add new run-pass test weird_field_pos

pnet_macros/tests/run-pass/weird_field_pos.rs

@@ -0,0 +1,40 @@
+// Copyright (c) 2015 Robert Clipsham <robert@octarineparrot.com>
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+extern crate pnet_macros;
+extern crate pnet_macros_support;
+use pnet_macros::packet;
+use pnet_macros_support::types::*;
+
+#[packet]
+pub struct Test {
+    banana: u2,
+    apple: u4,
+    potato: u6,
+    the_rest: u20be,
+    #[payload]
+    payload: Vec<u8>,
+}
+
+fn main() {
+    let test = Test {
+        banana: 0b10,
+        apple: 0b1010,
+        potato: 0b101010,
+        the_rest: 0b10101010101010101010,
+        payload: vec![],
+    };
+
+    let mut buf = vec![0; TestPacket::packet_size(&test)];
+    let mut packet = MutableTestPacket::new(&mut buf).unwrap();
+    packet.populate(&test);
+    assert_eq!(packet.get_banana(), test.banana);
+    assert_eq!(packet.get_apple(), test.apple);
+    assert_eq!(packet.get_potato(), test.potato);
+    assert_eq!(packet.get_the_rest(), test.the_rest);
+}