ResultMethodsTests.cs

using FluentAssertions;
using Xunit;
using static ResultSharp.Prelude;

namespace ResultSharp.Tests;

public class ResultMethodsTests
{
    [Fact]
    public void OkIf_TrueCondition_ReturnsOkResult()
    {
        var expected = Ok(10);
        var actual = Result.OkIf(true, 10, "foo");

        actual.Should().Be(expected);
    }

    [Fact]
    public void ErrIf_TrueCondition_ReturnsFaultedResult()
    {
        var expected = Err("foo");
        var actual = Result.ErrIf(true, 0, "foo");

        actual.Should().Be(expected);
    }

    [Fact]
    public void OkIf_TrueConditionWithNonStringErrType_ReturnsOkResult()
    {
        var expected = Ok("foo");
        var actual = Result.OkIf(true, "foo", -1);

        actual.Should().Be(expected);
    }

    [Fact]
    public void ErrIf_TrueConditionWithNonStringErrType_ReturnsFaultedResult()
    {
        var expected = Err(-1);
        var actual = Result.ErrIf(true, "foo", -1);

        actual.Should().Be(expected);
    }

    [Fact]
    public void OkIf_TrueConditionWithoutOkValue_ReturnsOkResult()
    {
        var expected = Result.Ok();
        var actual = Result.OkIf(true, "foo");

        actual.Should().Be(expected);
    }

    [Fact]
    public void ErrIf_TrueConditionWithoutOkValue_ReturnsFaultedResult()
    {
        var expected = Result.Err("foo");
        var actual = Result.ErrIf(true, "foo");

        actual.Should().Be(expected);
    }
}