import AssociationList;
import SimpleOutput;

/**
 * Test association lists.  Takes advantage of some prior knowledge
 * about the magical "populate" method.
 *
 * @author Samuel A. Rebelsky
 * @version 1.0 of November 1999
 */
public class ALTester {
  
  // +--------+--------------------------------------------------
  // | Fields |
  // +--------+

  /** The association list we're testing. */
  AssociationList testme;
  /** Something to generate output with. */
  SimpleOutput out;

  // +--------------+--------------------------------------------
  // | Constructors |
  // +--------------+

  public ALTester() {
    // Prepare to generate output.
    out = new SimpleOutput();
    // Set up the associatoin list.
    testme = new AssociationList();
    // Set up a sample set of key/value pairs for testing.
    testme.populate();
    // Look up a few names that are already there.  We check all
    // of them so that we hit all the positions.
    lookup("Joshua Vickery");
    lookup("Sierra Soleil");
    lookup("Kate Ducey");
    lookup("Wanlin Liu");
    // Capitalization should matter.
    lookup("joshua vickery");
    // Here's a name that's not there.
    lookup("sam rebelsky");
    // Add it.
    add("sam rebelsky", "CS");
    // Now it should be there.
    lookup("sam rebelsky");
    // Change Josh
    add("Joshua Vickery", "CS");
    lookup("Joshua Vickery");
    out.println("Final list: " + testme.toString());
  } // ALTester()

  // +---------+-------------------------------------------------
  // | Methods |
  // +---------+

  /** Look up a name in the association list. */
  public void lookup(Object key) {
    out.print("Looking up '" + key + "': ");
    try {
      out.println(testme.get(key));
    }
    catch (Exception e) {
      out.println("FAILED");
    }
  } // lookup(Object)

  /** Add a key/value pair to the list. */
  public void add(Object key, Object value) {
    out.print("Adding key: '" + key + "', value: '" + value + "' ...");
    try { 
      testme.put(key,value); 
      out.println("OK");
    }
    catch (Exception e) {
      out.println("FAILED");
    }
  } // add(Object,Object)  

  // +------+----------------------------------------------------
  // | Main |
  // +------+

  /** Test away. */
  public static void main(String[] args) {
    new ALTester();
  } // main(String[])
} // class ALTester