using System.Collections;
using BracerLib.Utility.Testing;
using UnityEngine.Assertions;
using UnityEngine.SceneManagement;
using UnityEngine.TestTools;

namespace BracerLib.Tests.Scenes
{
    public class SceneTests : TestBase
    {
        private Scene oneTimeScene;
        private Scene testScene;

        [UnityTest]
        public IEnumerator CloseSceneWithZeroScenesRegistered()
        {
            var sceneCount = SceneManager.loadedSceneCount;
            Assert.IsTrue(sceneCount > 0);

            yield return CloseLatestScene();

            Assert.IsTrue(SceneManager.loadedSceneCount == sceneCount);
        }

        [UnityTest]
        public IEnumerator CreateScenesWithSpecificLifetimes()
        {
            yield return OpenScene("Scenes/Tests/Test_Empty", true);
            oneTimeScene = SceneManager.GetSceneAt(SceneManager.loadedSceneCount - 1);
            Assert.IsTrue(oneTimeScene.isLoaded);

            yield return OpenScene("Scenes/Tests/Test_Empty");
            testScene = SceneManager.GetSceneAt(SceneManager.loadedSceneCount - 1);
            Assert.IsTrue(testScene.isLoaded);
        }

        [UnityTest]
        public IEnumerator TestSceneLifetimes()
        {
            yield return null;

            Assert.IsTrue(oneTimeScene.isLoaded);
            Assert.IsFalse(testScene.isLoaded);
        }
    }
}