isParsed() public method

Has this Command instance parsed its arguments?
public isParsed ( ) : boolean
return boolean
 public function testImplicitAndExplicitParse()
 {
     // Implicit
     $tokens = array('filename', 'arg1', 'arg2', 'arg3');
     $cmd = new Command($tokens);
     $this->assertFalse($cmd->isParsed());
     $val = $cmd[0];
     $this->assertTrue($cmd->isParsed());
     // Explicit
     $cmd = new Command($tokens);
     $this->assertFalse($cmd->isParsed());
     $cmd->parse();
     $this->assertTrue($cmd->isParsed());
 }