Test accounts

Assets/Accounts/Scripts/ChangeUserScreen.cs

@@ -42,6 +42,7 @@ public class ChangeUserScreen : MonoBehaviour
     /// </summary>
     void Start()
     {
+        userList.Load();
         error.SetActive(false);
         DisplayUsers();
     }

Assets/Accounts/Scripts/Progress.cs

@@ -101,4 +101,14 @@ public class Progress
         // Raise an exception when key is not found
         throw new KeyNotFoundException();
     }
+
+    /// <summary>
+    /// Check whether a key is present
+    /// </summary>
+    /// <param name="key">The key to check</param>
+    /// <returns>true if a item can be found with the specified key</returns>
+    public bool Has(string key)
+    {
+        return entries.Find(x => x.key == key) != null;
+    }
 }

Assets/Accounts/Scripts/UserList.cs

@@ -19,7 +19,7 @@ public class UserList : ScriptableObject
         /// <summary>
         /// The index of the current/last logged in user in the <c>storedUsers</c> list
         /// </summary>
-        public int currentUserIndex;
+        public int currentUserIndex = -1;
 
         /// <summary>
         /// A list containing all users (which can be serialized)
@@ -43,8 +43,13 @@ public class UserList : ScriptableObject
     /// </summary>
     void OnEnable()
     {
-        PATH = $"{Application.persistentDataPath}/users.json";
-        Load();
+        // The PATH variable can be set by the testing framework,
+        // so we don't overwrite the actual userlist with test data
+        if (PATH == null)
+        {
+            PATH = $"{Application.persistentDataPath}/users.json";
+            Load();
+        }
     }
 
     /// <summary>
@@ -71,6 +76,10 @@ public class UserList : ScriptableObject
     {
         User user = CreateNewUser(name, avatar);
         storedUserList.storedUsers.Add(user);
+        if (storedUserList.storedUsers.Count == 1)
+        {
+            storedUserList.currentUserIndex = 0;
+        }
         Save();
         return user;
     }
@@ -103,6 +112,10 @@ public class UserList : ScriptableObject
     /// <returns>The current logged in user</returns>
     public User GetCurrentUser()
     {
+        if (storedUserList.storedUsers.Count == 0)
+        {
+            return null;
+        }
         return storedUserList.storedUsers[storedUserList.currentUserIndex];
     }
 
@@ -119,28 +132,46 @@ public class UserList : ScriptableObject
     /// Change the current user
     /// </summary>
     /// <param name="index">Index of the user in the userlist</param>
+    /// <exception cref="IndexOutOfRangeException"></exception>
     public void ChangeCurrentUser(int index)
     {
-        storedUserList.currentUserIndex = index;
+        if (0 <= index && index < storedUserList.storedUsers.Count)
+        {
+            storedUserList.currentUserIndex = index;
+        }
+        else
+        {
+            throw new IndexOutOfRangeException();
+        }
     }
 
     /// <summary>
     /// Change the current user
     /// </summary>
     /// <param name="user">Reference to the user in the userlist</param>
+    /// <exception cref="KeyNotFoundException"></exception>
     public void ChangeCurrentUser(User user)
     {
-        storedUserList.currentUserIndex = storedUserList.storedUsers.IndexOf(user);
+        int idx = storedUserList.storedUsers.IndexOf(user);
+        if (idx < 0)
+        {
+            throw new KeyNotFoundException();
+        }
+        storedUserList.currentUserIndex = idx;
     }
 
     /// <summary>
     /// Remove the user
     /// </summary>
     /// <param name="index">The index of the user in the userlist</param>
-    /// <returns>true if user was successful removed, false otherwise</returns>
+    /// <returns>true if user was successful removed, false otherwise</returns
     public bool DeleteUser(int index)
     {
-        return DeleteUser(storedUserList.storedUsers[index]);
+        if (0 <= index && index < storedUserList.storedUsers.Count)
+        {
+            return DeleteUser(storedUserList.storedUsers[index]);
+        }
+        return false;
     }
 
     /// <summary>
@@ -177,13 +208,14 @@ public class UserList : ScriptableObject
     /// </summary>
     public void Load()
     {
-        try
-        {
-            storedUserList.storedUsers.Clear();
+        storedUserList.storedUsers.Clear();
+        storedUserList.currentUserIndex = -1;
 
-            string text = File.ReadAllText(PATH);
-            storedUserList = JsonUtility.FromJson<StoredUserList>(text);
+        if (!File.Exists(PATH))
+        {
+            Save();
         }
-        catch (FileNotFoundException) { Debug.Log($"Path '{PATH}' not found"); }
+        string text = File.ReadAllText(PATH);
+        storedUserList = JsonUtility.FromJson<StoredUserList>(text);
     }
 }

Assets/Accounts/Scripts/UserProgressScreen.cs

@@ -112,6 +112,7 @@ public class UserProgressScreen : MonoBehaviour
     void Start()
     {
         // Assign the current user
+        userList.Load();
         user = userList.GetCurrentUser();
 
         // Set correct displayed items