Refactor test files to improve code consistency

- Updated exception handling in PerformanceControllerExportCsvTest to use the base Exception class.
- Removed unnecessary `use stdClass;` statements in PerformanceAnalysisServiceTest and added it in TableStatusCheckerTest for consistency.
- Adjusted instantiation of stdClass in multiple test files for cleaner code style.

Author: HecFranco

tests/Unit/Controller/PerformanceControllerExportCsvTest.php

@@ -4,6 +4,7 @@
 
 namespace Nowo\PerformanceBundle\Tests\Unit\Controller;
 
+use Exception;
 use Nowo\PerformanceBundle\Controller\PerformanceController;
 use Nowo\PerformanceBundle\Repository\RouteDataRepository;
 use Nowo\PerformanceBundle\Service\PerformanceMetricsService;
@@ -32,7 +33,7 @@ public function testExportCsvWhenGetRoutesWithAggregatesFilteredThrowsReturnsEmp
     {
         $this->metricsService
             ->method('getRoutesWithAggregatesFiltered')
-            ->willThrowException(new \Exception('DB error'));
+            ->willThrowException(new Exception('DB error'));
 
         $controller = $this->getMockBuilder(PerformanceController::class)
             ->setConstructorArgs([

tests/Unit/Controller/PerformanceControllerStatisticsTest.php

@@ -218,7 +218,7 @@ public function testStatisticsWithRequiredRolesAndIsGrantedRenders(): void
 
         $envForm = $this->createMock(FormInterface::class);
         $envForm->method('handleRequest');
-        $data = new \stdClass();
+        $data      = new stdClass();
         $data->env = 'test';
         $envForm->method('getData')->willReturn($data);
         $envForm->method('createView')->willReturn(new FormView());

tests/Unit/Service/PerformanceAnalysisServiceTest.php

@@ -8,7 +8,6 @@
 use Nowo\PerformanceBundle\Model\RouteDataWithAggregates;
 use Nowo\PerformanceBundle\Service\PerformanceAnalysisService;
 use PHPUnit\Framework\TestCase;
-use stdClass;
 
 final class PerformanceAnalysisServiceTest extends TestCase
 {

tests/Unit/Service/TableStatusCheckerTest.php

@@ -13,6 +13,7 @@
 use Nowo\PerformanceBundle\Service\TableStatusChecker;
 use PHPUnit\Framework\TestCase;
 use RuntimeException;
+use stdClass;
 
 final class TableStatusCheckerTest extends TestCase
 {
@@ -476,7 +477,7 @@ public function testGetRecordsTableStatusWhenAccessRecordsEnabled(): void
     public function testTableExistsReturnsFalseWhenRegistryReturnsNonConnection(): void
     {
         $registry = $this->createMock(ManagerRegistry::class);
-        $registry->method('getConnection')->with('default')->willReturn(new \stdClass());
+        $registry->method('getConnection')->with('default')->willReturn(new stdClass());
 
         $checker = new TableStatusChecker($registry, 'default', 'routes_data', false);
 
@@ -486,7 +487,7 @@ public function testTableExistsReturnsFalseWhenRegistryReturnsNonConnection(): v
     public function testGetMissingColumnsReturnsEmptyWhenRegistryReturnsNonConnection(): void
     {
         $registry = $this->createMock(ManagerRegistry::class);
-        $registry->method('getConnection')->with('default')->willReturn(new \stdClass());
+        $registry->method('getConnection')->with('default')->willReturn(new stdClass());
 
         $checker = new TableStatusChecker($registry, 'default', 'routes_data', false);