1 files changed, 8 insertions, 0 deletions
diff --git a/src/router/mod.rs b/src/router/mod.rs
index c1ecf1c..0e4bce1 100644
--- a/src/router/mod.rs
+++ b/src/router/mod.rs
@@ -5,5 +5,13 @@ mod peer;
 mod types;
 mod workers;
 
+#[cfg(test)]
+mod tests;
+
+use messages::TransportHeader;
+use std::mem;
+
+pub const SIZE_MESSAGE_PREFIX: usize = mem::size_of::<TransportHeader>();
+
 pub use device::Device;
 pub use peer::Peer;