use Test::More tests => 48;

use strict;
use warnings;

BEGIN { use_ok("Number::Tolerant"); }

my $guess = Number::Tolerant->new(4.75 => offset => (-0.25, 0.75));

ok($guess, "created our object");

isa_ok($guess, "Number::Tolerant", " ... ");

is("$guess", "4.75 (-0.25 +0.75)", " ... stringifies properly");

ok(0.0 != $guess,         " ... 0.0 isn't equal to it");
ok(4.4 != $guess,         " ... 4.4 isn't equal to it");
ok(4.5 == $guess,         " ... 4.5 is equal to it");
ok(5.0 == $guess,         " ... 5.0 is equal to it");
ok(5.5 == $guess,         " ... 5.5 is equal to it");
ok(5.6 != $guess,         " ... 5.6 isn't equal to it");
ok(6.0 != $guess,         " ... 6.0 isn't equal to it");

ok(     4.4 < $guess,     " ... 4.4 is less than it");
ok(not( 4.5 < $guess),    " ... 4.5 isn't less than it");
ok(not( 5.0 < $guess),    " ... 5.0 isn't less than it");
ok(not( 5.5 < $guess),    " ... 5.5 isn't less than it");
ok(not( 5.6 < $guess),    " ... 5.6 isn't less than it");

ok(not( 4.4 > $guess),    " ... 4.4 isn't more than it");
ok(not( 4.5 > $guess),    " ... 4.5 isn't more than it");
ok(not( 5.0 > $guess),    " ... 5.0 isn't more than it");
ok(not( 5.5 > $guess),    " ... 5.5 isn't more than it");
ok(     5.6 > $guess,     " ... 5.6 is more than it");

is( (4    <=> $guess), -1, " ... 4    <=> it is -1");
is( (4.75 <=> $guess),  0, " ... 4.75 <=> it is 0");
is( (5    <=> $guess),  0, " ... 5    <=> it is 0");
is( (6    <=> $guess), +1, " ... 6    <=> it is +1");

# ... and now more of the same, BACKWARDS

ok($guess != 0.0,         " ... it isn't equal to 0.0");
ok($guess != 4.4,         " ... it isn't equal to 4.4");
ok($guess == 4.5,         " ... it is equal to 4.5");
ok($guess == 5.0,         " ... it is equal to 5.0");
ok($guess == 5.5,         " ... it is equal to 5.5");
ok($guess != 5.6,         " ... it isn't equal to 5.6");
ok($guess != 6.0,         " ... it isn't equal to 6.0");

ok(not( $guess < 4.4),    " ... it isn't less than 4.4");
ok(not( $guess < 4.5),    " ... it isn't less than 4.5");
ok(not( $guess < 5.0),    " ... it isn't less than 5.0");
ok(not( $guess < 5.5),    " ... it isn't less than 5.5");
ok(     $guess < 5.6,     " ... it is less than 5.6");

ok(     $guess > 4.4,     " ... it is more than 4.4");
ok(not( $guess > 4.5),    " ... it isn't more than 4.5");
ok(not( $guess > 5.0),    " ... it isn't more than 5.0");
ok(not( $guess > 5.5),    " ... it isn't more than 5.5");
ok(not( $guess > 5.6),    " ... it isn't more than 5.6");

is( ($guess <=> 4   ), +1, " ... 4    <=> it is +1");
is( ($guess <=> 4.75),  0, " ... 4.75 <=> it is  0");
is( ($guess <=> 5   ),  0, " ... 5    <=> it is  0");
is( ($guess <=> 6   ), -1, " ... 6    <=> it is -1");

{ # from_string
  my $tol = Number::Tolerant->from_string("10 (-2 +5)");
  isa_ok($tol, 'Number::Tolerant');
  is($tol, "10 (-2 +5)", "offset");
}