Contains logic for showing import history
Author: Bob Olde Hampsink (b.oldehampsink@itmundi.nl)
Inheritance: extends craft\BaseApplicationComponent
 /**
  * @covers ::clear
  */
 public function testClearShouldDoNothing()
 {
     $service = new Import_HistoryService();
     $result = $service->clear(1);
     $this->assertNull($result);
 }