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/*
* Jesse Morgan <jesterpm@u.washington.edu>
*
* TCSS 305 � Autumn 2009
* Tetris Project
* 17 November 2009
*/
package tetris.tests.board;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.junit.BeforeClass;
import org.junit.Test;
import tetris.board.TetrisBoard;
import tetris.model.IntPoint;
import tetris.piece.IPiece;
import tetris.piece.JPiece;
import tetris.piece.LPiece;
import tetris.piece.OPiece;
import tetris.piece.SPiece;
import tetris.piece.TPiece;
import tetris.piece.TetrisPiece;
import tetris.piece.ZPiece;
/**
* Test class for the tetris board.
* @author Jesse Morgan <jesterpm@u.washington.edu>
* @version 1.0 30 November 2009.
*/
public class TetrisBoardTest {
/**
* Width and Height of a Tetris piece.
*/
private static final int TETRIS_PIECE_SIZE = 4;
/**
*
*/
private static final String TEST1_FILENAME =
"tetris.tests.board.TetrisBoardTest.expected-output.txt";
/**
* The test pieces.
*/
private static final TetrisPiece[] TEST1 = {
new TPiece(0, 0),
new OPiece(2, 0),
new IPiece(5, 0).rotateLeft().translate(-1, 0),
new OPiece(5, 0),
new IPiece(0, 0).rotateLeft().translate(-1, 0),
new ZPiece(2, 0).rotateRight(),
new OPiece(7, 0),
// Bottom two lines have disappeared now.
new OPiece(0, 0),
new JPiece(1, 0).rotateLeft(),
new IPiece(6, 0),
new LPiece(4, 0).rotateRight(),
new SPiece(7, 0),
new TPiece(6, 0).rotateLeft().rotateLeft(),
// Third (5th) row has now disappeared.
new OPiece(3, 0),
new SPiece(6, 0),
new LPiece(1, 0),
new TPiece(4, 0),
new LPiece(4, 0).rotateLeft().rotateLeft(),
new ZPiece(2, 0).rotateLeft(),
new JPiece(0, 0).rotateRight(),
new IPiece(6, 0).rotateLeft().translate(-1, 0),
new LPiece(7, 0).rotateLeft().rotateLeft(),
new JPiece(7, 0).rotateRight(),
new OPiece(-1, 0), // 1 square buffer on the either side
new JPiece(1, 0).rotateLeft(),
new IPiece(3, 0),
new IPiece(7, 0).rotateLeft().translate(-1, 0),
new TPiece(7, 0).rotateLeft().rotateLeft(),
new SPiece(5, 0),
new ZPiece(5, 0).rotateLeft(),
new TPiece(4, 0),
new LPiece(4, 0).rotateLeft(),
new LPiece(4, 0)
};
/**
* The expected output of test 1.
*/
private static String my_test1_output;
/**
* This method loads the expected output into a file.
*/
@BeforeClass
public static void loadExpectedOutput() {
try {
final BufferedReader reader =
new BufferedReader(new FileReader(TEST1_FILENAME));
final StringBuilder sb = new StringBuilder();
String line;
try {
line = reader.readLine();
while (line != null) {
sb.append(line);
sb.append("\n");
line = reader.readLine();
}
my_test1_output = sb.toString();
reader.close();
} catch (final IOException the_exception) {
fail("Could not load file: " + the_exception.getMessage());
}
} catch (final FileNotFoundException the_exception) {
fail("Could not find file: " + the_exception.getMessage());
}
}
/**
* JUnit test to check that the board functions as expected.
*/
@Test
public void testTheBoard() {
final TetrisBoard tb = new TetrisBoard(TetrisBoard.STANDARD_BOARD_WIDTH,
TetrisBoard.STANDARD_BOARD_HEIGHT,
Arrays.asList(TEST1));
tb.newGame();
// Loop through game play
final int moves_per_piece = TetrisBoard.STANDARD_BOARD_HEIGHT * TETRIS_PIECE_SIZE;
for (int i = 0; i < TEST1.length * moves_per_piece && !tb.isGameOver(); i++) {
tb.progressBoard();
}
assertEquals("Tetris board output not as expected.", my_test1_output, tb.toString());
}
/**
* JUnit test for the moving functions.
*/
@Test
public void testMoves() {
final List<TetrisPiece> pieces = new ArrayList<TetrisPiece>();
pieces.add(new LPiece(-1, 0));
pieces.add(new LPiece(-1, 0));
final TetrisBoard tb = new TetrisBoard(TetrisBoard.STANDARD_BOARD_WIDTH,
TetrisBoard.STANDARD_BOARD_HEIGHT,
pieces);
tb.newGame();
final IntPoint[] points =
{new IntPoint(0, 0), new IntPoint(0, 1), new IntPoint(0, 2), new IntPoint(1, 2)};
// Test inital
checkPoints(new IntPoint(0, 0), points, tb.getTetrisBlocks());
// Test Right
tb.moveRight();
checkPoints(new IntPoint(1, 0), points, tb.getTetrisBlocks());
// Test Left
tb.moveLeft();
checkPoints(new IntPoint(1 - 1, 0), points, tb.getTetrisBlocks());
// Test Down
tb.moveDown();
checkPoints(new IntPoint(0, 1), points, tb.getTetrisBlocks());
}
/**
* Checks that an array of expected points match a List actual points.
* @param the_modifier A point to modify the other points by.
* @param the_expected The expected points.
* @param the_actual The actual points.
*/
private void checkPoints(final IntPoint the_modifier,
final IntPoint[] the_expected, final List<IntPoint> the_actual) {
assertEquals("Extraneous points on the board.", the_expected.length, the_actual.size());
for (int i = 0; i < the_expected.length; i++) {
final IntPoint modded = new IntPoint(the_expected[i].getX() + the_modifier.getX(),
the_expected[i].getY() + the_modifier.getY());
assertTrue("Missing a point.", the_actual.contains(modded));
}
}
}
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