/**
* @expectedException \Magento\Framework\Exception\StateException
* @expectedExceptionMessage Product has been already attached
*/
public function testAddChildStateException()
{
$productSku = 'configurable-sku';
$childSku = 'simple-sku';
$configurable = $this->getMockBuilder('Magento\\Catalog\\Model\\Product')->disableOriginalConstructor()->getMock();
$configurable->expects($this->any())->method('getId')->will($this->returnValue(666));
$simplee = $this->getMockBuilder('Magento\\Catalog\\Model\\Product')->disableOriginalConstructor()->getMock();
$simplee->expects($this->any())->method('getId')->will($this->returnValue(1));
$this->productRepository->expects($this->at(0))->method('get')->with($productSku)->will($this->returnValue($configurable));
$this->productRepository->expects($this->at(1))->method('get')->with($childSku)->will($this->returnValue($simplee));
$this->configurableType->expects($this->once())->method('getChildrenIds')->with(666)->will($this->returnValue([0 => [1, 2, 3]]));
$this->assertTrue(true, $this->service->addChild($productSku, $childSku));
}
