Initial Commit

Library/PackageCache/com.unity.ugui@1.0.0/Tests/Runtime/EventSystem/GraphicRaycasterTests.cs

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+using System.Collections;
+using System.Collections.Generic;
+using NUnit.Framework;
+using UnityEngine;
+using UnityEngine.EventSystems;
+using UnityEngine.TestTools;
+using UnityEngine.UI;
+using UnityEngine.TestTools.Utils;
+
+public class GraphicRaycasterTests
+{
+    Camera m_Camera;
+    EventSystem m_EventSystem;
+    Canvas m_Canvas;
+    RectTransform m_CanvasRectTrans;
+    Text m_TextComponent;
+
+    [SetUp]
+    public void TestSetup()
+    {
+        m_Camera = new GameObject("GraphicRaycaster Camera").AddComponent<Camera>();
+        m_Camera.transform.position = Vector3.zero;
+        m_Camera.transform.LookAt(Vector3.forward);
+        m_Camera.farClipPlane = 10;
+
+        m_EventSystem = new GameObject("Event System").AddComponent<EventSystem>();
+
+        m_Canvas = new GameObject("Canvas").AddComponent<Canvas>();
+        m_Canvas.renderMode = RenderMode.WorldSpace;
+        m_Canvas.worldCamera = m_Camera;
+        m_Canvas.gameObject.AddComponent<GraphicRaycaster>();
+        m_CanvasRectTrans = m_Canvas.GetComponent<RectTransform>();
+        m_CanvasRectTrans.sizeDelta = new Vector2(100, 100);
+
+        var textGO = new GameObject("Text");
+        m_TextComponent = textGO.AddComponent<Text>();
+        var textRectTrans = m_TextComponent.rectTransform;
+        textRectTrans.SetParent(m_Canvas.transform);
+        textRectTrans.anchorMin = Vector2.zero;
+        textRectTrans.anchorMax = Vector2.one;
+        textRectTrans.offsetMin = Vector2.zero;
+        textRectTrans.offsetMax = Vector2.zero;
+    }
+
+    [UnityTest]
+    public IEnumerator GraphicRaycasterDoesNotHitGraphicBehindCameraFarClipPlane()
+    {
+        m_CanvasRectTrans.anchoredPosition3D = new Vector3(0, 0, 11);
+
+        yield return null;
+
+        var results = new List<RaycastResult>();
+        var pointerEvent = new PointerEventData(m_EventSystem)
+        {
+            position = new Vector2(Screen.width / 2f, Screen.height / 2f)
+        };
+
+        m_EventSystem.RaycastAll(pointerEvent, results);
+
+        Assert.IsEmpty(results, "Expected no results from a raycast against a graphic behind the camera's far clip plane.");
+    }
+
+    [UnityTest]
+    public IEnumerator GraphicRaycasterReturnsWorldPositionAndWorldNormal()
+    {
+        m_CanvasRectTrans.anchoredPosition3D = new Vector3(0, 0, 11);
+        m_Camera.farClipPlane = 12;
+
+        yield return null;
+
+        var results = new List<RaycastResult>();
+        var pointerEvent = new PointerEventData(m_EventSystem)
+        {
+            position = new Vector2(Screen.width / 2f, Screen.height / 2f)
+        };
+
+        m_EventSystem.RaycastAll(pointerEvent, results);
+        // on katana on 10.13 agents world position returned is 0, -0.00952, 11
+        // it does not reproduce for me localy, so we just tweak the comparison threshold
+        Assert.That(new Vector3(0, 0, 11), Is.EqualTo(results[0].worldPosition).Using(new Vector3EqualityComparer(0.01f)));
+        Assert.That(new Vector3(0, 0, -1), Is.EqualTo(results[0].worldNormal).Using(new Vector3EqualityComparer(0.001f)));
+    }
+
+    [UnityTest]
+    public IEnumerator GraphicRaycasterUsesGraphicPadding()
+    {
+        m_CanvasRectTrans.anchoredPosition3D = new Vector3(0, 0, 11);
+        m_TextComponent.raycastPadding = new Vector4(-50, -50, -50, -50);
+        m_Camera.farClipPlane = 12;
+        yield return null;
+
+        var results = new List<RaycastResult>();
+        var pointerEvent = new PointerEventData(m_EventSystem)
+        {
+            position = new Vector2((Screen.width / 2f) - 60, Screen.height / 2f)
+        };
+
+        m_EventSystem.RaycastAll(pointerEvent, results);
+
+        Assert.IsNotEmpty(results, "Expected at least 1 result from a raycast outside the graphics RectTransform whose padding would make the click hit.");
+    }
+
+    [UnityTest]
+    public IEnumerator GraphicOnTheSamePlaneAsTheCameraCanBeTargetedForEvents()
+    {
+        m_Canvas.renderMode = RenderMode.ScreenSpaceCamera;
+        m_Canvas.planeDistance = 0;
+        m_Camera.orthographic = true;
+        m_Camera.orthographicSize = 1;
+        m_Camera.nearClipPlane = 0;
+        m_Camera.farClipPlane = 12;
+        yield return null;
+
+        var results = new List<RaycastResult>();
+        var pointerEvent = new PointerEventData(m_EventSystem)
+        {
+            position = new Vector2((Screen.width / 2f), Screen.height / 2f)
+        };
+
+        m_EventSystem.RaycastAll(pointerEvent, results);
+
+        Assert.IsNotEmpty(results, "Expected at least 1 result from a raycast ");
+    }
+
+    [TearDown]
+    public void TearDown()
+    {
+        Object.DestroyImmediate(m_Camera.gameObject);
+        Object.DestroyImmediate(m_EventSystem.gameObject);
+        Object.DestroyImmediate(m_Canvas.gameObject);
+    }
+}