Initial Commit

Library/PackageCache/com.unity.ugui@1.0.0/Tests/Runtime/Canvas/SiblingOrderChangesLayout.cs

@@ -0,0 +1,83 @@
+using UnityEngine;
+using UnityEngine.TestTools;
+using NUnit.Framework;
+using System.Collections;
+using UnityEngine.UI;
+
+[TestFixture]
+[Category("RegressionTest")]
+[Description("Case 723062")]
+public class SiblingOrderChangesLayout
+{
+    GameObject m_CanvasGO;
+    GameObject m_ParentGO;
+    GameObject m_Child1GO;
+    GameObject m_Child2GO;
+
+    [SetUp]
+    public void TestSetup()
+    {
+        m_CanvasGO = new GameObject("Canvas", typeof(Canvas));
+        m_ParentGO = new GameObject("ParentRenderer");
+        m_Child1GO = CreateTextObject("ChildRenderer1");
+        m_Child2GO = CreateTextObject("ChildRenderer2");
+#if UNITY_EDITOR
+        UnityEditor.EditorApplication.ExecuteMenuItem("Window/General/Game");
+#endif
+    }
+
+    [UnityTest]
+    public IEnumerator ReorderingSiblingChangesLayout()
+    {
+        m_ParentGO.transform.SetParent(m_CanvasGO.transform);
+        m_Child1GO.transform.SetParent(m_ParentGO.transform);
+        m_Child2GO.transform.SetParent(m_ParentGO.transform);
+
+        m_ParentGO.AddComponent<CanvasRenderer>();
+        m_ParentGO.AddComponent<RectTransform>();
+        m_ParentGO.AddComponent<VerticalLayoutGroup>();
+        m_ParentGO.AddComponent<ContentSizeFitter>();
+
+        yield return new WaitForEndOfFrame();
+
+        Vector2 child1Pos = m_Child1GO.GetComponent<RectTransform>().anchoredPosition;
+        Vector2 child2Pos = m_Child2GO.GetComponent<RectTransform>().anchoredPosition;
+
+        Assert.That(child1Pos, Is.Not.EqualTo(child2Pos));
+        Assert.That(m_Child1GO.GetComponent<CanvasRenderer>().hasMoved, Is.False, "CanvasRenderer.hasMoved should be false");
+
+        m_Child2GO.transform.SetAsFirstSibling();
+        Canvas.ForceUpdateCanvases();
+
+        Assert.That(m_Child1GO.GetComponent<CanvasRenderer>().hasMoved, Is.True, "CanvasRenderer.hasMoved should be true");
+        Vector2 newChild1Pos = m_Child1GO.GetComponent<RectTransform>().anchoredPosition;
+        Vector2 newChild2Pos = m_Child2GO.GetComponent<RectTransform>().anchoredPosition;
+
+        Assert.That(newChild1Pos, Is.EqualTo(child2Pos), "Child1 should have moved to Child2's position");
+        Assert.That(newChild2Pos, Is.EqualTo(child1Pos), "Child2 should have moved to Child1's position");
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        GameObject.DestroyImmediate(m_CanvasGO);
+    }
+
+    // Factory method for creating UI text objects taken from the original bug repro scene:
+    private GameObject CreateTextObject(string name)
+    {
+        GameObject outputTextGameObject = new GameObject("OutputContent", typeof(CanvasRenderer));
+
+        RectTransform outputTextTransform = outputTextGameObject.AddComponent<RectTransform>();
+        outputTextTransform.pivot = new Vector2(0.5f, 0);
+        outputTextTransform.anchorMin = Vector2.zero;
+        outputTextTransform.anchorMax = new Vector2(1, 0);
+        outputTextTransform.anchoredPosition = Vector2.zero;
+        outputTextTransform.sizeDelta = Vector2.zero;
+
+        Text outputText = outputTextGameObject.AddComponent<Text>();
+        outputText.text = "Hello World!";
+        outputTextGameObject.name = name;
+        return outputTextGameObject;
+    }
+}