Move patch apply test utility into tree_view module

Cargo.lock

@@ -1470,6 +1470,7 @@ dependencies = [
  "rojo-insta-ext 0.1.0",
  "serde 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_yaml 0.8.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "termcolor 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "uuid 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)",

Cargo.toml

@@ -72,6 +72,7 @@ rojo-insta-ext = { path = "rojo-insta-ext" }
 lazy_static = "1.2"
 paste = "0.1"
 pretty_assertions = "0.6.1"
+serde_yaml = "0.8.9"
 tempfile = "3.0"
 walkdir = "2.1"
 

src/lib.rs

@@ -12,6 +12,9 @@ pub mod commands;
 #[doc(hidden)]
 pub mod project;
 
+#[cfg(test)]
+mod tree_view;
+
 mod auth_cookie;
 mod change_processor;
 mod imfs;

src/snapshot/tests/apply.rs

@@ -1,14 +1,12 @@
-use std::collections::HashMap;
-
 use insta::assert_yaml_snapshot;
 use maplit::hashmap;
-use rbx_dom_weak::{RbxId, RbxInstanceProperties, RbxValue};
-use serde::Serialize;
+use rbx_dom_weak::{RbxInstanceProperties, RbxValue};
 
 use rojo_insta_ext::RedactionMap;
 
-use crate::snapshot::{
-    apply_patch_set, InstanceMetadata, InstancePropertiesWithMeta, PatchSet, PatchUpdate, RojoTree,
+use crate::{
+    snapshot::{apply_patch_set, InstancePropertiesWithMeta, PatchSet, PatchUpdate, RojoTree},
+    tree_view::{intern_tree, view_tree},
 };
 
 #[test]
@@ -16,7 +14,7 @@ fn set_name_and_class_name() {
     let mut redactions = RedactionMap::new();
 
     let mut tree = empty_tree();
-    redactions.intern(tree.get_root_id());
+    intern_tree(&tree, &mut redactions);
 
     let patch_set = PatchSet {
         updated_instances: vec![PatchUpdate {
@@ -31,9 +29,8 @@ fn set_name_and_class_name() {
 
     let applied_patch_set = apply_patch_set(&mut tree, patch_set);
 
-    let tree_view = view_tree(&tree);
-    let tree_value = redactions.redacted_yaml(tree_view);
-    assert_yaml_snapshot!(tree_value);
+    let tree_view = view_tree(&tree, &mut redactions);
+    assert_yaml_snapshot!(tree_view);
 
     let applied_patch_value = redactions.redacted_yaml(applied_patch_set);
     assert_yaml_snapshot!(applied_patch_value);
@@ -44,7 +41,7 @@ fn add_property() {
     let mut redactions = RedactionMap::new();
 
     let mut tree = empty_tree();
-    redactions.intern(tree.get_root_id());
+    intern_tree(&tree, &mut redactions);
 
     let patch_set = PatchSet {
         updated_instances: vec![PatchUpdate {
@@ -63,9 +60,8 @@ fn add_property() {
 
     let applied_patch_set = apply_patch_set(&mut tree, patch_set);
 
-    let tree_view = view_tree(&tree);
-    let tree_value = redactions.redacted_yaml(tree_view);
-    assert_yaml_snapshot!(tree_value);
+    let tree_view = view_tree(&tree, &mut redactions);
+    assert_yaml_snapshot!(tree_view);
 
     let applied_patch_value = redactions.redacted_yaml(applied_patch_set);
     assert_yaml_snapshot!(applied_patch_value);
@@ -76,7 +72,7 @@ fn remove_property() {
     let mut redactions = RedactionMap::new();
 
     let mut tree = empty_tree();
-    redactions.intern(tree.get_root_id());
+    intern_tree(&tree, &mut redactions);
 
     {
         let root_id = tree.get_root_id();
@@ -90,9 +86,8 @@ fn remove_property() {
         );
     }
 
-    let tree_view = view_tree(&tree);
-    let tree_value = redactions.redacted_yaml(tree_view);
-    assert_yaml_snapshot!("remove_property_initial", tree_value);
+    let tree_view = view_tree(&tree, &mut redactions);
+    assert_yaml_snapshot!("remove_property_initial", tree_view);
 
     let patch_set = PatchSet {
         updated_instances: vec![PatchUpdate {
@@ -109,9 +104,8 @@ fn remove_property() {
 
     let applied_patch_set = apply_patch_set(&mut tree, patch_set);
 
-    let tree_view = view_tree(&tree);
-    let tree_value = redactions.redacted_yaml(tree_view);
-    assert_yaml_snapshot!("remove_property_after_patch", tree_value);
+    let tree_view = view_tree(&tree, &mut redactions);
+    assert_yaml_snapshot!("remove_property_after_patch", tree_view);
 
     let applied_patch_value = redactions.redacted_yaml(applied_patch_set);
     assert_yaml_snapshot!("remove_property_appied_patch", applied_patch_value);
@@ -127,36 +121,3 @@ fn empty_tree() -> RojoTree {
         metadata: Default::default(),
     })
 }
-
-/// Copy of data from RojoTree in the right shape to have useful snapshots.
-#[derive(Debug, Serialize)]
-struct InstanceView {
-    id: RbxId,
-    name: String,
-    class_name: String,
-    properties: HashMap<String, RbxValue>,
-    metadata: InstanceMetadata,
-    children: Vec<InstanceView>,
-}
-
-fn view_tree(tree: &RojoTree) -> InstanceView {
-    view_instance(tree, tree.get_root_id())
-}
-
-fn view_instance(tree: &RojoTree, id: RbxId) -> InstanceView {
-    let instance = tree.get_instance(id).unwrap();
-
-    InstanceView {
-        id: instance.id(),
-        name: instance.name().to_owned(),
-        class_name: instance.class_name().to_owned(),
-        properties: instance.properties().clone(),
-        metadata: instance.metadata().clone(),
-        children: instance
-            .children()
-            .iter()
-            .copied()
-            .map(|id| view_instance(tree, id))
-            .collect(),
-    }
-}

src/tree_view.rs

@@ -0,0 +1,56 @@
+use std::collections::HashMap;
+
+use rbx_dom_weak::{RbxId, RbxValue};
+use rojo_insta_ext::RedactionMap;
+use serde::Serialize;
+
+use crate::snapshot::{InstanceMetadata, RojoTree};
+
+/// Adds the given Rojo tree into the redaction map and produces a redacted
+/// copy that can be immediately fed to one of Insta's snapshot macros like
+/// `assert_snapshot_yaml`.
+pub fn view_tree(tree: &RojoTree, redactions: &mut RedactionMap) -> serde_yaml::Value {
+    intern_tree(tree, redactions);
+
+    let view = extract_instance_view(tree, tree.get_root_id());
+    redactions.redacted_yaml(view)
+}
+
+/// Adds the given Rojo tree into the redaction map.
+pub fn intern_tree(tree: &RojoTree, redactions: &mut RedactionMap) {
+    let root_id = tree.get_root_id();
+    redactions.intern(root_id);
+
+    for descendant in tree.descendants(root_id) {
+        redactions.intern(descendant.id());
+    }
+}
+
+/// Copy of data from RojoTree in the right shape to have useful snapshots.
+#[derive(Debug, Serialize)]
+struct InstanceView {
+    id: RbxId,
+    name: String,
+    class_name: String,
+    properties: HashMap<String, RbxValue>,
+    metadata: InstanceMetadata,
+    children: Vec<InstanceView>,
+}
+
+fn extract_instance_view(tree: &RojoTree, id: RbxId) -> InstanceView {
+    let instance = tree.get_instance(id).unwrap();
+
+    InstanceView {
+        id: instance.id(),
+        name: instance.name().to_owned(),
+        class_name: instance.class_name().to_owned(),
+        properties: instance.properties().clone(),
+        metadata: instance.metadata().clone(),
+        children: instance
+            .children()
+            .iter()
+            .copied()
+            .map(|id| extract_instance_view(tree, id))
+            .collect(),
+    }
+}