Fixture Class

AreaTest.cs

using Areas.Entity;
using Xunit;

namespace AreasTest
{
    public class AreaFixture
    {
        public Area Area => new();
    }
    public class AreasTest : IClassFixture<AreaFixture>
    {
        private readonly AreaFixture _areaFixture;
        public AreasTest(AreaFixture areaFixture)
        {
            _areaFixture = areaFixture;
        }
        [Fact]
        public void TesteAreaDoQuadrado()
        {
            Area area = _areaFixture.Area;
            int result = area.Quadrado(5);
            Assert.Equal(25, result);
        }

        [Fact]
        public void TesteAreaDoTriangulo()
        {
            Area area = _areaFixture.Area;
            int result = area.Triangulo(10, 5);
            Assert.Equal(25, result);
        }

        [Fact]
        public void TesteAreaDoRetangulo()
        {
            Area area = _areaFixture.Area;
            int result = area.Retangulo(5, 3);
            Assert.Equal(15, result);
        }
    }
}