First round of snapshot tests for patch_compute

src/snapshot/patch.rs

@@ -3,6 +3,7 @@
 use std::collections::HashMap;
 
 use rbx_dom_weak::{RbxId, RbxValue};
+use serde::{Deserialize, Serialize};
 
 use super::{InstanceMetadata, InstanceSnapshot};
 
@@ -11,7 +12,7 @@ use super::{InstanceMetadata, InstanceSnapshot};
 /// These patches shouldn't be persisted: there's no mechanism in place to make
 /// sure that another patch wasn't applied before this one that could cause a
 /// conflict!
-#[derive(Debug, Default, Clone, PartialEq)]
+#[derive(Debug, Default, Clone, PartialEq, Serialize, Deserialize)]
 pub struct PatchSet<'a> {
     pub removed_instances: Vec<RbxId>,
     pub added_instances: Vec<PatchAdd<'a>>,
@@ -29,14 +30,14 @@ impl<'a> PatchSet<'a> {
 }
 
 /// A patch containing an instance that was added to the tree.
-#[derive(Debug, Clone, PartialEq)]
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
 pub struct PatchAdd<'a> {
     pub parent_id: RbxId,
     pub instance: InstanceSnapshot<'a>,
 }
 
 /// A patch indicating that properties of an instance changed.
-#[derive(Debug, Clone, PartialEq)]
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
 pub struct PatchUpdate {
     pub id: RbxId,
     pub changed_name: Option<String>,