use unreachable instead of panic

src/ws/frame.rs

@@ -364,7 +364,7 @@ mod tests {
     fn extract(frm: Poll<Option<Frame>, ProtocolError>) -> Frame {
         match frm {
             Ok(Async::Ready(Some(frame))) => frame,
-            _ => panic!("error"),
+            _ => unreachable!("error"),
         }
     }
 
@@ -468,7 +468,7 @@ mod tests {
 
         if let Err(ProtocolError::Overflow) = Frame::parse(&mut buf, false, 0) {
         } else {
-            panic!("error");
+            unreachable!("error");
         }
     }
 

src/ws/proto.rs

@@ -210,7 +210,7 @@ mod test {
         ($from:expr => $opcode:pat) => {
             match OpCode::from($from) {
                 e @ $opcode => (),
-                e => panic!("{:?}", e)
+                e => unreachable!("{:?}", e)
             }
         }
     }
@@ -220,7 +220,7 @@ mod test {
             let res: u8 = $from.into();
             match res {
                 e @ $opcode => (),
-                e => panic!("{:?}", e)
+                e => unreachable!("{:?}", e)
             }
         }
     }