refine test samples

Samples/UIWidgetsSamples_2019_4/Assets/Scene/TestUISpawner.unity

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Samples/UIWidgetsSamples_2019_4/Assets/Scene/TestUISpawner.unity.meta

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Samples/UIWidgetsSamples_2019_4/Assets/Script/UISpawnerTest.cs

+using UnityEngine;
+using UnityEngine.UI;
+
+namespace UIWidgetsSample
+{
+    /*
+     * In this test we are testing a scenario that, spawning UIWidgetsPanels in the Update function of a
+     * Monobehaviour object.
+     *
+     * This scenario used to cause fatal crash on other Editor and Player. Therefore this test sample will
+     * be very useful when doing regression tests. Please refer to the corresponding PR
+     * description for the root cause of the crash and how we fix it.
+     */
+    public class UISpawnerTest : MonoBehaviour
+    {
+        private float curTime = 0.0f;
+
+        private int totalNum = 10;
+
+        private bool isOk = false;
+
+        private void Update()
+        {
+            if (Input.GetKeyDown(KeyCode.A))
+            {
+                this.isOk = true;
+            }
+
+            if (!this.isOk)
+            {
+                return;
+            }
+
+            if (this.totalNum <= 0)
+            {
+                return;
+            }
+            
+            this.curTime += Time.deltaTime;
+            if (this.curTime < 0)
+            {
+                return;
+            }
+
+            this.curTime = 0;
+            this.totalNum--;
+            
+            {
+                GameObject gameobject = new GameObject();
+                GameObject newCanvas = new GameObject();
+
+                Canvas c = newCanvas.AddComponent<Canvas>();
+                c.renderMode = RenderMode.WorldSpace;
+
+                newCanvas.AddComponent<CanvasScaler>();
+                newCanvas.AddComponent<GraphicRaycaster>();
+
+                var canvasTransform = c.GetComponent<RectTransform>();
+                canvasTransform.anchorMin = new Vector2(0, 0);
+                canvasTransform.anchorMax = new Vector2(0, 0);
+                canvasTransform.sizeDelta = new Vector2(800, 800);
+
+                GameObject panel = new GameObject("RawImage");
+                var rectTransform = panel.AddComponent<RectTransform>();
+                rectTransform.anchorMin = new Vector2(0, 0);
+                rectTransform.anchorMax = new Vector2(1, 1);
+                rectTransform.offsetMin = new Vector2(0, 0);
+                rectTransform.offsetMax = new Vector2(0, 0);
+
+                panel.AddComponent<CanvasRenderer>();
+                panel.AddComponent<HoverSample>();
+                panel.transform.SetParent(newCanvas.transform, false);
+                newCanvas.transform.SetParent(gameobject.transform, true);
+            }
+        }
+    }
+}

Samples/UIWidgetsSamples_2019_4/Assets/Script/TestFei.cs

-using UnityEngine;
-using UnityEngine.UI;
-
-namespace UIWidgetsSample
-{
-    public class TestFei : MonoBehaviour
-    {
-        private float curTime = 0.0f;
-
-        private int totalNum = 10;
-
-        private bool isOk = false;
-
-        public static bool needwaiting = false;
-        
-        private void Update()
-        {
-            if (Input.GetKeyDown(KeyCode.A))
-            {
-                this.isOk = true;
-            }
-
-            if (!this.isOk)
-            {
-                return;
-            }
-
-            //if (needwaiting)
-            //{
-            //    return;
-            //}
-            
-            if (this.totalNum <= 0)
-            {
-                return;
-            }
-            
-            this.curTime += Time.deltaTime;
-            if (this.curTime < 0)
-            {
-                return;
-            }
-
-            this.curTime = 0;
-            this.totalNum--;
-
-            //needwaiting = true;
-            //for (int i = 0; i < 10; i++)
-            {
-                GameObject gameobject = new GameObject();
-                GameObject newCanvas = new GameObject();
-
-                Canvas c = newCanvas.AddComponent<Canvas>();
-                c.renderMode = RenderMode.WorldSpace;
-
-                newCanvas.AddComponent<CanvasScaler>();
-                newCanvas.AddComponent<GraphicRaycaster>();
-
-                var canvasTransform = c.GetComponent<RectTransform>();
-                canvasTransform.anchorMin = new Vector2(0, 0);
-                canvasTransform.anchorMax = new Vector2(0, 0);
-                canvasTransform.sizeDelta = new Vector2(800, 800);
-
-                GameObject panel = new GameObject("RawImage");
-                var rectTransform = panel.AddComponent<RectTransform>();
-                rectTransform.anchorMin = new Vector2(0, 0);
-                rectTransform.anchorMax = new Vector2(1, 1);
-                rectTransform.offsetMin = new Vector2(0, 0);
-                rectTransform.offsetMax = new Vector2(0, 0);
-
-                panel.AddComponent<CanvasRenderer>();
-                panel.AddComponent<HoverSample>();
-                panel.transform.SetParent(newCanvas.transform, false);
-                newCanvas.transform.SetParent(gameobject.transform, true);
-            }
-        }
-    }
-}