public function testLoadPage()
{
$select = $this->getMock('\\Magento\\Framework\\DB\\Select', [], [], '', false);
$select->expects($this->any())->method('from')->with($this->equalTo('some_table'), $this->equalTo('*'))->willReturnSelf();
$select->expects($this->any())->method('limit')->with($this->equalTo(2), $this->equalTo(20));
$this->pdoMysql->expects($this->any())->method('select')->willReturn($select);
$data = [['column1' => 'value1'], ['column1' => 'value2']];
$this->pdoMysql->expects($this->any())->method('fetchAll')->with($this->equalTo($select))->willReturn($data);
$this->assertEquals($data, $this->adapterMysql->loadPage('some_table', 10, 2));
}
