Added tests for question class

backend/wiq/src/test/java/com/wiq/wiq/services/questionGenerator/question/QuestionTests.java

@@ -0,0 +1,67 @@
+package com.wiq.wiq.services.questionGenerator.question;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import java.util.Arrays;
+import java.util.List;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+public class QuestionTests {
+
+    private Question question;
+
+    @BeforeEach
+    void setUp() {
+        List<String> answers = Arrays.asList("A", "B", "C");
+        question = new Question("What is the capital of France?", answers);
+    }
+
+    @Test
+    void testGetQuestion() {
+        assertEquals("What is the capital of France?", question.getQuestion());
+    }
+
+    @Test
+    void testSetQuestion() {
+        question.setQuestion("What is the capital of Germany?");
+        assertEquals("What is the capital of Germany?", question.getQuestion());
+    }
+
+    @Test
+    void testGetAnswers() {
+        List<String> expectedAnswers = Arrays.asList("A", "B", "C");
+        assertEquals(expectedAnswers, question.getAnswers());
+    }
+
+    @Test
+    void testSetAnswers() {
+        List<String> newAnswers = Arrays.asList("X", "Y", "Z");
+        question.setAnswers(newAnswers);
+        assertEquals(newAnswers, question.getAnswers());
+    }
+
+    @Test
+    void testAddRightAnswer() {
+        question.addRightAnswer("Paris");
+        List<String> expectedAnswers = Arrays.asList("Paris", "A", "B", "C");
+        assertEquals(expectedAnswers, question.getAnswers());
+    }
+
+    @Test
+    void testGetJSON() {
+        try {
+            JSONObject expectedJson = new JSONObject()
+                    .put("question", "What is the capital of France?")
+                    .put("answers", new JSONArray().put("A").put("B").put("C"));
+            assertEquals(expectedJson.toString(), question.getJSON().toString());
+        } catch (JSONException e) {
+            fail("JSONException occurred: " + e.getMessage());
+        }
+    }
+}