diff --git a/core/tests/Drupal/KernelTests/Core/Database/ConnectionUnitTest.php b/core/tests/Drupal/KernelTests/Core/Database/ConnectionUnitTest.php
index 6edcef8..5ed2432 100644
--- a/core/tests/Drupal/KernelTests/Core/Database/ConnectionUnitTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Database/ConnectionUnitTest.php
@@ -221,6 +221,11 @@ public function testConnectionOpen() {
     $reflection = new \ReflectionObject($connection);
     $connection_property = $reflection->getProperty('connection');
     $connection_property->setAccessible(TRUE);
+    // In case a database driver is implementing a non-PDO connection, skip
+    // this test.
+    if (get_class($connection_property->getValue($connection)) != 'PDO') {
+      $this->markTestSkipped('The database driver does not implement a PDO connection.');
+    }
     $error_mode = $connection_property->getValue($connection)
       ->getAttribute(\PDO::ATTR_ERRMODE);
     $this->assertEqual($error_mode, \PDO::ERRMODE_EXCEPTION, 'Ensure the default error mode is set to exception.');