# Before `make install' is performed this script should be runnable with
# `make test'. After `make install' it should work as `perl test.pl'

######################### We start with some black magic to print on failure.
# Change 1..1 below to 1..last_test_to_print .
# (It may become useful if the test is moved to ./t subdirectory.)

BEGIN { $| = 1; print "1..19\n"; }
END {print "not ok 1\n" unless $loaded;}

use Net::DNS::Codes qw(:all );
use Net::DNS::ToolKit qw(
	newhead
	put_qdcount
	get1char
	parse_char
);
use Net::DNS::ToolKit::Debug qw(
	print_head
	print_buf
);
use Net::DNS::ToolKit::RR;

$loaded = 1;
print "ok 1\n";
######################### End of black magic.

# Insert your test code below (better if it prints "ok 13"
# (correspondingly "not ok 13") depending on the success of chunk 13
# of the test code):

$test = 2;

sub ok {
  print "ok $test\n";
  ++$test;
}

sub expect {
  my $x = shift;
  my @exp;
  foreach(split(/\n/,$x)) {
    if ($_ =~ /0x\w+\s+(\d+) /) {
      push @exp,$1;
    }
  }
  return @exp;
}

sub print_ptrs {
  foreach(@_) {
    print "$_ ";
  }
  print "\n";
}

sub chk_exp {
  my($bp,$exp) = @_;
  my @expect = expect($$exp);
  foreach(0..length($$bp) -1) {
    $char = get1char($bp,$_);
    next if $char == $expect[$_];
    print "buffer mismatch $_, got: $char, exp: $expect[$_]\nnot ";
    last;
  }
  &ok;
}

my ($get,$put,$parse) = new Net::DNS::ToolKit::RR;

## test 2	generate a header for a question

my $buffer = '';
my $off = newhead(\$buffer,
	12345,			# id
	QR | BITS_QUERY | RD | RA,	# query response, query, recursion desired, recursion available
);

print "bad question size $off\nnot "
	unless $off == NS_HFIXEDSZ;
&ok;

## test 3	append question
# expect this from print_buf
my $exptext = q(
  0     :  0011_0000  0x30   48  0  
  1     :  0011_1001  0x39   57  9  
  2     :  1000_0001  0x81  129    
  3     :  1000_0000  0x80  128    
  4     :  0000_0000  0x00    0    
  5     :  0000_0001  0x01    1    
  6     :  0000_0000  0x00    0    
  7     :  0000_0000  0x00    0    
  8     :  0000_0000  0x00    0    
  9     :  0000_0000  0x00    0    
  10    :  0000_0000  0x00    0    
  11    :  0000_0000  0x00    0    
  12    :  0000_0011  0x03    3    
  13    :  0110_0110  0x66  102  f  
  14    :  0110_1111  0x6F  111  o  
  15    :  0110_1111  0x6F  111  o  
  16    :  0000_0011  0x03    3    
  17    :  0110_0010  0x62   98  b  
  18    :  0110_0001  0x61   97  a  
  19    :  0111_0010  0x72  114  r  
  20    :  0000_0011  0x03    3    
  21    :  0110_0011  0x63   99  c  
  22    :  0110_1111  0x6F  111  o  
  23    :  0110_1101  0x6D  109  m  
  24    :  0000_0000  0x00    0    
  25    :  0000_0000  0x00    0    
  26    :  0000_1111  0x0F   15    
  27    :  0000_0000  0x00    0    
  28    :  0000_0001  0x01    4    
);
my $name = 'foo.bar.com';
my @dnptrs;
my $type = T_MX;
my $class = C_HS;

(my $newoff,@dnptrs) = $put->Question(\$buffer,$off,$name,$type,$class);
put_qdcount(\$buffer,1);
#print_head(\$buffer);
#print_buf(\$buffer);
#print_ptrs(@dnptrs);
#print $newoff,"\n";
chk_exp(\$buffer,\$exptext);

## test 4	check offset
print "bad offset, $newoff, exp: 29\nnot "
	unless $newoff == 29;
&ok;

## test	5	get Question, check name
($newoff,$newname,$newtype,$newclass) = $get->Question(\$buffer,$off);
print "bad name, $newname, exp: $name\nnot "
	unless $newname eq $name;
&ok;

## test 6	check type
print "bad type: ",TypeTxt->{$newtype},", exp: ",TypeTxt->{$type},"\nnot "
	unless $newtype == $type;
&ok;

## test 7	check class
print "bad type: ",ClassTxt->{$newclass},", exp: ",ClassTxt->{$class},"\nnot "
	unless $newclass == $class;
&ok;

## test 8	parse record, check name .. should be pass thru
($name,$type,$class) = $parse->Question($newname,$newtype,$newclass);
print "bad name, $name, exp: $newname.\nnot "
	unless $newname.'.' eq $name;
&ok;

## test 9	check type
print "bad type: $type, exp: ",TypeTxt->{$newtype},"\nnot "
	unless $type eq TypeTxt->{$newtype};
&ok;

## test 10	check class
print "bad class: $class, exp: ",ClassTxt->{$newclass},"\nnot "
	unless $class eq ClassTxt->{$newclass};
&ok;

############ repeat, but with external class generation

($get,$put,$parse) = new Net::DNS::ToolKit::RR(C_IN);

## test 11	generate a header for a question

$buffer = '';
$off = newhead(\$buffer,
	12345,			# id
	QR | BITS_QUERY | RD | RA,	# query response, query, recursion desired, recursion available
);

print "bad question size $off\nnot "
	unless $off == NS_HFIXEDSZ;
&ok;

## test 12	append question
# expect this from print_buf
$exptext = q(
  0     :  0011_0000  0x30   48  0  
  1     :  0011_1001  0x39   57  9  
  2     :  1000_0001  0x81  129    
  3     :  1000_0000  0x80  128    
  4     :  0000_0000  0x00    0    
  5     :  0000_0001  0x01    1    
  6     :  0000_0000  0x00    0    
  7     :  0000_0000  0x00    0    
  8     :  0000_0000  0x00    0    
  9     :  0000_0000  0x00    0    
  10    :  0000_0000  0x00    0    
  11    :  0000_0000  0x00    0    
  12    :  0000_0011  0x03    3    
  13    :  0110_0110  0x66  102  f  
  14    :  0110_1111  0x6F  111  o  
  15    :  0110_1111  0x6F  111  o  
  16    :  0000_0011  0x03    3    
  17    :  0110_0010  0x62   98  b  
  18    :  0110_0001  0x61   97  a  
  19    :  0111_0010  0x72  114  r  
  20    :  0000_0011  0x03    3    
  21    :  0110_0011  0x63   99  c  
  22    :  0110_1111  0x6F  111  o  
  23    :  0110_1101  0x6D  109  m  
  24    :  0000_0000  0x00    0    
  25    :  0000_0000  0x00    0    
  26    :  0000_1111  0x0F   15    
  27    :  0000_0000  0x00    0    
  28    :  0000_0001  0x01    1    
);
$name = 'foo.bar.com';
$type = T_MX;

($newoff,@dnptrs) = $put->Question(\$buffer,$off,$name,$type);
put_qdcount(\$buffer,1);
#print_head(\$buffer);
#print_buf(\$buffer);
#print_ptrs(@dnptrs);
#print $newoff,"\n";
chk_exp(\$buffer,\$exptext);

## test 13	check offset
print "bad offset, $newoff, exp: 29\nnot "
	unless $newoff == 29;
&ok;

## test	14	get Question, check name
($newoff,$newname,$newtype,$newclass) = $get->Question(\$buffer,$off);
print "bad name, $newname, exp: $name\nnot "
	unless $newname eq $name;
&ok;

## test 15	check type
print "bad type: ",TypeTxt->{$newtype},", exp: ",TypeTxt->{$type},"\nnot "
	unless $newtype == $type;
&ok;

## test 16	check class
$class = C_IN;
print "bad type: ",ClassTxt->{$newclass},", exp: ",ClassTxt->{$class},"\nnot "
	unless $newclass == $class;
&ok;

## test 17	parse record, check name .. should be pass thru
($name,$type,$class) = $parse->Question($newname,$newtype,$newclass);
print "bad name, $name, exp: $newname.\nnot "
	unless $newname.'.' eq $name;
&ok;

## test 18	check type
print "bad type: $type, exp: ",TypeTxt->{$newtype},"\nnot "
	unless $type eq TypeTxt->{$newtype};
&ok;

## test 19	check class
print "bad class: $class, exp: ",ClassTxt->{$newclass},"\nnot "
	unless $class eq ClassTxt->{$newclass};
&ok;