diff --git a/src/Database/Database.php b/src/Database/Database.php
index 4ca454821b..273c2985c6 100644
--- a/src/Database/Database.php
+++ b/src/Database/Database.php
@@ -385,12 +385,11 @@ class Database
 
 		switch ($this->driver) {
 			case self::PDO:
-				$connected = true;
-//				$r = $this->p("SELECT 1");
-//				if ($this->isResult($r)) {
-//					$row       = $this->toArray($r);
-//					$connected = ($row[0]['1'] == '1');
-//				}
+				$r = $this->p("SELECT 1");
+				if ($this->isResult($r)) {
+					$row       = $this->toArray($r);
+					$connected = ($row[0]['1'] == '1');
+				}
 				break;
 			case self::MYSQLI:
 				$connected = $this->connection->ping();
diff --git a/tests/functional/DependencyCheckTest.php b/tests/functional/DependencyCheckTest.php
index 4694f3d0ed..fcb16e14cc 100644
--- a/tests/functional/DependencyCheckTest.php
+++ b/tests/functional/DependencyCheckTest.php
@@ -119,9 +119,9 @@ class DependencyCheckTest extends TestCase
 		$database = $this->dice->create(Database::class);
 
 		self::assertInstanceOf(Database::class, $database);
-		self::assertContains($database->getDriver(), [Database::PDO, Database::MYSQLI]);
-		self::assertNotNull($database->getConnection());
-		self::assertTrue($database->connected());
+		self::assertContains($database->getDriver(), [Database::PDO, Database::MYSQLI], 'The driver returns an unexpected value');
+		self::assertNotNull($database->getConnection(), 'There is no database connection');
+		self::assertTrue($database->connected(), 'The database is not connected');
 	}
 
 	public function testAppMode()