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#!perl
use strict;
use warnings;
use Test::More tests => 15;
use Math::BigInt;
my $x;
###############################################################################
# Scalar context.
###############################################################################
my $y;
# Finite numbers.
$x = Math::BigInt -> new("-20");
$y = $x -> blucas();
is($y, "-15127", "blucas(-20)");
$x = Math::BigInt -> new("-15");
$y = $x -> blucas();
is($y, "1364", "blucas(-15)");
$x = Math::BigInt -> new("-2");
$y = $x -> blucas();
is($y, "-3", "blucas(-2)");
$x = Math::BigInt -> new("-1");
$y = $x -> blucas();
is($y, "1", "blucas(-1)");
$x = Math::BigInt -> new("0");
$y = $x -> blucas();
is($y, "2", "blucas(0)");
$x = Math::BigInt -> new("1");
$y = $x -> blucas();
is($y, "1", "blucas(1)");
$x = Math::BigInt -> new("2");
$y = $x -> blucas();
is($y, "3", "blucas(2)");
$x = Math::BigInt -> new("15");
$y = $x -> blucas();
is($y, "1364", "blucas(15)");
$x = Math::BigInt -> new("20");
$y = $x -> blucas();
is($y, "15127", "blucas(20)");
$x = Math::BigInt -> new("250");
$y = $x -> blucas();
is($y, "17656721319717734662791328845675730903632844218828123", "blucas(250)");
# Infinites and NaN.
$x = Math::BigInt -> binf("+");
$y = $x -> blucas();
is($y, "inf", "blucas(+inf)");
$x = Math::BigInt -> binf("-");
$y = $x -> blucas();
is($y, "NaN", "blucas(-inf)");
$x = Math::BigInt -> bnan();
$y = $x -> blucas();
is($y, "NaN", "blucas(NaN)");
###############################################################################
# List context.
###############################################################################
my @y;
$x = Math::BigInt -> new("10");
@y = $x -> blucas();
is_deeply(\@y, [2, 1, 3, 4, 7, 11, 18, 29, 47, 76, 123], "blucas(10)");
$x = Math::BigInt -> new("-10");
@y = $x -> blucas();
is_deeply(\@y, [2, 1, -3, 4, -7, 11, -18, 29, -47, 76, -123], "blucas(-10)");
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