Added Project

backend/src/test/java/com/ninjaws/quiz/services/QueueServiceTest.java

@@ -0,0 +1,63 @@
+package com.ninjaws.quiz.services;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import com.ninjaws.quiz.models.QuizSettings;
+import com.ninjaws.quiz.models.Request;
+
+public class QueueServiceTest {
+
+    private QueueService queueService;
+
+    @BeforeEach
+    public void setUp() {
+        queueService = new QueueService();
+    }
+
+    @Test
+    public void testAddToQueue() {
+        QuizSettings quizSettings = new QuizSettings();
+        Request request = new Request("session1", quizSettings);
+
+        boolean added = queueService.addToQueue(request);
+        assertTrue(added);
+
+        for (int i = 0; i < 4; i++) {
+            added = queueService.addToQueue(new Request("session" + (i + 2), new QuizSettings()));
+            assertTrue(added);
+        }
+
+        added = queueService.addToQueue(new Request("session6", new QuizSettings()));
+        assertFalse(added);
+    }
+
+    @Test
+    public void testPopFromQueue() {
+        QuizSettings quizSettings1 = new QuizSettings();
+        QuizSettings quizSettings2 = new QuizSettings();
+
+        Request request1 = new Request("session1", quizSettings1);
+        Request request2 = new Request("session2", quizSettings2);
+
+        queueService.addToQueue(request1);
+        queueService.addToQueue(request2);
+
+        Request poppedRequest = queueService.popFromQueue();
+        assertEquals(request1, poppedRequest);
+
+        poppedRequest = queueService.popFromQueue();
+        assertEquals(request2, poppedRequest);
+
+        assertNull(queueService.popFromQueue());
+    }
+
+    @Test
+    public void testPopFromEmptyQueue() {
+        assertNull(queueService.popFromQueue());
+    }
+}