public function testAddStyle()
{
$styler = new Styler();
$initialXml = $styler->getStyleSheetXml();
$styler->addStyle(new Style());
$this->assertEquals($initialXml, $styler->getStyleSheetXml());
$style = new Style();
$styler->addStyle($style->setFontBold());
$oneNewStyleXml = $styler->getStyleSheetXml();
$this->assertNotEquals($initialXml, $oneNewStyleXml);
$styler->addStyle($style->setFontBold());
$this->assertEquals($oneNewStyleXml, $styler->getStyleSheetXml());
}
/**
* Write style xml file.
*/
private function finalizeStyles()
{
$this->zip->addFromString('xl/styles.xml', $this->styler->getStyleSheetXml());
}
