increase test coverage

build.gradle

@@ -75,7 +75,6 @@ jacocoTestReport {
 
 	afterEvaluate {
 		excludedClassFilesForReport(classDirectories)
-
 	}
 }
 
@@ -113,7 +112,7 @@ sonar {
 		property "sonar.projectKey", "mtech-31-quemistry_statistics_ms"
 		property "sonar.organization", "mtech-31-quemistry"
 		property "sonar.host.url", "https://sonarcloud.io"
-		property "sonar.coverage.exclusions", "**/entity/*,**/model/**/*,**/model/*,**/entity/**/*,**/Application,**/constant/**/*,**/constant/*,com/quemistry/statistics_ms/exception/ErrorResponse"
+		property "sonar.coverage.exclusions", "**/entity/*,**/model/**/*,**/model/*,**/entity/**/*,**/Application,**/constant/**/*,**/constant/*"
 	}
 }
 

src/main/java/com/quemistry/statistics_ms/exception/GlobalExceptionHandler.java

@@ -1,5 +1,6 @@
 package com.quemistry.statistics_ms.exception;
 
+import com.quemistry.statistics_ms.model.ErrorResponse;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;

src/main/java/com/quemistry/statistics_ms/exception/ErrorResponse.java → src/main/java/com/quemistry/statistics_ms/model/ErrorResponse.java

@@ -1,4 +1,4 @@
-package com.quemistry.statistics_ms.exception;
+package com.quemistry.statistics_ms.model;
 
 import lombok.AllArgsConstructor;
 import lombok.Data;

src/test/java/com/quemistry/statistics_ms/exception/GlobalExceptionHandlerTest.java

@@ -0,0 +1,50 @@
+package com.quemistry.statistics_ms.exception;
+
+import com.quemistry.statistics_ms.controller.StatisticsController;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.MvcResult;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.doThrow;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
+import static org.junit.jupiter.api.Assertions.*;
+
+@WebMvcTest(controllers = GlobalExceptionHandler.class)
+class GlobalExceptionHandlerTest {
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @MockBean
+    private StatisticsController controller;
+
+    @Test
+    void whenRuntimeExceptionThrown_thenInternalServerErrorResponse() throws Exception {
+        // Given
+        doThrow(new RuntimeException("Test RuntimeException"))
+                .when(controller)
+                .getMcqStatistics(any(), any()); // This will trigger the exception
+
+        // When & Then
+        MvcResult result = mockMvc.perform(get("/v1/stats/mcq")
+                        .contentType(MediaType.APPLICATION_JSON))
+                .andDo(print())
+                .andExpect(status().isInternalServerError())
+                .andExpect(jsonPath("$.statusCode").value(HttpStatus.INTERNAL_SERVER_ERROR.value()))
+                .andExpect(jsonPath("$.message").value("Internal Server Error"))
+                .andReturn();
+
+        // Assert
+        String responseBody = result.getResponse().getContentAsString();
+        assertTrue(responseBody.contains("Internal Server Error"));
+    }
+}