// <copyright file="HybridLogicalClockTests.State.cs" company="StellaOps">
// Copyright (c) StellaOps. Licensed under BUSL-1.1.
// </copyright>
using FluentAssertions;
using Xunit;

namespace StellaOps.HybridLogicalClock.Tests;

public sealed partial class HybridLogicalClockTests
{
    [Fact]
    public void Current_ReturnsLatestState()
    {
        var timeProvider = CreateTimeProvider();
        var clock = CreateClock(timeProvider);

        var tick1 = clock.Tick();
        var current1 = clock.Current;

        var tick2 = clock.Tick();
        var current2 = clock.Current;

        current1.Should().Be(tick1);
        current2.Should().Be(tick2);
    }

    [Fact]
    public void Tick_PersistsStateToStore()
    {
        var timeProvider = CreateTimeProvider();
        var stateStore = new InMemoryHlcStateStore();
        var clock = CreateClock(timeProvider, store: stateStore);

        clock.Tick();

        stateStore.GetAllStates().Count.Should().Be(1);
    }
}