public function testDeleteRelationsFrom()
{
$this->insertDatabaseFixture(__DIR__ . '/../_fixtures/contentobjects.php');
$beforeCount = array('all' => $this->countContentRelations(), 'from' => $this->countContentRelations(75), 'to' => $this->countContentRelations(null, 75));
$gateway = $this->getDatabaseGateway();
$gateway->deleteRelations(75);
$this->assertEquals(array('all' => $beforeCount['all'] - 6, 'from' => $beforeCount['from'] - 6, 'to' => $beforeCount['to']), array('all' => $this->countContentRelations(), 'from' => $this->countContentRelations(75), 'to' => $this->countContentRelations(null, 75)));
}