pack/unpack better in (network-)short-non-16-bits and

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

diff --git a/t/op/pack.t b/t/op/pack.t
index 6b4e634..f1bb62f 100755 (executable)
--- a/t/op/pack.t
+++ b/t/op/pack.t
@@ -1,14 +1,12 @@
 #!./perl
 
-# $RCSfile: pack.t,v $$Revision: 4.1 $$Date: 92/08/07 18:28:11 $
-
 BEGIN {
     chdir 't' if -d 't';
-    @INC = '../lib' if -d '../lib';
+    unshift @INC, '../lib' if -d '../lib';
     require Config; import Config;
 }
 
-print "1..60\n";
+print "1..98\n";
 
 $format = "c2 x5 C C x s d i l a6";
 # Need the expression in here to force ary[5] to be numeric.  This avoids
@@ -166,6 +164,11 @@ foreach my $t (@templates) {
 
 # 57..60: uuencode/decode
 
+# Note that first uuencoding known 'text' data and then checking the
+# binary values of the uuencoded version would not be portable between
+# character sets.  Uuencoding is meant for encoding binary data, not
+# text data.
+ 
 $in = pack 'C*', 0 .. 255;
 
 # just to be anal, we do some random tr/`/ /
@@ -205,7 +208,151 @@ EOUU
 print "not " unless unpack('u', $uu) eq $in;
 print "ok ", $test++, "\n";
 
-# Note that first uuencoding known 'text' data and then checking the
-# binary values of the uuencoded version would not be portable between
-# character sets.  Uuencoding is meant for encoding binary data, not
-# text data.
+# 61..72: test the ascii template types (A, a, Z)
+
+print "not " unless pack('A*', "foo\0bar\0 ") eq "foo\0bar\0 ";
+print "ok ", $test++, "\n";
+
+print "not " unless pack('A11', "foo\0bar\0 ") eq "foo\0bar\0   ";
+print "ok ", $test++, "\n";
+
+print "not " unless unpack('A*', "foo\0bar \0") eq "foo\0bar";
+print "ok ", $test++, "\n";
+
+print "not " unless unpack('A8', "foo\0bar \0") eq "foo\0bar";
+print "ok ", $test++, "\n";
+
+print "not " unless pack('a*', "foo\0bar\0 ") eq "foo\0bar\0 ";
+print "ok ", $test++, "\n";
+
+print "not " unless pack('a11', "foo\0bar\0 ") eq "foo\0bar\0 \0\0";
+print "ok ", $test++, "\n";
+
+print "not " unless unpack('a*', "foo\0bar \0") eq "foo\0bar \0";
+print "ok ", $test++, "\n";
+
+print "not " unless unpack('a8', "foo\0bar \0") eq "foo\0bar ";
+print "ok ", $test++, "\n";
+
+print "not " unless pack('Z*', "foo\0bar\0 ") eq "foo\0bar\0 ";
+print "ok ", $test++, "\n";
+
+print "not " unless pack('Z11', "foo\0bar\0 ") eq "foo\0bar\0 \0\0";
+print "ok ", $test++, "\n";
+
+print "not " unless unpack('Z*', "foo\0bar \0") eq "foo";
+print "ok ", $test++, "\n";
+
+print "not " unless unpack('Z8', "foo\0bar \0") eq "foo";
+print "ok ", $test++, "\n";
+
+# 73..78: packing native shorts/ints/longs
+
+print "not " unless length(pack("s_", 0)) == $Config{shortsize};
+print "ok ", $test++, "\n";
+
+print "not " unless length(pack("i_", 0)) == $Config{intsize};
+print "ok ", $test++, "\n";
+
+print "not " unless length(pack("l_", 0)) == $Config{longsize};
+print "ok ", $test++, "\n";
+
+print "not " unless length(pack("s_", 0)) <= length(pack("i_", 0));
+print "ok ", $test++, "\n";
+
+print "not " unless length(pack("i_", 0)) <= length(pack("l_", 0));
+print "ok ", $test++, "\n";
+
+print "not " unless length(pack("i_", 0)) == length(pack("i", 0));
+print "ok ", $test++, "\n";
+
+# 79..94: test the limits
+
+# Some possibilities for $Config{byteorder} and $Config{.*size}.
+# Note that CPUs can feature at several places.
+#
+# Config
+#
+# byteorder
+#
+# 1234         x86, vax, (DEC) mips
+# 12345678     alpha
+# 4321         sparc, ppc, hppa, (IRIX) mips, motorola
+# 87654321     sparc, mips, hppa, cray
+#
+#              x86     alpha   sparc   cray
+# shortsize    2       2       2       8
+# intsize      4       4       4       8
+# longsize     4       8       8       8
+#
+
+print "not " unless unpack("c", pack("c",  127)) ==  127;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("c", pack("c", -128)) == -128;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("C", pack("C",  255)) ==  255;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("s", pack("s",  32767)) ==  32767;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("s", pack("s", -32768)) == -32768;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("S", pack("S",  65535)) ==  65535;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("i", pack("i",  2147483647)) ==  2147483647;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("i", pack("i", -2147483648)) == -2147483648;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("I", pack("I",  4294967295)) ==  4294967295;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("l", pack("l",  2147483647)) ==  2147483647;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("l", pack("l", -2147483648)) == -2147483648;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("L", pack("L",  4294967295)) ==  4294967295;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("n", pack("n",  65535)) == 65535;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("v", pack("v",  65535)) == 65535;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("N", pack("N",  4294967295)) ==  4294967295;
+print "ok ", $test++, "\n";
+
+print "not " unless unpack("V", pack("V",  4294967295)) ==  4294967295;
+print "ok ", $test++, "\n";
+
+# 95..98 test the n/v/N/V byteorder
+
+if ($Config{byteorder} =~ /^1234(5678)?$/ ||
+    $Config{byteorder} =~ /^(8765)?4321$/) {
+
+    print "not " unless pack("n", 0xdead) eq "\xde\xad";
+    print "ok ", $test++, "\n";
+
+    print "not " unless pack("v", 0xdead) eq "\xad\xde";
+    print "ok ", $test++, "\n";
+
+    print "not " unless pack("N", 0xdeadbeef) eq "\xde\xad\xbe\xef";
+    print "ok ", $test++, "\n";
+
+    print "not " unless pack("V", 0xdeadbeef) eq "\xef\xbe\xad\xde";
+    print "ok ", $test++, "\n";
+} else {
+   # exotic byteorder systems require more thought 
+   foreach (95..98) {
+       print "ok ", $test++, " # skipped\n";
+   }
+}