paulzi / yii2-materialized-path

        $this->assertEquals(true, $node->isRelationPopulated('children'));

    }

    public function testIsRoot()

    {

        $this->assertTrue(Node::findOne(1)->isRoot());

        $this->assertFalse(Node::findOne(3)->isRoot());

        $this->assertTrue(AttributeModeNode::findOne(1)->isRoot());

        $this->assertFalse(AttributeModeNode::findOne(3)->isRoot());

        $this->assertTrue(MultipleTreeNode::findOne(1)->isRoot());

        $this->assertFalse(MultipleTreeNode::findOne(3)->isRoot());

    }

    public function testIsChildOf()

    {

        $this->assertFalse(MultipleTreeNode::findOne(9)->isChildOf(MultipleTreeNode::findOne(16)));

    }

    public function testIsLeaf()

    {

        $this->assertTrue(Node::findOne(5)->isLeaf());

        $this->assertFalse(Node::findOne(2)->isLeaf());

        $this->assertTrue(AttributeModeNode::findOne(5)->isLeaf());

        $this->assertFalse(AttributeModeNode::findOne(2)->isLeaf());

        $this->assertTrue(MultipleTreeNode::findOne(5)->isLeaf());

        $this->assertFalse(MultipleTreeNode::findOne(2)->isLeaf());

    }

    public function testMakeRootInsert()

    {