Add J-Unit test

Author: dsja612

src/test/java/tasks/DeadlineTest.java

@@ -0,0 +1,32 @@
+package tasks;
+
+import exceptions.DukeException;
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class DeadlineTest {
+
+    @Test
+    public void descriptionTest() throws DukeException {
+        String name = "should output this";
+        LocalDateTime date = LocalDateTime.parse("10/12/2022 1020", DateTimeFormatter.ofPattern("dd/MM/yyyy HHmm"));
+        Deadline test = new Deadline(name, date);
+        assertEquals("[D][ ] should output this (by 1020, Dec 10 2022)", test.toString());
+    }
+
+    @Test
+    public void markTest() throws DukeException {
+        String name = "should output this";
+        LocalDateTime date = LocalDateTime.parse("10/12/2022 1020", DateTimeFormatter.ofPattern("dd/MM/yyyy HHmm"));
+        Deadline test = new Deadline(name, date);
+        test.markAsDone();
+        assertEquals("[D][X] should output this (by 1020, Dec 10 2022)", test.toString());
+        test.markAsUndone();
+        assertEquals("[D][ ] should output this (by 1020, Dec 10 2022)", test.toString());
+    }
+
+}