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Library/PackageCache/com.unity.ugui@1.0.0/Tests/Runtime/Graphic/RawImageTest.cs

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+using System.Collections;
+using System.IO;
+using NUnit.Framework;
+using UnityEditor;
+using UnityEngine;
+using UnityEngine.TestTools;
+using UnityEngine.UI;
+
+namespace Graphics
+{
+    public class RawImageTest : IPrebuildSetup
+    {
+        private const int Width = 32;
+        private const int Height = 32;
+
+        private GameObject m_PrefabRoot;
+        private RawImageTestHook m_image;
+        private Texture2D m_defaultTexture;
+
+        const string kPrefabPath = "Assets/Resources/RawImageUpdatePrefab.prefab";
+
+        public void Setup()
+        {
+#if UNITY_EDITOR
+            var rootGO = new GameObject("Root");
+            var canvasGO = new GameObject("Canvas", typeof(Canvas));
+            var canvas = canvasGO.GetComponent<Canvas>();
+            canvas.renderMode = RenderMode.WorldSpace;
+            canvasGO.transform.SetParent(rootGO.transform);
+
+            var imageGO = new GameObject("Image", typeof(RectTransform), typeof(RawImageTestHook));
+            var imageTransform = imageGO.GetComponent<RectTransform>();
+            imageTransform.SetParent(canvas.transform);
+
+            imageTransform.anchoredPosition = Vector2.zero;
+
+            if (!Directory.Exists("Assets/Resources/"))
+                Directory.CreateDirectory("Assets/Resources/");
+
+            PrefabUtility.SaveAsPrefabAsset(rootGO, kPrefabPath);
+            GameObject.DestroyImmediate(rootGO);
+#endif
+        }
+
+        [SetUp]
+        public void TestSetup()
+        {
+            m_PrefabRoot = Object.Instantiate(Resources.Load("RawImageUpdatePrefab")) as GameObject;
+
+            m_image = m_PrefabRoot.transform.Find("Canvas/Image").GetComponent<RawImageTestHook>();
+            m_defaultTexture = new Texture2D(Width, Height);
+            m_image.texture = m_defaultTexture;
+        }
+
+        [UnityTest]
+        public IEnumerator Sprite_Material()
+        {
+            m_image.ResetTest();
+
+            // can test only on texture change, same texture is bypass by RawImage property
+            m_image.texture = new Texture2D(Width, Height);
+            yield return new WaitUntil(() => m_image.isGeometryUpdated);
+
+            // validate that layout change rebuild is called
+            Assert.IsTrue(m_image.isMaterialRebuild);
+        }
+
+        [TearDown]
+        public void TearDown()
+        {
+            GameObject.DestroyImmediate(m_PrefabRoot);
+#if UNITY_EDITOR
+            AssetDatabase.DeleteAsset(kPrefabPath);
+#endif
+        }
+    }
+}