public function testCreateLink()
{
$l = new Link($this->container);
$this->assertNotFalse($l->create('Link A'));
$this->assertFalse($l->create('Link A'));
$this->assertNotFalse($l->create('Link B', 'Link C'));
$links = $l->getAll();
$this->assertNotEmpty($links);
$this->assertCount(14, $links);
$link = $l->getByLabel('Link A');
$this->assertNotEmpty($link);
$this->assertEquals('Link A', $link['label']);
$this->assertEquals(0, $link['opposite_id']);
$link1 = $l->getByLabel('Link B');
$this->assertNotEmpty($link1);
$this->assertEquals('Link B', $link1['label']);
$this->assertNotEmpty($link1['opposite_id']);
$link2 = $l->getByLabel('Link C');
$this->assertNotEmpty($link2);
$this->assertEquals('Link C', $link2['label']);
$this->assertNotEmpty($link2['opposite_id']);
$this->assertNotEquals($link1['opposite_id'], $link2['opposite_id']);
}
