Remember to capture t/op/any_all.t

t/op/any_all.t

@@ -0,0 +1,82 @@
+#!./perl
+
+BEGIN {
+    chdir 't' if -d 't';
+    require './test.pl';
+    set_up_inc('../lib');
+}
+
+use feature 'any_all';
+no warnings 'experimental::any_all';
+
+# Basic true/false testing
+ok(  (any { $_ > 10 } 1 .. 20), 'list contains a value above ten' );
+ok( !(any { $_ > 10 } 1 .. 9), 'list does not contain a value above ten' );
+ok( !(all { $_ < 10 } 1 .. 20), 'not all list values below ten' );
+ok(  (all { $_ < 10 } 1 .. 9), 'all list values below ten' );
+
+# any empty list is false
+{
+   my $invoked;
+   my $ret = any { $invoked++ } ();
+   ok( defined $ret, 'any on empty list is defined' );
+   ok( !$ret, 'any on empty list is false' );
+   ok( !$invoked, 'any on empty list did not invoke block' );
+}
+
+# all empty list is true
+{
+   my $invoked;
+   ok( (all { $invoked } ()), 'all on empty list is true' );
+   ok( !$invoked, 'all on empty list did not invoke block' );
+}
+
+# any failure yields false in list context
+{
+   my @ret;
+   @ret = any { $_ > 10 } 1 .. 9;
+   ok( @ret == 1, 'any nothing yielded a value in list context' );
+   ok( !$ret[0], 'any nothing yielded false in list context' );
+
+   @ret = any { $_ > 10 } ();
+   ok( @ret == 1, 'any nothing yielded a value in list context on empty input' );
+   ok( !$ret[0], 'any nothing yielded false in list context on empty input' );
+}
+
+# all failure yields true in list context
+{
+   my @ret;
+   @ret = all { $_ > 10 } 1 .. 9;
+   ok( @ret == 1, 'all nothing yielded a value in list context' );
+   ok( !$ret[0], 'all nothing yielded false in list context' );
+
+   @ret = all { $_ > 10 } ();
+   ok( @ret == 1, 'all nothing yielded a value in list context on empty input' );
+   ok( $ret[0], 'all nothing yielded true in list context on empty input' );
+}
+
+# short-circuiting
+{
+   my @seen;
+   any { push @seen, $_; $_ > 10 } 10, 20, 30, 40;
+   ok( eq_array( \@seen, [ 10, 20 ] ), 'any short-circuits after first true result' );
+
+   undef @seen;
+   all { push @seen, $_; $_ < 20 } 10, 20, 30, 40;
+   ok( eq_array( \@seen, [ 10, 20 ] ), 'all short-circuits after first false result' );
+}
+
+# stack discipline
+{
+   ok( eq_array(
+        [ 1, 2, (any { $_ eq "x" } "x", "y"), 3, 4 ],
+        [ 1, 2, 1, 3, 4 ] ),
+    'any() preserves stack discipline' );
+
+   ok( eq_array(
+        [ 1, 2, (all { $_ eq "x" } "x", "x"), 3, 4 ],
+        [ 1, 2, 1, 3, 4 ] ),
+    'all() preserves stack discipline' );
+}
+
+done_testing;