X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=t%2Fop%2Fchop.t;h=bacc439676a26b594a1ce52c0fe9bf7e9a086e60;hb=e24631be6ac297b562086a055de17c5bd4247797;hp=abb8aba7325c6ea39ef980b72db5d19899019744;hpb=991e6d419e6cb68835dda77416b60c341a13a26e;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/t/op/chop.t b/t/op/chop.t
index abb8aba..bacc439 100755
--- a/t/op/chop.t
+++ b/t/op/chop.t
@@ -6,7 +6,7 @@ BEGIN {
     require './test.pl';
 }
 
-plan tests => 47;
+plan tests => 133;
 
 $_ = 'abc';
 $c = do foo();
@@ -172,3 +172,53 @@ foreach (keys %chop) {
     is ($_, $chop{$key}, "chop hash key");
   }
 }
+
+# chop and chomp can't be lvalues
+eval 'chop($x) = 1;';
+ok($@ =~ /Can\'t modify.*chop.*in.*assignment/);
+eval 'chomp($x) = 1;';
+ok($@ =~ /Can\'t modify.*chom?p.*in.*assignment/);
+eval 'chop($x, $y) = (1, 2);';
+ok($@ =~ /Can\'t modify.*chop.*in.*assignment/);
+eval 'chomp($x, $y) = (1, 2);';
+ok($@ =~ /Can\'t modify.*chom?p.*in.*assignment/);
+
+my @chars = ("N", "\xd3", substr ("\xd4\x{100}", 0, 1), chr 1296);
+foreach my $start (@chars) {
+  foreach my $end (@chars) {
+    local $/ = $end;
+    my $message = "start=" . ord ($start) . " end=" . ord $end;
+    my $string = $start . $end;
+    is (chomp ($string), 1, "$message [returns 1]");
+    is ($string, $start, $message);
+
+    my $end_utf8 = $end;
+    utf8::encode ($end_utf8);
+    next if $end_utf8 eq $end;
+
+    # $end ne $end_utf8, so these should not chomp.
+    $string = $start . $end_utf8;
+    my $chomped = $string;
+    is (chomp ($chomped), 0, "$message (end as bytes) [returns 0]");
+    is ($chomped, $string, "$message (end as bytes)");
+
+    $/ = $end_utf8;
+    $string = $start . $end;
+    $chomped = $string;
+    is (chomp ($chomped), 0, "$message (\$/ as bytes) [returns 0]");
+    is ($chomped, $string, "$message (\$/ as bytes)");
+  }
+}
+
+{
+    # returns length in characters, but not in bytes.
+    $/ = "\x{100}";
+    $a = "A$/";
+    $b = chomp $a;
+    is ($b, 1);
+
+    $/ = "\x{100}\x{101}";
+    $a = "A$/";
+    $b = chomp $a;
+    is ($b, 2);
+}