Skip to content


Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

111 lines (91 sloc) 3.539 kb
use v6;
use Test;
plan *;
# Very basic enum tests
# L<S12/Enumerations/values are specified as a list>
enum Day <Sun Mon Tue Wed Thu Fri Sat>;
is Day::Sun, 0, 'First item of an enum is 0';
is Day::Sat, 6, 'Last item has the right value';
is Sun, 0, 'Values exported into namespace too.';
is Sat, 6, 'Values exported into namespace too.';
# check that the values can be used for ordinary tasks, like
# constructing ranges
isa_ok (Mon..Wed), Range, 'Can construct ranges from Enum values';
is Mon + Tue, Wed, 'Can do arithmetics with Enum values';
my $x = 'Today' but Day::Mon;
ok $x.does(Day), 'Can test with .does() for enum type';
#?rakudo 1 skip '.does for enum value - XXX is this really valid test? asked TimToady...'
ok $x.does(Day::Mon), 'Can test with .does() for enum value';
ok $x ~~ Day, 'Can smartmatch for enum type';
ok $x ~~ Day::Mon, 'Can Smartmatch for enum value';
my $check = 0;
given $x {
when Day::Mon { $check = 1 }
when Day::Tue { $check = 2 }
is $check, 1, 'given/when with enum values';
$check = 0;
given $x {
when Tue { $check = 1 }
when Mon { $check = 2 }
is $check, 2, 'given/when with enum values';
# usually we don't test explicit value for .perl, but here
# it's specced, so we make an exception
is Day::Mon.perl, 'Day::Mon', '.perl on long form of Enum value';
is Mon.perl, 'Day::Mon', '.perl on short form of Enum value';
is, 'Mon', '.name on long form of Enum value';
is, 'Mon', '.name on short form of Enum value';
is Day::Mon.WHAT, 'Day()', '.WHAT on enum value stringifies to the enum name';
enum roman (i => 1, v => 5,
x => 10, l => 50,
c => 100, d => 500,
m => 1000);
is v, 5, 'enum with parens works and non-0 starting point works';
is v.perl, 'roman::v', '.perl works on enum with parens';
is, 'v', '.name works on enum with parens';
enum JustOne <Thing>;
is JustOne::Thing, 0, 'Enum of one element works.';
lives_ok { enum Empty < > }, "empty enum can be constructed";
eval_lives_ok 'enum Empty2 ()', 'empty enum with () can be constructed';
enum Color <white gray black>;
my Color $c1 = Color::white;
is($c1, 0, 'can assign enum value to typed variable with long name');
my Color $c2 = white;
is($c1, 0, 'can assign enum value to typed variable with short name');
dies_ok({ my Color $c3 = "for the fail" }, 'enum as a type enforces checks');
# L<S12/Enumerations/"Like type names, enum names are parsed as standalone tokens">
# conflict between subs and enums
my sub white { 'sub' };
#?rakudo todo 'subs and enums with conflicting names'
is white, 0, 'short name of the enum without parenthesis is an enum';
is white(), 'sub', 'short name with parenthesis is a sub';
# L<S12/Enumerations/"define a .pick method">
lives_ok { my Color $k = Color.pick }, 'Color.pick assigns to Color var';
isa_ok Color.pick, Color.pick.WHAT, 'Color.pick.isa';
ok ?(Color.pick == any(Color::white, Color::gray, Color::black)),
'.pick on enums';
ok Color.pick(2) == 2, '.pick(2) on enums';
#?rakudo skip 'RT 71460: Null PMC access'
enum RT71460::Bug <rt71460 bug71460 ticket71460>;
is bug71460, 1, 'enum element of enum with double colons is in namespace';
# vim: ft=perl6
Jump to Line
Something went wrong with that request. Please try again.