maraphon-app/tests/Marathon.Domain.Tests/ValueObjects/BetScopeTests.cs

using FluentAssertions;
using Marathon.Domain.ValueObjects;

namespace Marathon.Domain.Tests.ValueObjects;

public sealed class BetScopeTests
{
    [Fact]
    public void MatchScope_Singleton_IsTheSameInstance()
    {
        MatchScope.Instance.Should().BeSameAs(MatchScope.Instance);
    }

    [Fact]
    public void PeriodScope_CreatesInstance_WhenNumberIsPositive()
    {
        var scope = new PeriodScope(1);
        scope.Number.Should().Be(1);
    }

    [Theory]
    [InlineData(0)]
    [InlineData(-1)]
    [InlineData(int.MinValue)]
    public void PeriodScope_ThrowsArgumentOutOfRangeException_WhenNumberIsZeroOrNegative(int number)
    {
        var act = () => new PeriodScope(number);
        act.Should().Throw<ArgumentOutOfRangeException>()
            .WithParameterName("Number");
    }

    [Fact]
    public void BetScope_PatternMatching_WorksCorrectly()
    {
        BetScope match = MatchScope.Instance;
        BetScope period = new PeriodScope(2);

        var matchResult = match switch
        {
            MatchScope => "match",
            PeriodScope(var n) => $"period-{n}",
            _ => "other",
        };

        var periodResult = period switch
        {
            MatchScope => "match",
            PeriodScope(var n) => $"period-{n}",
            _ => "other",
        };

        matchResult.Should().Be("match");
        periodResult.Should().Be("period-2");
    }

    [Fact]
    public void PeriodScope_Equality_IsValueBased()
    {
        var a = new PeriodScope(1);
        var b = new PeriodScope(1);
        a.Should().Be(b);
    }

    [Fact]
    public void MatchScope_And_PeriodScope_AreNotEqual()
    {
        BetScope match = MatchScope.Instance;
        BetScope period = new PeriodScope(1);
        match.Should().NotBe(period);
    }
}