Maui Test Providers

MauiProviders.cs

public interface IMauiProviders
{
    IDialogProvider Dialogs { get; }
    IPreferencesProvider Preferences { get; }
    IShellProvider Shell { get; }
}

public class MauiProviders : IMauiProviders
{
    public IDialogProvider Dialogs { get; protected set; }
    public IPreferencesProvider Preferences { get; protected set; }
    public IShellProvider Shell { get; protected set; }

    public MauiProviders(
        IDialogProvider dialogs, 
        IPreferencesProvider preferences, 
        IShellProvider shell)
    {
        Dialogs = dialogs;
        Preferences = preferences;
        Shell = shell;
    }
}


public interface IDialogProvider
{
    Task ShowConfirmationAsync(string title, string message, string cancel = "OK");
    Task ShowAlertAsync(string title, string message, string accept, string cancel);
    Task<string> ShowActionsAsync(string title, string message, string destruction, params string[] buttons);
    Task ToastAsync(string message, ToastDuration duration = ToastDuration.Short, double textSize = 14D);
    Task SnackBarAsync(string message, Action action = null, string actionButtonText = "OK");
}

public class DialogProvider : IDialogProvider
{
    protected readonly IShellProvider ShellProvider;

    public DialogProvider(IShellProvider shellProvider)
    {
        ShellProvider = shellProvider;
    }

    public Task ShowConfirmationAsync(string title, string message, string cancel = "OK")
    {
        return ShellProvider.Current.DisplayAlert(title, message, cancel);
    }

    public Task ShowAlertAsync(string title, string message, string accept, string cancel)
    {
        return ShellProvider.Current.DisplayAlert(title, message, accept, cancel);
    }

    public Task<string> ShowActionsAsync(string title, string message, string destruction, params string[] buttons)
    {
        return ShellProvider.Current.DisplayActionSheet(title, "Resources.CloseText", destruction, buttons);
    }

    public Task ToastAsync(string message, ToastDuration duration = ToastDuration.Short, double textSize = 14D)
    {
        return Toast.Make(message, duration, textSize).Show();
    }

    public Task SnackBarAsync(string message, Action? action = null, string actionButtonText = "OK")
    {
        return ShellProvider.Current.DisplaySnackbar(message, action, actionButtonText);
    }
}

public interface IPreferencesProvider
{
    void Clear(string key);
    bool ContainsKey(string key);
    bool ContainsKey(string key, string sharedName);
    DateTime Get(string key, DateTime defaultValue);
    DateTime Get(string key, DateTime defaultValue, string sharedName);
    string Get(string key, string defaultValue);
    int Get(string key, int defaultValue);
    int Get(string key, int defaultValue, string sharedName);
    bool Get(string key, bool defaultValue);
    long Get(string key, long defaultValue);
    long Get(string key, long defaultValue, string sharedName);
    void Remove(string key);
    void Set(string key, string value);
    void Set(string key, int value);
    void Set(string key, int value, string sharedName);
    void Set(string key, long value);
    void Set(string key, long value, string sharedName);
    void Set(string key, DateTime value);
    void Set(string key, DateTime value, string sharedName);
    void Set(string key, bool value);
    void Set(string key, bool value, string sharedName);
  }

public class PreferencesProvider : IPreferencesProvider
    {
        public void Clear(string key) 
            => Preferences.Clear(key);

        public bool ContainsKey(string key) 
            => Preferences.ContainsKey(key);

        public bool ContainsKey(string key, string sharedName) 
            => Preferences.ContainsKey(key, sharedName);

        public DateTime Get(string key, DateTime defaultValue)
            => Preferences.Get(key, defaultValue);

        public DateTime Get(string key, DateTime defaultValue, string sharedName)
            => Preferences.Get(key, defaultValue, sharedName);

        public string? Get(string key, string defaultValue) 
            => Preferences.Get(key, defaultValue);

        public int Get(string key, int defaultValue)
            => Preferences.Get(key, defaultValue);

        public int Get(string key, int defaultValue, string sharedName)
            => Preferences.Get(key, defaultValue, sharedName);

        public bool Get(string key, bool defaultValue)
            => Preferences.Get(key, defaultValue);

        public long Get(string key, long defaultValue)
            => Preferences.Get(key, defaultValue);

        public long Get(string key, long defaultValue, string sharedName)
            => Preferences.Get(key, defaultValue, sharedName);

        public void Remove(string key) 
            => Preferences.Remove(key);

        public void Set(string key, string value) 
            => Preferences.Set(key, value);

        public void Set(string key, int value)
            => Preferences.Set(key, value);

        public void Set(string key, int value, string sharedName) 
            => Preferences.Set(key, value, sharedName);

        public void Set(string key, long value)
            => Preferences.Set(key, value);

        public void Set(string key, long value, string sharedName)
            => Preferences.Set(key, value, sharedName);

        public void Set(string key, DateTime value) 
            => Preferences.Set(key, value);

        public void Set(string key, DateTime value, string sharedName)
            => Preferences.Set(key, value, sharedName);

        public void Set(string key, bool value)
            => Preferences.Set(key, value);

        public void Set(string key, bool value, string sharedName)
            => Preferences.Set(key, value, sharedName);

    }


public interface IShellProvider
{
    Shell Current { get; }
}

public class ShellProvider : IShellProvider
{
    public Shell Current => Shell.Current;
}