public void CreateExisting_ThrowsArgumentException_WhenIdIsLessThanZero(int id)
{
// Assemble
// Act
Action createExisting = () => SharedAppSettingBuilder.CreateExisting(id);
// Assert
createExisting.Should().Throw <ArgumentException>();
}
public void CreateExisting_ReturnsKeyHolder()
{
// Assemble
// Act
var actual = SharedAppSettingBuilder.CreateExisting(Create <int>());
// Assert
actual.Should().BeAssignableTo <IKeyHolder>();
}
