Added second test case for areAllShipsHit() - all ships hit test

src/main/java/de/tims/fleetstorm/matchfield/Matchfield.java

@@ -97,7 +97,17 @@ public class Matchfield {
 	}
 
 	public boolean areAllShipsHit() {
-		return false;
+		int shipCounter = 0;
+
+		for (int i = 0; i < size; i++) {
+			for (int j = 0; j < size; j++) {
+				int fieldState = this.matchfield[i][j].getState();
+				if (fieldState == Coordinate.SHIP)
+					shipCounter++;
+			}
+		}
+
+		return shipCounter == 0;
 	}
 
 }

src/test/java/de/tims/fleetstorm/matchfield/MatchfieldShipTest.java

@@ -92,5 +92,13 @@ class MatchfieldShipTest {
 
 		boolean calulatedResult = matchfield.areAllShipsHit();
 		assertFalse(calulatedResult);
+
+		matchfield.getField(0, 0).setState(Coordinate.HIT);
+		matchfield.getField(0, 1).setState(Coordinate.HIT);
+		matchfield.getField(0, 2).setState(Coordinate.HIT);
+		matchfield.getField(0, 3).setState(Coordinate.HIT);
+		matchfield.getField(0, 4).setState(Coordinate.HIT);
+		calulatedResult = matchfield.areAllShipsHit();
+		assertTrue(calulatedResult);
 	}
 }