Added two new tests for checking if a box is complete or not. Issue 1 on gitlab

src/test/java/dotsandboxes/DotsAndBoxesGridTest.java

@@ -28,4 +28,35 @@ public class DotsAndBoxesGridTest {
     }
 
     // FIXME: You need to write tests for the two known bugs in the code.
+    @Test
+    public void CallingboxCompleteOnACompleteBoxShouldReturnTrue() {
+	logger.info("Testing boxComplete() on a complete box");
+	var grid = new DotsAndBoxesGrid(2, 2, 1); // Minimum sized grid to test (1 box)
+	grid.drawHorizontal(0, 0, 1);
+	grid.drawHorizontal(0, 1, 1);
+	grid.drawVertical(0, 0, 1);
+	grid.drawVertical(1, 0, 1);
+
+	assertTrue(grid.boxComplete(0, 0));
+    }
+
+    @Test
+    public void CallingboxCompleteOnAnIncompleteBoxShouldReturnFalse() {
+	logger.info("Testing boxCopmlete() on an incomplete box");
+
+	var grid = new DotsAndBoxesGrid(2, 2, 1);
+
+	// Build a box testing after each line
+	// All checks should return false except the last which should be a complete box
+	assertFalse(grid.boxComplete(0, 0));
+	grid.drawHorizontal(0, 0, 0);
+	assertFalse(grid.boxComplete(0, 0));
+	grid.drawHorizontal(0, 1, 0);
+	assertFalse(grid.boxComplete(0, 0));
+	grid.drawVertical(0, 0, 0);
+	assertFalse(grid.boxComplete(0, 0));
+	grid.drawVertical(1, 0, 0);
+	assertTrue(grid.boxComplete(0, 0));
+
+    }
 }