Initial Commit

Library/PackageCache/com.unity.ugui@1.0.0/Tests/Editor/Canvas/RootCanvasTests.cs

@@ -0,0 +1,49 @@
+using NUnit.Framework;
+using UnityEngine;
+
+[Category("Canvas")]
+public class RootCanvasTests : TestBehaviourBase<UnityEngine.Canvas>
+{
+    // A simple nested canvas hierarchy
+    // m_TestObject
+    //     └ rootCanvasChild
+    //              └ emptyChildGameObject
+    //                          └ baseCanvas
+    private UnityEngine.Canvas rootCanvasChild;
+    private GameObject emptyChildGameObject;
+    private UnityEngine.Canvas baseCanvas;
+
+    [SetUp]
+    public override void TestSetup()
+    {
+        base.TestSetup();
+
+        var rootChildGO = new GameObject("root child");
+        rootCanvasChild = rootChildGO.AddComponent<Canvas>();
+
+        emptyChildGameObject = new GameObject("empty");
+
+        var baseGO = new GameObject("base");
+        baseCanvas = baseGO.AddComponent<Canvas>();
+
+        baseCanvas.transform.SetParent(emptyChildGameObject.transform);
+        emptyChildGameObject.transform.SetParent(rootChildGO.transform);
+        rootChildGO.transform.SetParent(m_TestObject.transform);
+    }
+
+    [Test]
+    public void IsRootCanvasTest()
+    {
+        Assert.IsFalse(baseCanvas.isRootCanvas);
+        Assert.IsFalse(rootCanvasChild.isRootCanvas);
+        Assert.IsTrue(m_TestObject.isRootCanvas);
+    }
+
+    [Test]
+    public void CorrectRootCanvasReturned()
+    {
+        Assert.AreEqual(m_TestObject, m_TestObject.rootCanvas);
+        Assert.AreEqual(m_TestObject, rootCanvasChild.rootCanvas);
+        Assert.AreEqual(m_TestObject, baseCanvas.rootCanvas);
+    }
+}