Devise\Languages\LanguageDetector::update PHP Method

    public function update($language)
    {
        $this->LocaleDetector->update($language->code);
    }

 public function test_it_can_update_language()
 {
     $LocaleDetector = m::mock('Devise\\Languages\\LocaleDetector');
     $LocaleDetector->shouldReceive('update')->times(1);
     $LanguageDetector = new LanguageDetector($LocaleDetector, new \DvsLanguage());
     $LanguageDetector->update(new \DvsLanguage());
 }