TileRendererTest.java

package org.oscim.layers.tile;

import static org.fest.assertions.api.Assertions.assertThat;

import org.junit.Test;
import org.oscim.layers.tile.MapTile.TileNode;
import org.oscim.renderer.MapRenderer;

public class TileRendererTest {

	static {
		/* makes default minFadeTime == 1000 */
		MapRenderer.frametime = 1050;
	}

	static TileNode makeNode(int fadeTime, TileNode parent) {
		TileNode n = new TileNode();
		n.item = new MapTile(n, 0, 0, 0);
		n.item.fadeTime = fadeTime;

		if (parent == null) {
			// root node is its own parent
			n.parent = n;
		} else {
			parent.child00 = n;
			n.parent = parent;
		}

		return n;
	}

	@Test
	public void shouldGetMinFadeTimeOf1000() {

		TileNode r = makeNode(0, null);
		TileNode n = makeNode(0, r);

		long fadeTime = TileRenderer.getMinFade(n.item, 0);

		assertThat(fadeTime).isEqualTo(1000);
	}

	@Test
	public void shouldGetMinFadeTimeFromParent() {

		TileNode r = makeNode(100, null);
		TileNode n = makeNode(0, r);

		long fadeTime = TileRenderer.getMinFade(n.item, 0);

		assertThat(fadeTime).isEqualTo(100);
	}

	@Test
	public void shouldGetMinFadeTimeFromGrandparent() {

		TileNode r = makeNode(100, null);
		TileNode p = makeNode(200, r);
		TileNode n = makeNode(0, p);

		long fadeTime = TileRenderer.getMinFade(n.item, 0);

		assertThat(fadeTime).isEqualTo(100);
	}

	@Test
	public void shouldGetMinFadeTimeFromParentWhenParentsTimeIsLessThanGrandpasTime() {

		TileNode r = makeNode(200, null);
		TileNode p = makeNode(100, r);
		TileNode n = makeNode(0, p);

		long fadeTime = TileRenderer.getMinFade(n.item, 0);

		assertThat(fadeTime).isEqualTo(100);
	}

	@Test
	public void shouldGetMinFadeTimeFromParentForParentProxy() {

		TileNode r = makeNode(200, null);
		TileNode p = makeNode(100, r);
		TileNode n = makeNode(0, p);

		long fadeTime = TileRenderer.getMinFade(n.item, -1);

		assertThat(fadeTime).isEqualTo(100);
	}

	@Test
	public void shouldNotGetMinFadeTimeFromGradparentForParentProxy() {
		/* (as the grandparent will not be locked) */

		TileNode r = makeNode(100, null);
		TileNode p = makeNode(200, r);
		TileNode n = makeNode(0, p);

		long fadeTime = TileRenderer.getMinFade(n.item, -1);

		assertThat(fadeTime).isNotEqualTo(100);
		assertThat(fadeTime).isEqualTo(200);
	}

	@Test
	public void shouldGetMinFadeTimeFromParentForChildProxy() {

		TileNode r = makeNode(200, null);
		TileNode p = makeNode(100, r);
		TileNode n = makeNode(0, p);

		long fadeTime = TileRenderer.getMinFade(n.item, 1);

		assertThat(fadeTime).isEqualTo(100);
	}

	@Test
	public void shouldGetMinFadeTimeFromGrandparentForChildProxy() {

		TileNode r = makeNode(100, null);
		TileNode p = makeNode(200, r);
		TileNode c = makeNode(0, p);

		long fadeTime = TileRenderer.getMinFade(c.item, 1);

		assertThat(fadeTime).isEqualTo(100);
	}

	@Test
	public void shouldGetMinFadeTimeFromGrandgrandparentForChildProxy() {

		TileNode r = makeNode(100, null);
		TileNode gp = makeNode(200, r);
		TileNode p = makeNode(200, gp);
		TileNode c = makeNode(0, p);

		long fadeTime = TileRenderer.getMinFade(c.item, 1);

		assertThat(fadeTime).isEqualTo(100);
	}

	@Test
	public void shouldGetMinFadeTimeFromChild() {

		TileNode r = makeNode(100, null);
		TileNode p = makeNode(200, r);
		TileNode n = makeNode(0, p);

		n.child00 = makeNode(50, n);

		long fadeTime = TileRenderer.getMinFade(n.item, 0);

		assertThat(fadeTime).isEqualTo(50);
	}

	@Test
	public void shouldGetMinFadeTimeForParentFromChild() {

		TileNode r = makeNode(100, null);
		TileNode p = makeNode(200, r);
		TileNode n = makeNode(0, p);

		n.child00 = makeNode(50, n);

		long fadeTime = TileRenderer.getMinFade(p.item, -1);

		assertThat(fadeTime).isEqualTo(50);
	}
}