YachtDice/Assets/Scripts/Tests/Editor/SaveSystemTests.cs

using System.Collections.Generic;
using NUnit.Framework;
using UnityEngine;
using YachtDice.Persistence;

namespace YachtDice.Tests
{

public sealed class SaveSystemTests
{
    [SetUp]
    public void SetUp()
    {
        SaveSystem.Delete();
    }

    [TearDown]
    public void TearDown()
    {
        SaveSystem.Delete();
    }

    [Test]
    public void SaveAndLoad_RoundTrip_PreservesData()
    {
        var data = new SaveData
        {
            Currency = 999,
            OwnedModifiers = new List<ModifierSaveEntry>
            {
                new() { ModifierId = "mod1", IsActive = true, RemainingUses = 3 },
                new() { ModifierId = "mod2", IsActive = false, RemainingUses = -1 }
            }
        };

        SaveSystem.Save(data);
        var loaded = SaveSystem.Load();

        Assert.AreEqual(999, loaded.Currency);
        Assert.AreEqual(2, loaded.OwnedModifiers.Count);
        Assert.AreEqual("mod1", loaded.OwnedModifiers[0].ModifierId);
        Assert.IsTrue(loaded.OwnedModifiers[0].IsActive);
        Assert.AreEqual(3, loaded.OwnedModifiers[0].RemainingUses);
        Assert.AreEqual("mod2", loaded.OwnedModifiers[1].ModifierId);
        Assert.IsFalse(loaded.OwnedModifiers[1].IsActive);
    }

    [Test]
    public void Load_MissingKey_ReturnsDefault()
    {
        var loaded = SaveSystem.Load();

        Assert.IsNotNull(loaded);
        Assert.AreEqual(0, loaded.Currency);
        Assert.AreEqual(0, loaded.OwnedModifiers.Count);
    }

    [Test]
    public void HasSave_ReturnsFalseWhenEmpty()
    {
        Assert.IsFalse(SaveSystem.HasSave());
    }

    [Test]
    public void HasSave_ReturnsTrueAfterSave()
    {
        SaveSystem.Save(new SaveData { Currency = 100 });

        Assert.IsTrue(SaveSystem.HasSave());
    }

    [Test]
    public void Delete_RemovesSaveData()
    {
        SaveSystem.Save(new SaveData { Currency = 100 });
        SaveSystem.Delete();

        Assert.IsFalse(SaveSystem.HasSave());
    }

    [Test]
    public void Load_CorruptJson_ReturnsDefault()
    {
        PlayerPrefs.SetString("YachtDice_SaveData", "{invalid json!!!");
        PlayerPrefs.Save();

        var loaded = SaveSystem.Load();

        Assert.IsNotNull(loaded);
        Assert.AreEqual(0, loaded.Currency);
    }
}
}