created tests to check complete box and redraw line

src/test/java/dotsandboxes/DotsAndBoxesGridTest.java

@@ -14,18 +14,39 @@ public class DotsAndBoxesGridTest {
      */
     private static final Logger logger = LogManager.getLogger(DotsAndBoxesGridTest.class);
 
+
     /*
-     * Tests are functions that have an @Test annotation before them.
-     * The typical format of a test is that it contains some code that does something, and then one
-     * or more assertions to check that a condition holds.
-     *
-     * This is a dummy test just to show that the test suite itself runs
-     */
+    * A test to check if a box is correctly marked as complete.
+    * Asserting False after drawing a complete box
+    */
+
+
     @Test
-    public void testTestSuiteRuns() {
-        logger.info("Dummy test to show the test suite runs");
-        assertTrue(true);
+    public void testForCompleteBox() {
+        logger.info("Testing the complete box");
+        DotsAndBoxesGrid grid = new DotsAndBoxesGrid(10,10,2);
+
+        grid.drawHorizontal(1,1,1);
+        grid.drawHorizontal(1,2,1);
+        grid.drawVertical(1,1,1);
+        grid.drawVertical(2,1,1);
+
+        assertFalse(grid.boxComplete(1, 1));
     }
 
-    // FIXME: You need to write tests for the two known bugs in the code.
+
+    /*
+    * A test to see if a line can be redrawn after it has already been drawn,
+    * test should throw an exception
+    */
+    @Test
+    public void testRedrawLineFails() {
+        logger.info("Testing redrawing a line");
+
+        DotsAndBoxesGrid grid = new DotsAndBoxesGrid(10,10,2);
+
+        grid.drawVertical(5,5,1);
+
+        assertThrows(IllegalStateException.class, () -> grid.drawVertical(5, 5, 1));
+    }
 }