| line | true | false | branch | 
 
| 28 | 1 | 0 | ref $_[0] ? : | 
 
| 39 | 2 | 0 | ref $_[0] ? : | 
 
| 46 | 0 | 2 | unless defined $client_id and defined $client_secret | 
 
| 49 | 0 | 2 | if $signature_method eq 'RSA-SHA1' | 
 
| 51 | 0 | 2 | if &blessed($signature_method) and $signature_method->can('sign') or not &blessed($signature_method) and ref $signature_method eq 'CODE' | 
 
| 54 | 0 | 2 | unless defined $sign | 
 
| 63 | 1 | 1 | if defined $token | 
 
| 66 | 1 | 1 | if (defined $extra_params) | 
 
| 67 | 0 | 1 | unless ref $extra_params eq 'HASH' | 
 
| 68 | 0 | 1 | unless &all(sub {
	/^oauth_/;
}
, keys %$extra_params) | 
 
| 89 | 0 | 0 | unless defined $token_secret | 
 
| 95 | 1 | 1 | unless defined $token_secret | 
 
| 105 | 0 | 0 | if &blessed($signer) | 
 
| 113 | 0 | 2 | if $req->content_is_form | 
 
| 115 | 0 | 21 | unless $WWW::OAuth::a->[0] cmp $WWW::OAuth::b->[0] |