A-JUnit: Add JUnit Tests

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "java.configuration.updateBuildConfiguration": "interactive"
+}

build.gradle

@@ -10,6 +10,7 @@ repositories {
 
 dependencies {
     testImplementation group: 'org.junit.jupiter', name: 'junit-jupiter-api', version: '5.10.0'
+    testImplementation 'org.mockito:mockito-core:4.0.0'
     testRuntimeOnly group: 'org.junit.jupiter', name: 'junit-jupiter-engine', version: '5.10.0'
 }
 

src/test/java/nathanbot/tasks/DeadlineTest.java

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+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import org.junit.jupiter.api.Test;
+
+import nathanbot.tasks.Deadline;
+
+public class DeadlineTest {
+
+    @Test
+    public void testToString() {
+        LocalDateTime dateTime = LocalDateTime.of(2023, 10, 5, 14, 30);
+        Deadline deadline = new Deadline("Submit assignment", dateTime);
+        DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("dd MMM yyyy hh:mma");
+        String expected = "[D][ ] Submit assignment (by: " + dateTime.format(dateTimeFormatter) + ")";
+        assertEquals(expected, deadline.toString());
+    }
+}

src/test/java/nathanbot/tasks/EventTest.java

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+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import org.junit.jupiter.api.Test;
+
+import nathanbot.tasks.Event;
+
+public class EventTest {
+
+    @Test
+    public void testToString() {
+        LocalDateTime startTime = LocalDateTime.of(2023, 10, 5, 14, 30);
+        LocalDateTime endTime = LocalDateTime.of(2024, 10, 5, 14, 30);
+        Event event = new Event("Submit assignment", startTime, endTime);
+        DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("dd MMM yyyy hh:mma");
+        String expected = "[E][ ] Submit assignment (from: " + startTime.format(dateTimeFormatter) + " to: " + endTime.format(dateTimeFormatter) + ")";
+        assertEquals(expected, event.toString());
+    }
+}

src/test/java/nathanbot/tasks/TaskListTest.java

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+import java.util.ArrayList;
+import java.util.Arrays;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import nathanbot.storage.Storage;
+import nathanbot.tasks.Task;
+import nathanbot.tasks.TaskList;
+
+public class TaskListTest {
+    // built with Copilot's assistance 
+    private Storage storage;
+    private TaskList taskList;
+    private Task task1;
+    private Task task2;
+
+    @BeforeEach
+    public void setUp() {
+        storage = mock(Storage.class);
+        task1 = mock(Task.class);
+        task2 = mock(Task.class);
+
+        when(storage.loadTasksFromFile()).thenReturn(new ArrayList<>(Arrays.asList(task1, task2)));
+
+        taskList = new TaskList(storage);
+    }
+
+    @Test
+    public void testConstructorLoadsTasks() {
+        assertEquals(2, taskList.listLength());
+    }
+
+    @Test
+    public void testAddTask() {
+        Task newTask = mock(Task.class);
+        taskList.addTask(newTask);
+
+        assertEquals(3, taskList.listLength());
+    }
+
+    @Test
+    public void testToString() {
+        when(task1.toString()).thenReturn("Task 1");
+        when(task2.toString()).thenReturn("Task 2");
+
+        String expected = "1. Task 1\n2. Task 2\n";
+        assertEquals(expected, taskList.toString());
+    }
+}

src/test/java/nathanbot/tasks/ToDoTest.java

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+import static org.junit.jupiter.api.Assertions.assertEquals;
+import org.junit.jupiter.api.Test;
+
+import nathanbot.tasks.ToDo;
+
+public class ToDoTest {
+
+    @Test
+    public void testToString() {
+        ToDo toDo = new ToDo("Submit assignment");
+        String expected = "[T][ ] Submit assignment";
+        assertEquals(expected, toDo.toString());
+    }
+}