test

My project/Library/PackageCache/com.unity.ugui/Tests/Runtime/TMP/TMP_CanvasTests.cs

@@ -0,0 +1,48 @@
+using UnityEngine;
+using NUnit.Framework;
+using System.IO;
+using System.Collections.Generic;
+using UnityEngine.UI;
+using UnityEngine.EventSystems;
+
+
+namespace TMPro
+{
+    public class TMP_CanvasTests
+    {
+        [OneTimeSetUp]
+        public void Setup()
+        {
+            if (!Directory.Exists(Path.GetFullPath("Assets/TextMesh Pro")))
+            {
+                Debug.Log("Skipping over Editor tests as TMP Essential Resources are missing from the current test project.");
+                Assert.Ignore();
+                return;
+            }
+        }
+
+        [Test]
+        public void EnablingAndDisablingCanvasDoesNotRegenerateText() // (UUM-45320)
+        {
+            var go = new GameObject();
+            var canvas = go.AddComponent<Canvas>();
+
+            var goChild = new GameObject();
+            var text = goChild.AddComponent<TextMeshProUGUI>();
+
+            goChild.transform.SetParent(go.transform);
+
+            // Force text to be generated
+            text.text = "Hello World";
+            text.ForceMeshUpdate();
+
+            Assert.IsFalse(text.havePropertiesChanged, "Text should not have changed yet");
+
+            canvas.enabled = false;
+            canvas.enabled = true;
+
+            Assert.IsFalse(text.havePropertiesChanged, "Text should not have changed after enabling / disabling canvas");
+        }
+
+    }
+}