public void Exams_Controller_Test_On_Delete_Confirmed_With_Existent_Id()
{
//Arrange
Guid id = new Guid("f616cc8c-2223-4145-b7d0-232a1f6f0795");
string title = "TestT";
string observations = "TestF";
DateTime dateStart = DateTime.Now;
DateTime dateEnd = DateTime.Now.AddDays(1);
Exam expectedExams = new Exam(title, observations, dateStart, dateEnd);
expectedExams.Id = id;
var repo = Substitute.For <IRepository>();
var sut = new ExamsController(repo);
repo.GetById <Exam>(id).Returns(expectedExams);
//Act
var actual = sut.DeleteConfirmed(id).Result;
//Assert
Assert.IsInstanceOfType(actual, typeof(RedirectToActionResult));
}