more pack/unpack documentation (from Ilya Zakharevich); changed

[perl5.git] / t / op / pack.t

diff --git a/t/op/pack.t b/t/op/pack.t
index 092e810..9b96289 100755 (executable)
--- a/t/op/pack.t
+++ b/t/op/pack.t
@@ -6,7 +6,7 @@ BEGIN {
     require Config; import Config;
 }
 
-print "1..152\n";
+print "1..153\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
@@ -208,7 +208,7 @@ EOUU
 print "not " unless unpack('u', $uu) eq $in;
 print "ok ", $test++, "\n";
 
-# 61..72: test the ascii template types (A, a, Z)
+# 61..73: test the ascii template types (A, a, Z)
 
 print "not " unless pack('A*', "foo\0bar\0 ") eq "foo\0bar\0 ";
 print "ok ", $test++, "\n";
@@ -234,19 +234,22 @@ 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 "not " unless pack('Z*', "foo\0bar\0 ") eq "foo\0bar\0 \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 pack('Z3', "foo") eq "fo\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
+# 74..79: packing native shorts/ints/longs
 
 print "not " unless length(pack("s!", 0)) == $Config{shortsize};
 print "ok ", $test++, "\n";
@@ -266,81 +269,81 @@ print "ok ", $test++, "\n";
 print "not " unless length(pack("i!", 0)) == length(pack("i", 0));
 print "ok ", $test++, "\n";
 
-# 79..138: pack <-> unpack bijectionism
+# 80..139: pack <-> unpack bijectionism
 
-#  79.. 83 c
+#  80.. 84 c
 foreach my $c (-128, -1, 0, 1, 127) {
     print "not " unless unpack("c", pack("c", $c)) == $c;
     print "ok ", $test++, "\n";
 }
 
-#  84.. 88: C
+#  85.. 89: C
 foreach my $C (0, 1, 127, 128, 255) {
     print "not " unless unpack("C", pack("C", $C)) == $C;
     print "ok ", $test++, "\n";
 }
 
-#  89.. 93: s
+#  90.. 94: s
 foreach my $s (-32768, -1, 0, 1, 32767) {
     print "not " unless unpack("s", pack("s", $s)) == $s;
     print "ok ", $test++, "\n";
 }
 
-#  94.. 98: S
+#  95.. 99: S
 foreach my $S (0, 1, 32767, 32768, 65535) {
     print "not " unless unpack("S", pack("S", $S)) == $S;
     print "ok ", $test++, "\n";
 }
 
-#  99..103: i
+#  100..104: i
 foreach my $i (-2147483648, -1, 0, 1, 2147483647) {
     print "not " unless unpack("i", pack("i", $i)) == $i;
     print "ok ", $test++, "\n";
 }
 
-# 104..108: I
+# 105..109: I
 foreach my $I (0, 1, 2147483647, 2147483648, 4294967295) {
     print "not " unless unpack("I", pack("I", $I)) == $I;
     print "ok ", $test++, "\n";
 }
 
-# 109..113: l
+# 110..114: l
 foreach my $l (-2147483648, -1, 0, 1, 2147483647) {
     print "not " unless unpack("l", pack("l", $l)) == $l;
     print "ok ", $test++, "\n";
 }
 
-# 114..118: L
+# 115..119: L
 foreach my $L (0, 1, 2147483647, 2147483648, 4294967295) {
     print "not " unless unpack("L", pack("L", $L)) == $L;
     print "ok ", $test++, "\n";
 }
 
-# 119..123: n
+# 120..124: n
 foreach my $n (0, 1, 32767, 32768, 65535) {
     print "not " unless unpack("n", pack("n", $n)) == $n;
     print "ok ", $test++, "\n";
 }
 
-# 124..128: v
+# 125..129: v
 foreach my $v (0, 1, 32767, 32768, 65535) {
     print "not " unless unpack("v", pack("v", $v)) == $v;
     print "ok ", $test++, "\n";
 }
 
-# 129..133: N
+# 130..134: N
 foreach my $N (0, 1, 2147483647, 2147483648, 4294967295) {
     print "not " unless unpack("N", pack("N", $N)) == $N;
     print "ok ", $test++, "\n";
 }
 
-# 134..138: V
+# 135..139: V
 foreach my $V (0, 1, 2147483647, 2147483648, 4294967295) {
     print "not " unless unpack("V", pack("V", $V)) == $V;
     print "ok ", $test++, "\n";
 }
 
-# 139..142: pack nvNV byteorders
+# 140..143: pack nvNV byteorders
 
 print "not " unless pack("n", 0xdead) eq "\xde\xad";
 print "ok ", $test++, "\n";
@@ -354,7 +357,7 @@ print "ok ", $test++, "\n";
 print "not " unless pack("V", 0xdeadbeef) eq "\xef\xbe\xad\xde";
 print "ok ", $test++, "\n";
 
-# 143..148: /
+# 144..149: /
 
 my $z;
 eval { ($x) = unpack '/a*','hello' };
@@ -369,7 +372,7 @@ print 'not ' unless $@; print "ok $test\n"; $test++;
 $z = pack 'n/a* w/A*','string','etc';
 print 'not ' unless $z eq "\000\006string\003etc"; print "ok $test\n"; $test++;
 
-# 149..152: / with #
+# 150..153: / with #
 
 eval { ($z,$x,$y) = unpack <<EOU, "003ok \003yes\004z\000abc" };
  a3/A                  # Count in ASCII