package Lab4_persistent_data;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import java.io.File;
import java.util.ArrayList;
import org.junit.Before;
import org.junit.Test;
/**
* Some basic tests for the Book Collection class.
*/
public class BookCollectionTest {
private BookCollection collection;
@Before
public void createCollection() {
// Create a new collection
ArrayList
books.add(new Book(“Thinking in Java (4th ed.)”, “Eckel, Bruce”, 2006, BookGenre.NON_FICTION));
books.add(new Book(“The Ultimate Hitchhiker’s Guide to the Galaxy”, “Adams, Douglas”, 1979,
BookGenre.FICTION_COMEDY));
books.add(new Book(“The Hobbit”, “Tolkien, J.R.R.”, 1937, BookGenre.FICTION_FANTASY));
this.collection = new BookCollection(books);
}
@Test(timeout=1000)
public void testBespoke() throws Exception {
// Save it to the specified file.
File file = new File(“my_book_collection.bin”);
// Ensure that there is nothing there right now:
file.delete();
this.collection.saveToBespokeFile(file);
// Load it from the specified file.
BookCollection comparisonCollection = BookCollection.loadFromBespokeFile(file);
compareCollections(this.collection, comparisonCollection);
// Delete file after test
file.delete();
}
@Test(timeout=1000)
public void testJSON() throws Exception {
// Save it to the specified file.
File file = new File(“my_book_collection.json”);
// Ensure that there is nothing there right now:
file.delete();
this.collection.saveToJSONFile(file);
// Load it from the specified file.
BookCollection comparisonCollection = BookCollection.loadFromJSONFile(file);
compareCollections(this.collection, comparisonCollection);
// Delete file after test
// file.delete();
}
@Test(timeout=1000)
public void testXML() throws Exception {
// Save it to the specified file.
File file = new File(“my_book_collection.xml”);
// Ensure that there is nothing there right now:
file.delete();
this.collection.saveToXMLFile(file);
// Load it from the specified file.
BookCollection comparisonCollection = BookCollection.loadFromXMLFile(file);
compareCollections(this.collection, comparisonCollection);
// Delete file after test
file.delete();
}
/**
* Checks that two collections are identical.
*
* @param goodCollection The known good collection.
* @param comparisonCollection The potentially bad collection.
*/
private static void compareCollections(BookCollection goodCollection, BookCollection comparisonCollection) {
assertNotNull(goodCollection);
assertNotNull(comparisonCollection);
// Check that they are of the same length
assertEquals(goodCollection.getList().size(), comparisonCollection.getList().size());
// Check that the fields of each book match
for (int i = 0; i < comparisonCollection.getList().size(); i++) {
Book knownGoodBook = goodCollection.getList().get(i);
Book loadedBook = comparisonCollection.getList().get(i);
assertEquals(knownGoodBook, loadedBook);
}
}
}