public function testSetProperties() { $node = new Node(null, [], null, ['a' => 1, 'b' => 2]); $node2 = new Node(); $node2->setProperties(['c' => 3, 'd' => 4]); $this->assertEquals(['a' => 1, 'b' => 2], $node->getProperties()); $this->assertEquals(['c' => 3, 'd' => 4], $node2->getProperties()); }