X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=t%2Fop%2Fsubstr.t;h=dfb483aee58b02f2542f93f2cbd0527267626b55;hb=3511154c18a0900e8873e8e72a4b74931525e718;hp=12bcd00b33963cdeb3e85643cf512c65feeed632;hpb=847a5fae45dac396d0f9e1bb61d5b4ff9d94cdcd;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/t/op/substr.t b/t/op/substr.t
index 12bcd00..dfb483a 100755
--- a/t/op/substr.t
+++ b/t/op/substr.t
@@ -1,6 +1,6 @@
 #!./perl
 
-print "1..162\n";
+print "1..177\n";
 
 #P = start of string  Q = start of substr  R = end of substr  S = end of string
 
@@ -548,3 +548,64 @@ ok 162, length($x) == 5 &&
         substr($x, 2, 1) eq "\x{100}" &&
         substr($x, 3, 1) eq "\x{FF}" &&
         substr($x, 4, 1) eq "\x{F3}";
+
+substr($x = "ab", 0, 0, "\x{100}\x{200}");
+ok 163, $x eq "\x{100}\x{200}ab";
+
+substr($x = "\x{100}\x{200}", 0, 0, "ab");
+ok 164, $x eq "ab\x{100}\x{200}";
+
+substr($x = "ab", 1, 0, "\x{100}\x{200}");
+ok 165, $x eq "a\x{100}\x{200}b";
+
+substr($x = "\x{100}\x{200}", 1, 0, "ab");
+ok 166, $x eq "\x{100}ab\x{200}";
+
+substr($x = "ab", 2, 0, "\x{100}\x{200}");
+ok 167, $x eq "ab\x{100}\x{200}";
+
+substr($x = "\x{100}\x{200}", 2, 0, "ab");
+ok 168, $x eq "\x{100}\x{200}ab";
+
+substr($x = "\xFFb", 0, 0, "\x{100}\x{200}");
+ok 169, $x eq "\x{100}\x{200}\xFFb";
+
+substr($x = "\x{100}\x{200}", 0, 0, "\xFFb");
+ok 170, $x eq "\xFFb\x{100}\x{200}";
+
+substr($x = "\xFFb", 1, 0, "\x{100}\x{200}");
+ok 171, $x eq "\xFF\x{100}\x{200}b";
+
+substr($x = "\x{100}\x{200}", 1, 0, "\xFFb");
+ok 172, $x eq "\x{100}\xFFb\x{200}";
+
+substr($x = "\xFFb", 2, 0, "\x{100}\x{200}");
+ok 173, $x eq "\xFFb\x{100}\x{200}";
+
+substr($x = "\x{100}\x{200}", 2, 0, "\xFFb");
+ok 174, $x eq "\x{100}\x{200}\xFFb";
+
+# [perl #20933]
+{ 
+    my $s = "ab";
+    my @r; 
+    $r[$_] = \ substr $s, $_, 1 for (0, 1);
+    ok 175, join("", map { $$_ } @r) eq "ab";
+}
+
+# [perl #23207]
+{
+    sub ss {
+	substr($_[0],0,1) ^= substr($_[0],1,1) ^=
+	substr($_[0],0,1) ^= substr($_[0],1,1);
+    }
+    my $x = my $y = 'AB'; ss $x; ss $y;
+    ok 176, $x eq $y;
+}
+
+# [perl #24605]
+{
+    my $x = "0123456789\x{500}";
+    my $y = substr $x, 4;
+    ok 177, substr($x, 7, 1) eq "7";
+}