public void Constructor_ThrowsArgumentNullException_NullTableLoader()
{
ISalesDataTableLoader loader = null;
var path = Fixture.Create <string>();
Assert.Throws <ArgumentNullException>(() => new SalesTableFactory(loader, path));
}
/// <summary>
/// Constructs and instance of the <see cref="SalesTableFactory"/> class
/// </summary>
/// <param name="tableLoader">class used to load table</param>
/// <param name="filepath">source file path</param>
public SalesTableFactory(ISalesDataTableLoader tableLoader, string filepath)
{
_filepath = !string.IsNullOrWhiteSpace(filepath) ? filepath : throw new ArgumentNullException(nameof(filepath));
_tableLoader = tableLoader ?? throw new ArgumentNullException(nameof(tableLoader));
}