Add, document, and test bytes::substr, index, rindex, chr,

document bytes::ord.

p4raw-id: //depot/perl@21016

1 files changed, 15 insertions, 1 deletions

diff --git a/lib/bytes.t b/lib/bytes.t
index 28043caa1d..6b66a554b2 100644
--- a/lib/bytes.t
+++ b/lib/bytes.t
@@ -4,20 +4,26 @@ BEGIN {
     require './test.pl';
 }
 
-plan tests => 9;
+plan tests => 19;
 
 my $a = chr(0x100);
 
 is(ord($a), 0x100, "ord sanity check");
 is(length($a), 1,  "length sanity check");
+is(substr($a, 0, 1), "\x{100}",  "substr sanity check");
+is(index($a, "\x{100}"),  0, "index sanity check");
+is(rindex($a, "\x{100}"), 0, "rindex sanity check");
 is(bytes::length($a), 2,  "bytes::length sanity check");
+is(bytes::chr(0x100), chr(0),  "bytes::chr sanity check");
 
 {
     use bytes;
     my $b = chr(0x100); # affected by 'use bytes'
     is(ord($b), 0, "chr truncates under use bytes");
     is(length($b), 1, "length truncated under use bytes");
+    is(bytes::ord($b), 0, "bytes::ord truncated under use bytes");
     is(bytes::length($b), 1, "bytes::length truncated under use bytes");
+    is(bytes::substr($b, 0, 1), "\0", "bytes::substr truncated under use bytes");
 }
 
 my $c = chr(0x100);
@@ -31,4 +37,12 @@ my $c = chr(0x100);
     }
     is(length($c), 2, "length under use bytes looks at bytes");
     is(bytes::length($c), 2, "bytes::length under use bytes looks at bytes");
+    if (ord('A') == 193) { # EBCDIC?
+	is(bytes::ord($c), 0x8c, "bytes::ord under use bytes looks at the 1st byte");
+    } else {
+	is(bytes::ord($c), 0xc4, "bytes::ord under use bytes looks at the 1st byte");
+    }
+    is(bytes::substr($c, 0, 1), "\xc4", "bytes::substr under use bytes looks at bytes");
+    is(bytes::index($c, "\x80"), 1, "bytes::index under use bytes looks at bytes");
+    is(bytes::rindex($c, "\xc4"), 0, "bytes::rindex under use bytes looks at bytes");
 }