require 'test/unit'
class TestRegexp < Test::Unit::TestCase
def setup
@verbose = $VERBOSE
$VERBOSE = nil
end
def teardown
$VERBOSE = @verbose
end
def test_ruby_core_27247
assert_match(/(a){2}z/, "aaz")
end
def test_ruby_dev_24643
assert_nothing_raised("[ruby-dev:24643]") {
/(?:(?:[a]*[a])?b)*a*$/ =~ "aabaaca"
}
end
def test_ruby_talk_116455
assert_match(/^(\w{2,}).* ([A-Za-z\xa2\xc0-\xff]{2,}?)$/n, "Hallo Welt")
end
def test_ruby_dev_24887
assert_equal("a".gsub(/a\Z/, ""), "")
end
def test_yoshidam_net_20041111_1
s = "[\xC2\xA0-\xC3\xBE]"
assert_match(Regexp.new(s, nil, "u"), "\xC3\xBE")
end
def test_ruby_dev_31309
assert_equal('Ruby', 'Ruby'.sub(/[^a-z]/i, '-'))
end
def test_assert_normal_exit
Regexp.union("a", "a")
end
def test_to_s
assert_equal '(?-mix:\000)', Regexp.new("\0").to_s
end
def test_source
assert_equal('', //.source)
end
def test_inspect
assert_equal('//', //.inspect)
assert_equal('//i', //i.inspect)
assert_equal('/\//i', /\//i.inspect)
assert_equal('/\//i', %r"#{'/'}"i.inspect)
assert_equal('/\/x/i', /\/x/i.inspect)
assert_equal('/\000/i', /#{"\0"}/i.inspect)
assert_equal("/\n/i", /#{"\n"}/i.inspect)
s = [0xff].pack("C")
assert_equal('/\/'+s.dump.delete('"')+'/i', /\/#{s}/i.inspect)
end
def test_char_to_option
assert_equal("BAR", "FOOBARBAZ"[/b../i])
assert_equal("bar", "foobarbaz"[/ b . . /x])
assert_equal("bar\n", "foo\nbar\nbaz"[/b.../m])
assert_raise(SyntaxError) { eval('//z') }
end
def test_char_to_option_kcode
assert_equal("bar", "foobarbaz"[/b../s])
assert_equal("bar", "foobarbaz"[/b../e])
assert_equal("bar", "foobarbaz"[/b../u])
end
def test_to_s2
assert_equal('(?-mix:foo)', /(?:foo)/.to_s)
assert_equal('(?m-ix:foo)', /(?:foo)/m.to_s)
assert_equal('(?mi-x:foo)', /(?:foo)/mi.to_s)
assert_equal('(?mix:foo)', /(?:foo)/mix.to_s)
assert_equal('(?m-ix:foo)', /(?m-ix:foo)/.to_s)
assert_equal('(?mi-x:foo)', /(?mi-x:foo)/.to_s)
assert_equal('(?mix:foo)', /(?mix:foo)/.to_s)
assert_equal('(?mix:)', /(?mix)/.to_s)
assert_equal('(?-mix:(?mix:foo) )', /(?mix:foo) /.to_s)
end
def test_casefold_p
assert_equal(false, /a/.casefold?)
assert_equal(true, /a/i.casefold?)
assert_equal(false, /(?i:a)/.casefold?)
end
def test_options
assert_equal(Regexp::IGNORECASE, /a/i.options)
assert_equal(Regexp::EXTENDED, /a/x.options)
assert_equal(Regexp::MULTILINE, /a/m.options)
end
def test_match_init_copy
m = /foo/.match("foo")
assert_raise(TypeError) do
m.instance_eval { initialize_copy(nil) }
end
assert_equal([0, 3], m.offset(0))
end
def test_match_size
m = /(.)(.)(\d+)(\d)/.match("THX1138.")
assert_equal(5, m.size)
end
def test_match_array
m = /(...)(...)(...)(...)?/.match("foobarbaz")
assert_equal(["foobarbaz", "foo", "bar", "baz", nil], m.to_a)
end
def test_match_captures
m = /(...)(...)(...)(...)?/.match("foobarbaz")
assert_equal(["foo", "bar", "baz", nil], m.captures)
end
def test_match_aref
m = /(...)(...)(...)(...)?/.match("foobarbaz")
assert_equal("foo", m[1])
assert_equal(["foo", "bar", "baz"], m[1..3])
assert_nil(m[5])
end
def test_match_values_at
m = /(...)(...)(...)(...)?/.match("foobarbaz")
assert_equal(["foo", "bar", "baz"], m.values_at(1, 2, 3))
end
def test_match_inspect
m = /(...)(...)(...)(...)?/.match("foobarbaz")
assert_equal('#<MatchData "foobarbaz" 1:"foo" 2:"bar" 3:"baz" 4:nil>', m.inspect)
end
def test_initialize
assert_raise(ArgumentError) { Regexp.new }
assert_equal(/foo/, Regexp.new(/foo/, Regexp::IGNORECASE))
re = /foo/
assert_raise(SecurityError) do
Thread.new { $SAFE = 4; re.instance_eval { initialize(re) } }.join
end
re.taint
assert_raise(SecurityError) do
Thread.new { $SAFE = 4; re.instance_eval { initialize(re) } }.join
end
assert_equal("bar", "foobarbaz"[Regexp.new("b..", nil, "n")])
assert_equal(//n, Regexp.new("", nil, "n"))
assert_raise(RegexpError) { Regexp.new(")(") }
end
def test_unescape
assert_raise(RegexpError) { s = '\\'; /#{ s }/ }
assert_equal(/\xFF/n, /#{ s="\\xFF" }/n)
assert_equal(/\177/, (s = '\177'; /#{ s }/))
assert_raise(RegexpError) { s = '\x'; /#{ s }/ }
assert_equal("\xe1", [0x00, 0xe1, 0xff].pack("C*")[/\M-a/])
assert_equal("\xdc", [0x00, 0xdc, 0xff].pack("C*")[/\M-\\/])
assert_equal("\x8a", [0x00, 0x8a, 0xff].pack("C*")[/\M-\n/])
assert_equal("\x89", [0x00, 0x89, 0xff].pack("C*")[/\M-\t/])
assert_equal("\x8d", [0x00, 0x8d, 0xff].pack("C*")[/\M-\r/])
assert_equal("\x8c", [0x00, 0x8c, 0xff].pack("C*")[/\M-\f/])
assert_equal("\x8b", [0x00, 0x8b, 0xff].pack("C*")[/\M-\v/])
assert_equal("\x87", [0x00, 0x87, 0xff].pack("C*")[/\M-\a/])
assert_equal("\x9b", [0x00, 0x9b, 0xff].pack("C*")[/\M-\e/])
assert_equal("\x01", [0x00, 0x01, 0xff].pack("C*")[/\C-a/])
assert_raise(RegexpError) { s = '\M'; /#{ s }/ }
assert_raise(RegexpError) { s = '\M-\\'; /#{ s }/ }
assert_raise(RegexpError) { s = '\C'; /#{ s }/ }
assert_raise(RegexpError) { s = '\c'; /#{ s }/ }
s = ".........."
5.times { s.sub!(".", "") }
assert_equal(".....", s)
end
def test_equal
assert_equal(true, /abc/ == /abc/)
assert_equal(false, /abc/ == /abc/m)
assert_equal(false, /abc/ == /abd/)
end
def test_match
assert_nil(//.match(nil))
assert_raise(TypeError) { /.../.match(Object.new)[0] }
$_ = "abc"; assert_equal(1, ~/bc/)
$_ = "abc"; assert_nil(~/d/)
$_ = nil; assert_nil(~/./)
end
def test_eqq
assert_equal(false, /../ === nil)
end
def test_quote
assert_equal("\xff", Regexp.quote([0xff].pack("C")))
assert_equal("\\ ", Regexp.quote("\ "))
assert_equal("\\t", Regexp.quote("\t"))
assert_equal("\\n", Regexp.quote("\n"))
assert_equal("\\r", Regexp.quote("\r"))
assert_equal("\\f", Regexp.quote("\f"))
assert_equal("\\t\xff", Regexp.quote("\t" + [0xff].pack("C")))
end
def test_union2
assert_equal(/(?!)/, Regexp.union)
assert_equal(/foo/, Regexp.union(/foo/))
assert_equal(/foo/, Regexp.union([/foo/]))
assert_equal(/\t/, Regexp.union("\t"))
end
def test_dup
assert_equal(//, //.dup)
assert_raise(TypeError) { //.instance_eval { initialize_copy(nil) } }
end
def test_regsub
assert_equal("fooXXXbaz", "foobarbaz".sub!(/bar/, "XXX"))
s = [0xff].pack("C")
assert_equal(s, "X".sub!(/./, s))
assert_equal('\\' + s, "X".sub!(/./, '\\' + s))
assert_equal('\k', "foo".sub!(/.../, '\k'))
assert_equal('foo[bar]baz', "foobarbaz".sub!(/(b..)/, '[\0]'))
assert_equal('foo[foo]baz', "foobarbaz".sub!(/(b..)/, '[\`]'))
assert_equal('foo[baz]baz', "foobarbaz".sub!(/(b..)/, '[\\\']'))
assert_equal('foo[r]baz', "foobarbaz".sub!(/(b)(.)(.)/, '[\+]'))
assert_equal('foo[\\]baz', "foobarbaz".sub!(/(b..)/, '[\\\\]'))
assert_equal('foo[\z]baz', "foobarbaz".sub!(/(b..)/, '[\z]'))
end
def test_KCODE
assert_nothing_raised { $KCODE = 'n' }
assert_equal('NONE', $KCODE)
assert_equal(false, $=)
assert_nothing_raised { $= = nil }
end
def test_match_setter
/foo/ =~ "foo"
m = $~
/bar/ =~ "bar"
$~ = m
assert_equal("foo", $&)
end
def test_last_match
/(...)(...)(...)(...)?/.match("foobarbaz")
assert_equal("foobarbaz", Regexp.last_match(0))
assert_equal("foo", Regexp.last_match(1))
assert_nil(Regexp.last_match(5))
assert_nil(Regexp.last_match(-1))
end
def test_getter
alias $__REGEXP_TEST_LASTMATCH__ $&
alias $__REGEXP_TEST_PREMATCH__ $`
alias $__REGEXP_TEST_POSTMATCH__ $'
alias $__REGEXP_TEST_LASTPARENMATCH__ $+
/(b)(.)(.)/.match("foobarbaz")
assert_equal("bar", $__REGEXP_TEST_LASTMATCH__)
assert_equal("foo", $__REGEXP_TEST_PREMATCH__)
assert_equal("baz", $__REGEXP_TEST_POSTMATCH__)
assert_equal("r", $__REGEXP_TEST_LASTPARENMATCH__)
/(...)(...)(...)/.match("foobarbaz")
assert_equal("baz", $+)
end
def test_taint
m = Thread.new do
"foo"[/foo/]
$SAFE = 4
/foo/.match("foo")
end.value
assert(m.tainted?)
assert_nothing_raised('[ruby-core:26137]') {
m = proc {$SAFE = 4; %r"#{ }"o}.call
}
assert(m.tainted?)
end
def check(re, ss, fs = [])
re = Regexp.new(re) unless re.is_a?(Regexp)
ss = [ss] unless ss.is_a?(Array)
ss.each do |e, s|
s ||= e
assert_match(re, s)
m = re.match(s)
assert_equal(e, m[0])
end
fs = [fs] unless fs.is_a?(Array)
fs.each {|s| assert_no_match(re, s) }
end
def failcheck(re)
assert_raise(RegexpError) { %r"#{ re }" }
end
def test_parse
check(/\*\+\?\{\}\|\(\)\<\>\`\'/, "*+?{}|()<>`'")
check(/\A\w\W\z/, %w(a. b!), %w(.. ab))
check(/\A.\b.\b.\B.\B.\z/, %w(a.aaa .a...), %w(aaaaa .....))
check(/\A\s\S\z/, [' a', "\n."], [' ', "\n\n", 'a '])
check(/\A\d\D\z/, '0a', %w(00 aa))
check(/\Afoo\Z\s\z/, "foo\n", ["foo", "foo\nbar"])
assert_equal(%w(a b c), "abc def".scan(/\G\w/))
check(/\A(..)\1\z/, %w(abab ....), %w(abba aba))
check(/\A\77\z/, "?")
check(/\A\78\z/, "\7" + '8', ["\100", ""])
check(/\A\Qfoo\E\z/, "QfooE")
failcheck('\Aa++\z')
check('\Ax]\z', "x]")
check(/x check(/\Ax check(/\A\n\z/, "\n")
check(/\A\t\z/, "\t")
check(/\A\r\z/, "\r")
check(/\A\f\z/, "\f")
check(/\A\a\z/, "\007")
check(/\A\e\z/, "\033")
check(/\A\v\z/, "\v")
failcheck('(')
failcheck('(?foo)')
failcheck('/[1-\w]/')
end
def test_exec
check(/A*B/, %w(B AB AAB AAAB), %w(A))
check(/\w*!/, %w(! a! ab! abc!), %w(abc))
check(/\w*\W/, %w(! a" ab# abc$), %w(abc))
check(/\w*\w/, %w(z az abz abcz), %w(!))
check(/[a-z]*\w/, %w(z az abz abcz), %w(!))
check(/[a-z]*\W/, %w(! a" ab check(/((a|bb|ccc|dddd)(1|22|333|4444))/i, %w(a1 bb1 a22), %w(a2 b1))
check(/abc\B.\Bxyz/, %w(abcXxyz abc0xyz), %w(abc|xyz abc-xyz))
check(/\Bxyz/, [%w(xyz abcXxyz), %w(xyz abc0xyz)], %w(abc xyz abc-xyz))
check(/abc\B/, [%w(abc abcXxyz), %w(abc abc0xyz)], %w(abc xyz abc-xyz))
failcheck('(?<foo>abc)\1')
check(eval('/^(?:a?)?$/'), ["", "a"], ["aa"])
check(eval('/^(?:a+)?$/'), ["", "a", "aa"], ["ab"])
check(/^a??[ab]/, [["a", "a"], ["a", "aa"], ["b", "b"], ["a", "ab"]], ["c"])
check(/^(?:a*){3,5}$/, ["", "a", "aa", "aaa", "aaaa", "aaaaa", "aaaaaa"], ["b"])
check(/^(?:a+){3,5}$/, ["aaa", "aaaa", "aaaaa", "aaaaaa"], ["", "a", "aa", "b"])
end
def test_parse_curly_brace
check(/\Aa{0}+\z/, "", %w(a aa aab))
check(/\Aa{1}+\z/, %w(a aa), ["", "aab"])
check(/\Aa{1,2}b{1,2}\z/, %w(ab aab abb aabb), ["", "aaabb", "abbb"])
check(/(?!x){0,1}/, [ ['', 'ab'], ['', ''] ])
failcheck('.{100001}')
failcheck('.{0,100001}')
failcheck('.{1,0}')
failcheck('{0}')
end
def test_char_class
failcheck('[]')
failcheck('[x')
check('\A[]]\z', "]", "")
check('\A[]\.]+\z', %w(] . ]..]), ["", "["])
check(/\A[abc]+\z/, "abcba", ["", "ada"])
check(/\A[\w][\W]\z/, %w(a. b!), %w(.. ab))
check(/\A[\s][\S]\z/, [' a', "\n."], [' ', "\n\n", 'a '])
check(/\A[\d][\D]\z/, '0a', %w(00 aa))
check(/\A[\xff]\z/, "\xff", ["", "\xfe"])
check(/\A[\80]+\z/, "8008", ["\\80", "\100", "\1000"])
check(/\A[\77]+\z/, "???")
check(/\A[\78]+\z/, "\788\7")
check(/\A[\0]\z/, "\0")
check(/\A[0-]\z/, ["0", "-"], "0-")
check('\A[--0]\z', ["-", "/", "0"], ["", "1"])
check('\A[\'--0]\z', %w(* + \( \) 0 ,), ["", ".", "1"])
check(/\A[a-b-]\z/, %w(a b -), ["", "c"])
check(/\A[\n\r\t]\z/, ["\n", "\r", "\t"])
failcheck('[9-1]')
assert_match(/\A\d+\z/, "0123456789")
assert_match(/\A\w+\z/, "09azAZ_")
end
def test_posix_bracket
check(/\A[[:alpha:]0]\z/, %w(0 a), %w(1 .))
check('\A[[:abcdefghijklmnopqrstu:]]+\z', "[]")
failcheck('[[:alpha')
failcheck('[[:alpha:')
failcheck('[[:alp:]]')
end
def test_backward
assert_equal(3, "foobar".rindex(/b.r/i))
assert_equal(nil, "foovar".rindex(/b.r/i))
assert_equal(3, ("foo" + "bar" * 1000).rindex(/#{"bar"*1000}/))
assert_equal(4, ("foo\nbar\nbaz\n").rindex(/bar/i))
end
def test_uninitialized
assert_raise(TypeError) { Regexp.allocate.hash }
assert_raise(TypeError) { Regexp.allocate.eql? Regexp.allocate }
assert_raise(TypeError) { Regexp.allocate == Regexp.allocate }
assert_raise(TypeError) { Regexp.allocate =~ "" }
assert_equal(false, Regexp.allocate === Regexp.allocate)
assert_nil(~Regexp.allocate)
assert_raise(TypeError) { Regexp.allocate.match("") }
assert_raise(TypeError) { Regexp.allocate.to_s }
assert_raise(TypeError) { Regexp.allocate.inspect }
assert_raise(TypeError) { Regexp.allocate.source }
assert_raise(TypeError) { Regexp.allocate.casefold? }
assert_raise(TypeError) { Regexp.allocate.options }
assert_raise(TypeError) { MatchData.allocate.size }
assert_raise(TypeError) { MatchData.allocate.length }
assert_raise(TypeError) { MatchData.allocate.offset(0) }
assert_raise(TypeError) { MatchData.allocate.begin(0) }
assert_raise(TypeError) { MatchData.allocate.end(0) }
assert_raise(TypeError) { MatchData.allocate.to_a }
assert_raise(TypeError) { MatchData.allocate[:foo] }
assert_raise(TypeError) { MatchData.allocate.values_at }
assert_raise(TypeError) { MatchData.allocate.pre_match }
assert_raise(TypeError) { MatchData.allocate.post_match }
assert_raise(TypeError) { MatchData.allocate.to_s }
assert_raise(TypeError) { MatchData.allocate.string }
$~ = MatchData.allocate
assert_raise(TypeError) { $& }
assert_raise(TypeError) { $` }
assert_raise(TypeError) { $' }
assert_raise(TypeError) { $+ }
end
def test_regexp_poped
assert_nothing_raised { eval("a = 1; /\#{ a }/; a") }
assert_nothing_raised { eval("a = 1; /\#{ a }/o; a") }
end
def test_optimize_last_anycharstar
s = "1" + " " * 5000000
assert_nothing_raised { s.match(/(\d) (.*)/) }
assert_equal("1", $1)
assert_equal(" " * 4999999, $2)
end
def test_range_greedy
/wo{0,3}?/ =~ "woo"
assert_equal("w", $&)
end
end