bookstore/UnitTestProject1/UnitTest1.cs

using System;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using boo;
using System.Linq;

namespace UnitTestProject1
{
    [TestClass]
    public class UnitTest1
    {
        BookStoreContext _context = new BookStoreContext();

        [TestMethod]
        public void TestMethod1()
        {
            var page = new MainWindow();

            string name, price, category, author;
            int exp, res;

            //1
            name = "Обещание";
            author = "Юрайан Кониецко";
            price = "550";
            category = "Комикс";

            exp = _context.Books.Where(b => b.Name == name && b.Price == 550 && b.Author == author && b.Category == category).Count() + 1;

            Assert.IsTrue(page.InsertBook(name, price, author, category));

            res = _context.Books.Where(b => b.Name == name && b.Price == 550 && b.Author == author && b.Category == category).Count();
            Assert.AreEqual(exp, res);

            Books book = _context.Books.Where(b => b.Name == name && b.Price == 550 && b.Author == author && b.Category == category).FirstOrDefault();
            _context.Books.Remove(book);
            _context.SaveChanges();

            //2
            name = "";
            author = "";
            price = "";
            category = "";

            exp = _context.Books.Count();

            Assert.IsFalse(page.InsertBook(name, price, author, category));

            res = _context.Books.Count();
            Assert.AreEqual(exp, res);
        }
    }
}