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use v6;
use Test;
plan 52;
# L<S02/Names and Variables/:exists>
# L<S32::Containers/"Array"/=item exists>
#?niecza skip "no adverbials"
{
my @array = <a b c d>;
ok @array[0]:exists, "exists(positive index) on arrays (1)";
ok @array[1]:exists, "exists(positive index) on arrays (2)";
ok @array[2]:exists, "exists(positive index) on arrays (3)";
ok @array[3]:exists, "exists(positive index) on arrays (4)";
ok @array[4]:!exists, "exists(positive index) on arrays (5)";
nok @array[42]:exists, "exists(positive index) on arrays (6)";
}
#-------------------------------------------------------------------------------
# initialisations
my $default = Any;
my $dont = False;
sub gen_array { (1..10).list }
#-------------------------------------------------------------------------------
# Array
{
my @a = gen_array;
is @a.elems, 10, "basic sanity";
#?niecza 4 skip "no adverbials"
isa-ok @a[ 3]:exists, Bool, "Bool test for exists single element";
isa-ok @a[ 3]:!exists, Bool, "!Bool test for exists single element";
isa-ok @a[10]:exists, Bool, "Bool test for non-exists single element";
isa-ok @a[10]:!exists, Bool, "!Bool test for non-exists single element";
ok @a[ 3]:exists, "Test for exists single element";
ok !(@a[10]:exists), "Test for non-exists single element";
#?niecza 10 skip "no adverbials"
ok !(@a[ 9]:!exists), "Test non-exists with ! single elem 9";
ok @a[10]:!exists, "Test non-exists with ! single elem 10";
ok !(@a[ 9]:exists(0)), "Test non-exists with (0) single elem 9";
ok @a[10]:exists(0), "Test non-exists with (0) single elem 10";
ok !(@a[ 9]:exists(False)), "Test non-exists with (False) single elem 9";
ok @a[10]:exists(False), "Test non-exists with (False) single elem 10";
ok !(@a[ 9]:exists($dont)), "Test non-exists with (\$dont) single elem 9";
ok @a[10]:exists($dont), "Test non-exists with (\$dont) single elem 10";
ok @a[ 9]:exists(1), "Test exists with (1) single elem 9";
ok !(@a[10]:exists(1)), "Test exists with (1) single elem 10";
is-deeply @a[1,2, 4]:exists, (True, True, True), "Test exists TTT";
is-deeply @a[1,2,10]:exists, (True, True, False), "Test exists TTF";
is-deeply (@a[]:exists), True xx 10, "Test non-exists T[]";
is-deeply (@a[*]:exists), True xx 10, "Test non-exists T[*]";
#?niezca 3 todo "adverbial pairs only used as True"
is-deeply @a[1,2, 4]:!exists, (False,False,False), "Test non-exists FFF";
is-deeply @a[1,2,10]:!exists, (False,False,True), "Test non-exists FFT";
is-deeply (@a[]:!exists), False xx 10, "Test non-exists F[]";
is-deeply (@a[*]:!exists), False xx 10, "Test non-exists F[*]";
#?niezca 6 todo "no combined adverbial pairs"
is-deeply @a[1,2, 4]:exists:kv,
(1,True,2,True,4,True), "Test exists:kv TTT";
is-deeply @a[1,2,10]:exists:kv,
(1,True,2,True), "Test exists:kv TT.";
is-deeply @a[1,2,10]:exists:!kv,
(1,True,2,True,10,False), "Test exists:!kv TTF";
is-deeply @a[1,2, 4]:!exists:kv,
(1,False,2,False,4,False), "Test !exists:kv FFF";
is-deeply @a[1,2,10]:!exists:kv,
(1,False,2,False), "Test !exists:kv FF.";
is-deeply @a[1,2,10]:!exists:!kv,
(1,False,2,False,10,True), "Test !exists:kv FFT";
#?niezca 6 todo "no combined adverbial pairs"
is-deeply @a[1,2, 4]:exists:p,
(1=>True,2=>True,4=>True), "Test exists:p TTT";
is-deeply @a[1,2,10]:exists:p,
(1=>True,2=>True), "Test exists:p TT.";
is-deeply @a[1,2,10]:exists:!p,
(1=>True,2=>True,10=>False), "Test exists:!p TTF";
is-deeply @a[1,2, 4]:!exists:p,
(1=>False,2=>False,4=>False), "Test !exists:p FFF";
is-deeply @a[1,2,10]:!exists:p,
(1=>False,2=>False), "Test !exists:p FF.";
is-deeply @a[1,2,10]:!exists:!p,
(1=>False,2=>False,10=>True), "Test !exists:!p FFT";
#?niezca 6 todo "no combined adverbial pairs"
dies-ok { @a[1]:exists:k }, "Test exists:k, invalid combo";
dies-ok { @a[1]:exists:!k }, "Test exists:!k, invalid combo";
dies-ok { @a[1]:!exists:k }, "Test !exists:k, invalid combo";
dies-ok { @a[1]:!exists:!k }, "Test !exists:!k, invalid combo";
#?niezca 6 todo "no combined adverbial pairs"
dies-ok { @a[1]:exists:v }, "Test exists:v, invalid combo";
dies-ok { @a[1]:exists:!v }, "Test exists:!v, invalid combo";
dies-ok { @a[1]:!exists:v }, "Test !exists:v, invalid combo";
dies-ok { @a[1]:!exists:!v }, "Test !exists:!v, invalid combo";
is @a.elems, 10, "should be untouched";
} #46
# vim: ft=perl6
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