using System;
using FluentAssertions;
using Xunit;

namespace Light.GuardClauses.Tests.ComparableAssertions;

public static class MustNotBeLessThanOrEqualToTests
{
    [Theory]
    [InlineData(-1, 0)]
    [InlineData(0, 0)]
    [InlineData(-80, -40)]
    public static void ParameterAtOrBelowBoundary(int value, int boundary)
    {
        Action act = () => value.MustNotBeLessThanOrEqualTo(boundary, nameof(value));

        var exceptionAssertion = act.Should().Throw<ArgumentOutOfRangeException>().Which;
        exceptionAssertion.Message.Should().Contain($"{nameof(value)} must not be less than or equal to {boundary}, but it actually is {value}.");
        exceptionAssertion.ParamName.Should().BeSameAs(nameof(value));
    }

    [Theory]
    [InlineData(5L, 4L)]
    [InlineData(100L, 1L)]
    [InlineData(-87L, -90L)]
    public static void ParameterAboveBoundary(long value, long boundary)
    {
        var result = value.MustNotBeLessThanOrEqualTo(boundary, nameof(value));

        result.Should().Be(value);
    }

    [Fact]
    public static void CustomException() =>
        Test.CustomException(15, 16, (x, y, exceptionFactory) => x.MustNotBeLessThanOrEqualTo(y, exceptionFactory));

    [Fact]
    public static void CustomExceptionParameterNull() =>
        Test.CustomException((string) null,
                             "Foo",
                             (x, y, exceptionFactory) => x.MustNotBeLessThanOrEqualTo(y, exceptionFactory));

    [Fact]
    public static void NoCustomExceptionThrown() => 5.6m.MustNotBeLessThanOrEqualTo(5.1m, (_, _) => null).Should().Be(5.6m);

    [Fact]
    public static void CustomMessage() =>
        Test.CustomMessage<ArgumentOutOfRangeException>(message => 15.MustNotBeLessThanOrEqualTo(15, message: message));

    [Fact]
    public static void CustomMessageParameterNull() =>
        Test.CustomMessage<ArgumentNullException>(message => ((string) null).MustNotBeLessThanOrEqualTo("Bar", message: message));

    [Fact]
    public static void CallerArgumentExpression()
    {
        var nine = 9;

        Action act = () => nine.MustNotBeLessThanOrEqualTo(12);

        act.Should().Throw<ArgumentOutOfRangeException>()
           .WithParameterName(nameof(nine));
    }
}