File size: 6,942 Bytes
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using NUnit.Framework;
using UnityEditor;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.TestTools;
namespace LayoutTests
{
public class HorizontalLayoutGroupTests : IPrebuildSetup
{
GameObject m_PrefabRoot;
const string kPrefabPath = "Assets/Resources/HorizontalLayoutGroupPrefab.prefab";
public void Setup()
{
#if UNITY_EDITOR
var rootGO = new GameObject("rootGo");
var canvasGO = new GameObject("Canvas", typeof(Canvas));
canvasGO.transform.SetParent(rootGO.transform);
var groupGO = new GameObject("Group", typeof(RectTransform), typeof(HorizontalLayoutGroup));
groupGO.transform.SetParent(canvasGO.transform);
var horizontalLayoutGroup = groupGO.GetComponent<HorizontalLayoutGroup>();
horizontalLayoutGroup.padding = new RectOffset(2, 4, 3, 5);
horizontalLayoutGroup.spacing = 1;
horizontalLayoutGroup.childForceExpandWidth = false;
horizontalLayoutGroup.childForceExpandHeight = false;
horizontalLayoutGroup.childControlWidth = true;
horizontalLayoutGroup.childControlHeight = true;
var element1GO = new GameObject("Element1", typeof(RectTransform), typeof(LayoutElement));
element1GO.transform.SetParent(groupGO.transform);
var layoutElement1 = element1GO.GetComponent<LayoutElement>();
layoutElement1.minWidth = 5;
layoutElement1.minHeight = 10;
layoutElement1.preferredWidth = 100;
layoutElement1.preferredHeight = 50;
layoutElement1.flexibleWidth = 0;
layoutElement1.flexibleHeight = 0;
var element2GO = new GameObject("Element2", typeof(RectTransform), typeof(LayoutElement));
element2GO.transform.SetParent(groupGO.transform);
var layoutElement2 = element2GO.GetComponent<LayoutElement>();
layoutElement2.minWidth = 10;
layoutElement2.minHeight = 5;
layoutElement2.preferredWidth = -1;
layoutElement2.preferredHeight = -1;
layoutElement2.flexibleWidth = 0;
layoutElement2.flexibleHeight = 0;
var element3GO = new GameObject("Element3", typeof(RectTransform), typeof(LayoutElement));
element3GO.transform.SetParent(groupGO.transform);
var layoutElement3 = element3GO.GetComponent<LayoutElement>();
layoutElement3.minWidth = 25;
layoutElement3.minHeight = 15;
layoutElement3.preferredWidth = 200;
layoutElement3.preferredHeight = 80;
layoutElement3.flexibleWidth = 1;
layoutElement3.flexibleHeight = 1;
if (!Directory.Exists("Assets/Resources/"))
Directory.CreateDirectory("Assets/Resources/");
PrefabUtility.SaveAsPrefabAsset(rootGO, kPrefabPath);
GameObject.DestroyImmediate(rootGO);
#endif
}
[SetUp]
public void TestSetup()
{
m_PrefabRoot = Object.Instantiate(Resources.Load("HorizontalLayoutGroupPrefab")) as GameObject;
}
[TearDown]
public void TearDown()
{
GameObject.DestroyImmediate(m_PrefabRoot);
}
[OneTimeTearDown]
public void OneTimeTearDown()
{
#if UNITY_EDITOR
AssetDatabase.DeleteAsset(kPrefabPath);
#endif
}
[Test]
public void TestCalculateLayoutInputHorizontal()
{
HorizontalLayoutGroup layoutGroup = m_PrefabRoot.GetComponentInChildren<HorizontalLayoutGroup>();
layoutGroup.CalculateLayoutInputHorizontal();
layoutGroup.SetLayoutHorizontal();
layoutGroup.CalculateLayoutInputVertical();
layoutGroup.SetLayoutVertical();
Assert.AreEqual(48, layoutGroup.minWidth);
Assert.AreEqual(318, layoutGroup.preferredWidth);
Assert.AreEqual(1, layoutGroup.flexibleWidth);
}
[Test]
public void TestCalculateLayoutInputVertical()
{
HorizontalLayoutGroup layoutGroup = m_PrefabRoot.GetComponentInChildren<HorizontalLayoutGroup>();
layoutGroup.CalculateLayoutInputHorizontal();
layoutGroup.SetLayoutHorizontal();
layoutGroup.CalculateLayoutInputVertical();
layoutGroup.SetLayoutVertical();
Assert.AreEqual(23, layoutGroup.minHeight);
Assert.AreEqual(88, layoutGroup.preferredHeight);
Assert.AreEqual(1, layoutGroup.flexibleHeight);
Assert.AreEqual(1, layoutGroup.flexibleHeight);
}
[Test]
public void TestCalculateLayoutHorizontal()
{
var parentGO = m_PrefabRoot.transform.GetChild(0).GetChild(0);
var element1GO = parentGO.GetChild(0);
var element1Trans = element1GO.GetComponent<RectTransform>();
var element2GO = parentGO.GetChild(1);
var element2Trans = element2GO.GetComponent<RectTransform>();
var element3GO = parentGO.GetChild(2);
var element3Trans = element3GO.GetComponent<RectTransform>();
HorizontalLayoutGroup layoutGroup = m_PrefabRoot.GetComponentInChildren<HorizontalLayoutGroup>();
layoutGroup.CalculateLayoutInputHorizontal();
layoutGroup.SetLayoutHorizontal();
layoutGroup.CalculateLayoutInputVertical();
layoutGroup.SetLayoutVertical();
Assert.AreEqual(13.6f, element1Trans.anchoredPosition.x, 0.1f);
Assert.AreEqual(31.3f, element2Trans.anchoredPosition.x, 0.1f);
Assert.AreEqual(66.6f, element3Trans.anchoredPosition.x, 0.1f);
}
[Test]
public void TestCalculateLayoutHorizontalReversed()
{
var parentGO = m_PrefabRoot.transform.GetChild(0).GetChild(0);
var element1GO = parentGO.GetChild(0);
var element1Trans = element1GO.GetComponent<RectTransform>();
var element2GO = parentGO.GetChild(1);
var element2Trans = element2GO.GetComponent<RectTransform>();
var element3GO = parentGO.GetChild(2);
var element3Trans = element3GO.GetComponent<RectTransform>();
HorizontalLayoutGroup layoutGroup = m_PrefabRoot.GetComponentInChildren<HorizontalLayoutGroup>();
layoutGroup.reverseArrangement = true;
layoutGroup.CalculateLayoutInputHorizontal();
layoutGroup.SetLayoutHorizontal();
layoutGroup.CalculateLayoutInputVertical();
layoutGroup.SetLayoutVertical();
Assert.AreEqual(84.4f, element1Trans.anchoredPosition.x, 0.1f);
Assert.AreEqual(66.7f, element2Trans.anchoredPosition.x, 0.1f);
Assert.AreEqual(31.4f, element3Trans.anchoredPosition.x, 0.1f);
}
}
}
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