SYN SYN

[p5sagit/p5-mst-13.2.git] / t / op / substr.t

diff --git a/t/op/substr.t b/t/op/substr.t
index 5764e67..4d3bbce 100755 (executable)
--- a/t/op/substr.t
+++ b/t/op/substr.t
@@ -1,10 +1,12 @@
+#!./perl
 
-print "1..125\n";
+print "1..136\n";
 
 #P = start of string  Q = start of substr  R = end of substr  S = end of string
 
 BEGIN {
-    unshift @INC, '../lib' if -d '../lib' ;
+    chdir 't' if -d 't';
+    @INC = '../lib';
 }
 use warnings ;
 
@@ -268,3 +270,37 @@ ok 123, $@ && $@ =~ /Can't modify substr/ && $a eq "foo";
 $a = "abcdefgh";
 ok 124, sub { shift }->(substr($a, 0, 4, "xxxx")) eq 'abcd';
 ok 125, $a eq 'xxxxefgh';
+
+{
+    my $y = 10;
+    $y = "2" . $y;
+    ok 126, $y+0 == 210;
+}
+
+# utf8 sanity
+{
+    my $x = substr("a\x{263a}b",0);
+    ok 127, length($x) == 3;
+    $x = substr($x,1,1);
+    ok 128, $x eq "\x{263a}";
+    $x = $x x 2;
+    ok 129, length($x) == 2;
+    substr($x,0,1) = "abcd";
+    ok 130, $x eq "abcd\x{263a}";
+    ok 131, length($x) == 5;
+    $x = reverse $x;
+    ok 132, length($x) == 5;
+    ok 133, $x eq "\x{263a}dcba";
+
+    my $z = 10;
+    $z = "21\x{263a}" . $z;
+    ok 134, length($z) == 5;
+    ok 135, $z eq "21\x{263a}10";
+}
+
+# replacement should work on magical values
+require Tie::Scalar;
+my %data;
+tie $data{'a'}, 'Tie::StdScalar';  # makes $data{'a'} magical
+$data{a} = "firstlast";
+ok 136, substr($data{'a'}, 0, 5, "") eq "first" && $data{'a'} eq "last";