io: move io helpers back into `tokio-io` (#1377)

Utilities are made optional with a feature flag.

1 files changed, 0 insertions, 40 deletions

diff --git a/tokio/tests/io_read_to_end.rs b/tokio/tests/io_read_to_end.rs
deleted file mode 100644
index ac089625..00000000
--- a/tokio/tests/io_read_to_end.rs
+++ /dev/null
@@ -1,40 +0,0 @@
-#![deny(warnings, rust_2018_idioms)]
-#![feature(async_await)]
-
-use tokio::io::{AsyncRead, AsyncReadExt};
-use tokio_test::assert_ok;
-
-use std::pin::Pin;
-use std::task::{Context, Poll};
-use std::{cmp, io};
-
-#[tokio::test]
-async fn read_to_end() {
-    struct Rd {
-        val: &'static [u8],
-    }
-
-    impl AsyncRead for Rd {
-        fn poll_read(
-            mut self: Pin<&mut Self>,
-            _cx: &mut Context<'_>,
-            buf: &mut [u8],
-        ) -> Poll<io::Result<usize>> {
-            let me = &mut *self;
-            let len = cmp::min(buf.len(), me.val.len());
-
-            buf[..len].copy_from_slice(&me.val[..len]);
-            me.val = &me.val[len..];
-            Poll::Ready(Ok(len))
-        }
-    }
-
-    let mut buf = vec![];
-    let mut rd = Rd {
-        val: b"hello world",
-    };
-
-    let n = assert_ok!(rd.read_to_end(&mut buf).await);
-    assert_eq!(n, 11);
-    assert_eq!(buf[..], b"hello world"[..]);
-}