/**
* @magentoAppIsolation enabled
* @covers \Magento\Framework\View\Element\AbstractBlock::getChildHtml
* @covers \Magento\Framework\View\Element\AbstractBlock::getChildChildHtml
*/
public function testGetChildHtml()
{
// Without layout
$this->assertEmpty($this->_block->getChildHtml());
$this->assertEmpty($this->_block->getChildHtml('block'));
// With layout
$parent = $this->_createBlockWithLayout('parent', 'parent');
$blockOne = $this->_createBlockWithLayout('block1', 'block1', 'Magento\\Framework\\View\\Element\\Text');
$blockTwo = $this->_createBlockWithLayout('block2', 'block2', 'Magento\\Framework\\View\\Element\\Text');
$blockOne->setText('one');
$blockTwo->setText('two');
$parent->insert($blockTwo, '-', false, 'block2');
// make block2 1st
$parent->insert($blockOne, '-', false, 'block1');
// make block1 1st
$this->assertEquals('one', $parent->getChildHtml('block1'));
$this->assertEquals('two', $parent->getChildHtml('block2'));
// Sorted will render in the designated order
$this->assertEquals('onetwo', $parent->getChildHtml('', true, true));
// GetChildChildHtml
$blockTwo->setChild('block11', $blockOne);
$this->assertEquals('one', $parent->getChildChildHtml('block2'));
$this->assertEquals('', $parent->getChildChildHtml(''));
$this->assertEquals('', $parent->getChildChildHtml('block3'));
}
