Resolve WES-187 "Unit tests common and course"

Assets/Common/Tests/PlayMode/CourseItemTests.cs

@@ -0,0 +1,53 @@
+using NUnit.Framework;
+using UnityEngine.UI;
+using System.Collections;
+using System.IO;
+using UnityEditor;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+using UnityEngine.TestTools;
+
+public class CourseItemTests
+{
+    [UnitySetUp]
+    public IEnumerator SetupFunction()
+    {
+        string path = $"{Application.persistentDataPath}/wesign_unit_test.json";
+        string oneUser = $"{{\"version\":1027,\"users\":[{{\"entries\":[],\"username\":\"TEST\",\"avatarIndex\":0,\"playtime\":0.0,\"minigames\":[],\"courses\":[]}}],\"currentUser\":0,\"currentMinigame\":0,\"currentCourse\":0,\"currentTheme\":0}}";
+
+        File.WriteAllText(path, oneUser);
+        PersistentDataController.PATH = path;
+        PersistentDataController.GetInstance().Load();
+        AssetDatabase.LoadAssetAtPath<UserAvatarList>("Assets/Accounts/ScriptableObjects/UserAvatarList.asset").Awake();
+        SystemController.GetInstance().LoadNextScene("Common/Scenes/CoursesMenuScreen");
+        yield return new WaitForSeconds(0.2f);
+    }
+
+    /// <summary>
+    /// Cleanup after testing
+    /// </summary>
+    [TearDown]
+    public void TearDown_CourseItemTests()
+    {
+        PersistentDataController.PATH = null;
+    }
+
+    /// <summary>
+    /// Test to verify the callback function of a course item button.
+    /// </summary>
+    [UnityTest]
+    public IEnumerator CallBackTest()
+    {
+        GameObject buttonObject = GameObject.Find("Course Item(Clone)");
+        Assert.IsNotNull(buttonObject, "Could not find button object");
+
+        Button button = buttonObject.GetComponent<Button>();
+        Assert.IsNotNull(button, "Button component not found on button object");
+
+        button.onClick.Invoke();
+
+        yield return new WaitForSeconds(0.2f);
+
+        Assert.AreEqual("CourseActivityScreen", SceneManager.GetActiveScene().name);
+    }
+}