public function testIncludesInterfaceSubtypesInTheTypeMap()
{
$someInterface = new InterfaceType(['name' => 'SomeInterface', 'fields' => []]);
$someSubtype = new ObjectType(['name' => 'SomeSubtype', 'fields' => [], 'interfaces' => [$someInterface]]);
$schema = new Schema($someInterface);
$this->assertSame($someSubtype, $schema->getType('SomeSubtype'));
}