public function testIsTrunk() { $this->assertFalse($this->clusters('Child 1')->isTrunk()); $this->assertFalse($this->clusters('Child 2.1')->isTrunk()); $this->assertFalse($this->clusters('Child 3')->isTrunk()); $this->assertFalse($this->clusters('Root 2')->isTrunk()); $this->assertFalse($this->clusters('Root 1')->isTrunk()); $this->assertTrue($this->clusters('Child 2')->isTrunk()); $new = new Cluster(); $this->assertFalse($new->isTrunk()); }