Some unit tests, names and small fixes

API/Helpers/Builders/AppUserReadingProfileBuilder.cs

@@ -0,0 +1,48 @@
+using API.Entities;
+using API.Extensions;
+
+namespace API.Helpers.Builders;
+
+public class AppUserReadingProfileBuilder
+{
+    private readonly AppUserReadingProfile _profile;
+
+    public AppUserReadingProfile Build() => _profile;
+
+    public AppUserReadingProfileBuilder(int userId)
+    {
+        _profile = new AppUserReadingProfile
+        {
+            UserId = userId,
+            Series = [],
+            Libraries = [],
+        };
+    }
+
+    public AppUserReadingProfileBuilder WithSeries(Series series)
+    {
+        _profile.Series.Add(series);
+        return this;
+    }
+
+    public AppUserReadingProfileBuilder WithLibrary(Library library)
+    {
+        _profile.Libraries.Add(library);
+        return this;
+    }
+
+    public AppUserReadingProfileBuilder WithImplicit(bool b)
+    {
+        _profile.Implicit = b;
+        return this;
+    }
+
+    public AppUserReadingProfileBuilder WithName(string name)
+    {
+        _profile.Name = name;
+        _profile.NormalizedName = name.ToNormalized();
+        return this;
+    }
+
+
+}