public function testApply()
{
$this->assertEmpty($this->_model->getLayer()->getState()->getFilters());
$objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();
$request = $objectManager->get('Magento\\TestFramework\\Request');
$request->setParam('attribute', $this->_attributeOptionId);
$this->_model->apply($request);
$this->assertNotEmpty($this->_model->getLayer()->getState()->getFilters());
}
public function testGetItems()
{
$attributeCode = 'attributeCode';
$attributeValue = 'attributeValue';
$attributeLabel = 'attributeLabel';
$this->attribute->expects($this->once())->method('getAttributeCode')->will($this->returnValue($attributeCode));
$this->target->setAttributeModel($this->attribute);
$this->request->expects($this->once())->method('getParam')->with($attributeCode)->will($this->returnValue($attributeValue));
$this->frontend->expects($this->once())->method('getOption')->with($attributeValue)->will($this->returnValue($attributeLabel));
$filterItem = $this->createFilterItem(0, $attributeLabel, $attributeValue, 0);
$this->state->expects($this->once())->method('addFilter')->with($filterItem)->will($this->returnSelf());
$expectedFilterItems = [];
$result = $this->target->apply($this->request)->getItems();
$this->assertEquals($expectedFilterItems, $result);
}