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|
#!./perl
BEGIN {
chdir 't' if -d 't';
require './test.pl';
set_up_inc('../lib');
}
use strict;
use warnings;
no warnings 'experimental::smartmatch';
plan tests => 55;
CORE::given(3) {
pass "CORE::given without feature flag";
}
use feature 'switch';
CORE::given(3) {
pass "CORE::given with feature flag";
}
given(3) {
pass "given with feature flag";
}
{
my $x = "foo";
is($x, "foo", "given lexical scope not started yet");
given(my $x = "bar") {
is($x, "bar", "given lexical scope starts");
}
is($x, "foo", "given lexical scope ends");
}
sub topic_is ($@) { is $_, shift, @_ }
{
local $_ = "foo";
is $_, "foo", "given dynamic scope not started yet";
topic_is "foo", "given dynamic scope not started yet";
given("bar") {
is $_, "bar", "given dynamic scope starts";
topic_is "bar", "given dynamic scope starts";
}
is $_, "foo", "given dynamic scope ends";
topic_is "foo", "given dynamic scope ends";
}
given(undef) {
is $_, undef, "folded undef topic value";
is \$_, \undef, "folded undef topic identity";
}
given(1 < 3) {
is $_, !!1, "folded true topic value";
is \$_, \!!1, "folded true topic identity";
}
given(1 > 3) {
is $_, !!0, "folded false topic value";
is \$_, \!!0, "folded false topic identity";
}
my $one = 1;
given($one && undef) {
is $_, undef, "computed undef topic value";
is \$_, \undef, "computed undef topic identity";
}
given($one < 3) {
is $_, !!1, "computed true topic value";
is \$_, \!!1, "computed true topic identity";
}
given($one > 3) {
is $_, !!0, "computed false topic value";
is \$_, \!!0, "computed false topic identity";
}
sub which_context {
return wantarray ? "list" : defined(wantarray) ? "scalar" : "void";
}
given(which_context) {
is $_, "scalar", "topic sub called without parens";
}
given(which_context()) {
is $_, "scalar", "topic sub called with parens";
}
my $ps = "foo";
given($ps) {
is $_, "foo", "padsv topic value";
is \$_, \$ps, "padsv topic identity";
}
our $gs = "bar";
given($gs) {
is $_, "bar", "gvsv topic value";
is \$_, \$gs, "gvsv topic identity";
}
my @pa = qw(a b c d e);
given(@pa) {
is $_, 5, "padav topic";
}
our @ga = qw(x y z);
given(@ga) {
is $_, 3, "gvav topic";
}
my %ph = qw(a b c d e f g h i j);
given(%ph) {
is $_, 5, "padhv topic";
}
our %gh = qw(u v w x y z);
given(%gh) {
is $_, 3, "gvhv topic";
}
given($one + 3) {
is $_, 4, "general computed topic";
}
is join(",", 111, 222,
do {
no warnings "void";
given($one, 22, $one, 33) {
is $_, 33, "list topic";
(1111, 2222);
}
},
333, 444,
), "111,222,1111,2222,333,444", "stack discipline";
given(()) {
is $_, undef, "stub topic value";
is \$_, \undef, "stub topic identity";
}
foreach my $test (
[ "no", "[aA][bB][cB][dA]" ],
[ "last", "[aA][bB][dA]" ],
[ "next", "[aA][bB][dA]" ],
[ "redo", "[aA][bB][bB][cB][dA]" ],
) {
my($loopex, $expect_act) = @$test;
my $act = "";
my $i = 0;
{
local $_ = "A";
$act .= "[a$_]";
given("B") {
$act .= "[b$_]";
$i++;
if($i < 2) {
if($loopex eq "last") {
last;
} elsif($loopex eq "next") {
next;
} elsif($loopex eq "redo") {
redo;
}
}
$act .= "[c$_]";
}
$act .= "[d$_]";
}
is $act, $expect_act, "given unlabelled $loopex loop exit";
$act = "";
$i = 0;
{
local $_ = "A";
$act .= "[a$_]";
G: given("B") {
$act .= "[b$_]";
{
$i++;
if($i < 2) {
if($loopex eq "last") {
last G;
} elsif($loopex eq "next") {
next G;
} elsif($loopex eq "redo") {
redo G;
}
}
}
$act .= "[c$_]";
}
$act .= "[d$_]";
}
is $act, $expect_act, "given labelled $loopex loop exit";
$act = "";
$i = 0;
{
local $_ = "A";
$act .= "[a$_]";
given("B") {
$act .= "[b$_]";
{
$i++;
if($i < 2) {
if($loopex eq "last") {
last;
} elsif($loopex eq "next") {
next;
} elsif($loopex eq "redo") {
redo;
}
}
}
$act .= "[c$_]";
}
$act .= "[d$_]";
}
is $act, "[aA][bB][cB][dA]", "interior $loopex loop exit";
$act = "";
$i = 0;
{
local $_ = "A";
$act .= "[a$_]";
B: {
local $_ = "B";
$act .= "[b$_]";
given("C") {
$i++;
if($i < 2) {
if($loopex eq "last") {
last B;
} elsif($loopex eq "next") {
next B;
} elsif($loopex eq "redo") {
redo B;
}
}
}
$act .= "[c$_]";
}
$act .= "[d$_]";
}
is $act, $expect_act, "exterior $loopex loop exit";
}
1;
|
