test(rpcserver): Tests asserting rpc requests and results parsing and behavior.

Author: jaoleal

crates/floresta-node/src/json_rpc/server.rs

@@ -269,7 +269,10 @@ async fn handle_json_rpc_request(
     }
 
     // Methods that require params
-    let params = params.ok_or(JsonRpcError::MissingParameter("params".into()))?;
+    //
+    // We default here because theres some cases we have only optionals for a call, so even if omitted, is
+    // nice for params to be Some(Value) even if this value is Null.
+    let params = params.unwrap_or_default();
 
     match method.as_str() {
         "getblock" => {