--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Library/LibrarySystem.Tests/LibrarySystemTests.cs	Tue Apr 03 23:29:32 2012 +0100
@@ -0,0 +1,204 @@
+using LibrarySystem.Core;
+using LibrarySystem.Interfaces;
+using NUnit.Framework;
+
+namespace LibrarySystem.Tests
+{
+    [TestFixture]
+    public class LibraryTests
+    {
+        /*
+         * Factory that creates:
+         *      Library with 10 books (2 x Lord of the Flies, 3 x 1984, 5 x Brave New World)
+        */
+        private ILibrary CreateScenario()
+        {
+            #region Publisher
+
+            IPublisher penguin = new Publisher() {Name = "Penguin"};
+            
+            #endregion
+
+            #region Publications
+
+            IPublication lordOfTheFlies = new Publication()
+            {
+                Author = "William Golding",
+                ISBN = "0140283331",
+                Publisher = penguin,
+                Title = "Lord of the Flies"
+            };
+
+            IPublication nineteenEightyFour = new Publication()
+            {
+                Author = "George Orwell",
+                ISBN = "0452284236",
+                Title = "Nineteen Eighty-Four"
+            };
+
+            IPublication braveNewWorld = new Publication()
+            {
+                Author = "Aldous Huxley",
+                ISBN = "0060850523",
+                Title = "Brave New World"
+            };
+
+            #endregion
+
+            #region Books
+
+            // Lord of the flies
+            IBook book1 = new Book(lordOfTheFlies)
+                {Id = "0000001", CurrentFee = 1.25m};
+            IBook book2 = new Book(lordOfTheFlies)
+                {Id = "0000002", CurrentFee = 1.25m};
+            IBook book3 = new Book(lordOfTheFlies)
+                {Id = "0000003", CurrentFee = 1.25m};
+
+            // 1984
+            IBook book4 = new Book(nineteenEightyFour)
+                {Id = "0000004", CurrentFee = 1.5m};
+            IBook book5 = new Book(nineteenEightyFour)
+                {Id = "0000005", CurrentFee = 1.5m};
+
+            // Brave new world
+            IBook book6 = new Book(braveNewWorld)
+                {Id = "0000006", CurrentFee = 1.8m};
+            IBook book7 = new Book(braveNewWorld)
+                {Id = "0000007", CurrentFee = 1.8m};
+            IBook book8 = new Book(braveNewWorld)
+                {Id = "0000008", CurrentFee = 1.8m};
+            IBook book9 = new Book(braveNewWorld)
+                {Id = "0000009", CurrentFee = 1.8m};
+            IBook book10 = new Book(braveNewWorld)
+                {Id = "0000010", CurrentFee = 1.8m};
+
+            #endregion
+            
+            #region Library
+
+            ILibrary library = new Library();
+            library.Location = "Leicester Square";
+            library.AddStock(book1, book2, book3, book4, book5, book6, book7, book8, book9, book10);
+
+            #endregion
+
+            return library;
+        }
+
+        [Test]
+        public void AddStockShouldIncreaseStockListCountByOne()
+        {
+            //arrange
+            var library = new Library();
+            var expected = library.StockList.Count + 1;
+            var dummyBook = new Book(new Publication());
+
+            //act
+            library.AddStock(dummyBook);
+            var actual = library.StockList.Count;
+
+            //assert
+            Assert.AreEqual(expected, actual);
+        }
+
+        [Test]
+        public void SearchForAvailableBookByIBSNShouldReturnTrue()
+        {
+            var library = CreateScenario();
+
+            // Lord of the flies
+            var validISBN = "0140283331";
+
+            var actual = library.IsBookAvailableByISBN(validISBN);
+
+            Assert.IsTrue(actual);
+        }
+
+        [Test]
+        public void SearchForUnavailableBookByIBSNShouldReturnFalse()
+        {
+            var library = CreateScenario();
+
+            // rubbish data
+            var invalidISBN = "X";
+
+            var actual = library.IsBookAvailableByISBN(invalidISBN);
+
+            Assert.IsFalse(actual);
+        }
+
+        [Test]
+        public void FindBooksByValidSearchTitleString()
+        {
+            var library = CreateScenario();
+
+            // good search string
+            var searchString = "Flies";
+
+            // number of Lord of the Flies books expected
+            var expected = 3;
+            var actual = library.FindBooks(searchString).Count;
+
+            Assert.AreEqual(expected, actual);
+        }
+
+
+        [Test]
+        public void FindBooksByValidSearchTitleStringLowerCase()
+        {
+            var library = CreateScenario();
+
+            // good search string
+            var searchString = "flies";
+
+            // number of Lord of the Flies books expected
+            var expected = 3;
+            var actual = library.FindBooks(searchString).Count;
+
+            Assert.AreEqual(expected, actual);
+        }
+
+        [Test]
+        public void FindBooksByValidSearchStringMultiplePublications()
+        {
+            var library = CreateScenario();
+
+            // good search string
+            var searchString = "e";
+
+            // number of Lord of the Flies books expected
+            var expected = 10;
+            var actual = library.FindBooks(searchString).Count;
+
+            Assert.AreEqual(expected, actual);
+        }
+
+        [Test]
+        public void FindBooksByValidSearchAuthorString()
+        {
+            var library = CreateScenario();
+
+            // number of Brave New World books expected
+            var expected = 5;
+            var searchString = "ldous";
+
+            var actual = library.FindBooks(searchString).Count;
+
+            Assert.AreEqual(expected, actual);
+        }
+
+        [Test]
+        public void FindBooksByInvalidSearchString()
+        {
+            var library = CreateScenario();
+
+            // rubbish data
+            var searchString = "XYZ";
+
+            var actual = library.FindBooks(searchString);
+
+            Assert.IsEmpty(actual);            
+        }
+    }
+}