4gewinnt: finished getFreePlaceMethod

src/main/java/de/tims/viergewinnt/ai/Logic.java

@@ -59,11 +59,11 @@ public class Logic {
 	}
 	
 	public int getFreePlace(int column) {
-		if(getField(getBoardSize() - 1, column) == 0) {
-			return getBoardSize() - 1;
-		} else {
-			return getBoardSize() - 2;
+		int size = getBoardSize() - 1;
+		while(getField(size, column) != 0) {
+			size--;
 		}
+		return size;
 	}
 	
 	public int playChip(int column) {

src/test/java/de/tims/viergewinnt/ai/LogicTest.java

@@ -199,6 +199,14 @@ class LogicTest {
 		assertEquals(testObj.getBoardSize() - 2, testObj.getFreePlace(0));
 	}
 	
+	@Test
+	void getFreePlaceTestWithAnyField() {
+		testObj.setField(1, testObj.getBoardSize() - 1, 0);
+		testObj.setField(1, testObj.getBoardSize() - 2, 0);
+		
+		assertEquals(testObj.getBoardSize() - 3, testObj.getFreePlace(0));
+	}
+	
 	private static Stream<Arguments> playfieldResults() {
 		int[][] playfield1 = {{0, 0, 0, 0, 0, 0}, 
 				   			  {0, 0, 0, 0, 0, 0},