import junit.framework.TestCase;
import files.*;


public class TestR2_Folder extends TestCase {

  public TestR2_Folder(String arg0) {
    super(arg0);
  }
  
  Computer pc;
  HardDisk hdc;

  public void setUp(){
		pc = new Computer();
		pc.add(new HardDisk(10 * HardDisk.GB));
		hdc = pc.getDisk('C');
  }

  public void testFormat(){
		// Formatta e crea il folder principale
		// che occupa 5KB
		hdc.format();
		assertEquals(10 * HardDisk.GB - 5 * HardDisk.KB, hdc.getAvailable());

		Folder radice = hdc.getFolder("/");
		assertTrue(radice != null);
  }
  
  public void testCreaFolder() throws FolderAlreadyExisting{
		hdc.format();
		Folder radice = hdc.getFolder("/");
		assertTrue(radice != null);

		radice.addFolder(new Folder("windows"));
		radice.addFolder(new Folder("programmi"));

		Folder win = hdc.getFolder("/windows");
		win.addFolder(new Folder("system"));
		assertSame(radice,win.getFather());
		Folder systemA = hdc.getFolder("/windows/system");
		Folder systemB = radice.getSubFolder("windows").getSubFolder("system");
		assertSame(systemA, systemB);
		
  }
  
  public void testEccezione() throws FolderAlreadyExisting{
		hdc.format();
		Folder radice = hdc.getFolder("/");
		radice.addFolder(new Folder("windows"));
		try {
			radice.addFolder(new Folder("windows"));
			fail("Il folder windows esiste gia'");
		} catch (FolderAlreadyExisting e) {
			assertTrue(true); // ok 
		}
  }
}