calculateServiceResolutionTime() public method

Calculate the time to resolve a service in microseconds.
public calculateServiceResolutionTime ( string $identifier ) : string
$identifier string
return string
 public function testThatAServiceResolutionTimeCanBeCalculated()
 {
     $container = m::mock('Illuminate\\Container\\Container');
     $container->shouldReceive('make')->once()->andReturn('bar');
     $command = new Command();
     $command->setLaravel($container);
     $result = $command->calculateServiceResolutionTime('foo');
     $this->assertTrue(is_numeric($result));
     $this->assertTrue($result > 0);
 }