File: //usr/local/rvm/src/ruby-2.7.4/spec/ruby/core/string/undump_spec.rb
# encoding: utf-8
require_relative '../../spec_helper'
require_relative 'fixtures/classes'
ruby_version_is '2.5' do
describe "String#undump" do
ruby_version_is ''...'2.7' do
it "taints the result if self is tainted" do
'"foo"'.taint.undump.tainted?.should == true
end
it "untrusts the result if self is untrusted" do
'"foo"'.untrust.undump.untrusted?.should == true
end
end
it "does not take into account if a string is frozen" do
'"foo"'.freeze.undump.frozen?.should == false
end
it "always returns String instance" do
StringSpecs::MyString.new('"foo"').undump.should be_an_instance_of(String)
end
it "strips outer \"" do
'"foo"'.undump.should == 'foo'
end
it "returns a string with special characters in \\<char> notation replaced with the characters" do
[ ['"\\a"', "\a"],
['"\\b"', "\b"],
['"\\t"', "\t"],
['"\\n"', "\n"],
['"\\v"', "\v"],
['"\\f"', "\f"],
['"\\r"', "\r"],
['"\\e"', "\e"]
].should be_computed_by(:undump)
end
it "returns a string with unescaped sequences \" and \\" do
[ ['"\\""' , "\""],
['"\\\\"', "\\"]
].should be_computed_by(:undump)
end
it "returns a string with unescaped sequences \\#<char> when # is followed by $, @, {" do
[ ['"\\#$PATH"', "\#$PATH"],
['"\\#@a"', "\#@a"],
['"\\#@@a"', "\#@@a"],
['"\\#{a}"', "\#{a}"]
].should be_computed_by(:undump)
end
it "returns a string with # not escaped when followed by any other character" do
[ ['"#"', '#'],
['"#1"', '#1']
].should be_computed_by(:undump)
end
it "returns a string with printable non-alphanumeric characters" do
[ ['" "', ' '],
['"!"', '!'],
['"$"', '$'],
['"%"', '%'],
['"&"', '&'],
['"\'"', '\''],
['"("', '('],
['")"', ')'],
['"*"', '*'],
['"+"', '+'],
['","', ','],
['"-"', '-'],
['"."', '.'],
['"/"', '/'],
['":"', ':'],
['";"', ';'],
['"<"', '<'],
['"="', '='],
['">"', '>'],
['"?"', '?'],
['"@"', '@'],
['"["', '['],
['"]"', ']'],
['"^"', '^'],
['"_"', '_'],
['"`"', '`'],
['"{"', '{'],
['"|"', '|'],
['"}"', '}'],
['"~"', '~']
].should be_computed_by(:undump)
end
it "returns a string with numeric characters unescaped" do
[ ['"0"', "0"],
['"1"', "1"],
['"2"', "2"],
['"3"', "3"],
['"4"', "4"],
['"5"', "5"],
['"6"', "6"],
['"7"', "7"],
['"8"', "8"],
['"9"', "9"],
].should be_computed_by(:undump)
end
it "returns a string with upper-case alpha characters unescaped" do
[ ['"A"', 'A'],
['"B"', 'B'],
['"C"', 'C'],
['"D"', 'D'],
['"E"', 'E'],
['"F"', 'F'],
['"G"', 'G'],
['"H"', 'H'],
['"I"', 'I'],
['"J"', 'J'],
['"K"', 'K'],
['"L"', 'L'],
['"M"', 'M'],
['"N"', 'N'],
['"O"', 'O'],
['"P"', 'P'],
['"Q"', 'Q'],
['"R"', 'R'],
['"S"', 'S'],
['"T"', 'T'],
['"U"', 'U'],
['"V"', 'V'],
['"W"', 'W'],
['"X"', 'X'],
['"Y"', 'Y'],
['"Z"', 'Z']
].should be_computed_by(:undump)
end
it "returns a string with lower-case alpha characters unescaped" do
[ ['"a"', 'a'],
['"b"', 'b'],
['"c"', 'c'],
['"d"', 'd'],
['"e"', 'e'],
['"f"', 'f'],
['"g"', 'g'],
['"h"', 'h'],
['"i"', 'i'],
['"j"', 'j'],
['"k"', 'k'],
['"l"', 'l'],
['"m"', 'm'],
['"n"', 'n'],
['"o"', 'o'],
['"p"', 'p'],
['"q"', 'q'],
['"r"', 'r'],
['"s"', 's'],
['"t"', 't'],
['"u"', 'u'],
['"v"', 'v'],
['"w"', 'w'],
['"x"', 'x'],
['"y"', 'y'],
['"z"', 'z']
].should be_computed_by(:undump)
end
it "returns a string with \\x notation replaced with non-printing ASCII character" do
[ ['"\\x00"', 0000.chr.force_encoding('utf-8')],
['"\\x01"', 0001.chr.force_encoding('utf-8')],
['"\\x02"', 0002.chr.force_encoding('utf-8')],
['"\\x03"', 0003.chr.force_encoding('utf-8')],
['"\\x04"', 0004.chr.force_encoding('utf-8')],
['"\\x05"', 0005.chr.force_encoding('utf-8')],
['"\\x06"', 0006.chr.force_encoding('utf-8')],
['"\\x0E"', 0016.chr.force_encoding('utf-8')],
['"\\x0F"', 0017.chr.force_encoding('utf-8')],
['"\\x10"', 0020.chr.force_encoding('utf-8')],
['"\\x11"', 0021.chr.force_encoding('utf-8')],
['"\\x12"', 0022.chr.force_encoding('utf-8')],
['"\\x13"', 0023.chr.force_encoding('utf-8')],
['"\\x14"', 0024.chr.force_encoding('utf-8')],
['"\\x15"', 0025.chr.force_encoding('utf-8')],
['"\\x16"', 0026.chr.force_encoding('utf-8')],
['"\\x17"', 0027.chr.force_encoding('utf-8')],
['"\\x18"', 0030.chr.force_encoding('utf-8')],
['"\\x19"', 0031.chr.force_encoding('utf-8')],
['"\\x1A"', 0032.chr.force_encoding('utf-8')],
['"\\x1C"', 0034.chr.force_encoding('utf-8')],
['"\\x1D"', 0035.chr.force_encoding('utf-8')],
['"\\x1E"', 0036.chr.force_encoding('utf-8')],
['"\\x1F"', 0037.chr.force_encoding('utf-8')],
['"\\x7F"', 0177.chr.force_encoding('utf-8')],
['"\\x80"', 0200.chr.force_encoding('utf-8')],
['"\\x81"', 0201.chr.force_encoding('utf-8')],
['"\\x82"', 0202.chr.force_encoding('utf-8')],
['"\\x83"', 0203.chr.force_encoding('utf-8')],
['"\\x84"', 0204.chr.force_encoding('utf-8')],
['"\\x85"', 0205.chr.force_encoding('utf-8')],
['"\\x86"', 0206.chr.force_encoding('utf-8')],
['"\\x87"', 0207.chr.force_encoding('utf-8')],
['"\\x88"', 0210.chr.force_encoding('utf-8')],
['"\\x89"', 0211.chr.force_encoding('utf-8')],
['"\\x8A"', 0212.chr.force_encoding('utf-8')],
['"\\x8B"', 0213.chr.force_encoding('utf-8')],
['"\\x8C"', 0214.chr.force_encoding('utf-8')],
['"\\x8D"', 0215.chr.force_encoding('utf-8')],
['"\\x8E"', 0216.chr.force_encoding('utf-8')],
['"\\x8F"', 0217.chr.force_encoding('utf-8')],
['"\\x90"', 0220.chr.force_encoding('utf-8')],
['"\\x91"', 0221.chr.force_encoding('utf-8')],
['"\\x92"', 0222.chr.force_encoding('utf-8')],
['"\\x93"', 0223.chr.force_encoding('utf-8')],
['"\\x94"', 0224.chr.force_encoding('utf-8')],
['"\\x95"', 0225.chr.force_encoding('utf-8')],
['"\\x96"', 0226.chr.force_encoding('utf-8')],
['"\\x97"', 0227.chr.force_encoding('utf-8')],
['"\\x98"', 0230.chr.force_encoding('utf-8')],
['"\\x99"', 0231.chr.force_encoding('utf-8')],
['"\\x9A"', 0232.chr.force_encoding('utf-8')],
['"\\x9B"', 0233.chr.force_encoding('utf-8')],
['"\\x9C"', 0234.chr.force_encoding('utf-8')],
['"\\x9D"', 0235.chr.force_encoding('utf-8')],
['"\\x9E"', 0236.chr.force_encoding('utf-8')],
['"\\x9F"', 0237.chr.force_encoding('utf-8')],
['"\\xA0"', 0240.chr.force_encoding('utf-8')],
['"\\xA1"', 0241.chr.force_encoding('utf-8')],
['"\\xA2"', 0242.chr.force_encoding('utf-8')],
['"\\xA3"', 0243.chr.force_encoding('utf-8')],
['"\\xA4"', 0244.chr.force_encoding('utf-8')],
['"\\xA5"', 0245.chr.force_encoding('utf-8')],
['"\\xA6"', 0246.chr.force_encoding('utf-8')],
['"\\xA7"', 0247.chr.force_encoding('utf-8')],
['"\\xA8"', 0250.chr.force_encoding('utf-8')],
['"\\xA9"', 0251.chr.force_encoding('utf-8')],
['"\\xAA"', 0252.chr.force_encoding('utf-8')],
['"\\xAB"', 0253.chr.force_encoding('utf-8')],
['"\\xAC"', 0254.chr.force_encoding('utf-8')],
['"\\xAD"', 0255.chr.force_encoding('utf-8')],
['"\\xAE"', 0256.chr.force_encoding('utf-8')],
['"\\xAF"', 0257.chr.force_encoding('utf-8')],
['"\\xB0"', 0260.chr.force_encoding('utf-8')],
['"\\xB1"', 0261.chr.force_encoding('utf-8')],
['"\\xB2"', 0262.chr.force_encoding('utf-8')],
['"\\xB3"', 0263.chr.force_encoding('utf-8')],
['"\\xB4"', 0264.chr.force_encoding('utf-8')],
['"\\xB5"', 0265.chr.force_encoding('utf-8')],
['"\\xB6"', 0266.chr.force_encoding('utf-8')],
['"\\xB7"', 0267.chr.force_encoding('utf-8')],
['"\\xB8"', 0270.chr.force_encoding('utf-8')],
['"\\xB9"', 0271.chr.force_encoding('utf-8')],
['"\\xBA"', 0272.chr.force_encoding('utf-8')],
['"\\xBB"', 0273.chr.force_encoding('utf-8')],
['"\\xBC"', 0274.chr.force_encoding('utf-8')],
['"\\xBD"', 0275.chr.force_encoding('utf-8')],
['"\\xBE"', 0276.chr.force_encoding('utf-8')],
['"\\xBF"', 0277.chr.force_encoding('utf-8')],
['"\\xC0"', 0300.chr.force_encoding('utf-8')],
['"\\xC1"', 0301.chr.force_encoding('utf-8')],
['"\\xC2"', 0302.chr.force_encoding('utf-8')],
['"\\xC3"', 0303.chr.force_encoding('utf-8')],
['"\\xC4"', 0304.chr.force_encoding('utf-8')],
['"\\xC5"', 0305.chr.force_encoding('utf-8')],
['"\\xC6"', 0306.chr.force_encoding('utf-8')],
['"\\xC7"', 0307.chr.force_encoding('utf-8')],
['"\\xC8"', 0310.chr.force_encoding('utf-8')],
['"\\xC9"', 0311.chr.force_encoding('utf-8')],
['"\\xCA"', 0312.chr.force_encoding('utf-8')],
['"\\xCB"', 0313.chr.force_encoding('utf-8')],
['"\\xCC"', 0314.chr.force_encoding('utf-8')],
['"\\xCD"', 0315.chr.force_encoding('utf-8')],
['"\\xCE"', 0316.chr.force_encoding('utf-8')],
['"\\xCF"', 0317.chr.force_encoding('utf-8')],
['"\\xD0"', 0320.chr.force_encoding('utf-8')],
['"\\xD1"', 0321.chr.force_encoding('utf-8')],
['"\\xD2"', 0322.chr.force_encoding('utf-8')],
['"\\xD3"', 0323.chr.force_encoding('utf-8')],
['"\\xD4"', 0324.chr.force_encoding('utf-8')],
['"\\xD5"', 0325.chr.force_encoding('utf-8')],
['"\\xD6"', 0326.chr.force_encoding('utf-8')],
['"\\xD7"', 0327.chr.force_encoding('utf-8')],
['"\\xD8"', 0330.chr.force_encoding('utf-8')],
['"\\xD9"', 0331.chr.force_encoding('utf-8')],
['"\\xDA"', 0332.chr.force_encoding('utf-8')],
['"\\xDB"', 0333.chr.force_encoding('utf-8')],
['"\\xDC"', 0334.chr.force_encoding('utf-8')],
['"\\xDD"', 0335.chr.force_encoding('utf-8')],
['"\\xDE"', 0336.chr.force_encoding('utf-8')],
['"\\xDF"', 0337.chr.force_encoding('utf-8')],
['"\\xE0"', 0340.chr.force_encoding('utf-8')],
['"\\xE1"', 0341.chr.force_encoding('utf-8')],
['"\\xE2"', 0342.chr.force_encoding('utf-8')],
['"\\xE3"', 0343.chr.force_encoding('utf-8')],
['"\\xE4"', 0344.chr.force_encoding('utf-8')],
['"\\xE5"', 0345.chr.force_encoding('utf-8')],
['"\\xE6"', 0346.chr.force_encoding('utf-8')],
['"\\xE7"', 0347.chr.force_encoding('utf-8')],
['"\\xE8"', 0350.chr.force_encoding('utf-8')],
['"\\xE9"', 0351.chr.force_encoding('utf-8')],
['"\\xEA"', 0352.chr.force_encoding('utf-8')],
['"\\xEB"', 0353.chr.force_encoding('utf-8')],
['"\\xEC"', 0354.chr.force_encoding('utf-8')],
['"\\xED"', 0355.chr.force_encoding('utf-8')],
['"\\xEE"', 0356.chr.force_encoding('utf-8')],
['"\\xEF"', 0357.chr.force_encoding('utf-8')],
['"\\xF0"', 0360.chr.force_encoding('utf-8')],
['"\\xF1"', 0361.chr.force_encoding('utf-8')],
['"\\xF2"', 0362.chr.force_encoding('utf-8')],
['"\\xF3"', 0363.chr.force_encoding('utf-8')],
['"\\xF4"', 0364.chr.force_encoding('utf-8')],
['"\\xF5"', 0365.chr.force_encoding('utf-8')],
['"\\xF6"', 0366.chr.force_encoding('utf-8')],
['"\\xF7"', 0367.chr.force_encoding('utf-8')],
['"\\xF8"', 0370.chr.force_encoding('utf-8')],
['"\\xF9"', 0371.chr.force_encoding('utf-8')],
['"\\xFA"', 0372.chr.force_encoding('utf-8')],
['"\\xFB"', 0373.chr.force_encoding('utf-8')],
['"\\xFC"', 0374.chr.force_encoding('utf-8')],
['"\\xFD"', 0375.chr.force_encoding('utf-8')],
['"\\xFE"', 0376.chr.force_encoding('utf-8')],
['"\\xFF"', 0377.chr.force_encoding('utf-8')]
].should be_computed_by(:undump)
end
it "returns a string with \\u{} notation replaced with multi-byte UTF-8 characters" do
[ ['"\u{80}"', 0200.chr('utf-8')],
['"\u{81}"', 0201.chr('utf-8')],
['"\u{82}"', 0202.chr('utf-8')],
['"\u{83}"', 0203.chr('utf-8')],
['"\u{84}"', 0204.chr('utf-8')],
['"\u{86}"', 0206.chr('utf-8')],
['"\u{87}"', 0207.chr('utf-8')],
['"\u{88}"', 0210.chr('utf-8')],
['"\u{89}"', 0211.chr('utf-8')],
['"\u{8a}"', 0212.chr('utf-8')],
['"\u{8b}"', 0213.chr('utf-8')],
['"\u{8c}"', 0214.chr('utf-8')],
['"\u{8d}"', 0215.chr('utf-8')],
['"\u{8e}"', 0216.chr('utf-8')],
['"\u{8f}"', 0217.chr('utf-8')],
['"\u{90}"', 0220.chr('utf-8')],
['"\u{91}"', 0221.chr('utf-8')],
['"\u{92}"', 0222.chr('utf-8')],
['"\u{93}"', 0223.chr('utf-8')],
['"\u{94}"', 0224.chr('utf-8')],
['"\u{95}"', 0225.chr('utf-8')],
['"\u{96}"', 0226.chr('utf-8')],
['"\u{97}"', 0227.chr('utf-8')],
['"\u{98}"', 0230.chr('utf-8')],
['"\u{99}"', 0231.chr('utf-8')],
['"\u{9a}"', 0232.chr('utf-8')],
['"\u{9b}"', 0233.chr('utf-8')],
['"\u{9c}"', 0234.chr('utf-8')],
['"\u{9d}"', 0235.chr('utf-8')],
['"\u{9e}"', 0236.chr('utf-8')],
['"\u{9f}"', 0237.chr('utf-8')],
].should be_computed_by(:undump)
end
it "returns a string with \\uXXXX notation replaced with multi-byte UTF-8 characters" do
[ ['"\u0080"', 0200.chr('utf-8')],
['"\u0081"', 0201.chr('utf-8')],
['"\u0082"', 0202.chr('utf-8')],
['"\u0083"', 0203.chr('utf-8')],
['"\u0084"', 0204.chr('utf-8')],
['"\u0086"', 0206.chr('utf-8')],
['"\u0087"', 0207.chr('utf-8')],
['"\u0088"', 0210.chr('utf-8')],
['"\u0089"', 0211.chr('utf-8')],
['"\u008a"', 0212.chr('utf-8')],
['"\u008b"', 0213.chr('utf-8')],
['"\u008c"', 0214.chr('utf-8')],
['"\u008d"', 0215.chr('utf-8')],
['"\u008e"', 0216.chr('utf-8')],
['"\u008f"', 0217.chr('utf-8')],
['"\u0090"', 0220.chr('utf-8')],
['"\u0091"', 0221.chr('utf-8')],
['"\u0092"', 0222.chr('utf-8')],
['"\u0093"', 0223.chr('utf-8')],
['"\u0094"', 0224.chr('utf-8')],
['"\u0095"', 0225.chr('utf-8')],
['"\u0096"', 0226.chr('utf-8')],
['"\u0097"', 0227.chr('utf-8')],
['"\u0098"', 0230.chr('utf-8')],
['"\u0099"', 0231.chr('utf-8')],
['"\u009a"', 0232.chr('utf-8')],
['"\u009b"', 0233.chr('utf-8')],
['"\u009c"', 0234.chr('utf-8')],
['"\u009d"', 0235.chr('utf-8')],
['"\u009e"', 0236.chr('utf-8')],
['"\u009f"', 0237.chr('utf-8')],
].should be_computed_by(:undump)
end
it "undumps correctly string produced from non ASCII-compatible one" do
s = "\u{876}".encode('utf-16be')
s.dump.undump.should == s
'"\\bv".force_encoding("UTF-16BE")'.undump.should == "\u0876".encode('utf-16be')
end
it "keeps origin encoding" do
'"foo"'.encode("ISO-8859-1").undump.encoding.should == Encoding::ISO_8859_1
'"foo"'.encode('windows-1251').undump.encoding.should == Encoding::Windows_1251
end
describe "Limitations" do
it "cannot undump non ASCII-compatible string" do
-> { '"foo"'.encode('utf-16le').undump }.should raise_error(Encoding::CompatibilityError)
end
end
describe "invalid dump" do
it "raises RuntimeError exception if wrapping \" are missing" do
-> { 'foo'.undump }.should raise_error(RuntimeError, /invalid dumped string/)
-> { '"foo'.undump }.should raise_error(RuntimeError, /unterminated dumped string/)
-> { 'foo"'.undump }.should raise_error(RuntimeError, /invalid dumped string/)
-> { "'foo'".undump }.should raise_error(RuntimeError, /invalid dumped string/)
end
it "raises RuntimeError if there is incorrect \\x sequence" do
-> { '"\x"'.undump }.should raise_error(RuntimeError, /invalid hex escape/)
-> { '"\\x3y"'.undump }.should raise_error(RuntimeError, /invalid hex escape/)
end
it "raises RuntimeError in there is incorrect \\u sequence" do
-> { '"\\u"'.undump }.should raise_error(RuntimeError, /invalid Unicode escape/)
-> { '"\\u{"'.undump }.should raise_error(RuntimeError, /invalid Unicode escape/)
-> { '"\\u{3042"'.undump }.should raise_error(RuntimeError, /invalid Unicode escape/)
-> { '"\\u"'.undump }.should raise_error(RuntimeError, /invalid Unicode escape/)
end
it "raises RuntimeError if there is malformed dump of non ASCII-compatible string" do
-> { '"".force_encoding("BINARY"'.undump }.should raise_error(RuntimeError, /invalid dumped string/)
-> { '"".force_encoding("Unknown")'.undump }.should raise_error(RuntimeError, /dumped string has unknown encoding name/)
-> { '"".force_encoding()'.undump }.should raise_error(RuntimeError, /invalid dumped string/)
end
it "raises RuntimeError if string contains \0 character" do
-> { "\"foo\0\"".undump }.should raise_error(RuntimeError, /string contains null byte/)
end
it "raises RuntimeError if string contains non ASCII character" do
-> { "\"\u3042\"".undump }.should raise_error(RuntimeError, /non-ASCII character detected/)
end
it "raises RuntimeError if there are some excessive \"" do
-> { '" "" "'.undump }.should raise_error(RuntimeError, /invalid dumped string/)
end
end
end
end