Add additional Junit tests

src/test/java/van/ParserTest.java

@@ -26,4 +26,6 @@ public void toDoTester() {
     assertEquals("[T][ ] study", toDoTest.toString());
   }
 
+
+
 }

src/test/java/van/TaskTest.java

@@ -0,0 +1,29 @@
+package van;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class TaskTest {
+    @Test
+    public void taskTester() {
+        ToDo test = new ToDo("test");
+        assertEquals("[T][ ] test ", test.getStatus());
+    }
+
+    @Test
+    public void markTester() {
+        ToDo test = new ToDo("test");
+        test.setDone();
+        assertEquals("[T][X] test ", test.getStatus());
+        test.setUnDone();
+        assertEquals("[T][ ] test ", test.getStatus());
+    }
+
+    @Test
+    public void saveTester() {
+        ToDo test = new ToDo("test");
+        test.setDone();
+        assertEquals("T|1|test| ", test.saveStatus());
+    }
+}