X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=t%2Fop%2Fpack.t;h=6ee51e0d3358aaafa9b2ef7872e3b44602af2712;hb=9e17a6b85d8f3a1c82a2e59da7f9b7ccbbb4c3d4;hp=8d327466fc15e4909aafe6242887b50838b4d1f5;hpb=35bcd33832d74e56bb99eb6538654e7d815f1ecb;p=p5sagit%2Fp5-mst-13.2.git diff --git a/t/op/pack.t b/t/op/pack.t index 8d32746..6ee51e0 100755 --- a/t/op/pack.t +++ b/t/op/pack.t @@ -1,204 +1,216 @@ -#!./perl -Tw +#!./perl -w BEGIN { chdir 't' if -d 't'; @INC = '../lib'; + require './test.pl'; } -use Config; - -$Is_EBCDIC = (defined $Config{ebcdic} && $Config{ebcdic} eq 'define'); +plan tests => 1470; -my $test = 1; -sub ok { - my($ok) = @_; - - # You have to do it this way or VMS will get confused. - my $out = ''; - $out = "not " unless $ok; - $out .= "ok $test\n"; - print $out; +use strict; +use warnings; +use Config; - printf "# Failed test at line %d\n", (caller)[2] unless $ok; +my $Is_EBCDIC = (defined $Config{ebcdic} && $Config{ebcdic} eq 'define'); +my $Perl = which_perl(); - $test++; - return $ok; +sub encode_list { + my @result = map {_qq($_)} @_; + if (@result == 1) { + return @result; + } + return '(' . join (', ', @result) . ')'; } -print "1..169\n"; - -# Note: All test numbers in comments are off by 1 after the comment below.. - -$format = "c2 x5 C C x s d i l a6"; -# Need the expression in here to force ary[5] to be numeric. This avoids -# test2 failing because ary2 goes str->numeric->str and ary doesn't. -@ary = (1,-100,127,128,32767,987.654321098 / 100.0,12345,123456,"abcdef"); -$foo = pack($format,@ary); -@ary2 = unpack($format,$foo); - -ok($#ary == $#ary2); - -$out1=join(':',@ary); -$out2=join(':',@ary2); -# Using long double NVs may introduce greater accuracy than wanted. -$out1 =~ s/:9\.87654321097999\d*:/:9.87654321098:/; -$out2 =~ s/:9\.87654321097999\d*:/:9.87654321098:/; -ok($out1 eq $out2); +sub list_eq ($$) { + my ($l, $r) = @_; + return unless @$l == @$r; + for my $i (0..$#$l) { + if (defined $l->[$i]) { + return unless defined ($r->[$i]) && $l->[$i] eq $r->[$i]; + } else { + return if defined $r->[$i] + } + } + return 1; +} -ok($foo =~ /def/); +############################################################################## +# +# Here starteth the tests +# +{ + my $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 + # test2 failing because ary2 goes str->numeric->str and ary doesn't. + my @ary = (1,-100,127,128,32767,987.654321098 / 100.0,12345,123456, + "abcdef"); + my $foo = pack($format,@ary); + my @ary2 = unpack($format,$foo); + + is($#ary, $#ary2); + + my $out1=join(':',@ary); + my $out2=join(':',@ary2); + # Using long double NVs may introduce greater accuracy than wanted. + $out1 =~ s/:9\.87654321097999\d*:/:9.87654321098:/; + $out2 =~ s/:9\.87654321097999\d*:/:9.87654321098:/; + is($out1, $out2); + + like($foo, qr/def/); +} # How about counting bits? -ok( ($x = unpack("%32B*", "\001\002\004\010\020\040\100\200\377")) == 16 ); - -ok( ($x = unpack("%32b69", "\001\002\004\010\020\040\100\200\017")) == 12 ); - -ok( ($x = unpack("%32B69", "\001\002\004\010\020\040\100\200\017")) == 9 ); - -my $sum = 129; # ASCII -$sum = 103 if $Is_EBCDIC; +{ + my $x; + is( ($x = unpack("%32B*", "\001\002\004\010\020\040\100\200\377")), 16 ); -ok( ($x = unpack("%32B*", "Now is the time for all good blurfl")) == $sum ); + is( ($x = unpack("%32b69", "\001\002\004\010\020\040\100\200\017")), 12 ); -open(BIN, "./perl") || open(BIN, "./perl.exe") || open(BIN, $^X) - || die "Can't open ../perl or ../perl.exe: $!\n"; -sysread BIN, $foo, 8192; -close BIN; + is( ($x = unpack("%32B69", "\001\002\004\010\020\040\100\200\017")), 9 ); +} -$sum = unpack("%32b*", $foo); -$longway = unpack("b*", $foo); -ok( $sum == $longway =~ tr/1/1/ ); +{ + my $sum = 129; # ASCII + $sum = 103 if $Is_EBCDIC; -ok( ($x = unpack("I",pack("I", 0xFFFFFFFF))) == 0xFFFFFFFF ); + my $x; + is( ($x = unpack("%32B*", "Now is the time for all good blurfl")), $sum ); -# check 'w' -my @x = (5,130,256,560,32000,3097152,268435455,1073741844, 2**33, - '4503599627365785','23728385234614992549757750638446'); -my $x = pack('w*', @x); -my $y = pack 'H*', '0581028200843081fa0081bd8440ffffff7f8480808014A08080800087ffffffffffdb19caefe8e1eeeea0c2e1e3e8ede1ee6e'; + my $foo; + open(BIN, $Perl) || die "Can't open $Perl: $!\n"; + sysread BIN, $foo, 8192; + close BIN; -if ($x eq $y) { - print "ok $test\n"; -} else { - printf "not ok $test # %s\n", unpack 'H*', $x; + $sum = unpack("%32b*", $foo); + my $longway = unpack("b*", $foo); + is( $sum, $longway =~ tr/1/1/ ); } -$test++; -@y = unpack('w*', $y); -my $a; -while ($a = pop @x) { - my $b = pop @y; - print $a eq $b ? "ok $test\n" : "not ok $test\n$a\n$b\n"; $test++; +{ + my $x; + is( ($x = unpack("I",pack("I", 0xFFFFFFFF))), 0xFFFFFFFF ); } -# XXX All test numbers in comments are off by 1 after this point. +{ + # check 'w' + my @x = (5,130,256,560,32000,3097152,268435455,1073741844, 2**33, + '4503599627365785','23728385234614992549757750638446'); + my $x = pack('w*', @x); + my $y = pack 'H*', '0581028200843081fa0081bd8440ffffff7f8480808014A0808'. + '0800087ffffffffffdb19caefe8e1eeeea0c2e1e3e8ede1ee6e'; + + is($x, $y); + + my @y = unpack('w*', $y); + my $a; + while ($a = pop @x) { + my $b = pop @y; + is($a, $b); + } -@y = unpack('w2', $x); + @y = unpack('w2', $x); -print scalar(@y) == 2 ? "ok $test\n" : "not ok $test\n"; $test++; -print $y[1] == 130 ? "ok $test\n" : "not ok $test # $y[1]\n"; $test++; + is(scalar(@y), 2); + is($y[1], 130); +} -# test exeptions -eval { $x = unpack 'w', pack 'C*', 0xff, 0xff}; -print $@ ne '' ? "ok $test\n" : "not ok $test\n"; $test++; -eval { $x = unpack 'w', pack 'C*', 0xff, 0xff, 0xff, 0xff}; -print $@ ne '' ? "ok $test\n" : "not ok $test\n"; $test++; +{ + # test exeptions + my $x; + eval { $x = unpack 'w', pack 'C*', 0xff, 0xff}; + like($@, qr/^Unterminated compressed integer/); + + eval { $x = unpack 'w', pack 'C*', 0xff, 0xff, 0xff, 0xff}; + like($@, qr/^Unterminated compressed integer/); -eval { $x = unpack 'w', pack 'C*', 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; -print $@ ne '' ? "ok $test\n" : "not ok $test\n"; $test++; + eval { $x = unpack 'w', pack 'C*', 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; + like($@, qr/^Unterminated compressed integer/); +} # # test the "p" template # literals -print((unpack("p",pack("p","foo")) eq "foo" ? "ok " : "not ok "),$test++,"\n"); +is(unpack("p",pack("p","foo")), "foo"); # scalars -print((unpack("p",pack("p",$test)) == $test ? "ok " : "not ok "),$test++,"\n"); +is(unpack("p",pack("p",239)), 239); # temps sub foo { my $a = "a"; return $a . $a++ . $a++ } { use warnings; - my $last = $test; + my $warning; local $SIG{__WARN__} = sub { - print "ok ",$test++,"\n" if $_[0] =~ /temporary val/ + $warning = $_[0]; }; my $junk = pack("p", &foo); - print "not ok ", $test++, "\n" if $last == $test; + + like($warning, qr/temporary val/); } # undef should give null pointer -print((pack("p", undef) =~ /^\0+/ ? "ok " : "not ok "),$test++,"\n"); +like(pack("p", undef), qr/^\0+/); # Check for optimizer bug (e.g. Digital Unix GEM cc with -O4 on DU V4.0B gives # 4294967295 instead of -1) # see #ifdef __osf__ in pp.c pp_unpack -# Test 30: -print( ((unpack("i",pack("i",-1))) == -1 ? "ok " : "not ok "),$test++,"\n"); - -# 31..36: test the pack lengths of s S i I l L -print "not " unless length(pack("s", 0)) == 2; -print "ok ", $test++, "\n"; - -print "not " unless length(pack("S", 0)) == 2; -print "ok ", $test++, "\n"; - -print "not " unless length(pack("i", 0)) >= 4; -print "ok ", $test++, "\n"; - -print "not " unless length(pack("I", 0)) >= 4; -print "ok ", $test++, "\n"; - -print "not " unless length(pack("l", 0)) == 4; -print "ok ", $test++, "\n"; - -print "not " unless length(pack("L", 0)) == 4; -print "ok ", $test++, "\n"; - -# 37..40: test the pack lengths of n N v V - -print "not " unless length(pack("n", 0)) == 2; -print "ok ", $test++, "\n"; +is((unpack("i",pack("i",-1))), -1); + +# test the pack lengths of s S i I l L +# test the pack lengths of n N v V +my @lengths = qw(s 2 S 2 i -4 I -4 l 4 L 4 n 2 N 4 v 2 V 4); +while (my ($format, $expect) = splice @lengths, 0, 2) { + my $len = length(pack($format, 0)); + if ($expect > 0) { + is($expect, $len, "format '$format'"); + } else { + $expect = -$expect; + ok ($len >= $expect, "format '$format'") || + print "# format '$format' has length $len, expected >= $expect\n"; + } +} -print "not " unless length(pack("N", 0)) == 4; -print "ok ", $test++, "\n"; -print "not " unless length(pack("v", 0)) == 2; -print "ok ", $test++, "\n"; +# test unpack-pack lengths +my @templates = qw(c C i I s S l L n N v V f d q Q); -print "not " unless length(pack("V", 0)) == 4; -print "ok ", $test++, "\n"; +foreach my $t (@templates) { + SKIP: { + my @t = eval { unpack("$t*", pack("$t*", 12, 34)) }; -# 41..56: test unpack-pack lengths + # quads not supported everywhere + skip "Quads not supported", 4 if $@ =~ /Invalid type in pack/; + is( $@, '' ); -my @templates = qw(c C i I s S l L n N v V f d); + is(scalar @t, 2); -# quads not supported everywhere: if not, retest floats/doubles -# to preserve the test count... -eval { my $q = pack("q",0) }; -push @templates, $@ !~ /Invalid type in pack/ ? qw(q Q) : qw(f d); + SKIP: { + skip "$t not expected to work for some reason", 2 if $t =~ /[nv]/i; -foreach my $t (@templates) { - my @t = unpack("$t*", pack("$t*", 12, 34)); - print "not " - unless @t == 2 and (($t[0] == 12 and $t[1] == 34) or ($t =~ /[nv]/i)); - print "ok ", $test++, "\n"; + is($t[0], 12); + is($t[1], 34); + } + } } -# 57..60: uuencode/decode +{ + # uuencode/decode -# Note that first uuencoding known 'text' data and then checking the -# binary values of the uuencoded version would not be portable between -# character sets. Uuencoding is meant for encoding binary data, not -# text data. + # Note that first uuencoding known 'text' data and then checking the + # binary values of the uuencoded version would not be portable between + # character sets. Uuencoding is meant for encoding binary data, not + # text data. -$in = pack 'C*', 0 .. 255; + my $in = pack 'C*', 0 .. 255; -# just to be anal, we do some random tr/`/ / -$uu = <<'EOUU'; + # just to be anal, we do some random tr/`/ / + my $uu = <<'EOUU'; M` $"`P0%!@<("0H+# T.#Q`1$A,4%187&!D:&QP='A\@(2(C)"4F)R@I*BLL M+2XO,#$R,S0U-C'EZ>WQ]?G^`@8*#A(6& @@ -207,296 +219,460 @@ MM+6VM[BYNKN\O;Z_P,'"P\3%QL?(R+CY.7FY^CIZNOL[>[O\/'R\_3U]O?X^?K[_/W^_P ` EOUU -$_ = $uu; -tr/ /`/; -print "not " unless pack('u', $in) eq $_; -print "ok ", $test++, "\n"; + $_ = $uu; + tr/ /`/; + + is(pack('u', $in), $_); -print "not " unless unpack('u', $uu) eq $in; -print "ok ", $test++, "\n"; + is(unpack('u', $uu), $in); -$in = "\x1f\x8b\x08\x08\x58\xdc\xc4\x35\x02\x03\x4a\x41\x50\x55\x00\xf3\x2a\x2d\x2e\x51\x48\xcc\xcb\x2f\xc9\x48\x2d\x52\x08\x48\x2d\xca\x51\x28\x2d\x4d\xce\x4f\x49\x2d\xe2\x02\x00\x64\x66\x60\x5c\x1a\x00\x00\x00"; -$uu = <<'EOUU'; + $in = "\x1f\x8b\x08\x08\x58\xdc\xc4\x35\x02\x03\x4a\x41\x50\x55\x00\xf3\x2a\x2d\x2e\x51\x48\xcc\xcb\x2f\xc9\x48\x2d\x52\x08\x48\x2d\xca\x51\x28\x2d\x4d\xce\x4f\x49\x2d\xe2\x02\x00\x64\x66\x60\x5c\x1a\x00\x00\x00"; + $uu = <<'EOUU'; M'XL("%C("`&1F &8%P:```` EOUU -print "not " unless unpack('u', $uu) eq $in; -print "ok ", $test++, "\n"; + is(unpack('u', $uu), $in); -# 60 identical to 59 except that backquotes have been changed to spaces +# This is identical to the above except that backquotes have been +# changed to spaces -$uu = <<'EOUU'; + $uu = <<'EOUU'; M'XL("%C(" &1F &8%P: EOUU -print "not " unless unpack('u', $uu) eq $in; -print "ok ", $test++, "\n"; + # ' # Grr + is(unpack('u', $uu), $in); -# 61..73: test the ascii template types (A, a, Z) +} + +# test the ascii template types (A, a, Z) + +foreach ( +['p', 'A*', "foo\0bar\0 ", "foo\0bar\0 "], +['p', 'A11', "foo\0bar\0 ", "foo\0bar\0 "], +['u', 'A*', "foo\0bar \0", "foo\0bar"], +['u', 'A8', "foo\0bar \0", "foo\0bar"], +['p', 'a*', "foo\0bar\0 ", "foo\0bar\0 "], +['p', 'a11', "foo\0bar\0 ", "foo\0bar\0 \0\0"], +['u', 'a*', "foo\0bar \0", "foo\0bar \0"], +['u', 'a8', "foo\0bar \0", "foo\0bar "], +['p', 'Z*', "foo\0bar\0 ", "foo\0bar\0 \0"], +['p', 'Z11', "foo\0bar\0 ", "foo\0bar\0 \0\0"], +['p', 'Z3', "foo", "fo\0"], +['u', 'Z*', "foo\0bar \0", "foo"], +['u', 'Z8', "foo\0bar \0", "foo"], +) +{ + my ($what, $template, $in, $out) = @$_; + my $got = $what eq 'u' ? (unpack $template, $in) : (pack $template, $in); + unless (is($got, $out)) { + my $un = $what eq 'u' ? 'un' : ''; + print "# ${un}pack ('$template', "._qq($in).') gave '._qq($out). + ' not '._qq($got)."\n"; + } +} -print "not " unless pack('A*', "foo\0bar\0 ") eq "foo\0bar\0 "; -print "ok ", $test++, "\n"; +# packing native shorts/ints/longs -print "not " unless pack('A11', "foo\0bar\0 ") eq "foo\0bar\0 "; -print "ok ", $test++, "\n"; +is(length(pack("s!", 0)), $Config{shortsize}); +is(length(pack("i!", 0)), $Config{intsize}); +is(length(pack("l!", 0)), $Config{longsize}); +ok(length(pack("s!", 0)) <= length(pack("i!", 0))); +ok(length(pack("i!", 0)) <= length(pack("l!", 0))); +is(length(pack("i!", 0)), length(pack("i", 0))); -print "not " unless unpack('A*', "foo\0bar \0") eq "foo\0bar"; -print "ok ", $test++, "\n"; +sub numbers { + my $format = shift; + return numbers_with_total ($format, undef, @_); +} -print "not " unless unpack('A8', "foo\0bar \0") eq "foo\0bar"; -print "ok ", $test++, "\n"; +sub numbers_with_total { + my $format = shift; + my $total = shift; + if (!defined $total) { + foreach (@_) { + $total += $_; + } + } + foreach (@_) { + SKIP: { + my $out = eval {unpack($format, pack($format, $_))}; + skip "cannot pack '$format' on this perl", 2 if + $@ =~ /Invalid type in pack: '$format'/; + + is($@, ''); + is($out, $_); + } + } -print "not " unless pack('a*', "foo\0bar\0 ") eq "foo\0bar\0 "; -print "ok ", $test++, "\n"; + my $skip_if_longer_than = ~0; # "Infinity" + if (~0 - 1 == ~0) { + # If we're running with -DNO_PERLPRESERVE_IVUV and NVs don't preserve all + # UVs (in which case ~0 is NV, ~0-1 will be the same NV) then we can't + # correctly in perl calculate UV totals for long checksums, as pp_unpack + # is using UV maths, and we've only got NVs. + $skip_if_longer_than = $Config{d_nv_preserves_uv_bits}; + } -print "not " unless pack('a11', "foo\0bar\0 ") eq "foo\0bar\0 \0\0"; -print "ok ", $test++, "\n"; + foreach ('', 1, 2, 3, 15, 16, 17, 31, 32, 33, 53, 54, 63, 64, 65) { + SKIP: { + my $sum = eval {unpack "%$_$format*", pack "$format*", @_}; + skip "cannot pack '$format' on this perl", 3 + if $@ =~ /Invalid type in pack: '$format'/; + + is($@, ''); + ok(defined $sum); + + my $len = $_; # Copy, so that we can reassign '' + $len = 16 unless length $len; + + SKIP: { + skip "cannot test checksums over $skip_if_longer_than bits", 1 + if $len > $skip_if_longer_than; + + # Our problem with testing this portably is that the checksum code in + # pp_unpack is able to cast signed to unsigned, and do modulo 2**n + # arithmetic in unsigned ints, which perl has no operators to do. + # (use integer; does signed ints, which won't wrap on UTS, which is just + # fine with ANSI, but not with most people's assumptions. + # This is why we need to supply the totals for 'Q' as there's no way in + # perl to calculate them, short of unpack '%0Q' (is that documented?) + # ** returns NVs; make sure it's IV. + my $max = 1 + 2 * (int (2 ** ($len-1))-1); # The max possible checksum + my $max_p1 = $max + 1; + my ($max_is_integer, $max_p1_is_integer); + $max_p1_is_integer = 1 unless $max_p1 + 1 == $max_p1; + $max_is_integer = 1 if $max - 1 < ~0; + + my $calc_sum; + if (ref $total) { + $calc_sum = &$total($len); + } else { + $calc_sum = $total; + # Shift into range by some multiple of the total + my $mult = int ($total / $max_p1); + # Need this to make sure that -1 + (~0+1) is ~0 (ie still integer) + $calc_sum = $total - $mult; + $calc_sum -= $mult * $max; + if ($calc_sum < 0) { + $calc_sum += 1; + $calc_sum += $max; + } + } + if ($calc_sum == $calc_sum - 1 && $calc_sum == $max_p1) { + # we're into floating point (either by getting out of the range of + # UV arithmetic, or because we're doing a floating point checksum) + # and our calculation of the checksum has become rounded up to + # max_checksum + 1 + $calc_sum = 0; + } + + if ($calc_sum == $sum) { # HAS to be ==, not eq (so no is()). + ok ("unpack '%$_$format' gave $sum"); + } else { + my $delta = 1.000001; + if ($format =~ tr /dDfF// + && ($calc_sum <= $sum * $delta && $calc_sum >= $sum / $delta)) { + pass ("unpack '%$_$format' gave $sum, expected $calc_sum"); + } else { + my $text = ref $total ? &$total($len) : $total; + fail; + print "# For list (" . join (", ", @_) . ") (total $text)" + . " packed with $format unpack '%$_$format' gave $sum," + . " expected $calc_sum\n"; + } + } + } + } + } +} -print "not " unless unpack('a*', "foo\0bar \0") eq "foo\0bar \0"; -print "ok ", $test++, "\n"; +numbers ('c', -128, -1, 0, 1, 127); +numbers ('C', 0, 1, 127, 128, 255); +numbers ('s', -32768, -1, 0, 1, 32767); +numbers ('S', 0, 1, 32767, 32768, 65535); +numbers ('i', -2147483648, -1, 0, 1, 2147483647); +numbers ('I', 0, 1, 2147483647, 2147483648, 4294967295); +numbers ('l', -2147483648, -1, 0, 1, 2147483647); +numbers ('L', 0, 1, 2147483647, 2147483648, 4294967295); +numbers ('s!', -32768, -1, 0, 1, 32767); +numbers ('S!', 0, 1, 32767, 32768, 65535); +numbers ('i!', -2147483648, -1, 0, 1, 2147483647); +numbers ('I!', 0, 1, 2147483647, 2147483648, 4294967295); +numbers ('l!', -2147483648, -1, 0, 1, 2147483647); +numbers ('L!', 0, 1, 2147483647, 2147483648, 4294967295); +numbers ('n', 0, 1, 32767, 32768, 65535); +numbers ('v', 0, 1, 32767, 32768, 65535); +numbers ('N', 0, 1, 2147483647, 2147483648, 4294967295); +numbers ('V', 0, 1, 2147483647, 2147483648, 4294967295); +# All these should have exact binary representations: +numbers ('f', -1, 0, 0.5, 42, 2**34); +numbers ('d', -(2**34), -1, 0, 1, 2**34); +## These don't, but 'd' is NV. XXX wrong, it's double +#numbers ('d', -1, 0, 1, 1-exp(-1), -exp(1)); + +numbers_with_total ('q', -1, + -9223372036854775808, -1, 0, 1,9223372036854775807); +# This total is icky, but the true total is 2**65-1, and need a way to generate +# the epxected checksum on any system including those where NVs can preserve +# 65 bits. (long double is 128 bits on sparc, so they certainly can) +# or where rounding is down not up on binary conversion (crays) +numbers_with_total ('Q', sub { + my $len = shift; + $len = 65 if $len > 65; # unmasked total is 2**65-1 here + my $total = 1 + 2 * (int (2**($len - 1)) - 1); + return 0 if $total == $total - 1; # Overflowed integers + return $total; # NVs still accurate to nearest integer + }, + 0, 1,9223372036854775807, 9223372036854775808, + 18446744073709551615); + +# pack nvNV byteorders + +is(pack("n", 0xdead), "\xde\xad"); +is(pack("v", 0xdead), "\xad\xde"); +is(pack("N", 0xdeadbeef), "\xde\xad\xbe\xef"); +is(pack("V", 0xdeadbeef), "\xef\xbe\xad\xde"); -print "not " unless unpack('a8', "foo\0bar \0") eq "foo\0bar "; -print "ok ", $test++, "\n"; +{ + # / + + my ($x, $y, $z); + eval { ($x) = unpack '/a*','hello' }; + like($@, qr!/ must follow a numeric type!); + + eval { ($z,$x,$y) = unpack 'a3/A C/a* C/Z', "003ok \003yes\004z\000abc" }; + is($@, ''); + is($z, 'ok'); + is($x, 'yes'); + is($y, 'z'); + + eval { ($x) = pack '/a*','hello' }; + like($@, qr!Invalid type in pack: '/'!); + + $z = pack 'n/a* N/Z* w/A*','string','hi there ','etc'; + my $expect = "\000\006string\0\0\0\012hi there \000\003etc"; + is($z, $expect); + + $expect = 'hello world'; + eval { ($x) = unpack ("w/a", chr (11) . "hello world!")}; + is($x, $expect); + is($@, ''); + + # Doing this in scalar context used to fail. + eval { $x = unpack ("w/a", chr (11) . "hello world!")}; + is($@, ''); + is($x, $expect); + + foreach ( + ['a/a*/a*', '212ab345678901234567','ab3456789012'], + ['a/a*/a*', '3012ab345678901234567', 'ab3456789012'], + ['a/a*/b*', '212ab', $Is_EBCDIC ? '100000010100' : '100001100100'], + ) + { + my ($pat, $in, $expect) = @$_; + eval { ($x) = unpack $pat, $in }; + is($@, ''); + is($x, $expect) || + printf "# list unpack ('$pat', '$in') gave %s, expected '$expect'\n", + encode_list ($x); + + eval { $x = unpack $pat, $in }; + is($@, ''); + is($x, $expect) || + printf "# scalar unpack ('$pat', '$in') gave %s, expected '$expect'\n", + encode_list ($x); + } -print "not " unless pack('Z*', "foo\0bar\0 ") eq "foo\0bar\0 \0"; -print "ok ", $test++, "\n"; + # / with # -print "not " unless pack('Z11', "foo\0bar\0 ") eq "foo\0bar\0 \0\0"; -print "ok ", $test++, "\n"; + eval { ($z,$x,$y) = unpack < unpack bijectionism +SKIP: { + skip "Not for EBCDIC", 4 if $Is_EBCDIC; -# 80.. 84 c -foreach my $c (-128, -1, 0, 1, 127) { - print "not " unless unpack("c", pack("c", $c)) == $c; - print "ok ", $test++, "\n"; -} + # does unpack C unravel pack U? + is("@{[unpack('C*', pack('U*', 100, 200))]}", "100 195 136"); -# 85.. 89: C -foreach my $C (0, 1, 127, 128, 255) { - print "not " unless unpack("C", pack("C", $C)) == $C; - print "ok ", $test++, "\n"; -} + # does pack U0C create Unicode? + is("@{[pack('U0C*', 100, 195, 136)]}", v100.v200); -# 90.. 94: s -foreach my $s (-32768, -1, 0, 1, 32767) { - print "not " unless unpack("s", pack("s", $s)) == $s; - print "ok ", $test++, "\n"; -} + # does pack C0U create characters? + is("@{[pack('C0U*', 100, 200)]}", pack("C*", 100, 195, 136)); -# 95.. 99: S -foreach my $S (0, 1, 32767, 32768, 65535) { - print "not " unless unpack("S", pack("S", $S)) == $S; - print "ok ", $test++, "\n"; + # does unpack U0U on byte data warn? + { + local $SIG{__WARN__} = sub { $@ = "@_" }; + my @null = unpack('U0U', chr(255)); + like($@, /^Malformed UTF-8 character /); + } } -# 100..104: i -foreach my $i (-2147483648, -1, 0, 1, 2147483647) { - print "not " unless unpack("i", pack("i", $i)) == $i; - print "ok ", $test++, "\n"; -} +{ + my $p = pack 'i*', -2147483648, ~0, 0, 1, 2147483647; + my (@a); + # bug - % had to be at the start of the pattern, no leading whitespace or + # comments. %i! didn't work at all. + foreach my $pat ('%32i*', ' %32i*', "# Muhahahaha\n%32i*", '%32i* ', + '%32i!*', ' %32i!*', "\n#\n#\n\r \t\f%32i!*", '%32i!*#') { + @a = unpack $pat, $p; + is($a[0], 0xFFFFFFFF) || print "# $pat\n"; + @a = scalar unpack $pat, $p; + is($a[0], 0xFFFFFFFF) || print "# $pat\n"; + } -# 105..109: I -foreach my $I (0, 1, 2147483647, 2147483648, 4294967295) { - print "not " unless unpack("I", pack("I", $I)) == $I; - print "ok ", $test++, "\n"; -} -# 110..114: l -foreach my $l (-2147483648, -1, 0, 1, 2147483647) { - print "not " unless unpack("l", pack("l", $l)) == $l; - print "ok ", $test++, "\n"; -} + $p = pack 'I*', 42, 12; + # Multiline patterns in scalar context failed. + foreach my $pat ('I', < 32 bits with floating + # point, so a pathologically long pattern would wrap at 32 bits. + my $pat = "\xff\xff"x65538; # Start with it long, to save any copying. + foreach (4,3,2,1,0) { + my $len = 65534 + $_; + is(unpack ("%33n$len", $pat), 65535 * $len); + } } -# 120..124: n -foreach my $n (0, 1, 32767, 32768, 65535) { - print "not " unless unpack("n", pack("n", $n)) == $n; - print "ok ", $test++, "\n"; -} -# 125..129: v -foreach my $v (0, 1, 32767, 32768, 65535) { - print "not " unless unpack("v", pack("v", $v)) == $v; - print "ok ", $test++, "\n"; +# pack x X @ +foreach ( + ['x', "N", "\0"], + ['x4', "N", "\0"x4], + ['xX', "N", ""], + ['xXa*', "Nick", "Nick"], + ['a5Xa5', "cameL", "llama", "camellama"], + ['@4', 'N', "\0"x4], + ['a*@8a*', 'Camel', 'Dromedary', "Camel\0\0\0Dromedary"], + ['a*@4a', 'Perl rules', '!', 'Perl!'], +) +{ + my ($template, @in) = @$_; + my $out = pop @in; + my $got = eval {pack $template, @in}; + is($@, ''); + is($out, $got) || + printf "# pack ('$template', %s) gave %s expected %s\n", + encode_list (@in), encode_list ($got), encode_list ($out); } -# 130..134: N -foreach my $N (0, 1, 2147483647, 2147483648, 4294967295) { - print "not " unless unpack("N", pack("N", $N)) == $N; - print "ok ", $test++, "\n"; +# unpack x X @ +foreach ( + ['x', "N"], + ['xX', "N"], + ['xXa*', "Nick", "Nick"], + ['a5Xa5', "camellama", "camel", "llama"], + ['@3', "ice"], + ['@2a2', "water", "te"], + ['a*@1a3', "steam", "steam", "tea"], +) +{ + my ($template, $in, @out) = @$_; + my @got = eval {unpack $template, $in}; + is($@, ''); + list_eq (\@got, \@out) || + printf "# list unpack ('$template', %s) gave %s expected %s\n", + _qq($in), encode_list (@got), encode_list (@out); + + my $got = eval {unpack $template, $in}; + is($@, ''); + @out ? is( $got, $out[0] ) # 1 or more items; should get first + : ok( !defined $got ) # 0 items; should get undef + or printf "# scalar unpack ('$template', %s) gave %s expected %s\n", + _qq($in), encode_list ($got), encode_list ($out[0]); } -# 135..139: V -foreach my $V (0, 1, 2147483647, 2147483648, 4294967295) { - print "not " unless unpack("V", pack("V", $V)) == $V; - print "ok ", $test++, "\n"; +{ + my $t = 'Z*Z*'; + my ($u, $v) = qw(foo xyzzy); + my $p = pack($t, $u, $v); + my @u = unpack($t, $p); + is(scalar @u, 2); + is($u[0], $u); + is($u[1], $v); } -# 140..143: pack nvNV byteorders - -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 ", $test++, "\n"; - -# 144..152: / +{ + is((unpack("w/a*", "\x02abc"))[0], "ab"); -# Using Test considered bad plan in op/*.t ? + # "w/a*" should be seen as one unit -sub report { - my ($pass, $test, $err, $wrong) = @_; - if ($pass) { - print "ok $test\n" - } else { - if ($err) { - chomp $err; - print "not ok $test # \$\@ = $err\n"; - } else { - $wrong =~ s/([[:cntrl:]\177 ])/sprintf "\\%03o", ord $1/ge; - print "not ok $test # got $wrong\n"; - } - } + is(scalar unpack("w/a*", "\x02abc"), "ab"); } -my $z; -eval { ($x) = unpack '/a*','hello' }; -print 'not ' unless $@; print "ok $test\n"; $test++; -eval { ($z,$x,$y) = unpack 'a3/A C/a* C/Z', "003ok \003yes\004z\000abc" }; -print $@ eq '' && $z eq 'ok' ? "ok $test\n" : "not ok $test\n"; $test++; -print $@ eq '' && $x eq 'yes' ? "ok $test\n" : "not ok $test\n"; $test++; -print $@ eq '' && $y eq 'z' ? "ok $test\n" : "not ok $test\n"; $test++; - -eval { ($x) = pack '/a*','hello' }; -print 'not ' unless $@; print "ok $test\n"; $test++; -$z = pack 'n/a* N/Z* w/A*','string','hi there ','etc'; -my $expect = "\000\006string\0\0\0\012hi there \000\003etc"; -report ($z eq $expect, $test++, '', $z); - -eval { ($x) = unpack 'a/a*/a*', '212ab345678901234567' }; -print $@ eq '' && $x eq 'ab3456789012' ? "ok $test\n" : "#$x,$@\nnot ok $test\n"; -$test++; - -eval { ($x) = unpack 'a/a*/a*', '3012ab345678901234567' }; -print $@ eq '' && $x eq 'ab3456789012' ? "ok $test\n" : "not ok $test\n"; -$test++; - -eval { ($x) = unpack 'a/a*/b*', '212ab' }; -my $expected_x = '100001100100'; -if ($Is_EBCDIC) { $expected_x = '100000010100'; } -print $@ eq '' && $x eq $expected_x ? "ok $test\n" : "#$x,$@\nnot ok $test\n"; -$test++; - -# 153..156: / with # - -eval { ($z,$x,$y) = unpack <