A-JUnit: Add JUnit Tests

Author: wayne987

src/main/java/DukeTest.java

@@ -0,0 +1,78 @@
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+public class DukeTest {
+
+    @Test
+    public void Deadline_Wrong_Format1_exceptionThrown() {
+        Exception e = Assertions.assertThrows(DukeException.class, () ->
+            Deadline.create("deadline read book 2019/12/02 18:00"));
+
+        String expected = "Please include '/by' in front of the deadline";
+        Assertions.assertEquals(expected,e.getMessage());
+    }
+
+    @Test
+    public void Deadline_Wrong_Format2_exceptionThrown() {
+        Exception e = Assertions.assertThrows(DukeException.class, () ->
+            Deadline.create("deadline read book /by 02/12/2019 18:00"));
+
+        String expected = "please enter a valid yyyy-mm-dd format";
+        Assertions.assertEquals(expected,e.getMessage());
+    }
+
+    @Test
+    public void Deadline_Wrong_Format3_exceptionThrown() {
+        Exception e = Assertions.assertThrows(DukeException.class, () ->
+            Deadline.create("deadline read book /by 2019/12/02 1800"));
+
+        String expected = "please enter a valid HH:MM format";
+        Assertions.assertEquals(expected,e.getMessage());
+    }
+
+    @Test
+    public void Deadline_Wrong_Format4_exceptionThrown() {
+        Exception e = Assertions.assertThrows(DukeException.class, () ->
+            Deadline.create("deadline read book /at 2019/12/02 18:00"));
+
+        String expected = "Please include '/by' in front of the deadline";
+        Assertions.assertEquals(expected,e.getMessage());
+    }
+
+    @Test
+    public void Event_Wrong_Format1_exceptionThrown() {
+        Exception e = Assertions.assertThrows(DukeException.class, () ->
+            Event.create("event read book 2019/12/02 18:00"));
+
+        String expected = "Please include '/at' in front of the event time period";
+        Assertions.assertEquals(expected,e.getMessage());
+    }
+
+    @Test
+    public void Event_Wrong_Format2_exceptionThrown() {
+        Exception e = Assertions.assertThrows(DukeException.class, () ->
+            Event.create("event read book /at 02/12/2019 18:00"));
+
+        String expected = "please enter a valid yyyy-mm-dd format";
+        Assertions.assertEquals(expected,e.getMessage());
+    }
+
+    @Test
+    public void Event_Wrong_Format3_exceptionThrown() {
+        Exception e = Assertions.assertThrows(DukeException.class, () ->
+            Event.create("event read book /at 2019/12/02 1800"));
+
+        String expected = "please enter a valid HH:MM format";
+        Assertions.assertEquals(expected,e.getMessage());
+    }
+
+    @Test
+    public void Event_Wrong_Format4_exceptionThrown() {
+        Exception e = Assertions.assertThrows(DukeException.class, () ->
+            Event.create("event read book /by 2019/12/02 1800"));
+
+        String expected = "Please include '/at' in front of the event time period";
+        Assertions.assertEquals(expected,e.getMessage());
+    }
+
+}