package com.kodilla.testing.library;

import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import java.util.ArrayList;
import java.util.List;

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

public class UserBooksListTestSuite {

    //gdy użytkownik nie ma wypożyczonych żadnych książek,
    @Test
    public void testUserWithNoBooks() {
        // Given
        LibraryDatabase libraryDatabaseMock = mock(LibraryDatabase.class);
        BookLibrary bookLibrary = new BookLibrary(libraryDatabaseMock);
        LibraryUser libraryUser = new LibraryUser("Gorge","Sand","23432645342");
        List<Book> resultListOfBooks = new ArrayList<Book>();
        when(libraryDatabaseMock.listBooksInHandsOf(libraryUser)).thenReturn(resultListOfBooks);
        // When
        List<Book> theListOfBooks = bookLibrary.listBooksInHandsOf(libraryUser);
        // Then
        Assert.assertEquals(resultListOfBooks.size(),theListOfBooks.size());
    }

    //gdy ma wypożyczoną jedną książkę,
    @Test
    public void testUserWithOneBook() {
        // Given
        LibraryDatabase libraryDatabaseMock = mock(LibraryDatabase.class);
        BookLibrary bookLibrary = new BookLibrary(libraryDatabaseMock);
        LibraryUser libraryUser = new LibraryUser("Gorge","Sand","23432645342");
        List<Book> resultListOfBooks = new ArrayList<Book>();
        Book book1 = new Book("Secrets of Alamo", "John Smith", 2008);
        resultListOfBooks.add(book1);
        when(libraryDatabaseMock.listBooksInHandsOf(libraryUser)).thenReturn(resultListOfBooks);
        // When
        List<Book> theListOfBooks = bookLibrary.listBooksInHandsOf(libraryUser);
        // Then
        Assert.assertEquals(resultListOfBooks.size(),theListOfBooks.size());
    }

    //gdy ma wypożyczonych 5 książek.
    @Test
    public void testUserWithFiveBooks() {
        // Given
        LibraryDatabase libraryDatabaseMock = mock(LibraryDatabase.class);
        BookLibrary bookLibrary = new BookLibrary(libraryDatabaseMock);
        LibraryUser libraryUser = new LibraryUser("Gorge","Sand","23432645342");
        List<Book> resultListOfBooks = new ArrayList<Book>();
        Book book1 = new Book("Secrets of Alamo", "John Smith", 2008);
        Book book2 = new Book("Secretaries and Directors", "Dilbert Michigan", 2012);
        Book book3 = new Book("Secret life of programmers", "Steve Wolkowitz", 2016);
        Book book4 = new Book("Secrets of Java", "Ian Tenewitch", 2010);
        Book book5 = new Book("Secrets of Java", "Ian Tenewitch", 2010);
        resultListOfBooks.add(book1);
        resultListOfBooks.add(book2);
        resultListOfBooks.add(book3);
        resultListOfBooks.add(book4);
        resultListOfBooks.add(book5);
        when(libraryDatabaseMock.listBooksInHandsOf(libraryUser)).thenReturn(resultListOfBooks);
        // When
        List<Book> theListOfBooks = bookLibrary.listBooksInHandsOf(libraryUser);
        // Then
        Assert.assertEquals(resultListOfBooks.size(),theListOfBooks.size());
    }
}