Use camel case

tests/Doctrine/Tests/DBAL/Driver/Mysqli/MysqliConnectionTest.php

@@ -47,7 +47,7 @@ class MysqliConnectionTest extends DbalFunctionalTestCase
         $handler        = static function () : bool {
             self::fail('Never expected this to be called');
         };
-        $default_handler = set_error_handler($handler);
+        $defaultHandler = set_error_handler($handler);
 
         try {
             new MysqliConnection(['host' => '255.255.255.255'], 'user', 'pass');
@@ -56,7 +56,7 @@ class MysqliConnectionTest extends DbalFunctionalTestCase
             self::assertSame('Network is unreachable', $e->getMessage());
         }
 
-        self::assertSame($handler, set_error_handler($default_handler), 'Restoring error handler failed.');
+        self::assertSame($handler, set_error_handler($defaultHandler), 'Restoring error handler failed.');
         restore_error_handler();
         restore_error_handler();
     }

tests/Doctrine/Tests/DBAL/Functional/ResultCacheTest.php

@@ -128,9 +128,9 @@ class ResultCacheTest extends DbalFunctionalTestCase
         $data = $this->hydrateStmt($stmt, $fetchMode);
 
         $stmt         = $this->connection->executeQuery('SELECT * FROM caching ORDER BY test_int ASC', [], [], new QueryCacheProfile(10, 'testcachekey'));
-        $data_iterator = $this->hydrateStmtIterator($stmt, $fetchMode);
+        $dataIterator = $this->hydrateStmtIterator($stmt, $fetchMode);
 
-        self::assertEquals($data, $data_iterator);
+        self::assertEquals($data, $dataIterator);
     }
 
     public function testDontCloseNoCache() : void

tests/Doctrine/Tests/DBAL/Query/QueryBuilderTest.php

@@ -792,14 +792,14 @@ class QueryBuilderTest extends DbalTestCase
 
         $qb->setParameter(':test', (object) 1);
 
-        $qb_clone = clone $qb;
+        $qbClone = clone $qb;
 
-        self::assertEquals((string) $qb, (string) $qb_clone);
+        self::assertEquals((string) $qb, (string) $qbClone);
 
         $qb->andWhere('u.id = 1');
 
-        self::assertNotSame($qb->getQueryParts(), $qb_clone->getQueryParts());
-        self::assertNotSame($qb->getParameters(), $qb_clone->getParameters());
+        self::assertNotSame($qb->getQueryParts(), $qbClone->getQueryParts());
+        self::assertNotSame($qb->getParameters(), $qbClone->getParameters());
     }
 
     public function testSimpleSelectWithoutTableAlias() : void