4gewinnt: added checkButtons method

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

@@ -86,6 +86,10 @@ public class Logic {
 		return 0;
 	}
 	
+	public boolean checkButtons() {
+		return true;
+	}
+	
 	JPanel contentPanel;
 	JPanel buttonPanel;
 	JPanel playfieldPanel;

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

@@ -226,6 +226,16 @@ class LogicTest {
 		assertEquals(testObj.getBoardSize() - 3, testObj.getFreePlace(0));
 	}
 	
+	@Test
+	void checkButtonsTest() {
+		testObj.create4gewinntGui();
+		boolean expectedResult = true;
+		
+		boolean realResult = testObj.checkButtons();
+		
+		assertEquals(expectedResult, realResult);
+	}
+	
 	private static Stream<Arguments> playfieldResults() {
 		int[][] playfield1 = {{0, 0, 0, 0, 0, 0}, 
 				   			  {0, 0, 0, 0, 0, 0},