public function testGetVerbosityFlag()
{
$method = new \ReflectionMethod($this->handler, 'getVerbosityFlag');
$method->setAccessible(true);
$this->assertEquals('', $method->invokeArgs($this->handler, [$this->getComposerEvent()]));
$this->assertEquals(' -v', $method->invokeArgs($this->handler, [$this->getComposerEvent([], 'isVerbose')]));
$this->assertEquals(' -vv', $method->invokeArgs($this->handler, [$this->getComposerEvent([], 'isVeryVerbose')]));
$this->assertEquals(' -vvv', $method->invokeArgs($this->handler, [$this->getComposerEvent([], 'isDebug')]));
}