【Unity】クリック座標を指定してButton/ToggleのOnPointerClick()を発火させる【TestRunner】

ClickTest.cs

using UnityEngine.TestTools;
using NUnit.Framework;
using System.Collections;
using UnityEngine.EventSystems;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using System.Linq;
using UnityEngine.SceneManagement;


public class ClickTest
{
    [SetUp]
    public void SetUp()
    {
        SceneManager.LoadScene("Main");
    }

    [UnityTest]
    public IEnumerator TestWithEnumeratorPasses()
    {
        Click(170, 520);
        Assert.True(GameObject.FindObjectOfType<Toggle>().isOn);
        yield return null;
    }

    void Click(int x, int y)
    {
        // ポインタイベントの作成
        var ev = new PointerEventData(EventSystem.current);
        ev.position = new Vector2(x, y);

        // EventSystem経由でクリック結果を取得
        var results = new List<RaycastResult>();
        EventSystem.current.RaycastAll(ev, results);
        var target = results.Select(r => r.gameObject).First(t => t != null);

        // 階層を辿ってクリックイベントを発火
        ExecuteClickHierarchy(target, ev);
    }

    static void ExecuteClickHierarchy(GameObject root, BaseEventData eventData)
    {
        var transformList = new List<Transform>();
        GetEventChain(root, transformList);

        for (var i = 0; i < transformList.Count; i++)
        {
            var transform = transformList[i];
            ExecuteEvents.EventFunction<IPointerClickHandler> callback = (handler, ev) =>
            {
                handler.OnPointerClick((PointerEventData)ev);
            };
            if (ExecuteEvents.Execute<IPointerClickHandler>(transform.gameObject, eventData, callback))
            {
                return;
            }
        }
        Debug.LogError("クリック失敗");
    }

    static void GetEventChain(GameObject root, IList<Transform> eventChain)
    {
        if (root == null) { return; }

        var t = root.transform;
        while (t != null)
        {
            eventChain.Add(t);
            t = t.parent;
        }
    }
}