BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
+ require './test.pl';
}
use strict;
use warnings;
-use Test::More tests => 113;
+plan tests => 128;
# The behaviour of the feature pragma should be tested by lib/switch.t
# using the tests in t/lib/switch/*. This file tests the behaviour of
# the switch ops themselves.
-
use feature 'switch';
-no warnings "numeric";
eval { continue };
like($@, qr/^Can't "continue" outside/, "continue outside");
is($ok, 1, "Given(0) when($undef++)");
}
{
+ no warnings "uninitialized";
my $ok = 1;
given (undef) { when(0) {$ok = 0} }
is($ok, 1, "Given(undef) when(0)");
}
{
+ no warnings "uninitialized";
my $undef;
my $ok = 1;
given ($undef) { when(0) {$ok = 0} }
is($ok, 1, 'Given("") when($undef)');
}
{
+ no warnings "uninitialized";
my $ok = 1;
given (undef) { when("") {$ok = 0} }
is($ok, 1, 'Given(undef) when("")');
}
{
+ no warnings "uninitialized";
my $undef;
my $ok = 1;
given ($undef) { when("") {$ok = 0} }
is($ok, 'y', "Optimized-away comparison");
}
+{
+ my $ok;
+ given(23) {
+ when (scalar 24) { $ok = 'n'; continue }
+ default { $ok = 'y' }
+ }
+ is($ok,'y','scalar()');
+}
+
# File tests
# (How to be both thorough and portable? Pinch a few ideas
# from t/op/filetest.t. We err on the side of portability for
my $n = 0;
for my $l qw(a b c d) {
given ($l) {
+ when ($_ eq "b" .. $_ eq "c") { $n = 1 }
+ default { $n = 0 }
+ }
+ ok(($n xor $l =~ /[ad]/), 'when(E1..E2) evaluates in boolean context');
+ }
+}
+
+{
+ my $n = 0;
+ for my $l qw(a b c d) {
+ given ($l) {
when ($_ eq "b" ... $_ eq "c") { $n = 1 }
default { $n = 0 }
}
my $ok;
$v = undef;
is($f->count(), 0, "Sanity check: $test_name");
+ no warnings "uninitialized";
given(my $undef) {
when(sub{0}->()) {}
when("21") {}
# Code references
{
- no warnings "redefine";
my $called_foo = 0;
sub foo {$called_foo = 1; "@_" eq "foo"}
my $called_bar = 0;
{ package OverloadTest;
use overload '""' => sub{"string value of obj"};
+ use overload 'eq' => sub{"$_[0]" eq "$_[1]"};
use overload "~~" => sub {
my ($self, $other, $reversed) = @_;
default {$matched = 0}
}
- is($obj->{called}, 1, "$test: called");
+ is($obj->{called}, 1, "$test: called");
ok($matched, "$test: matched");
- is($obj->{left}, "string value of obj", "$test: left");
- is($obj->{right}, "other arg", "$test: right");
- ok(!$obj->{reversed}, "$test: not reversed");
}
{
when ("other arg") {$matched = 1}
}
- is($obj->{called}, 1, "$test: called");
+ is($obj->{called}, 1, "$test: called");
ok(!$matched, "$test: not matched");
- is($obj->{left}, "string value of obj", "$test: left");
- is($obj->{right}, "other arg", "$test: right");
- ok(!$obj->{reversed}, "$test: not reversed");
}
{
ok($obj->{reversed}, "$test: reversed");
}
}
+
+# Postfix when
+{
+ my $ok;
+ given (undef) {
+ $ok = 1 when undef;
+ }
+ is($ok, 1, "postfix undef");
+}
+{
+ my $ok;
+ given (2) {
+ $ok += 1 when 7;
+ $ok += 2 when 9.1685;
+ $ok += 4 when $_ > 4;
+ $ok += 8 when $_ < 2.5;
+ }
+ is($ok, 8, "postfix numeric");
+}
+{
+ my $ok;
+ given ("apple") {
+ $ok = 1, continue when $_ eq "apple";
+ $ok += 2;
+ $ok = 0 when "banana";
+ }
+ is($ok, 3, "postfix string");
+}
+{
+ my $ok;
+ given ("pear") {
+ do { $ok = 1; continue } when /pea/;
+ $ok += 2;
+ $ok = 0 when /pie/;
+ default { $ok += 4 }
+ $ok = 0;
+ }
+ is($ok, 7, "postfix regex");
+}
+# be_true is defined at the beginning of the file
+{
+ my $x = "what";
+ given(my $x = "foo") {
+ do {
+ is($x, "foo", "scope inside ... when my \$x = ...");
+ continue;
+ } when be_true(my $x = "bar");
+ is($x, "bar", "scope after ... when my \$x = ...");
+ }
+}
+{
+ my $x = 0;
+ given(my $x = 1) {
+ my $x = 2, continue when be_true();
+ is($x, undef, "scope after my \$x = ... when ...");
+ }
+}
+
+# Tests for last and next in when clauses
+my $letter;
+
+$letter = '';
+for ("a".."e") {
+ given ($_) {
+ $letter = $_;
+ when ("b") { last }
+ }
+ $letter = "z";
+}
+is($letter, "b", "last in when");
+
+$letter = '';
+LETTER1: for ("a".."e") {
+ given ($_) {
+ $letter = $_;
+ when ("b") { last LETTER1 }
+ }
+ $letter = "z";
+}
+is($letter, "b", "last LABEL in when");
+
+$letter = '';
+for ("a".."e") {
+ given ($_) {
+ when (/b|d/) { next }
+ $letter .= $_;
+ }
+ $letter .= ',';
+}
+is($letter, "a,c,e,", "next in when");
+
+$letter = '';
+LETTER2: for ("a".."e") {
+ given ($_) {
+ when (/b|d/) { next LETTER2 }
+ $letter .= $_;
+ }
+ $letter .= ',';
+}
+is($letter, "a,c,e,", "next LABEL in when");
+
+# Test goto with given/when
+{
+ my $flag = 0;
+ goto GIVEN1;
+ $flag = 1;
+ GIVEN1: given ($flag) {
+ when (0) { break; }
+ $flag = 2;
+ }
+ is($flag, 0, "goto GIVEN1");
+}
+{
+ my $flag = 0;
+ given ($flag) {
+ when (0) { $flag = 1; }
+ goto GIVEN2;
+ $flag = 2;
+ }
+GIVEN2:
+ is($flag, 1, "goto inside given");
+}
+{
+ my $flag = 0;
+ given ($flag) {
+ when (0) { $flag = 1; goto GIVEN3; $flag = 2; }
+ $flag = 3;
+ }
+GIVEN3:
+ is($flag, 1, "goto inside given and when");
+}
+{
+ my $flag = 0;
+ for ($flag) {
+ when (0) { $flag = 1; goto GIVEN4; $flag = 2; }
+ $flag = 3;
+ }
+GIVEN4:
+ is($flag, 1, "goto inside for and when");
+}
+{
+ my $flag = 0;
+GIVEN5:
+ given ($flag) {
+ when (0) { $flag = 1; goto GIVEN5; $flag = 2; }
+ when (1) { break; }
+ $flag = 3;
+ }
+ is($flag, 1, "goto inside given and when to the given stmt");
+}
+
# Okay, that'll do for now. The intricacies of the smartmatch
# semantics are tested in t/op/smartmatch.t
__END__
projects / p5sagit/p5-mst-13.2.git / blobdiff