GoNStepsBackBrickTest.java

/**
 * Catroid: An on-device visual programming system for Android devices
 * Copyright (C) 2010-2014 The Catrobat Team
 * (<http://developer.catrobat.org/credits>)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * An additional term exception under section 7 of the GNU Affero
 * General Public License, version 3, is available at
 * http://developer.catrobat.org/license_additional_term
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package org.catrobat.html5player.client.bricks;

import org.catrobat.html5player.client.Scene;
import org.catrobat.html5player.client.Sprite;
import org.catrobat.html5player.client.Stage;
import org.catrobat.html5player.client.bricks.GoNStepsBackBrick;
import org.catrobat.html5player.client.formulaeditor.Formula;
import org.catrobat.html5player.client.threading.CatScheduler;

import com.google.gwt.canvas.client.Canvas;
import com.google.gwt.junit.client.GWTTestCase;

public class GoNStepsBackBrickTest extends GWTTestCase {

	private Stage stage;
	private Scene scene;
	int canvasCoordinateSpaceWidth = 100;
	int canvasCoordinateSpaceHeight = 100;

	public GoNStepsBackBrickTest() {
		stage = Stage.getInstance();
		scene = Scene.get();
	}

	@Override
	public String getModuleName() {
		return "org.catrobat.html5player.html5player";
	}

	public void gwtSetUp() {
		scene.createScene(canvasCoordinateSpaceWidth, canvasCoordinateSpaceHeight);
		Canvas canvas = scene.getCanvas();
		stage.setCanvas(canvas);
	}

	public void gwtTearDown() {
		stage.setCanvas(null);
		stage.getSpriteManager().reset();
		CatScheduler.get().clear();
	}

	//--------------------------------------------------------------------------

	/**
	 *
	 */
	public void testExecutePositiveStep() {
		String frontSpriteName = "frontSpriteName";
		Sprite frontSprite = stage.getSpriteManager().getSprite(frontSpriteName, true);
		String backSpriteName = "backSpriteName";
		Sprite backSprite = stage.getSpriteManager().getSprite(backSpriteName, true);

		frontSprite.getLook().setZPosition(0);
		backSprite.getLook().setZPosition(-1);

		Formula steps = new Formula(1);

		GoNStepsBackBrick goNStepsBack = new GoNStepsBackBrick(frontSpriteName, steps);
		goNStepsBack.execute(frontSprite);

		assertEquals(frontSprite.getLook().getZPosition(), -1);
		assertEquals(backSprite.getLook().getZPosition(), 0);
	}

	/**
	 *
	 */
	public void testExecuteNegativeStep() {
		String frontSpriteName = "frontSpriteName";
		Sprite frontSprite = stage.getSpriteManager().getSprite(frontSpriteName, true);
		String backSpriteName = "backSpriteName";
		Sprite backSprite = stage.getSpriteManager().getSprite(backSpriteName, true);

		frontSprite.getLook().setZPosition(0);
		backSprite.getLook().setZPosition(-1);

		Formula steps = new Formula(-1);

		GoNStepsBackBrick goNStepsBack = new GoNStepsBackBrick(backSpriteName, steps);
		goNStepsBack.execute(backSprite);

		assertEquals(backSprite.getLook().getZPosition(), 0);
		assertEquals(frontSprite.getLook().getZPosition(), -1);
	}

	/**
	 *
	 */
	public void testMinimumLayer() {
		String spriteName = "spriteName";
		Sprite sprite = stage.getSpriteManager().getSprite(spriteName, true);

		sprite.getLook().setZPosition(Integer.MIN_VALUE+1);

		Formula steps = new Formula(1);

		GoNStepsBackBrick goNStepsBack = new GoNStepsBackBrick(spriteName, steps);
		goNStepsBack.execute(sprite);

		assertEquals(sprite.getLook().getZPosition(), Integer.MIN_VALUE+1);
	}

	public void testMaximumLayer() {
		String spriteName = "spriteName";
		Sprite sprite = stage.getSpriteManager().getSprite(spriteName, true);

		sprite.getLook().setZPosition(0);

		Formula steps = new Formula(-1);

		GoNStepsBackBrick goNStepsBack = new GoNStepsBackBrick(spriteName, steps);
		goNStepsBack.execute(sprite);

		assertEquals(sprite.getLook().getZPosition(), 0);
	}

	public void testBackground() {
		String spriteName = "spriteName";
		Sprite sprite = stage.getSpriteManager().getSprite(spriteName, true);

		sprite.getLook().setZPosition(0);
		sprite.setBackground(true);

		Formula steps = new Formula(1);

		GoNStepsBackBrick goNStepsBack = new GoNStepsBackBrick(spriteName, steps);

		assertFalse(goNStepsBack.execute(sprite));
	}

}