public void InitTest()
{
Assert.IsNull(_dataLayer.DataFiller);
Assert.AreEqual(0, _dataLayer.GetAllAuthors().Count());
Assert.AreEqual(0, _dataLayer.GetAllBooks().Count());
Assert.AreEqual(0, _dataLayer.GetAllCopiesOfBook().Count());
Assert.AreEqual(0, _dataLayer.GetAllReaders().Count());
Assert.AreEqual(0, _dataLayer.GetAllEmployees().Count());
Assert.AreEqual(0, _dataLayer.GetAllEvents().Count());
}
public void DependencyInjectionTest()
{
//Checking DataFiller property is null
_dataLayer = new LibraryRepository();
Assert.AreEqual(_dataLayer.DataFiller, null);
_dataLayer.FillData();
Assert.AreEqual(0, _dataLayer.GetAllAuthors().Count());
Assert.AreEqual(0, _dataLayer.GetAllBooks().Count());
Assert.AreEqual(0, _dataLayer.GetAllReaders().Count());
Assert.AreEqual(0, _dataLayer.GetAllEmployees().Count());
Assert.AreEqual(0, _dataLayer.GetAllCopiesOfBook().Count());
Assert.AreEqual(0, _dataLayer.GetAllEvents().Count());
//Inject IDataFiller impelentation (Fill with Consts)
ConstObjectsFiller cof = new ConstObjectsFiller();
_dataLayer.DataFiller = cof;
_dataLayer.FillData();
Assert.AreEqual(2, _dataLayer.GetAllAuthors().Count());
Assert.AreEqual(3, _dataLayer.GetAllBooks().Count());
Assert.AreEqual(1, _dataLayer.GetAllReaders().Count());
Assert.AreEqual(1, _dataLayer.GetAllEmployees().Count());
Assert.AreEqual(5, _dataLayer.GetAllCopiesOfBook().Count());
Assert.AreEqual(1, _dataLayer.GetAllEvents().Count());
//Inject IDatafiller implementation (Fill from Xml)
XmlFileFiller xml = new XmlFileFiller();
_dataLayer = new LibraryRepository();
_dataLayer.DataFiller = xml;
_dataLayer.FillData();
Assert.AreEqual(2, _dataLayer.GetAllAuthors().Count());
Assert.AreEqual(1, _dataLayer.GetAllBooks().Count());
Assert.AreEqual(1, _dataLayer.GetAllReaders().Count());
Assert.AreEqual(1, _dataLayer.GetAllEmployees().Count());
Assert.AreEqual(1, _dataLayer.GetAllCopiesOfBook().Count());
Assert.AreEqual(1, _dataLayer.GetAllEvents().Count());
TxtFileFiller txt = new TxtFileFiller();
_dataLayer = new LibraryRepository();
_dataLayer.DataFiller = txt;
_dataLayer.FillData();
Assert.AreEqual(2, _dataLayer.GetAllAuthors().Count());
Assert.AreEqual(1, _dataLayer.GetAllBooks().Count());
Assert.AreEqual(1, _dataLayer.GetAllReaders().Count());
Assert.AreEqual(1, _dataLayer.GetAllEmployees().Count());
Assert.AreEqual(1, _dataLayer.GetAllCopiesOfBook().Count());
Assert.AreEqual(1, _dataLayer.GetAllEvents().Count());
}