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use 5.008001;
use strict;
use warnings;
use utf8;

use Test::More 0.96;

binmode( Test::More->builder->$_, ":utf8" )
  for qw/output failure_output todo_output/;

use lib 't/lib';
use lib 't/pvtlib';
use CleanEnv;
use TestUtils;

use BSON qw/encode decode/;
use BSON::Types ':all';

my ( $bson, $expect, $hash );

my $packed = BSON::OID::_packed_oid();
my $hexoid = unpack( "H*", $packed );
my $all_bits = "\xff" x 8;

# test constructors
is( length( bson_oid()->oid ), 12,      "empty bson_oid() generates new OID" );
is( length( bson_oid()->from_epoch(time)->oid ), 12,
    "from_epoch(time) generates new OID" );
is( length( bson_oid()->from_epoch(time, 0)->oid ), 12,
    "from_epoch(time, 0) generates new OID" );
is( length( bson_oid()->from_epoch(time, $all_bits)->oid ), 12,
    'from_epoch(time, "\xff"x8) generates new OID' );
is( bson_oid($packed)->oid,    $packed, "bson_oid(\$packed) returns packed" );
is( bson_oid($hexoid)->oid,    $packed, "bson_oid(\$hexoid) returns packed" );

is( length( BSON::OID->new()->oid ), 12,
    "empty BSON::OID->new() generates new OID" );
is( length( BSON::OID->from_epoch(time)->oid ), 12,
    "BSON::OID->from_epoch(time) generates new OID" );
is( BSON::OID->new(oid => $packed)->oid,
    $packed, "BSON::OID->new(\$packed) returns packed" );

# test overloading
is( bson_oid($packed), $hexoid, "BSON::OID string overload" );

# test comparison
my ($oid1, $oid2) = (bson_oid(), bson_oid());
is( $oid1 cmp $oid1, 0, "BSON::OID cmp overload (0)" );
is( $oid1 cmp $oid2, -1, "BSON::OID cmp overload (-1)" );
is( $oid2 cmp $oid1, 1, "BSON::OID cmp overload (1)" );
is( $oid1 <=> $oid1, 0, "BSON::OID <=> overload (0)" );
is( $oid1 <=> $oid2, -1, "BSON::OID <=> overload (-1)" );
is( $oid2 <=> $oid1, 1, "BSON::OID <=> overload (1)" );

# BSON::OID -> BSON::OID
$bson = $expect = encode( { A => bson_oid($packed) } );
$hash = decode($bson);
is( ref( $hash->{A} ), 'BSON::OID', "BSON::OID->BSON::OID" );
is( "$hash->{A}",      $hexoid,     "value correct" );

# BSON::OID from_epoch
my $epoch = 1467545180;
my $packed_zero = pack('N3', $epoch, 0, 0);
my $packed_ones = pack('Na8', $epoch, $all_bits);
is( BSON::OID->from_epoch($epoch)->get_time, $epoch, "from_epoch(time) time roundtrip ok" );
is( BSON::OID->from_epoch($epoch, 0)->oid, $packed_zero,
    "from_epoch(time, 0) OID is correct" );
is( BSON::OID->from_epoch($epoch, "0")->oid, $packed_zero,
    "from_epoch(time, \"0\") OID is correct" );
is( BSON::OID->from_epoch($epoch, "000000")->oid, $packed_zero,
    "from_epoch(time, \"0000\") OID is correct" );
is( BSON::OID->from_epoch($epoch, $all_bits)->oid, $packed_ones,
    "from_epoch(time, \"\\xff\"x8) roundtrip ok" );
is( bson_oid->from_epoch($epoch, $all_bits)->oid, $packed_ones,
    "bson_oid->from_epoch(time, \"\\xff\"x8) roundtrip ok" );
eval { BSON::OID->from_epoch($epoch, "123") };
like( $@, qr/second argument/, "second arg must be zero or eight byts" );

# BSON::ObjectId (deprecated) -> BSON::OID
$hash = encode( { A => BSON::ObjectId->new($packed) } );
$hash = decode($bson);
is( ref( $hash->{A} ), 'BSON::OID', "BSON::ObjectId->BSON::OID" );
is( "$hash->{A}",      $hexoid,     "value correct" );
is( $bson,             $expect,     "BSON correct" );

# MongoDB::OID (deprecated) -> BSON::OID
SKIP: {
    $ENV{PERL_MONGO_NO_DEP_WARNINGS} = 1;
    eval { require MongoDB; require MongoDB::OID; };
    skip( "MongoDB::OID not installed", 2 )
      unless $INC{'MongoDB/OID.pm'};
    $bson = encode( { A => MongoDB::OID->new( value => $hexoid ) } );
    $hash = decode($bson);
    is( ref( $hash->{A} ), 'BSON::OID', "MongoDB::OID->BSON::OID" );
    is( "$hash->{A}",      $hexoid,     "value correct" );
    is( $bson,             $expect,     "BSON correct" );
}

done_testing;

#
# This file is part of BSON-XS
#
# This software is Copyright (c) 2018 by MongoDB, Inc.
#
# This is free software, licensed under:
#
#   The Apache License, Version 2.0, January 2004
#
#
# vim: set ts=4 sts=4 sw=4 et tw=75:

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