reset streams when receiving invalid psuedo headers

tests/support/frames.rs

@@ -136,6 +136,12 @@ impl Mock<frame::Headers> {
     }
 }
 
+impl From<Mock<frame::Headers>> for frame::Headers {
+    fn from(src: Mock<frame::Headers>) -> Self {
+        src.0
+    }
+}
+
 impl From<Mock<frame::Headers>> for SendFrame {
     fn from(src: Mock<frame::Headers>) -> Self {
         Frame::Headers(src.0)
@@ -234,6 +240,11 @@ impl From<Mock<frame::GoAway>> for SendFrame {
 // ==== Reset helpers
 
 impl Mock<frame::Reset> {
+    pub fn protocol_error(self) -> Self {
+        let id = self.0.stream_id();
+        Mock(frame::Reset::new(id, frame::Reason::ProtocolError))
+    }
+
     pub fn flow_control(self) -> Self {
         let id = self.0.stream_id();
         Mock(frame::Reset::new(id, frame::Reason::FlowControlError))

tests/support/mod.rs

@@ -12,6 +12,7 @@ pub extern crate futures;
 pub extern crate h2;
 pub extern crate http;
 pub extern crate mock_io;
+pub extern crate string;
 pub extern crate tokio_io;
 
 // Kind of annoying, but we can't use macros from crates that aren't specified

tests/support/util.rs

@@ -1,8 +1,13 @@
 use h2::client;
 
+use super::string::{String, TryFrom};
 use bytes::Bytes;
 use futures::{Async, Future, Poll};
 
+pub fn byte_str(s: &str) -> String<Bytes> {
+    String::try_from(Bytes::from(s)).unwrap()
+}
+
 pub fn wait_for_capacity(stream: client::Stream<Bytes>, target: usize) -> WaitForCapacity {
     WaitForCapacity {
         stream: Some(stream),