Freeze tests

src/state/freeze.rs

@@ -157,6 +157,7 @@ impl FreezeMetadata
     }
 }
 
+/// An immutable `State` image
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct Freeze
 {
@@ -189,7 +190,7 @@ impl Freeze
 		.with_section(|| format!("{:?}", unchecked_meta).header("Metadata was"))?;
 	    
 	    tokio::task::spawn_blocking(move || {
-		if unchecked_meta.verify_hash_blocking(&body) {
+		if !unchecked_meta.verify_hash_blocking(&body) {
 		    Err(eyre!("Failed to verify metadata hash"))
 		} else {
 		    serde_cbor::from_slice(&body)
@@ -353,3 +354,35 @@ impl From<Freeze> for State
 	from.into_state()
     }
 }
+
+#[cfg(test)]
+mod tests
+{
+    #[tokio::test]
+    async fn read_write()
+    {
+	let mut buffer = Vec::new();
+	let state = super::State::new();
+	let freeze = state.freeze().await;
+
+	freeze.write_async(&mut buffer).await.unwrap();
+	let freeze2 = super::Freeze::read_async(&mut &buffer[..]).await.unwrap();
+	assert_eq!(freeze, freeze2);
+
+	let mut buffer2 = Vec::new();
+	freeze2.into_write_async(&mut buffer2).await.unwrap();
+	assert_eq!(buffer, buffer2);
+	
+    }
+    #[tokio::test]
+    async fn creation()
+    {
+	let state = super::State::new();
+	let freeze = state.freeze().await;
+	let state2 = freeze.unfreeze();
+	let freeze2 = state2.freeze().await;
+	assert_eq!(freeze, freeze2);
+	let _state3 = freeze2.into_state();
+    }
+    
+}