added test for player input processing

src/test/java/pacmanTests/PlayerTest.java

@@ -39,4 +39,27 @@ class PlayerTest {
 		// assert
 		assertThat(position).isEqualTo(expectedPosition);
 	}
+	
+	@Test
+	void Player_processInput_changesDirectionUp() {
+		// arrange
+
+		String[] mapTest = {		
+		"...",	
+		"...",
+		"..."
+		};
+		GameManager gameManager = new GameManager();
+
+		gameManager.map = new Map(mapTest, gameManager);
+		Player player = gameManager.player;
+		player.position = new Vector2(1,1);
+		player.direction = new Vector2(-1,0);
+		Vector2 expectedDdirection = new Vector2(0,1);
+		// act
+		player.processInput('w');
+		Vector2 direction = player.direction;
+		// assert
+		assertThat(direction).isEqualTo(expectedDdirection);
+	}
 }