Expose an encoding bug in Verifier

src/argon2.rs

@@ -69,6 +69,7 @@ fn h0(lanes: u32, hash_length: u32, memory_kib: u32, passes: u32, version: u32,
 
 /// Main entry point for running Argon2 on customized parameters (cf. note for
 /// `Argon2::new`).
+#[derive(Debug, Eq, PartialEq)]
 pub struct Argon2 {
     passes: u32,
     lanes: u32,

src/verifier.rs

@@ -203,6 +203,7 @@ impl Error for DecodeError {
 
 /// Represents a single Argon2 hashing session. A hash session comprises of the
 /// hash algorithm parameters, salt, key, and data used to hash a given input.
+#[derive(Debug, Eq, PartialEq)]
 pub struct Encoded {
     params: Argon2,
     hash: Vec<u8>,
@@ -438,6 +439,16 @@ mod test {
         }
     }
 
+    #[test]
+    fn encode_decode() {
+        for &(s, _) in BASE64_CASES.iter() {
+            let salt = b"Yum!  Extra salty";
+            let key  = b"ff5dfa4d7a048f9db4ad0caad82e75c";
+            let enc = Encoded::default2i(s, salt, key, &[]);
+            assert_eq!(Encoded::from_u8(&enc.to_u8()), Ok(enc));
+        }
+    }
+
     #[test]
     fn bad_encoded() {
         use super::DecodeError::*;

travis.sh

@@ -1,3 +1,5 @@
+#!/bin/sh
+set -e
 cargo build
 cargo test