public void Constructor_Should_WorkCorrectly_IfDbContextPassedIsValid()
{
// Arrange
var mockedDbContext = new Mock <ILibrarySystemEfDbContext>();
var mockedModel = new Mock <DbSet <IBook> >();
// Act
mockedDbContext.Setup(x => x.Set <IBook>()).Returns(mockedModel.Object);
var mockedDbSet = new LibrarySystemEfWrapper <IBook>(mockedDbContext.Object);
// Assert
Assert.That(mockedDbSet, Is.Not.Null);
}
public void Throw_NullReferenceException_WhenPassedArgumentIsNull()
{
// Arrange
var contextMock = new Mock <ILibrarySystemEfDbContext>();
var setMock = new Mock <DbSet <IBook> >();
// Act
contextMock.Setup(set => set.Set <IBook>()).Returns(setMock.Object);
var dbSetMock = new LibrarySystemEfWrapper <IBook>(contextMock.Object);
IBook entity = null;
// Assert
Assert.That(() => dbSetMock.Add(entity),
Throws.InstanceOf <NullReferenceException>());
}
public void Throw_NullReferenceException_WhenPassetParameterIsNull()
{
// Arrange
var dbContextMock = new Mock <ILibrarySystemEfDbContext>();
var setMock = new Mock <DbSet <IBook> >();
// Act
dbContextMock.Setup(x => x.Set <IBook>()).Returns(setMock.Object);
var dbSetMock = new LibrarySystemEfWrapper <IBook>(dbContextMock.Object);
IBook entity = null;
// Assert
Assert.That(() => dbSetMock.Update(entity),
Throws.InstanceOf <NullReferenceException>());
}
public void ReturnEntitiesOfGivenSet()
{
// Arrange
var dbContextMock = new Mock <ILibrarySystemEfDbContext>();
var setMock = new Mock <DbSet <IBook> >();
// Act
dbContextMock.Setup(x => x.Set <IBook>()).Returns(setMock.Object);
var dbSetMock = new LibrarySystemEfWrapper <IBook>(dbContextMock.Object);
// Assert
Assert.IsNotNull(dbSetMock.All());
Assert.IsInstanceOf(typeof(DbSet <IBook>), dbSetMock.All());
Assert.AreSame(dbSetMock.All(), dbSetMock.DbSet);
}
public void ReturnCorrectResult_WhenParameterIsValid()
{
// Arrange
var id = Guid.NewGuid();
var setMock = new Mock <DbSet <IBook> >();
var dbContextMock = new Mock <ILibrarySystemEfDbContext>();
var bookMock = new Mock <IBook>();
// Act
dbContextMock.Setup(x => x.Set <IBook>()).Returns(setMock.Object);
var dbSetMock = new LibrarySystemEfWrapper <IBook>(dbContextMock.Object);
setMock.Setup(x => x.Find(It.IsAny <Guid>())).Returns(bookMock.Object);
// Assert
Assert.That(dbSetMock.GetById(id), Is.Not.Null);
Assert.AreEqual(dbSetMock.GetById(id), bookMock.Object);
}
