Add const_assert_eq to PACKET_DATA_SIZE (#26227)

Cargo.lock

@@ -5954,6 +5954,7 @@ dependencies = [
  "solana-logger 1.11.2",
  "solana-program 1.11.2",
  "solana-sdk-macro 1.11.2",
+ "static_assertions",
  "thiserror",
  "tiny-bip39",
  "uriparse",

sdk/Cargo.toml

@@ -86,6 +86,7 @@ js-sys = "0.3.57"
 [dev-dependencies]
 anyhow = "1.0.57"
 curve25519-dalek = "3.2.1"
+static_assertions = "1.1.0"
 tiny-bip39 = "0.8.2"
 
 [build-dependencies]

sdk/src/packet.rs

@@ -9,6 +9,8 @@ use {
     },
 };
 
+#[cfg(test)]
+static_assertions::const_assert_eq!(PACKET_DATA_SIZE, 1232);
 /// Maximum over-the-wire size of a Transaction
 ///   1280 is IPv6 minimum MTU
 ///   40 bytes is the size of the IPv6 header