Exemplo n.º 1
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  /** Tests the 4-move solution to the water jug problem */
  @Test
  public void testSolution1() {
    assertFalse(problem.success());
    tryMove(m1);

    assertFalse(problem.success());
    tryMove(m5);

    assertFalse(problem.success());
    tryMove(m1);

    assertFalse(problem.success());
    tryMove(m5);
    assertTrue(problem.success());
  }
Exemplo n.º 2
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 /** Tests the problem's introduction string. */
 @Test
 public void testIntro() {
   assertTrue(
       problem
           .getIntroduction()
           .equals(
               "Welcome to the Water Jug Problem.\n\n"
                   + "You are given two empty jugs: jug X holds 3 gallons, jug y holds 4.\n"
                   + "Neither has any measuring markers on it. You have a ready supply\n"
                   + "of water. You can fill either jug, empty either jug on the ground,\n"
                   + "or pour all or some of either jug into the other. The goal is to \n"
                   + "get exactly 2 gallons into either jug.\n\n"
                   + "Here is your initial state:\n"));
 }
Exemplo n.º 3
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  /** Tests the 6-move solution to the water jug problem */
  @Test
  public void testSolution2() {
    assertFalse(problem.success());
    tryMove(m2);

    assertFalse(problem.success());
    tryMove(m6);

    assertFalse(problem.success());
    tryMove(m3);

    assertFalse(problem.success());
    tryMove(m6);

    assertFalse(problem.success());
    tryMove(m2);

    assertFalse(problem.success());
    tryMove(m6);

    assertTrue(problem.success());
  }
Exemplo n.º 4
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 private void tryMove(Move move) {
   State state = problem.getCurrentState();
   State next = move.doMove(state);
   problem.setCurrentState(next);
 }
Exemplo n.º 5
0
/**
 * A class to test the WaterJugProblem class. You should use the BridgeProblemTest class as a model.
 *
 * @author your name here
 */
public class WaterJugProblemTest {

  // You should use the BridgeProblemTest class as a model for setting up
  // the tests with private instance fields and methods here.
  private Problem problem = new WaterJugProblem();
  private List<Move> moves = problem.getMoves();

  private Move findMove(String moveName) {
    for (Move move : moves) {
      if (move.getMoveName().equals(moveName)) {
        return move;
      }
    }
    return null;
  }

  /** Initialize the moves */
  Move m1 = findMove("Fill Jug X");

  Move m2 = findMove("Fill Jug Y");
  Move m3 = findMove("Empty Jug X");
  Move m4 = findMove("Empty Jug Y");
  Move m5 = findMove("Transfer Jug X to Jug Y");
  Move m6 = findMove("Transfer Jug Y to Jug X");

  private void tryMove(Move move) {
    State state = problem.getCurrentState();
    State next = move.doMove(state);
    problem.setCurrentState(next);
  }

  /** Tests to be sure the problem represents all the moves. */
  @Test
  public void testMoves() {
    assertTrue(m1 != null);
    assertTrue(m2 != null);
    assertTrue(m3 != null);
    assertTrue(m4 != null);
    assertTrue(m5 != null);
    assertTrue(m6 != null);
  }

  /** Tests the 4-move solution to the water jug problem */
  @Test
  public void testSolution1() {
    assertFalse(problem.success());
    tryMove(m1);

    assertFalse(problem.success());
    tryMove(m5);

    assertFalse(problem.success());
    tryMove(m1);

    assertFalse(problem.success());
    tryMove(m5);
    assertTrue(problem.success());
  }

  /** Tests the 6-move solution to the water jug problem */
  @Test
  public void testSolution2() {
    assertFalse(problem.success());
    tryMove(m2);

    assertFalse(problem.success());
    tryMove(m6);

    assertFalse(problem.success());
    tryMove(m3);

    assertFalse(problem.success());
    tryMove(m6);

    assertFalse(problem.success());
    tryMove(m2);

    assertFalse(problem.success());
    tryMove(m6);

    assertTrue(problem.success());
  }

  /** Tests the problem's introduction string. */
  @Test
  public void testIntro() {
    assertTrue(
        problem
            .getIntroduction()
            .equals(
                "Welcome to the Water Jug Problem.\n\n"
                    + "You are given two empty jugs: jug X holds 3 gallons, jug y holds 4.\n"
                    + "Neither has any measuring markers on it. You have a ready supply\n"
                    + "of water. You can fill either jug, empty either jug on the ground,\n"
                    + "or pour all or some of either jug into the other. The goal is to \n"
                    + "get exactly 2 gallons into either jug.\n\n"
                    + "Here is your initial state:\n"));
  }
}