import junit.framework.*;
import java.io.*;

// NOTE: This Test class depends on certain webpages at a
// specific URLs remaining static.  This is, of course,
// impossible, as those webpages may change or the server the
// web pages are hosted on may go offline.

public class RemoteGetFileHandlerTestCase extends TestCase {
  // declare these here for convenience
  private RemoteGetFileHandler testRGFH;
  private String testURL1, testURL2;
  private boolean bool;
  // following variables are used to calculate if the *number* of
  // characters returned is correct (since testing for the exact
  // string returned will make things messy)
  private int testHTMLSize1, testHTMLSize2;
  
  public RemoteGetFileHandlerTestCase(String name) {
    super (name);
  }
  
  protected void setUp() {
    testRGFH = new RemoteGetFileHandler(HandlerOrder.NO_PREFERENCE);
    // NOTE: The pages at testURL1 and testURL2 could possibly change
    // and cause this Test class to fail.
    testURL1 = "homepage.cs.uri.edu/courses/cscamp/contest1.html";
    testHTMLSize1 = 888;
    testURL2 = "www.cs.umd.edu/class/fall2001/cmsc106/index.html";
    testHTMLSize2 = 5979;
  }

  protected void tearDown() {
  }
  
  public void testCompareTo() {
    RemoteGetFileHandler tmpRGFH1 = new RemoteGetFileHandler(HandlerOrder.EARLY);
    RemoteGetFileHandler tmpRGFH2 = new RemoteGetFileHandler(HandlerOrder.NO_PREFERENCE);
    RemoteGetFileHandler tmpRGFH3 = new RemoteGetFileHandler(HandlerOrder.LATE);
    assertTrue(testRGFH.compareTo(tmpRGFH1) > 0);
    assertTrue(testRGFH.compareTo(tmpRGFH2) == 0);
    assertTrue(testRGFH.compareTo(tmpRGFH3) < 0);
  }

  public void testIsExclusive() {
    assertTrue(testRGFH.isExclusive());
  }

  public void testMatchRequest() {
    HttpRequest req = new HttpGetRequestSimple("blah", "HTTP/1.1" ,"GET");
    assertTrue(!(testRGFH.matchRequest(req)));

    req = new HttpGetRequestSimple("getFile/", "HTTP/1.1" ,"GET");
    assertTrue(!(testRGFH.matchRequest(req)));
    
    req = new HttpGetRequestSimple("remoteGetFile/.*", "HTTP/1.1" ,"GET");
    assertTrue((testRGFH.matchRequest(req)));
    
    req = new HttpGetRequestSimple("remoteGetFile/", "HTTP/1.1" ,"GET");
    assertTrue((testRGFH.matchRequest(req)));

    req = new HttpGetRequestSimple("remoteGetFile/ravens.html", "HTTP/1.1" ,"GET");
    assertTrue((testRGFH.matchRequest(req)));
    
    req = new HttpGetRequestSimple("remoteGetFile/www.cnn.com/news.html", "HTTP/1.1" ,"GET");
    assertTrue((testRGFH.matchRequest(req)));
    
    req = new HttpGetRequestSimple("remoteGetFile/http://slashdot.org", "HTTP/1.1" ,"GET");
    assertTrue((testRGFH.matchRequest(req)));
    
    req = new HttpGetRequestSimple("/remoteGetFile/ravens.html", "HTTP/1.1" ,"GET");
    assertTrue(!(testRGFH.matchRequest(req)));

    req = new HttpGetRequestSimple("remotegetfile/ravens.html", "HTTP/1.1" ,"GET");
    assertTrue(!(testRGFH.matchRequest(req)));
  }

  public void testHandleRequest() {

    HttpRequest req = new HttpGetRequestSimple("blah", "HTTP/1.1" ,"GET");
    StringBuffer tmpSB = new StringBuffer();
    try {
      assertTrue(!(testRGFH.handleRequest(req, tmpSB)));
    } catch (HandlerException e) { }
    assertTrue(tmpSB.toString().equals(""));    

    tmpSB = new StringBuffer();
    req = new HttpGetRequestSimple("remoteGetFile/" + testURL1, "HTTP/1.1" ,"GET");
    try {
      assertTrue(testRGFH.handleRequest(req, tmpSB));
    } catch (HandlerException e) { assertTrue(false); }
    assertTrue(tmpSB.toString().length() == testHTMLSize1);

    tmpSB = new StringBuffer();
    req = new HttpGetRequestSimple("remoteGetFile/" + testURL2, "HTTP/1.1" ,"GET");
    try {
      assertTrue(testRGFH.handleRequest(req, tmpSB));
    } catch (HandlerException e) { assertTrue(false); }
    assertTrue(tmpSB.toString().length() == testHTMLSize2);

    tmpSB = new StringBuffer();
    req = new HttpGetRequestSimple("remoteGetFile/index.html", "HTTP/1.1" ,"GET");
    bool = false;
    try {
      assertTrue(testRGFH.handleRequest(req, tmpSB));
    } catch (HandlerException e) { bool = true; }
    assertTrue(bool);
    assertTrue(tmpSB.toString().equals(""));

    tmpSB = new StringBuffer();
    req = new HttpGetRequestSimple("remoteGetFile/", "HTTP/1.1" ,"GET");
    bool = false;
    try {
      assertTrue(testRGFH.handleRequest(req, tmpSB));
    } catch (HandlerException e) { bool = true; }
    assertTrue(bool);
    assertTrue(tmpSB.toString().equals(""));
    
    tmpSB = new StringBuffer();
    req = new HttpGetRequestSimple("remoteGetFile/http://" + testURL1, "HTTP/1.1" ,"GET");
    bool = false;
    try {
      assertTrue(testRGFH.handleRequest(req, tmpSB));
    } catch (HandlerException e) { bool = true; }
    assertTrue(bool);
    assertTrue(tmpSB.toString().equals(""));    
  }
  
  public static Test suite() { 
    return new TestSuite(RemoteGetFileHandlerTestCase.class); 
  }
  public static void main(String args[]) { 
    junit.textui.TestRunner.run(suite());
  }
}