Author: Antoine Guigan (antoine@akeneo.com)
Inheritance: extends AbstractXMLResource
 public function it_returns_worksheet_paths(Relationships $relationships)
 {
     $relationships->getWorksheetPath(\Prophecy\Argument::type('string'))->will(function ($args) {
         return 'file_' . $args[0];
     });
     $this->getWorksheetPaths($relationships, __DIR__ . '/fixtures/workbook.xml')->shouldReturn(['Worksheet1' => 'file_rId2', 'Worksheet2' => 'file_rId3', 'Worksheet3' => 'file_rId4']);
 }
 /**
  * @return Styles
  */
 protected function getStyles()
 {
     if (!$this->styles) {
         $path = $this->archive->extract($this->relationships->getStylesPath());
         $this->styles = $this->stylesLoader->open($path);
     }
     return $this->styles;
 }