public function testGetFilters()
 {
     $filters = $this->extension->getFilters();
     $this->assertCount(7, $filters);
     $this->assertInstanceOf('Twig_SimpleFilter', $filters[0]);
     $this->assertEquals('oro_format_number', $filters[0]->getName());
     $this->assertInstanceOf('Twig_SimpleFilter', $filters[1]);
     $this->assertEquals('oro_format_currency', $filters[1]->getName());
     $this->assertInstanceOf('Twig_SimpleFilter', $filters[2]);
     $this->assertEquals('oro_format_decimal', $filters[2]->getName());
     $this->assertInstanceOf('Twig_SimpleFilter', $filters[3]);
     $this->assertEquals('oro_format_percent', $filters[3]->getName());
     $this->assertInstanceOf('Twig_SimpleFilter', $filters[4]);
     $this->assertEquals('oro_format_spellout', $filters[4]->getName());
     $this->assertInstanceOf('Twig_SimpleFilter', $filters[5]);
     $this->assertEquals('oro_format_duration', $filters[5]->getName());
     $this->assertInstanceOf('Twig_SimpleFilter', $filters[6]);
     $this->assertEquals('oro_format_ordinal', $filters[6]->getName());
 }