Sokil\Mongo\CollectionTest::testDeleteDocuments_ExpressionAsArray PHP Method

    public function testDeleteDocuments_ExpressionAsArray()
    {
        // add
        $this->collection->createDocument(array('param' => 1))->save();
        $this->collection->createDocument(array('param' => 2))->save();
        $this->collection->createDocument(array('param' => 3))->save();
        $this->collection->createDocument(array('param' => 4))->save();
        // delete
        $this->collection->deleteDocuments(array('param' => array('$gt' => 2)));
        // test
        $this->assertEquals(2, count($this->collection));
    }