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use Set::Object;
use Test::More tests => 18;
use strict;
my $s = Set::Object->new;
is($s->size, 0, "new set size is 0");
ok($s->is_null, "->is_null()");
is($s, "Set::Object()", "stringify");
$s += "a";
is($s->size, 1, "->size()");
ok(!$s->is_null, "->is_null()");
is($s, "Set::Object(a)", "stringify");
$s += "a";
is($s->size, 1, "->size()");
ok(!$s->is_null, "->is_null()");
is($s, "Set::Object(a)", "stringify");
$s += "b";
$s += "c";
$s += "d";
$s += "e";
is($s->size, 5, "->size()");
ok(!$s->is_null, "->is_null()");
is($s, "Set::Object(a b c d e)", "stringify");
$s -= "b";
$s -= "d";
is($s->size, 3, "->size()");
ok(!$s->is_null, "->is_null()");
is($s, "Set::Object(a c e)", "stringify");
$s /= "b";
$s /= "c";
$s /= "d";
is($s->size, 4, "->size()");
ok(!$s->is_null, "->is_null()");
is($s, "Set::Object(a b d e)", "stringify");
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