/**
  * @test
  * @dataProvider autoMarginConvertProvider
  */
 public function autoMarginConvert($nodeWidth, $parentWidth, $expectedMarginLeft, $expectedMarginRight)
 {
     $node = new Container(array('width' => $nodeWidth));
     $node->setWidth($nodeWidth);
     $node->setMargin(0, 'auto');
     $mock = $this->getMock('\\PHPPdf\\Core\\Node\\Page', array('getWidth', 'setWidth'));
     $mock->expects($this->atLeastOnce())->method('getWidth')->will($this->returnValue($parentWidth));
     if ($nodeWidth > $parentWidth) {
         $mock->expects($this->once())->method('setWidth')->with($nodeWidth);
     }
     $mock->add($node);
     $this->formatter->format($node, $this->document);
     $this->assertEquals($expectedMarginLeft, $node->getMarginLeft());
     $this->assertEquals($expectedMarginRight, $node->getMarginRight());
 }