test: add missing blendshape/RC tests (#1293)

UnitTests~/ReactiveComponent/BlendshapeSyncTest.cs

@@ -0,0 +1,61 @@
+using System.Linq;
+using modular_avatar_tests;
+using nadena.dev.modular_avatar.core.editor;
+using NUnit.Framework;
+using UnityEngine;
+
+namespace UnitTests.ReactiveComponent
+{
+    public class BlendshapeSyncTest : TestBase
+    {
+        [Test]
+        public void blendshapeSync_propagatesThroughMeshes()
+        {
+            var root = CreatePrefab("BlendshapeSyncTest.prefab");
+
+            var analysis = new ReactiveObjectAnalyzer().Analyze(root);
+
+            var m1 = analysis.Shapes[new TargetProp()
+            {
+                TargetObject = root.transform.Find("m1").GetComponent<SkinnedMeshRenderer>(),
+                PropertyName = "blendShape.bottom"
+            }];
+            var m2 = analysis.Shapes[new TargetProp()
+            {
+                TargetObject = root.transform.Find("m2").GetComponent<SkinnedMeshRenderer>(),
+                PropertyName = "blendShape.bottom"
+            }];
+            var m3 = analysis.Shapes[new TargetProp()
+            {
+                TargetObject = root.transform.Find("m3").GetComponent<SkinnedMeshRenderer>(),
+                PropertyName = "blendShape.top"
+            }];
+
+            Assert.IsTrue(analysis.Shapes.ContainsKey(new TargetProp()
+            {
+                TargetObject = root.transform.Find("m1").GetComponent<SkinnedMeshRenderer>(),
+                PropertyName = "deletedShape.bottom"
+            }));
+
+            Assert.AreEqual(4, analysis.Shapes.Count);
+
+            foreach (var ag in m1.actionGroups)
+            {
+                ag.TargetProp = new TargetProp();
+            }
+
+            foreach (var ag in m2.actionGroups)
+            {
+                ag.TargetProp = new TargetProp();
+            }
+
+            foreach (var ag in m3.actionGroups)
+            {
+                ag.TargetProp = new TargetProp();
+            }
+
+            Assert.AreEqual(m2.actionGroups, m1.actionGroups);
+            Assert.AreEqual(m3.actionGroups, m1.actionGroups);
+        }
+    }
+}