public void FindByAuthor()
{
// Arrange
_daoMock
.Setup(mock => mock.FindWhere(It.IsAny <Expression <Func <Book, bool> > >()))
.Returns(new List <Book>());
// Act
var list = _bookManagerService.FindByAuthor(NewGuid());
// Assert
Assert.Empty(list);
_daoMock.Verify(mock => mock.FindWhere(It.IsAny <Expression <Func <Book, bool> > >()), Times.Once);
}
public ICollection <SimpleBookDto> FindByAuthor(string author)
{
return(_bookManagerService.FindByAuthor(author));
}