public function throwsExceptionWhenFormatterDoesNotExist()
{
$mockObjectManager = $this->createMock(ObjectManagerInterface::class);
$mockObjectManager->expects($this->at(0))->method('isRegistered')->with('foo')->will($this->returnValue(false));
$mockObjectManager->expects($this->at(1))->method('isRegistered')->with('Neos\\Flow\\I18n\\Formatter\\FooFormatter')->will($this->returnValue(false));
$formatResolver = new I18n\FormatResolver();
$formatResolver->injectObjectManager($mockObjectManager);
$formatResolver->resolvePlaceholders('{0,foo}', [123], $this->sampleLocale);
}