
+#[test]
+fn agent_pool() {
+    let agent = agent().build();
+
+    // req 1
+    let resp = agent.get("https://s3.amazonaws.com/foosrvr/bbb.mp4")
+        .set("Range", "bytes=1000-1999")
+        .call();
+    assert_eq!(*resp.status(), 206);
+    let mut reader = resp.into_reader();
+    let mut buf = vec![];
+    // reading the entire content will return the connection to the pool
+    let len = reader.read_to_end(&mut buf).unwrap();
+    assert_eq!(len, 1000);
+
+    {
+        let mut lock = agent.state().lock().unwrap();
+        let state = lock.as_mut().unwrap();
+        let pool = state.pool();
+        assert_eq!(pool.len(), 1);
+        let foo = format!("{:?}", pool.get("s3.amazonaws.com", 443));
+        assert_eq!(foo, "Some(Stream[https])"); // not a great way of testing.
+    }
+
+    // req 2 should be done with a reused connection
+    let resp = agent.get("https://s3.amazonaws.com/foosrvr/bbb.mp4")
+        .set("Range", "bytes=5000-6999")
+        .call();
+    assert_eq!(*resp.status(), 206);
+    let mut reader = resp.into_reader();
+    let mut buf = vec![];
+    let len = reader.read_to_end(&mut buf).unwrap();
+    assert_eq!(len, 2000);
+}