added unit test for the TurnStrategy

src/test/java/de/dj_steam/bot/moving/strategy/TurnStrategyTest.java

@@ -0,0 +1,42 @@
+package de.dj_steam.bot.moving.strategy;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import de.dj_steam.bot.domain.Direction;
+import de.dj_steam.bot.domain.Position;
+import de.dj_steam.bot.domain.ToyBot;
+import de.dj_steam.bot.domain.ToyBotField;
+import de.dj_steam.bot.engine.RobotEngine;
+
+/**
+ * @author stanislav.nowogrudski
+ */
+public class TurnStrategyTest {
+
+    private TurnStrategy turnStrategy;
+    private ToyBot toyBot;
+
+    @Before
+    public void setup() {
+        turnStrategy = new TurnStrategy();
+        toyBot = new ToyBot(Direction.NORTH, new Position());
+    }
+
+    @Test
+    public void testTurnLeft() {
+        assertEquals(Direction.NORTH, toyBot.getDirection());
+        turnStrategy.change(toyBot, new ToyBotField(), RobotEngine.TURN_LEFT);
+        assertEquals(Direction.WEST, toyBot.getDirection());
+    }
+
+    @Test
+    public void testTurnRight() {
+        assertEquals(Direction.NORTH, toyBot.getDirection());
+        turnStrategy.change(toyBot, new ToyBotField(), RobotEngine.TURN_RIGHT);
+        assertEquals(Direction.EAST, toyBot.getDirection());
+    }
+
+}