ruby-changes:15792
From: akr <ko1@a...>
Date: Mon, 10 May 2010 23:55:06 +0900 (JST)
Subject: [ruby-changes:15792] Ruby:r27722 (ruby_1_8): backport pack and unpack tests from Ruby 1.9.
akr 2010-05-10 23:54:56 +0900 (Mon, 10 May 2010) New Revision: 27722 http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=27722 Log: backport pack and unpack tests from Ruby 1.9. Modified files: branches/ruby_1_8/test/ruby/test_pack.rb Index: ruby_1_8/test/ruby/test_pack.rb =================================================================== --- ruby_1_8/test/ruby/test_pack.rb (revision 27721) +++ ruby_1_8/test/ruby/test_pack.rb (revision 27722) @@ -20,6 +20,31 @@ assert_equal($x, $x.pack("l").unpack("l")) end + def test_pack_n + assert_equal "\000\000", [0].pack('n') + assert_equal "\000\001", [1].pack('n') + assert_equal "\000\002", [2].pack('n') + assert_equal "\000\003", [3].pack('n') + assert_equal "\377\376", [65534].pack('n') + assert_equal "\377\377", [65535].pack('n') + + assert_equal "\200\000", [2**15].pack('n') + assert_equal "\177\377", [-2**15-1].pack('n') + assert_equal "\377\377", [-1].pack('n') + + assert_equal "\000\001\000\001", [1,1].pack('n*') + assert_equal "\000\001\000\001\000\001", [1,1,1].pack('n*') + end + + def test_unpack_n + assert_equal 1, "\000\001".unpack('n')[0] + assert_equal 2, "\000\002".unpack('n')[0] + assert_equal 3, "\000\003".unpack('n')[0] + assert_equal 65535, "\377\377".unpack('n')[0] + assert_equal [1,1], "\000\001\000\001".unpack('n*') + assert_equal [1,1,1], "\000\001\000\001\000\001".unpack('n*') + end + def test_pack_N assert_equal "\000\000\000\000", [0].pack('N') assert_equal "\000\000\000\001", [1].pack('N') @@ -40,24 +65,208 @@ assert_equal 1, "\000\000\000\001".unpack('N')[0] assert_equal 2, "\000\000\000\002".unpack('N')[0] assert_equal 3, "\000\000\000\003".unpack('N')[0] - assert_equal 3, "\000\000\000\003".unpack('N')[0] assert_equal 4294967295, "\377\377\377\377".unpack('N')[0] assert_equal [1,1], "\000\000\000\001\000\000\000\001".unpack('N*') assert_equal [1,1,1], "\000\000\000\001\000\000\000\001\000\000\000\001".unpack('N*') end + def test_integer_endian + s = [1].pack("s") + assert_operator(["\0\1", "\1\0"], :include?, s) + if s == "\0\1" + # big endian + assert_equal("\x01\x02", [0x0102].pack("s")) + assert_equal("\x01\x02", [0x0102].pack("S")) + assert_equal("\x01\x02\x03\x04", [0x01020304].pack("l")) + assert_equal("\x01\x02\x03\x04", [0x01020304].pack("L")) + assert_equal("\x01\x02\x03\x04\x05\x06\x07\x08", [0x0102030405060708].pack("q")) + assert_equal("\x01\x02\x03\x04\x05\x06\x07\x08", [0x0102030405060708].pack("Q")) + assert_match(/\A\x00*\x01\x02\z/, [0x0102].pack("s!")) + assert_match(/\A\x00*\x01\x02\z/, [0x0102].pack("S!")) + assert_match(/\A\x00*\x01\x02\x03\x04\z/, [0x01020304].pack("i")) + assert_match(/\A\x00*\x01\x02\x03\x04\z/, [0x01020304].pack("I")) + assert_match(/\A\x00*\x01\x02\x03\x04\z/, [0x01020304].pack("i!")) + assert_match(/\A\x00*\x01\x02\x03\x04\z/, [0x01020304].pack("I!")) + assert_match(/\A\x00*\x01\x02\x03\x04\z/, [0x01020304].pack("l!")) + assert_match(/\A\x00*\x01\x02\x03\x04\z/, [0x01020304].pack("L!")) + %w[s S l L q Q s! S! i I i! I! l! L!].each {|fmt| + nuls = [0].pack(fmt) + v = 0 + s = "" + nuls.bytesize.times {|i| + j = i + 40 + v = v * 256 + j + s << [j].pack("C") + } + assert_equal(s, [v].pack(fmt), "[#{v}].pack(#{fmt.dump})") + assert_equal([v], s.unpack(fmt), "#{s.dump}.unpack(#{fmt.dump})") + s2 = s+s + fmt2 = fmt+"*" + assert_equal([v,v], s2.unpack(fmt2), "#{s2.dump}.unpack(#{fmt2.dump})") + } + else + # little endian + assert_equal("\x02\x01", [0x0102].pack("s")) + assert_equal("\x02\x01", [0x0102].pack("S")) + assert_equal("\x04\x03\x02\x01", [0x01020304].pack("l")) + assert_equal("\x04\x03\x02\x01", [0x01020304].pack("L")) + assert_equal("\x08\x07\x06\x05\x04\x03\x02\x01", [0x0102030405060708].pack("q")) + assert_equal("\x08\x07\x06\x05\x04\x03\x02\x01", [0x0102030405060708].pack("Q")) + assert_match(/\A\x02\x01\x00*\z/, [0x0102].pack("s!")) + assert_match(/\A\x02\x01\x00*\z/, [0x0102].pack("S!")) + assert_match(/\A\x04\x03\x02\x01\x00*\z/, [0x01020304].pack("i")) + assert_match(/\A\x04\x03\x02\x01\x00*\z/, [0x01020304].pack("I")) + assert_match(/\A\x04\x03\x02\x01\x00*\z/, [0x01020304].pack("i!")) + assert_match(/\A\x04\x03\x02\x01\x00*\z/, [0x01020304].pack("I!")) + assert_match(/\A\x04\x03\x02\x01\x00*\z/, [0x01020304].pack("l!")) + assert_match(/\A\x04\x03\x02\x01\x00*\z/, [0x01020304].pack("L!")) + %w[s S l L q Q s! S! i I i! I! l! L!].each {|fmt| + nuls = [0].pack(fmt) + v = 0 + s = "" + nuls.bytesize.times {|i| + j = i+40 + v = v * 256 + j + s << [j].pack("C") + } + s.reverse! + assert_equal(s, [v].pack(fmt), "[#{v}].pack(#{fmt.dump})") + assert_equal([v], s.unpack(fmt), "#{s.dump}.unpack(#{fmt.dump})") + s2 = s+s + fmt2 = fmt+"*" + assert_equal([v,v], s2.unpack(fmt2), "#{s2.dump}.unpack(#{fmt2.dump})") + } + end + end + def test_pack_U - assert_raises(RangeError) { [-0x40000001].pack("U") } - assert_raises(RangeError) { [-0x40000000].pack("U") } - assert_raises(RangeError) { [-1].pack("U") } + assert_raise(RangeError) { [-0x40000001].pack("U") } + assert_raise(RangeError) { [-0x40000000].pack("U") } + assert_raise(RangeError) { [-1].pack("U") } assert_equal "\000", [0].pack("U") assert_equal "\374\277\277\277\277\277", [0x3fffffff].pack("U") assert_equal "\375\200\200\200\200\200", [0x40000000].pack("U") assert_equal "\375\277\277\277\277\277", [0x7fffffff].pack("U") - assert_raises(RangeError) { [0x80000000].pack("U") } - assert_raises(RangeError) { [0x100000000].pack("U") } + assert_raise(RangeError) { [0x80000000].pack("U") } + assert_raise(RangeError) { [0x100000000].pack("U") } end + def test_pack_P + a = ["abc"] + assert_equal a, a.pack("P").unpack("P*") + assert_equal "a", a.pack("P").unpack("P")[0] + assert_equal a, a.pack("P").freeze.unpack("P*") + assert_raise(ArgumentError) { (a.pack("P") + "").unpack("P*") } + end + + def test_pack_p + a = ["abc"] + assert_equal a, a.pack("p").unpack("p*") + assert_equal a[0], a.pack("p").unpack("p")[0] + assert_equal a, a.pack("p").freeze.unpack("p*") + assert_raise(ArgumentError) { (a.pack("p") + "").unpack("p*") } + end + + def test_format_string_modified + fmt = "CC" + o = Object.new + class << o; self; end.class_eval do + define_method(:to_int) { fmt.replace ""; 0 } + end + assert_raise(RuntimeError) do + [o, o].pack(fmt) + end + end + + def test_comment + assert_equal("\0\1", [0,1].pack(" C #foo \n C ")) + assert_equal([0,1], "\0\1".unpack(" C #foo \n C ")) + end + + def test_illegal_bang + assert_raise(ArgumentError) { [].pack("a!") } + assert_raise(ArgumentError) { "".unpack("a!") } + end + + def test_pack_unpack_aA + assert_equal("f", ["foo"].pack("A")) + assert_equal("f", ["foo"].pack("a")) + assert_equal("foo", ["foo"].pack("A*")) + assert_equal("foo", ["foo"].pack("a*")) + assert_equal("fo", ["foo"].pack("A2")) + assert_equal("fo", ["foo"].pack("a2")) + assert_equal("foo ", ["foo"].pack("A4")) + assert_equal("foo\0", ["foo"].pack("a4")) + assert_equal(" ", [nil].pack("A")) + assert_equal("\0", [nil].pack("a")) + assert_equal("", [nil].pack("A*")) + assert_equal("", [nil].pack("a*")) + assert_equal(" ", [nil].pack("A2")) + assert_equal("\0\0", [nil].pack("a2")) + + assert_equal("foo" + "\0" * 27, ["foo"].pack("a30")) + + assert_equal(["f"], "foo\0".unpack("A")) + assert_equal(["f"], "foo\0".unpack("a")) + assert_equal(["foo"], "foo\0".unpack("A4")) + assert_equal(["foo\0"], "foo\0".unpack("a4")) + assert_equal(["foo"], "foo ".unpack("A4")) + assert_equal(["foo "], "foo ".unpack("a4")) + assert_equal(["foo"], "foo".unpack("A4")) + assert_equal(["foo"], "foo".unpack("a4")) + end + + def test_pack_unpack_Z + assert_equal("f", ["foo"].pack("Z")) + assert_equal("foo\0", ["foo"].pack("Z*")) + assert_equal("fo", ["foo"].pack("Z2")) + assert_equal("foo\0\0", ["foo"].pack("Z5")) + assert_equal("\0", [nil].pack("Z")) + assert_equal("\0", [nil].pack("Z*")) + assert_equal("\0\0", [nil].pack("Z2")) + + assert_equal(["f"], "foo\0".unpack("Z")) + assert_equal(["foo"], "foo".unpack("Z*")) + assert_equal(["foo"], "foo\0".unpack("Z*")) + assert_equal(["foo"], "foo".unpack("Z5")) + end + + def test_pack_unpack_bB + assert_equal("\xff\x00", ["1111111100000000"].pack("b*")) + assert_equal("\x01\x02", ["1000000001000000"].pack("b*")) + assert_equal("", ["1"].pack("b0")) + assert_equal("\x01", ["1"].pack("b1")) + assert_equal("\x01\x00", ["1"].pack("b2")) + assert_equal("\x01\x00", ["1"].pack("b3")) + assert_equal("\x01\x00\x00", ["1"].pack("b4")) + assert_equal("\x01\x00\x00", ["1"].pack("b5")) + assert_equal("\x01\x00\x00\x00", ["1"].pack("b6")) + + assert_equal("\xff\x00", ["1111111100000000"].pack("B*")) + assert_equal("\x01\x02", ["0000000100000010"].pack("B*")) + assert_equal("", ["1"].pack("B0")) + assert_equal("\x80", ["1"].pack("B1")) + assert_equal("\x80\x00", ["1"].pack("B2")) + assert_equal("\x80\x00", ["1"].pack("B3")) + assert_equal("\x80\x00\x00", ["1"].pack("B4")) + assert_equal("\x80\x00\x00", ["1"].pack("B5")) + assert_equal("\x80\x00\x00\x00", ["1"].pack("B6")) + + assert_equal(["1111111100000000"], "\xff\x00".unpack("b*")) + assert_equal(["1000000001000000"], "\x01\x02".unpack("b*")) + assert_equal([""], "".unpack("b0")) + assert_equal(["1"], "\x01".unpack("b1")) + assert_equal(["10"], "\x01".unpack("b2")) + assert_equal(["100"], "\x01".unpack("b3")) + + assert_equal(["1111111100000000"], "\xff\x00".unpack("B*")) + assert_equal(["0000000100000010"], "\x01\x02".unpack("B*")) + assert_equal([""], "".unpack("B0")) + assert_equal(["1"], "\x80".unpack("B1")) + assert_equal(["10"], "\x80".unpack("B2")) + assert_equal(["100"], "\x80".unpack("B3")) + end + def test_pack_unpack_hH assert_equal("\x01\xfe", ["10ef"].pack("h*")) assert_equal("", ["10ef"].pack("h0")) @@ -98,8 +307,276 @@ assert_equal(["10ef"], "\x10\xef".unpack("H5")) end + def test_pack_unpack_cC + assert_equal("\0\1\xff", [0, 1, 255].pack("c*")) + assert_equal("\0\1\xff", [0, 1, -1].pack("c*")) + + assert_equal("\0\1\xff", [0, 1, 255].pack("C*")) + assert_equal("\0\1\xff", [0, 1, -1].pack("C*")) + + assert_equal([0, 1, -1], "\0\1\xff".unpack("c*")) + + assert_equal([0, 1, 255], "\0\1\xff".unpack("C*")) + end + + def test_pack_unpack_sS + s1 = [513, -514].pack("s*") + s2 = [513, 65022].pack("S*") + assert_equal(s1, s2) + assert_equal([513, -514], s2.unpack("s*")) + assert_equal([513, 65022], s1.unpack("S*")) + + s1 = [513, -514].pack("s!*") + s2 = [513, 65022].pack("S!*") + assert_equal(s1, s2) + assert_equal([513, -514], s2.unpack("s!*")) + assert_equal([513, 65022], s1.unpack("S!*")) + + assert_equal(2, [1].pack("s").bytesize) + assert_equal(2, [1].pack("S").bytesize) + assert_operator(2, :<=, [1].pack("s!").bytesize) + assert_operator(2, :<=, [1].pack("S!").bytesize) + end + + def test_pack_unpack_iI + s1 = [67305985, -50462977].pack("i*") + s2 = [67305985, 4244504319].pack("I*") + assert_equal(s1, s2) + assert_equal([67305985, -50462977], s2.unpack("i*")) + assert_equal([67305985, 4244504319], s1.unpack("I*")) + + s1 = [67305985, -50462977].pack("i!*") + s2 = [67305985, 4244504319].pack("I!*") + assert_equal([67305985, -50462977], s1.unpack("i!*")) + assert_equal([67305985, 4244504319], s2.unpack("I!*")) + + assert_operator(4, :<=, [1].pack("i").bytesize) + assert_operator(4, :<=, [1].pack("I").bytesize) + assert_operator(4, :<=, [1].pack("i!").bytesize) + assert_operator(4, :<=, [1].pack("I!").bytesize) + end + + def test_pack_unpack_lL + s1 = [67305985, -50462977].pack("l*") + s2 = [67305985, 4244504319].pack("L*") + assert_equal(s1, s2) + assert_equal([67305985, -50462977], s2.unpack("l*")) + assert_equal([67305985, 4244504319], s1.unpack("L*")) + + s1 = [67305985, -50462977].pack("l!*") + s2 = [67305985, 4244504319].pack("L!*") + assert_equal([67305985, -50462977], s1.unpack("l!*")) + assert_equal([67305985, 4244504319], s2.unpack("L!*")) + + assert_equal(4, [1].pack("l").bytesize) + assert_equal(4, [1].pack("L").bytesize) + assert_operator(4, :<=, [1].pack("l!").bytesize) + assert_operator(4, :<=, [1].pack("L!").bytesize) + end + + def test_pack_unpack_qQ + s1 = [578437695752307201, -506097522914230529].pack("q*") + s2 = [578437695752307201, 17940646550795321087].pack("Q*") + assert_equal(s1, s2) + assert_equal([578437695752307201, -506097522914230529], s2.unpack("q*")) + assert_equal([578437695752307201, 17940646550795321087], s1.unpack("Q*")) + + assert_equal(8, [1].pack("q").bytesize) + assert_equal(8, [1].pack("Q").bytesize) + end + + def test_pack_unpack_nN + assert_equal("\000\000\000\001\377\377\177\377\200\000\377\377", [0,1,-1,32767,-32768,65535].pack("n*")) + assert_equal("\000\000\000\000\000\000\000\001\377\377\377\377", [0,1,-1].pack("N*")) + + assert_equal([0,1,65535,32767,32768,65535], "\000\000\000\001\377\377\177\377\200\000\377\377".unpack("n*")) + assert_equal([0,1,4294967295], "\000\000\000\000\000\000\000\001\377\377\377\377".unpack("N*")) + + assert_equal(2, [1].pack("n").bytesize) + assert_equal(4, [1].pack("N").bytesize) + end + + def test_pack_unpack_vV + assert_equal("\000\000\001\000\377\377\377\177\000\200\377\377", [0,1,-1,32767,-32768,65535].pack("v*")) + assert_equal("\000\000\000\000\001\000\000\000\377\377\377\377", [0,1,-1].pack("V*")) + + assert_equal([0,1,65535,32767,32768,65535], "\000\000\001\000\377\377\377\177\000\200\377\377".unpack("v*")) + assert_equal([0,1,4294967295], "\000\000\000\000\001\000\000\000\377\377\377\377".unpack("V*")) + + assert_equal(2, [1].pack("v").bytesize) + assert_equal(4, [1].pack("V").bytesize) + end + + def test_pack_unpack_fdeEgG + inf = 1.0/0.0 + nan = inf/inf + [0.0, 1.0, 3.0, inf, -inf, nan].each do |x| + %w(f d e E g G).each do |f| + v = [x].pack(f).unpack(f) + if x.nan? + assert(v.first.nan?) + else + assert_equal([x], v) + end + end + end + end + + def test_pack_unpack_x + assert_equal("", [].pack("x0")) + assert_equal("\0", [].pack("x")) + assert_equal("\0" * 30, [].pack("x30")) + + assert_equal([0, 2], "\x00\x00\x02".unpack("CxC")) + assert_raise(ArgumentError) { "".unpack("x") } + end + + def test_pack_unpack_X + assert_equal("\x00\x02", [0, 1, 2].pack("CCXC")) + assert_equal("\x02", [0, 1, 2].pack("CCX2C")) + assert_raise(ArgumentError) { [].pack("X") } + + assert_equal([0, 2, 2], "\x00\x02".unpack("CCXC")) + assert_raise(ArgumentError) { "".unpack("X") } + end + + def test_pack_unpack_atmark + assert_equal("\x01\x00\x00\x02", [1, 2].pack("C@3C")) + assert_equal("\x02", [1, 2].pack("C@0C")) + assert_equal("\x01\x02", [1, 2].pack("C@1C")) + + assert_equal([1, 2], "\x01\x00\x00\x02".unpack("C@3C")) + assert_equal([nil], "\x00".unpack("@1C")) # is it OK? + assert_raise(ArgumentError) { "\x00".unpack("@2C") } + end + + def test_pack_unpack_percent + assert_raise(ArgumentError) { [].pack("%") } + assert_raise(ArgumentError) { "".unpack("%") } + end + + def test_pack_unpack_U + assert_equal([0], [0].pack("U").unpack("U")) + assert_equal([0x80], [0x80].pack("U").unpack("U")) + assert_equal([0x800], [0x800].pack("U").unpack("U")) + assert_equal([0x10000], [0x10000].pack("U").unpack("U")) + assert_equal([0x400000], [0x400000].pack("U").unpack("U")) + + assert_raise(ArgumentError) { "\x80".unpack("U") } + assert_raise(ArgumentError) { "\xff".unpack("U") } + assert_raise(ArgumentError) { "\xfc\x00".unpack("U") } + assert_raise(ArgumentError) { "\xc0\xc0".unpack("U") } + assert_raise(ArgumentError) { "\xe0\x80\x80".unpack("U") } + end + + def test_pack_unpack_u + assert_equal("", [""].pack("u")) + assert_equal("!80``\n", ["a"].pack("u")) + assert_equal("#86)C\n", ["abc"].pack("u")) + assert_equal("$86)C9```\n", ["abcd"].pack("u")) + assert_equal("M86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A\n", ["a"*45].pack("u")) + assert_equal("M86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A\n!80``\n", ["a"*46].pack("u")) + assert_equal("&86)C9&5F\n#9VAI\n", ["abcdefghi"].pack("u6")) + + assert_equal("M86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A\n!80``\n", ["a"*46].pack("u0")) + assert_equal("M86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A\n!80``\n", ["a"*46].pack("u1")) + assert_equal("M86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A\n!80``\n", ["a"*46].pack("u2")) + + assert_equal([""], "".unpack("u")) + assert_equal(["a"], "!80``\n".unpack("u")) + assert_equal(["abc"], "#86)C\n".unpack("u")) + assert_equal(["abcd"], "$86)C9```\n".unpack("u")) + assert_equal(["a"*45], "M86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A\n".unpack("u")) + assert_equal(["a"*46], "M86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A\n!80``\n".unpack("u")) + assert_equal(["abcdefghi"], "&86)C9&5F\n#9VAI\n".unpack("u")) + + assert_equal(["\x00"], "\"\n".unpack("u")) + assert_equal(["\x00"], "! \r \n".unpack("u")) + end + + def test_pack_unpack_m + assert_equal("", [""].pack("m")) + assert_equal("AA==\n", ["\0"].pack("m")) + assert_equal("AAA=\n", ["\0\0"].pack("m")) + assert_equal("AAAA\n", ["\0\0\0"].pack("m")) + assert_equal("/w==\n", ["\377"].pack("m")) + assert_equal("//8=\n", ["\377\377"].pack("m")) + assert_equal("////\n", ["\377\377\377"].pack("m")) + + assert_equal([""], "".unpack("m")) + assert_equal(["\0"], "AA==\n".unpack("m")) + assert_equal(["\0\0"], "AAA=\n".unpack("m")) + assert_equal(["\0\0\0"], "AAAA\n".unpack("m")) + assert_equal(["\377"], "/w==\n".unpack("m")) + assert_equal(["\377\377"], "//8=\n".unpack("m")) + assert_equal(["\377\377\377"], "////\n".unpack("m")) + end + + def test_pack_unpack_M + assert_equal("a b c\td =\n\ne=\n", ["a b c\td \ne"].pack("M")) + assert_equal(["a b c\td \ne"], "a b c\td =\n\ne=\n".unpack("M")) + assert_equal("=00=\n", ["\0"].pack("M")) + assert_equal("a"*73+"=\na=\n", ["a"*74].pack("M")) + assert_equal(("a"*73+"=\n")*14+"a=\n", ["a"*1023].pack("M")) + assert_equal(["\0"], "=00=\n".unpack("M")) + assert_equal(["a"*74], ("a"*73+"=\na=\n").unpack("M")) + assert_equal(["a"*1023], (("a"*73+"=\n")*14+"a=\n").unpack("M")) + assert_equal(["\x0a"], "=0a=\n".unpack("M")) + assert_equal(["\x0a"], "=0A=\n".unpack("M")) + assert_equal([""], "=0Z=\n".unpack("M")) + assert_equal([""], "=\r\n".unpack("M")) + end + + def test_pack_unpack_P2 + assert_raise(ArgumentError) { ["abc"].pack("P4") } + assert_raise(ArgumentError) { [""].pack("P") } + + assert_equal([], ".".unpack("P")) + assert_equal([], ".".unpack("p")) + assert_equal([nil], ("\0" * 1024).unpack("P")) + end + + def test_pack_p2 + assert_match(/\A\0*\Z/, [nil].pack("p")) + end + + def test_pack_unpack_w + assert_equal("\000", [0].pack("w")) + assert_equal("\001", [1].pack("w")) + assert_equal("\177", [127].pack("w")) + assert_equal("\201\000", [128].pack("w")) + assert_equal("\377\177", [0x3fff].pack("w")) + assert_equal("\201\200\000", [0x4000].pack("w")) + assert_equal("\203\377\377\377\177", [0x3fffffff].pack("w")) + assert_equal("\204\200\200\200\000", [0x40000000].pack("w")) + assert_equal("\217\377\377\377\177", [0xffffffff].pack("w")) + assert_equal("\220\200\200\200\000", [0x100000000].pack("w")) + assert_raise(ArgumentError) { [-1].pack("w") } + + assert_equal([0], "\000".unpack("w")) + assert_equal([1], "\001".unpack("w"), [1]) + assert_equal([127], "\177".unpack("w"), [127]) + assert_equal([128], "\201\000".unpack("w"), [128]) + assert_equal([0x3fff], "\377\177".unpack("w"), [0x3fff]) + assert_equal([0x4000], "\201\200\000".unpack("w"), [0x4000]) + assert_equal([0x3fffffff], "\203\377\377\377\177".unpack("w"), [0x3fffffff]) + assert_equal([0x40000000], "\204\200\200\200\000".unpack("w"), [0x40000000]) + assert_equal([0xffffffff], "\217\377\377\377\177".unpack("w"), [0xffffffff]) + assert_equal([0x100000000], "\220\200\200\200\000".unpack("w"), [0x100000000]) + end + + def test_modify_under_safe4 + s = "foo" + assert_raise(SecurityError) do + Thread.new do + $SAFE = 4 + s.replace "" + end.join + end + end + def test_short_string - %w[n N v V s S l L q Q].each {|fmt| + %w[n N v V s S i I l L q Q s! S! i! I! l! l!].each {|fmt| str = [1].pack(fmt) assert_equal([1,nil], str.unpack("#{fmt}2")) } -- ML: ruby-changes@q... Info: http://www.atdot.net/~ko1/quickml/