From 990f0004e5eca3dc5f151534f8c53d7070e74df1 Mon Sep 17 00:00:00 2001
From: Sarah Jamie Lewis <sarah@openprivacy.ca>
Date: Thu, 4 Feb 2021 09:36:34 -0800
Subject: [PATCH] Explcit compress/decompress test

---
 src/lib.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index 1af3f56..e7bca4f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -130,6 +130,7 @@ impl FuzzyTag {
     ///    let tag = public_key.generate_tag();
     ///    let compressed_tag = tag.compress();
     ///    let decompressed_tag = FuzzyTag::decompress(&compressed_tag).unwrap();
+    ///    assert_eq!(tag, decompressed_tag);
     /// ```
     pub fn decompress(bytes: &Vec<u8>) -> Option<FuzzyTag> {
         if bytes.len() > 64 {
@@ -480,6 +481,20 @@ mod tests {
     use curve25519_dalek::ristretto::RistrettoPoint;
     use curve25519_dalek::scalar::Scalar;
 
+    #[test]
+    fn test_compression() {
+        let gamma = 24;
+        let secret_key = FuzzySecretKey::generate(gamma);
+        let public_key = secret_key.public_key();
+
+        // Give public key to a another party...
+        // and then they can do...
+        let tag = public_key.generate_tag();
+        let compressed_tag = tag.compress();
+        let decompressed_tag = FuzzyTag::decompress(&compressed_tag).unwrap();
+        assert_eq!(tag, decompressed_tag);
+    }
+
     #[test]
     fn test_serialization() {
         // We support up to gamma=64 when deserializing..