public void SalaireCadrePositif(int salaire)
        {
            var fauxDataEmploye = new Mock <IDataEmploye>();

            fauxDataEmploye.Setup(x => x.EnregistrerCadre(It.IsAny <Cadre>()));

            var serviceEmploye = new ServiceEmploye(fauxDataEmploye.Object);

            var cadre = new Cadre
            {
                Nom            = "Marty",
                Prenom         = "McFly",
                DateEmbauche   = DateTime.Today,
                SalaireMensuel = salaire
            };
            var exception = Assert.ThrowsException <BusinessException>(() =>
            {
                serviceEmploye.EnregistrerCadre(cadre);
                serviceEmploye.GetSalaireCadre(1, DateTime.Parse("01/08/2018"));
            });

            Assert.AreEqual("Salaire mensuel invalide", exception.Message);
        }