130 lines
5.2 KiB
C#
130 lines
5.2 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using UnityEngine.UI;
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using UnityEngine.TestTools;
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using System.IO;
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using System.Reflection;
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using NUnit.Framework;
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using UnityEngine.EventSystems;
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using UnityEditor;
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public class ScrollBarClamp : IPrebuildSetup
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{
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// This test tests that setting scrollBar.value will not be clamped (case 802330 - Scrollbar stops velocity of 'Scroll Rect' unexpectedly)
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GameObject m_PrefabRoot;
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GameObject m_CameraGO;
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const string kPrefabPath = "Assets/Resources/ScrollBarClampPrefab.prefab";
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public void Setup()
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{
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#if UNITY_EDITOR
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var rootGO = new GameObject("RootGO");
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var rootCanvasGO = new GameObject("Canvas", typeof(Canvas));
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var canvas = rootCanvasGO.GetComponent<Canvas>();
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canvas.renderMode = RenderMode.ScreenSpaceOverlay;
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rootCanvasGO.transform.SetParent(rootGO.transform);
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var scrollRectGo = new GameObject("Scroll View", typeof(RectTransform), typeof(ScrollRect), typeof(RectMask2D));
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var scrollRectTransform = scrollRectGo.GetComponent<RectTransform>();
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scrollRectTransform.SetParent(rootCanvasGO.transform);
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scrollRectTransform.anchorMin = Vector2.zero;
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scrollRectTransform.anchorMax = Vector2.one;
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scrollRectTransform.sizeDelta = Vector2.zero;
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scrollRectTransform.anchoredPosition = Vector2.zero;
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var scrollRect = scrollRectGo.GetComponent<ScrollRect>();
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scrollRect.movementType = ScrollRect.MovementType.Elastic;
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var scrollbarGo = new GameObject("Scrollbar", typeof(RectTransform), typeof(Scrollbar));
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var scrollbarTransform = scrollbarGo.GetComponent<RectTransform>();
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scrollbarTransform.SetParent(scrollRectTransform);
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scrollbarTransform.anchorMin = new Vector2(1, 0);
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scrollbarTransform.anchorMax = new Vector2(1, 1);
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scrollbarTransform.anchoredPosition = Vector2.zero;
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scrollbarTransform.pivot = new Vector2(1, 0.5f);
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scrollbarTransform.sizeDelta = new Vector2(20, 0);
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var scrollbar = scrollbarGo.GetComponent<Scrollbar>();
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scrollRect.verticalScrollbar = scrollbar;
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var contentGo = new GameObject("Content", typeof(RectTransform), typeof(VerticalLayoutGroup));
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var contentTransform = contentGo.GetComponent<RectTransform>();
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contentTransform.SetParent(scrollRectTransform);
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contentTransform.anchorMin = new Vector2(0, 1);
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contentTransform.anchorMax = new Vector2(1, 1);
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contentTransform.anchoredPosition = Vector2.zero;
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contentTransform.pivot = new Vector2(0.5f, 1);
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contentTransform.sizeDelta = new Vector2(0, 1135);
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scrollRect.content = contentTransform;
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var layoutGroup = contentGo.GetComponent<VerticalLayoutGroup>();
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layoutGroup.padding = new RectOffset(10, 10, 0, 0);
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layoutGroup.childAlignment = TextAnchor.UpperLeft;
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layoutGroup.childControlHeight = true;
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layoutGroup.childControlWidth = true;
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layoutGroup.childForceExpandHeight = false;
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layoutGroup.childForceExpandWidth = false;
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for (int i = 0; i < 20; i++)
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{
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var item = new GameObject("Item" + i, typeof(RectTransform), typeof(LayoutElement));
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var itemTransform = item.GetComponent<RectTransform>();
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itemTransform.pivot = new Vector2(0.5f, 1);
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itemTransform.SetParent(contentTransform);
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var layoutElement = item.GetComponent<LayoutElement>();
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layoutElement.minWidth = 620;
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layoutElement.minHeight = 100;
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layoutElement.preferredWidth = 620;
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layoutElement.preferredHeight = 100;
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}
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if (!Directory.Exists("Assets/Resources/"))
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Directory.CreateDirectory("Assets/Resources/");
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UnityEditor.PrefabUtility.SaveAsPrefabAsset(rootGO, kPrefabPath);
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GameObject.DestroyImmediate(rootGO);
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#endif
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}
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[SetUp]
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public void TestSetup()
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{
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m_PrefabRoot = Object.Instantiate(Resources.Load("ScrollBarClampPrefab")) as GameObject;
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m_CameraGO = new GameObject("Camera", typeof(Camera));
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Canvas.ForceUpdateCanvases();
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}
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//tests that setting the scrollbar value will not be clamped, but the private scrollbar functions will be clamped
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[Test]
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public void Scrollbar_clamp()
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{
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var scrollBar = m_PrefabRoot.GetComponentInChildren<Scrollbar>();
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scrollBar.value = 1.5f;
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Assert.Greater(scrollBar.value, 1f);
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scrollBar.value = -0.5f;
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Assert.Less(scrollBar.value, 0f);
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MethodInfo method = typeof(Scrollbar).GetMethod("DoUpdateDrag", BindingFlags.NonPublic | BindingFlags.Instance);
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method.Invoke(scrollBar, new object[] { new Vector2(1.5f, 1.5f), 1f });
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Assert.LessOrEqual(scrollBar.value, 1f);
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method.Invoke(scrollBar, new object[] { new Vector2(-0.5f, -0.5f), 1f });
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Assert.GreaterOrEqual(scrollBar.value, 0f);
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}
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[TearDown]
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public void TearDown()
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{
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Object.DestroyImmediate(m_PrefabRoot);
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GameObject.DestroyImmediate(m_CameraGO);
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}
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[OneTimeTearDown]
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public void OneTimeTearDown()
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{
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#if UNITY_EDITOR
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AssetDatabase.DeleteAsset(kPrefabPath);
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#endif
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}
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}
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