Add AStarPathFinderTests.

litiengine/src/test/java/de/gurkenlabs/litiengine/entities/behavior/AStarPathFinderTests.java

@@ -0,0 +1,87 @@
+package de.gurkenlabs.litiengine.entities.behavior;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+import de.gurkenlabs.litiengine.entities.IMobileEntity;
+import de.gurkenlabs.litiengine.environment.tilemap.IMap;
+import java.awt.Dimension;
+import java.awt.geom.Point2D;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+
+class AStarPathFinderTests {
+  private AStarPathFinder pathFinder;
+
+  @BeforeEach
+  public void setUp() {
+    // Create a mock AStarGrid for testing
+    AStarGrid grid = Mockito.mock(AStarGrid.class);
+    Mockito.when(grid.getSize()).thenReturn(new Dimension(10, 10));
+
+    pathFinder = new AStarPathFinder(grid);
+  }
+
+  @Test
+  void testConstructorWithAStarGrid() {
+    assertNotNull(pathFinder);
+    assertNotNull(pathFinder.getGrid());
+  }
+
+  @Test
+  void testConstructorWithSizeAndGridNodeSize() {
+    AStarPathFinder pathFinder = new AStarPathFinder(new Dimension(10, 10), 32);
+    assertNotNull(pathFinder);
+    assertNotNull(pathFinder.getGrid());
+  }
+
+  @Test
+  void testConstructorWithIMapAndGridNodeSize() {
+    IMap map = Mockito.mock(IMap.class);
+    Mockito.when(map.getSizeInPixels()).thenReturn(new Dimension(640, 480));
+    Mockito.when(map.getTileSize()).thenReturn(new Dimension(32, 32));
+
+    AStarPathFinder pathFinder = new AStarPathFinder(map, 32);
+    assertNotNull(pathFinder);
+    assertNotNull(pathFinder.getGrid());
+  }
+
+  @Test
+  void testConstructorWithIMap() {
+    IMap map = Mockito.mock(IMap.class);
+    Mockito.when(map.getSizeInPixels()).thenReturn(new Dimension(640, 480));
+    Mockito.when(map.getTileSize()).thenReturn(new Dimension(32, 32));
+
+    AStarPathFinder pathFinder = new AStarPathFinder(map);
+    assertNotNull(pathFinder);
+    assertNotNull(pathFinder.getGrid());
+  }
+
+  @Test
+  void testFindPathWithDirectPath() {
+    IMobileEntity entity = Mockito.mock(IMobileEntity.class);
+    Mockito.when(entity.getCollisionBoxCenter()).thenReturn(new Point2D.Double(10, 10));
+
+    Path path = pathFinder.findPath(entity, new Point2D.Double(50, 50));
+
+    assertNotNull(path);
+    assertFalse(path.getPoints().isEmpty());
+    assertEquals(new Point2D.Double(10, 10), path.getStart());
+    assertEquals(new Point2D.Double(50, 50), path.getTarget());
+  }
+
+  @Test
+  void testFindPathWithAStarPath() {
+    IMobileEntity entity = Mockito.mock(IMobileEntity.class);
+    Mockito.when(entity.getCollisionBoxCenter()).thenReturn(new Point2D.Double(10, 10));
+
+    Path path = pathFinder.findPath(entity, new Point2D.Double(90, 90));
+
+    assertNotNull(path);
+    assertFalse(path.getPoints().isEmpty());
+    assertEquals(new Point2D.Double(10, 10), path.getStart());
+    assertEquals(new Point2D.Double(90, 90), path.getTarget());
+  }
+}