src/test/java/com/developer/service/DeveloperServiceTest.java

@@ -0,0 +1,43 @@
+package com.developer.service;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+@SpringBootTest
+class DeveloperServiceTest {
+
+    @Autowired
+    private DeveloperService developerService;
+
+    @Test
+    void contextLoads() {
+        assertNotNull(developerService);
+    }
+
+    @Test
+    void getRole_ReturnsDeveloper() {
+        String role = developerService.getRole();
+        assertNotNull(role);
+        assertTrue(role.contains("Developer"));
+    }
+
+    @Test
+    void getRoleDescription_ReturnsDescription() {
+        String description = developerService.getRoleDescription();
+        assertNotNull(description);
+        assertTrue(description.length() > 0);
+    }
+
+    @Test
+    void isValidRole_ValidatesCorrectly() {
+        assertTrue(developerService.isValidRole("Developer"));
+        assertFalse(developerService.isValidRole("Admin"));
+        assertFalse(developerService.isValidRole(""));
+        assertFalse(developerService.isValidRole(null));
+    }
+}