public void GetNameId_Can_Display_Name_And_Id() { // Arrange var nullValue = (EntityReference)null; var empty = new EntityReference(); var idOnly = new EntityReference("account", Guid.NewGuid()); var full = new EntityReference("account", Guid.NewGuid()) { Name = "Bart Simpson" }; //Assert Assert.Equal("null", nullValue.GetNameId()); Assert.Equal(Guid.Empty.ToString(), empty.GetNameId()); Assert.Equal(idOnly.Id.ToString(), idOnly.GetNameId()); Assert.Equal($"{full.Name} ({full.Id})", full.GetNameId()); Assert.Equal($"{full.Name} {full.Id}", full.GetNameId("{0} {1}")); }