diff --git a/actix-codec/src/framed_read.rs b/actix-codec/src/framed_read.rs
index e4dc206e..5d8d5ee8 100644
--- a/actix-codec/src/framed_read.rs
+++ b/actix-codec/src/framed_read.rs
@@ -231,15 +231,16 @@ where
             // got room for at least one byte to read to ensure that we don't
             // get a spurious 0 that looks like EOF
             this.buffer.reserve(1);
-            unsafe {
-                match Pin::new_unchecked(&mut this.inner).poll_read(cx, &mut this.buffer) {
+            let cnt = unsafe {
+                match Pin::new_unchecked(&mut this.inner).poll_read_buf(cx, &mut this.buffer) {
                     Poll::Pending => return Poll::Pending,
                     Poll::Ready(Err(e)) => return Poll::Ready(Some(Err(e.into()))),
-                    Poll::Ready(Ok(0)) => {
-                        this.eof = true;
-                    }
-                    Poll::Ready(Ok(_cnt)) => {}
+                    Poll::Ready(Ok(cnt)) => cnt,
                 }
+            };
+
+            if cnt == 0 {
+                this.eof = true;
             }
             this.is_readable = true;
         }
diff --git a/actix-testing/src/rt.rs b/actix-testing/src/rt.rs
index 8a135a66..163a8c34 100644
--- a/actix-testing/src/rt.rs
+++ b/actix-testing/src/rt.rs
@@ -54,12 +54,16 @@ where
 ///
 /// Note that this function is intended to be used only for testing purpose.
 /// This function panics on nested call.
-pub fn block_fn<F, R>(f: F) -> F::Output
+pub fn block_fn<F, R>(f: F) -> R::Output
 where
     F: FnOnce() -> R,
     R: Future,
 {
-    RT.with(move |rt| rt.borrow_mut().get_mut().block_on(lazy(|_| f())))
+    RT.with(move |rt| {
+        let mut rt = rt.borrow_mut();
+        let fut = rt.get_mut().block_on(lazy(|_| f()));
+        rt.get_mut().block_on(fut)
+    })
 }
 
 /// Spawn future to the current test runtime.