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ruby--ruby/test/ruby/test_string.rb
nobu 559154310f test_string.rb: enable huge test only on possible platforms 
* test/ruby/test_string.rb (test_LSHIFT_neary_long_max): enable
  only on platforms where string size range is smaller than memory
  space.  this test does not make sense but just wastes memory and
  time on other platforms, as it is hardly possible that a string
  size becomes neary LONG_MAX if long size equals pointer size.
  [ruby-core:65410] [Bug #10325]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47817 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2014-10-06 07:06:49 +00:00

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require 'test/unit'
require_relative 'envutil'
# use of $= is deprecated after 1.7.1
def pre_1_7_1
end
class TestString < Test::Unit::TestCase
ENUMERATOR_WANTARRAY = RUBY_VERSION >= "3.0.0"
def initialize(*args)
@cls = String
@aref_re_nth = true
@aref_re_silent = false
@aref_slicebang_silent = true
super
end
def S(str)
@cls.new(str)
end
def test_s_new
assert_equal("RUBY", S("RUBY"))
end
def test_AREF # '[]'
assert_equal("A", S("AooBar")[0])
assert_equal("B", S("FooBaB")[-1])
assert_equal(nil, S("FooBar")[6])
assert_equal(nil, S("FooBar")[-7])
assert_equal(S("Foo"), S("FooBar")[0,3])
assert_equal(S("Bar"), S("FooBar")[-3,3])
assert_equal(S(""), S("FooBar")[6,2])
assert_equal(nil, S("FooBar")[-7,10])
assert_equal(S("Foo"), S("FooBar")[0..2])
assert_equal(S("Foo"), S("FooBar")[0...3])
assert_equal(S("Bar"), S("FooBar")[-3..-1])
assert_equal(S(""), S("FooBar")[6..2])
assert_equal(nil, S("FooBar")[-10..-7])
assert_equal(S("Foo"), S("FooBar")[/^F../])
assert_equal(S("Bar"), S("FooBar")[/..r$/])
assert_equal(nil, S("FooBar")[/xyzzy/])
assert_equal(nil, S("FooBar")[/plugh/])
assert_equal(S("Foo"), S("FooBar")[S("Foo")])
assert_equal(S("Bar"), S("FooBar")[S("Bar")])
assert_equal(nil, S("FooBar")[S("xyzzy")])
assert_equal(nil, S("FooBar")[S("plugh")])
if @aref_re_nth
assert_equal(S("Foo"), S("FooBar")[/([A-Z]..)([A-Z]..)/, 1])
assert_equal(S("Bar"), S("FooBar")[/([A-Z]..)([A-Z]..)/, 2])
assert_equal(nil, S("FooBar")[/([A-Z]..)([A-Z]..)/, 3])
assert_equal(S("Bar"), S("FooBar")[/([A-Z]..)([A-Z]..)/, -1])
assert_equal(S("Foo"), S("FooBar")[/([A-Z]..)([A-Z]..)/, -2])
assert_equal(nil, S("FooBar")[/([A-Z]..)([A-Z]..)/, -3])
end
o = Object.new
def o.to_int; 2; end
assert_equal("o", "foo"[o])
assert_raise(ArgumentError) { "foo"[] }
end
def test_ASET # '[]='
s = S("FooBar")
s[0] = S('A')
assert_equal(S("AooBar"), s)
s[-1]= S('B')
assert_equal(S("AooBaB"), s)
assert_raise(IndexError) { s[-7] = S("xyz") }
assert_equal(S("AooBaB"), s)
s[0] = S("ABC")
assert_equal(S("ABCooBaB"), s)
s = S("FooBar")
s[0,3] = S("A")
assert_equal(S("ABar"),s)
s[0] = S("Foo")
assert_equal(S("FooBar"), s)
s[-3,3] = S("Foo")
assert_equal(S("FooFoo"), s)
assert_raise(IndexError) { s[7,3] = S("Bar") }
assert_raise(IndexError) { s[-7,3] = S("Bar") }
s = S("FooBar")
s[0..2] = S("A")
assert_equal(S("ABar"), s)
s[1..3] = S("Foo")
assert_equal(S("AFoo"), s)
s[-4..-4] = S("Foo")
assert_equal(S("FooFoo"), s)
assert_raise(RangeError) { s[7..10] = S("Bar") }
assert_raise(RangeError) { s[-7..-10] = S("Bar") }
s = S("FooBar")
s[/^F../]= S("Bar")
assert_equal(S("BarBar"), s)
s[/..r$/] = S("Foo")
assert_equal(S("BarFoo"), s)
if @aref_re_silent
s[/xyzzy/] = S("None")
assert_equal(S("BarFoo"), s)
else
assert_raise(IndexError) { s[/xyzzy/] = S("None") }
end
if @aref_re_nth
s[/([A-Z]..)([A-Z]..)/, 1] = S("Foo")
assert_equal(S("FooFoo"), s)
s[/([A-Z]..)([A-Z]..)/, 2] = S("Bar")
assert_equal(S("FooBar"), s)
assert_raise(IndexError) { s[/([A-Z]..)([A-Z]..)/, 3] = "None" }
s[/([A-Z]..)([A-Z]..)/, -1] = S("Foo")
assert_equal(S("FooFoo"), s)
s[/([A-Z]..)([A-Z]..)/, -2] = S("Bar")
assert_equal(S("BarFoo"), s)
assert_raise(IndexError) { s[/([A-Z]..)([A-Z]..)/, -3] = "None" }
end
s = S("FooBar")
s[S("Foo")] = S("Bar")
assert_equal(S("BarBar"), s)
pre_1_7_1 do
s = S("FooBar")
s[S("Foo")] = S("xyz")
assert_equal(S("xyzBar"), s)
$= = true
s = S("FooBar")
s[S("FOO")] = S("Bar")
assert_equal(S("BarBar"), s)
s[S("FOO")] = S("xyz")
assert_equal(S("BarBar"), s)
$= = false
end
s = S("a string")
s[0..s.size] = S("another string")
assert_equal(S("another string"), s)
o = Object.new
def o.to_int; 2; end
s = "foo"
s[o] = "bar"
assert_equal("fobar", s)
assert_raise(ArgumentError) { "foo"[1, 2, 3] = "" }
end
def test_CMP # '<=>'
assert_equal(1, S("abcdef") <=> S("abcde"))
assert_equal(0, S("abcdef") <=> S("abcdef"))
assert_equal(-1, S("abcde") <=> S("abcdef"))
assert_equal(-1, S("ABCDEF") <=> S("abcdef"))
pre_1_7_1 do
$= = true
assert_equal(0, S("ABCDEF") <=> S("abcdef"))
$= = false
end
assert_nil("foo" <=> Object.new)
o = Object.new
def o.to_str; "bar"; end
assert_equal(1, "foo" <=> o)
class << o;remove_method :to_str;end
def o.<=>(x); nil; end
assert_nil("foo" <=> o)
class << o;remove_method :<=>;end
def o.<=>(x); 1; end
assert_equal(-1, "foo" <=> o)
class << o;remove_method :<=>;end
def o.<=>(x); 2**100; end
assert_equal(-1, "foo" <=> o)
end
def test_EQUAL # '=='
assert_not_equal(:foo, S("foo"))
assert_equal(S("abcdef"), S("abcdef"))
pre_1_7_1 do
$= = true
assert_equal(S("CAT"), S('cat'))
assert_equal(S("CaT"), S('cAt'))
$= = false
end
assert_not_equal(S("CAT"), S('cat'))
assert_not_equal(S("CaT"), S('cAt'))
o = Object.new
def o.to_str; end
def o.==(x); false; end
assert_equal(false, "foo" == o)
class << o;remove_method :==;end
def o.==(x); true; end
assert_equal(true, "foo" == o)
end
def test_LSHIFT # '<<'
assert_equal(S("world!"), S("world") << 33)
assert_equal(S("world!"), S("world") << S("!"))
s = "a"
10.times {|i|
s << s
assert_equal("a" * (2 << i), s)
}
s = ["foo"].pack("p")
l = s.size
s << "bar"
assert_equal(l + 3, s.size)
bug = '[ruby-core:27583]'
assert_raise(RangeError, bug) {S("a".force_encoding(Encoding::UTF_8)) << -3}
assert_raise(RangeError, bug) {S("a".force_encoding(Encoding::UTF_8)) << -2}
assert_raise(RangeError, bug) {S("a".force_encoding(Encoding::UTF_8)) << -1}
assert_raise(RangeError, bug) {S("a".force_encoding(Encoding::UTF_8)) << 0x81308130}
assert_nothing_raised {S("a".force_encoding(Encoding::GB18030)) << 0x81308130}
end
def test_MATCH # '=~'
assert_equal(10, S("FeeFieFoo-Fum") =~ /Fum$/)
assert_equal(nil, S("FeeFieFoo-Fum") =~ /FUM$/)
pre_1_7_1 do
$= = true
assert_equal(10, S("FeeFieFoo-Fum") =~ /FUM$/)
$= = false
end
o = Object.new
def o.=~(x); x + "bar"; end
assert_equal("foobar", S("foo") =~ o)
assert_raise(TypeError) { S("foo") =~ "foo" }
end
def test_MOD # '%'
assert_equal(S("00123"), S("%05d") % 123)
assert_equal(S("123 |00000001"), S("%-5s|%08x") % [123, 1])
x = S("%3s %-4s%%foo %.0s%5d %#x%c%3.1f %b %x %X %#b %#x %#X") %
[S("hi"),
123,
S("never seen"),
456,
0,
?A,
3.0999,
11,
171,
171,
11,
171,
171]
assert_equal(S(' hi 123 %foo 456 0A3.1 1011 ab AB 0b1011 0xab 0XAB'), x)
end
def test_MUL # '*'
assert_equal(S("XXX"), S("X") * 3)
assert_equal(S("HOHO"), S("HO") * 2)
end
def test_PLUS # '+'
assert_equal(S("Yodel"), S("Yo") + S("del"))
end
def casetest(a, b, rev=false)
msg = proc {"#{a} should#{' not' if rev} match #{b}"}
case a
when b
assert(!rev, msg)
else
assert(rev, msg)
end
end
def test_VERY_EQUAL # '==='
# assert_equal(true, S("foo") === :foo)
casetest(S("abcdef"), S("abcdef"))
pre_1_7_1 do
$= = true
casetest(S("CAT"), S('cat'))
casetest(S("CaT"), S('cAt'))
$= = false
end
casetest(S("CAT"), S('cat'), true) # Reverse the test - we don't want to
casetest(S("CaT"), S('cAt'), true) # find these in the case.
end
def test_capitalize
assert_equal(S("Hello"), S("hello").capitalize)
assert_equal(S("Hello"), S("hELLO").capitalize)
assert_equal(S("123abc"), S("123ABC").capitalize)
end
def test_capitalize!
a = S("hello"); a.capitalize!
assert_equal(S("Hello"), a)
a = S("hELLO"); a.capitalize!
assert_equal(S("Hello"), a)
a = S("123ABC"); a.capitalize!
assert_equal(S("123abc"), a)
assert_equal(nil, S("123abc").capitalize!)
assert_equal(S("123abc"), S("123ABC").capitalize!)
assert_equal(S("Abc"), S("ABC").capitalize!)
assert_equal(S("Abc"), S("abc").capitalize!)
assert_equal(nil, S("Abc").capitalize!)
a = S("hello")
b = a.dup
assert_equal(S("Hello"), a.capitalize!)
assert_equal(S("hello"), b)
end
Bug2463 = '[ruby-dev:39856]'
def test_center
assert_equal(S("hello"), S("hello").center(4))
assert_equal(S(" hello "), S("hello").center(11))
assert_equal(S("ababaababa"), S("").center(10, "ab"), Bug2463)
assert_equal(S("ababaababab"), S("").center(11, "ab"), Bug2463)
end
def test_chomp
assert_equal(S("hello"), S("hello").chomp("\n"))
assert_equal(S("hello"), S("hello\n").chomp("\n"))
save = $/
$/ = "\n"
assert_equal(S("hello"), S("hello").chomp)
assert_equal(S("hello"), S("hello\n").chomp)
$/ = "!"
assert_equal(S("hello"), S("hello").chomp)
assert_equal(S("hello"), S("hello!").chomp)
$/ = save
assert_equal(S("a").hash, S("a\u0101").chomp(S("\u0101")).hash, '[ruby-core:22414]')
end
def test_chomp!
a = S("hello")
a.chomp!(S("\n"))
assert_equal(S("hello"), a)
assert_equal(nil, a.chomp!(S("\n")))
a = S("hello\n")
a.chomp!(S("\n"))
assert_equal(S("hello"), a)
save = $/
$/ = "\n"
a = S("hello")
a.chomp!
assert_equal(S("hello"), a)
a = S("hello\n")
a.chomp!
assert_equal(S("hello"), a)
$/ = "!"
a = S("hello")
a.chomp!
assert_equal(S("hello"), a)
a="hello!"
a.chomp!
assert_equal(S("hello"), a)
$/ = save
a = S("hello\n")
b = a.dup
assert_equal(S("hello"), a.chomp!)
assert_equal(S("hello\n"), b)
s = "foo\r\n"
s.chomp!
assert_equal("foo", s)
s = "foo\r"
s.chomp!
assert_equal("foo", s)
s = "foo\r\n"
s.chomp!("")
assert_equal("foo", s)
s = "foo\r"
s.chomp!("")
assert_equal("foo\r", s)
assert_equal(S("a").hash, S("a\u0101").chomp!(S("\u0101")).hash, '[ruby-core:22414]')
end
def test_chop
assert_equal(S("hell"), S("hello").chop)
assert_equal(S("hello"), S("hello\r\n").chop)
assert_equal(S("hello\n"), S("hello\n\r").chop)
assert_equal(S(""), S("\r\n").chop)
assert_equal(S(""), S("").chop)
assert_equal(S("a").hash, S("a\u00d8").chop.hash)
end
def test_chop!
a = S("hello").chop!
assert_equal(S("hell"), a)
a = S("hello\r\n").chop!
assert_equal(S("hello"), a)
a = S("hello\n\r").chop!
assert_equal(S("hello\n"), a)
a = S("\r\n").chop!
assert_equal(S(""), a)
a = S("").chop!
assert_nil(a)
a = S("a\u00d8")
a.chop!
assert_equal(S("a").hash, a.hash)
a = S("hello\n")
b = a.dup
assert_equal(S("hello"), a.chop!)
assert_equal(S("hello\n"), b)
end
def test_clone
for taint in [ false, true ]
for frozen in [ false, true ]
a = S("Cool")
a.taint if taint
a.freeze if frozen
b = a.clone
assert_equal(a, b)
assert_not_same(a, b)
assert_equal(a.frozen?, b.frozen?)
assert_equal(a.tainted?, b.tainted?)
end
end
null = File.exist?("/dev/null") ? "/dev/null" : "NUL" # maybe DOSISH
assert_equal("", File.read(null).clone, '[ruby-dev:32819] reported by Kazuhiro NISHIYAMA')
end
def test_concat
assert_equal(S("world!"), S("world").concat(33))
assert_equal(S("world!"), S("world").concat(S('!')))
bug7090 = '[ruby-core:47751]'
result = S("").force_encoding(Encoding::UTF_16LE)
result << 0x0300
expected = S("\u0300".encode(Encoding::UTF_16LE))
assert_equal(expected, result, bug7090)
assert_raise(TypeError) { 'foo' << :foo }
end
def test_count
a = S("hello world")
assert_equal(5, a.count(S("lo")))
assert_equal(2, a.count(S("lo"), S("o")))
assert_equal(4, a.count(S("hello"), S("^l")))
assert_equal(4, a.count(S("ej-m")))
assert_equal(0, S("y").count(S("a\\-z")))
assert_equal(5, "abc\u{3042 3044 3046}".count("^a"))
assert_equal(1, "abc\u{3042 3044 3046}".count("\u3042"))
assert_equal(5, "abc\u{3042 3044 3046}".count("^\u3042"))
assert_equal(2, "abc\u{3042 3044 3046}".count("a-z", "^a"))
assert_equal(0, "abc\u{3042 3044 3046}".count("a", "\u3042"))
assert_equal(0, "abc\u{3042 3044 3046}".count("\u3042", "a"))
assert_equal(0, "abc\u{3042 3044 3046}".count("\u3042", "\u3044"))
assert_equal(4, "abc\u{3042 3044 3046}".count("^a", "^\u3044"))
assert_equal(4, "abc\u{3042 3044 3046}".count("^\u3044", "^a"))
assert_equal(4, "abc\u{3042 3044 3046}".count("^\u3042", "^\u3044"))
assert_raise(ArgumentError) { "foo".count }
end
def test_crypt
assert_equal(S('aaGUC/JkO9/Sc'), S("mypassword").crypt(S("aa")))
assert_not_equal(S('aaGUC/JkO9/Sc'), S("mypassword").crypt(S("ab")))
end
def test_delete
assert_equal(S("heo"), S("hello").delete(S("l"), S("lo")))
assert_equal(S("he"), S("hello").delete(S("lo")))
assert_equal(S("hell"), S("hello").delete(S("aeiou"), S("^e")))
assert_equal(S("ho"), S("hello").delete(S("ej-m")))
assert_equal("a".hash, "a\u0101".delete("\u0101").hash, '[ruby-talk:329267]')
assert_equal(true, "a\u0101".delete("\u0101").ascii_only?)
assert_equal(true, "a\u3041".delete("\u3041").ascii_only?)
assert_equal(false, "a\u3041\u3042".tr("\u3041", "a").ascii_only?)
assert_equal("a", "abc\u{3042 3044 3046}".delete("^a"))
assert_equal("bc\u{3042 3044 3046}", "abc\u{3042 3044 3046}".delete("a"))
assert_equal("\u3042", "abc\u{3042 3044 3046}".delete("^\u3042"))
bug6160 = '[ruby-dev:45374]'
assert_equal("", '\\'.delete('\\'), bug6160)
end
def test_delete!
a = S("hello")
a.delete!(S("l"), S("lo"))
assert_equal(S("heo"), a)
a = S("hello")
a.delete!(S("lo"))
assert_equal(S("he"), a)
a = S("hello")
a.delete!(S("aeiou"), S("^e"))
assert_equal(S("hell"), a)
a = S("hello")
a.delete!(S("ej-m"))
assert_equal(S("ho"), a)
a = S("hello")
assert_nil(a.delete!(S("z")))
a = S("hello")
b = a.dup
a.delete!(S("lo"))
assert_equal(S("he"), a)
assert_equal(S("hello"), b)
a = S("hello")
a.delete!(S("^el"))
assert_equal(S("ell"), a)
assert_raise(ArgumentError) { S("foo").delete! }
end
def test_downcase
assert_equal(S("hello"), S("helLO").downcase)
assert_equal(S("hello"), S("hello").downcase)
assert_equal(S("hello"), S("HELLO").downcase)
assert_equal(S("abc hello 123"), S("abc HELLO 123").downcase)
end
def test_downcase!
a = S("helLO")
b = a.dup
assert_equal(S("hello"), a.downcase!)
assert_equal(S("hello"), a)
assert_equal(S("helLO"), b)
a=S("hello")
assert_nil(a.downcase!)
assert_equal(S("hello"), a)
end
def test_dump
a= S("Test") << 1 << 2 << 3 << 9 << 13 << 10
assert_equal(S('"Test\\x01\\x02\\x03\\t\\r\\n"'), a.dump)
end
def test_dup
for taint in [ false, true ]
for frozen in [ false, true ]
a = S("hello")
a.taint if taint
a.freeze if frozen
b = a.dup
assert_equal(a, b)
assert_not_same(a, b)
assert_not_predicate(b, :frozen?)
assert_equal(a.tainted?, b.tainted?)
end
end
end
def test_each
save = $/
$/ = "\n"
res=[]
S("hello\nworld").lines.each {|x| res << x}
assert_equal(S("hello\n"), res[0])
assert_equal(S("world"), res[1])
res=[]
S("hello\n\n\nworld").lines(S('')).each {|x| res << x}
assert_equal(S("hello\n\n\n"), res[0])
assert_equal(S("world"), res[1])
$/ = "!"
res=[]
S("hello!world").lines.each {|x| res << x}
assert_equal(S("hello!"), res[0])
assert_equal(S("world"), res[1])
$/ = save
end
def test_each_byte
s = S("ABC")
res = []
assert_equal s.object_id, s.each_byte {|x| res << x }.object_id
assert_equal(65, res[0])
assert_equal(66, res[1])
assert_equal(67, res[2])
assert_equal 65, s.each_byte.next
end
def test_bytes
s = S("ABC")
assert_equal [65, 66, 67], s.bytes
if ENUMERATOR_WANTARRAY
assert_warn(/block not used/) {
assert_equal [65, 66, 67], s.bytes {}
}
else
assert_warning(/deprecated/) {
res = []
assert_equal s.object_id, s.bytes {|x| res << x }.object_id
assert_equal(65, res[0])
assert_equal(66, res[1])
assert_equal(67, res[2])
}
end
end
def test_each_codepoint
# Single byte optimization
assert_equal 65, S("ABC").each_codepoint.next
s = S("\u3042\u3044\u3046")
res = []
assert_equal s.object_id, s.each_codepoint {|x| res << x }.object_id
assert_equal(0x3042, res[0])
assert_equal(0x3044, res[1])
assert_equal(0x3046, res[2])
assert_equal 0x3042, s.each_codepoint.next
end
def test_codepoints
# Single byte optimization
assert_equal [65, 66, 67], S("ABC").codepoints
s = S("\u3042\u3044\u3046")
assert_equal [0x3042, 0x3044, 0x3046], s.codepoints
if ENUMERATOR_WANTARRAY
assert_warn(/block not used/) {
assert_equal [0x3042, 0x3044, 0x3046], s.codepoints {}
}
else
assert_warning(/deprecated/) {
res = []
assert_equal s.object_id, s.codepoints {|x| res << x }.object_id
assert_equal(0x3042, res[0])
assert_equal(0x3044, res[1])
assert_equal(0x3046, res[2])
}
end
end
def test_each_char
s = S("ABC")
res = []
assert_equal s.object_id, s.each_char {|x| res << x }.object_id
assert_equal("A", res[0])
assert_equal("B", res[1])
assert_equal("C", res[2])
assert_equal "A", S("ABC").each_char.next
end
def test_chars
s = S("ABC")
assert_equal ["A", "B", "C"], s.chars
if ENUMERATOR_WANTARRAY
assert_warn(/block not used/) {
assert_equal ["A", "B", "C"], s.chars {}
}
else
assert_warning(/deprecated/) {
res = []
assert_equal s.object_id, s.chars {|x| res << x }.object_id
assert_equal("A", res[0])
assert_equal("B", res[1])
assert_equal("C", res[2])
}
end
end
def test_each_line
save = $/
$/ = "\n"
res=[]
S("hello\nworld").each_line {|x| res << x}
assert_equal(S("hello\n"), res[0])
assert_equal(S("world"), res[1])
res=[]
S("hello\n\n\nworld").each_line(S('')) {|x| res << x}
assert_equal(S("hello\n\n\n"), res[0])
assert_equal(S("world"), res[1])
$/ = "!"
res=[]
S("hello!world").each_line {|x| res << x}
assert_equal(S("hello!"), res[0])
assert_equal(S("world"), res[1])
$/ = "ab"
res=[]
S("a").lines.each {|x| res << x}
assert_equal(1, res.size)
assert_equal(S("a"), res[0])
$/ = save
s = nil
"foo\nbar".each_line(nil) {|s2| s = s2 }
assert_equal("foo\nbar", s)
assert_equal "hello\n", S("hello\nworld").each_line.next
assert_equal "hello\nworld", S("hello\nworld").each_line(nil).next
bug7646 = "[ruby-dev:46827]"
assert_nothing_raised(bug7646) do
"\n\u0100".each_line("\n") {}
end
end
def test_lines
s = S("hello\nworld")
assert_equal ["hello\n", "world"], s.lines
assert_equal ["hello\nworld"], s.lines(nil)
if ENUMERATOR_WANTARRAY
assert_warn(/block not used/) {
assert_equal ["hello\n", "world"], s.lines {}
}
else
assert_warning(/deprecated/) {
res = []
assert_equal s.object_id, s.lines {|x| res << x }.object_id
assert_equal(S("hello\n"), res[0])
assert_equal(S("world"), res[1])
}
end
end
def test_empty?
assert_empty(S(""))
assert_not_empty(S("not"))
end
def test_end_with?
assert_send([S("hello"), :end_with?, S("llo")])
assert_not_send([S("hello"), :end_with?, S("ll")])
assert_send([S("hello"), :end_with?, S("el"), S("lo")])
bug5536 = '[ruby-core:40623]'
assert_raise(TypeError, bug5536) {S("str").end_with? :not_convertible_to_string}
end
def test_eql?
a = S("hello")
assert_operator(a, :eql?, S("hello"))
assert_operator(a, :eql?, a)
end
def test_gsub
assert_equal(S("h*ll*"), S("hello").gsub(/[aeiou]/, S('*')))
assert_equal(S("h<e>ll<o>"), S("hello").gsub(/([aeiou])/, S('<\1>')))
assert_equal(S("h e l l o "),
S("hello").gsub(/./) { |s| s[0].to_s + S(' ')})
assert_equal(S("HELL-o"),
S("hello").gsub(/(hell)(.)/) { |s| $1.upcase + S('-') + $2 })
assert_equal(S("<>h<>e<>l<>l<>o<>"), S("hello").gsub(S(''), S('<\0>')))
a = S("hello")
a.taint
assert_predicate(a.gsub(/./, S('X')), :tainted?)
assert_equal("z", "abc".gsub(/./, "a" => "z"), "moved from btest/knownbug")
assert_raise(ArgumentError) { "foo".gsub }
end
def test_gsub_encoding
a = S("hello world")
a.force_encoding Encoding::UTF_8
b = S("hi")
b.force_encoding Encoding::US_ASCII
assert_equal Encoding::UTF_8, a.gsub(/hello/, b).encoding
c = S("everybody")
c.force_encoding Encoding::US_ASCII
assert_equal Encoding::UTF_8, a.gsub(/world/, c).encoding
assert_equal S("a\u{e9}apos&lt;"), S("a\u{e9}'&lt;").gsub("'", "apos")
bug9849 = '[ruby-core:62669] [Bug #9849]'
assert_equal S("\u{3042 3042 3042}!foo!"), S("\u{3042 3042 3042}/foo/").gsub("/", "!"), bug9849
end
def test_gsub!
a = S("hello")
b = a.dup
a.gsub!(/[aeiou]/, S('*'))
assert_equal(S("h*ll*"), a)
assert_equal(S("hello"), b)
a = S("hello")
a.gsub!(/([aeiou])/, S('<\1>'))
assert_equal(S("h<e>ll<o>"), a)
a = S("hello")
a.gsub!(/./) { |s| s[0].to_s + S(' ')}
assert_equal(S("h e l l o "), a)
a = S("hello")
a.gsub!(/(hell)(.)/) { |s| $1.upcase + S('-') + $2 }
assert_equal(S("HELL-o"), a)
r = S('X')
r.taint
a.gsub!(/./, r)
assert_predicate(a, :tainted?)
a = S("hello")
assert_nil(a.sub!(S('X'), S('Y')))
end
def test_sub_hash
assert_equal('azc', 'abc'.sub(/b/, "b" => "z"))
assert_equal('ac', 'abc'.sub(/b/, {}))
assert_equal('a1c', 'abc'.sub(/b/, "b" => 1))
assert_equal('aBc', 'abc'.sub(/b/, Hash.new {|h, k| k.upcase }))
assert_equal('a[\&]c', 'abc'.sub(/b/, "b" => '[\&]'))
assert_equal('aBcabc', 'abcabc'.sub(/b/, Hash.new {|h, k| h[k] = k.upcase }))
assert_equal('aBcdef', 'abcdef'.sub(/de|b/, "b" => "B", "de" => "DE"))
end
def test_gsub_hash
assert_equal('azc', 'abc'.gsub(/b/, "b" => "z"))
assert_equal('ac', 'abc'.gsub(/b/, {}))
assert_equal('a1c', 'abc'.gsub(/b/, "b" => 1))
assert_equal('aBc', 'abc'.gsub(/b/, Hash.new {|h, k| k.upcase }))
assert_equal('a[\&]c', 'abc'.gsub(/b/, "b" => '[\&]'))
assert_equal('aBcaBc', 'abcabc'.gsub(/b/, Hash.new {|h, k| h[k] = k.upcase }))
assert_equal('aBcDEf', 'abcdef'.gsub(/de|b/, "b" => "B", "de" => "DE"))
end
def test_hash
assert_equal(S("hello").hash, S("hello").hash)
assert_not_equal(S("hello").hash, S("helLO").hash)
bug4104 = '[ruby-core:33500]'
assert_not_equal(S("a").hash, S("a\0").hash, bug4104)
bug9172 = '[ruby-core:58658] [Bug #9172]'
assert_not_equal(S("sub-setter").hash, S("discover").hash, bug9172)
end
def test_hash_random
str = 'abc'
a = [str.hash.to_s]
3.times {
assert_in_out_err(["-e", "print #{str.dump}.hash"], "") do |r, e|
a += r
assert_equal([], e)
end
}
assert_not_equal([str.hash.to_s], a.uniq)
end
def test_hex
assert_equal(255, S("0xff").hex)
assert_equal(-255, S("-0xff").hex)
assert_equal(255, S("ff").hex)
assert_equal(-255, S("-ff").hex)
assert_equal(0, S("-ralph").hex)
assert_equal(-15, S("-fred").hex)
assert_equal(15, S("fred").hex)
end
def test_include?
assert_include(S("foobar"), ?f)
assert_include(S("foobar"), S("foo"))
assert_not_include(S("foobar"), S("baz"))
assert_not_include(S("foobar"), ?z)
end
def test_index
assert_equal(0, S("hello").index(?h))
assert_equal(1, S("hello").index(S("ell")))
assert_equal(2, S("hello").index(/ll./))
assert_equal(3, S("hello").index(?l, 3))
assert_equal(3, S("hello").index(S("l"), 3))
assert_equal(3, S("hello").index(/l./, 3))
assert_nil(S("hello").index(?z, 3))
assert_nil(S("hello").index(S("z"), 3))
assert_nil(S("hello").index(/z./, 3))
assert_nil(S("hello").index(?z))
assert_nil(S("hello").index(S("z")))
assert_nil(S("hello").index(/z./))
assert_equal(0, S("").index(S("")))
assert_equal(0, S("").index(//))
assert_nil(S("").index(S("hello")))
assert_nil(S("").index(/hello/))
assert_equal(0, S("hello").index(S("")))
assert_equal(0, S("hello").index(//))
s = S("long") * 1000 << "x"
assert_nil(s.index(S("y")))
assert_equal(4 * 1000, s.index(S("x")))
s << "yx"
assert_equal(4 * 1000, s.index(S("x")))
assert_equal(4 * 1000, s.index(S("xyx")))
o = Object.new
def o.to_str; "bar"; end
assert_equal(3, "foobarbarbaz".index(o))
assert_raise(TypeError) { "foo".index(Object.new) }
assert_nil("foo".index(//, -100))
assert_nil($~)
end
def test_intern
assert_equal(:koala, S("koala").intern)
assert_not_equal(:koala, S("Koala").intern)
end
def test_length
assert_equal(0, S("").length)
assert_equal(4, S("1234").length)
assert_equal(6, S("1234\r\n").length)
assert_equal(7, S("\0011234\r\n").length)
end
def test_ljust
assert_equal(S("hello"), S("hello").ljust(4))
assert_equal(S("hello "), S("hello").ljust(11))
assert_equal(S("ababababab"), S("").ljust(10, "ab"), Bug2463)
assert_equal(S("abababababa"), S("").ljust(11, "ab"), Bug2463)
end
def test_next
assert_equal(S("abd"), S("abc").next)
assert_equal(S("z"), S("y").next)
assert_equal(S("aaa"), S("zz").next)
assert_equal(S("124"), S("123").next)
assert_equal(S("1000"), S("999").next)
assert_equal(S("2000aaa"), S("1999zzz").next)
assert_equal(S("AAAAA000"), S("ZZZZ999").next)
assert_equal(S("*+"), S("**").next)
end
def test_next!
a = S("abc")
b = a.dup
assert_equal(S("abd"), a.next!)
assert_equal(S("abd"), a)
assert_equal(S("abc"), b)
a = S("y")
assert_equal(S("z"), a.next!)
assert_equal(S("z"), a)
a = S("zz")
assert_equal(S("aaa"), a.next!)
assert_equal(S("aaa"), a)
a = S("123")
assert_equal(S("124"), a.next!)
assert_equal(S("124"), a)
a = S("999")
assert_equal(S("1000"), a.next!)
assert_equal(S("1000"), a)
a = S("1999zzz")
assert_equal(S("2000aaa"), a.next!)
assert_equal(S("2000aaa"), a)
a = S("ZZZZ999")
assert_equal(S("AAAAA000"), a.next!)
assert_equal(S("AAAAA000"), a)
a = S("**")
assert_equal(S("*+"), a.next!)
assert_equal(S("*+"), a)
end
def test_oct
assert_equal(255, S("0377").oct)
assert_equal(255, S("377").oct)
assert_equal(-255, S("-0377").oct)
assert_equal(-255, S("-377").oct)
assert_equal(0, S("OO").oct)
assert_equal(24, S("030OO").oct)
end
def test_replace
a = S("foo")
assert_equal(S("f"), a.replace(S("f")))
a = S("foo")
assert_equal(S("foobar"), a.replace(S("foobar")))
a = S("foo")
a.taint
b = a.replace(S("xyz"))
assert_equal(S("xyz"), b)
assert_predicate(b, :tainted?)
s = "foo" * 100
s2 = ("bar" * 100).dup
s.replace(s2)
assert_equal(s2, s)
s2 = ["foo"].pack("p")
s.replace(s2)
assert_equal(s2, s)
fs = "".freeze
assert_raise(RuntimeError) { fs.replace("a") }
assert_raise(RuntimeError) { fs.replace(fs) }
assert_raise(ArgumentError) { fs.replace() }
assert_raise(RuntimeError) { fs.replace(42) }
end
def test_reverse
assert_equal(S("beta"), S("ateb").reverse)
assert_equal(S("madamImadam"), S("madamImadam").reverse)
a=S("beta")
assert_equal(S("ateb"), a.reverse)
assert_equal(S("beta"), a)
end
def test_reverse!
a = S("beta")
b = a.dup
assert_equal(S("ateb"), a.reverse!)
assert_equal(S("ateb"), a)
assert_equal(S("beta"), b)
assert_equal(S("madamImadam"), S("madamImadam").reverse!)
a = S("madamImadam")
assert_equal(S("madamImadam"), a.reverse!) # ??
assert_equal(S("madamImadam"), a)
end
def test_rindex
assert_equal(3, S("hello").rindex(?l))
assert_equal(6, S("ell, hello").rindex(S("ell")))
assert_equal(7, S("ell, hello").rindex(/ll./))
assert_equal(3, S("hello,lo").rindex(?l, 3))
assert_equal(3, S("hello,lo").rindex(S("l"), 3))
assert_equal(3, S("hello,lo").rindex(/l./, 3))
assert_nil(S("hello").rindex(?z, 3))
assert_nil(S("hello").rindex(S("z"), 3))
assert_nil(S("hello").rindex(/z./, 3))
assert_nil(S("hello").rindex(?z))
assert_nil(S("hello").rindex(S("z")))
assert_nil(S("hello").rindex(/z./))
o = Object.new
def o.to_str; "bar"; end
assert_equal(6, "foobarbarbaz".rindex(o))
assert_raise(TypeError) { "foo".rindex(Object.new) }
assert_nil("foo".rindex(//, -100))
assert_nil($~)
end
def test_rjust
assert_equal(S("hello"), S("hello").rjust(4))
assert_equal(S(" hello"), S("hello").rjust(11))
assert_equal(S("ababababab"), S("").rjust(10, "ab"), Bug2463)
assert_equal(S("abababababa"), S("").rjust(11, "ab"), Bug2463)
end
def test_scan
a = S("cruel world")
assert_equal([S("cruel"), S("world")],a.scan(/\w+/))
assert_equal([S("cru"), S("el "), S("wor")],a.scan(/.../))
assert_equal([[S("cru")], [S("el ")], [S("wor")]],a.scan(/(...)/))
res = []
a.scan(/\w+/) { |w| res << w }
assert_equal([S("cruel"), S("world") ],res)
res = []
a.scan(/.../) { |w| res << w }
assert_equal([S("cru"), S("el "), S("wor")],res)
res = []
a.scan(/(...)/) { |w| res << w }
assert_equal([[S("cru")], [S("el ")], [S("wor")]],res)
a = S("hello")
a.taint
res = []
a.scan(/./) { |w| res << w }
assert_predicate(res[0], :tainted?, '[ruby-core:33338] #4087')
/h/ =~ a
a.scan(/x/)
assert_nil($~)
/h/ =~ a
a.scan('x')
assert_nil($~)
assert_equal(3, S("hello hello hello").scan("hello".taint).count(&:tainted?))
end
def test_size
assert_equal(0, S("").size)
assert_equal(4, S("1234").size)
assert_equal(6, S("1234\r\n").size)
assert_equal(7, S("\0011234\r\n").size)
end
def test_slice
assert_equal(?A, S("AooBar").slice(0))
assert_equal(?B, S("FooBaB").slice(-1))
assert_nil(S("FooBar").slice(6))
assert_nil(S("FooBar").slice(-7))
assert_equal(S("Foo"), S("FooBar").slice(0,3))
assert_equal(S(S("Bar")), S("FooBar").slice(-3,3))
assert_nil(S("FooBar").slice(7,2)) # Maybe should be six?
assert_nil(S("FooBar").slice(-7,10))
assert_equal(S("Foo"), S("FooBar").slice(0..2))
assert_equal(S("Bar"), S("FooBar").slice(-3..-1))
assert_equal(S(""), S("FooBar").slice(6..2))
assert_nil(S("FooBar").slice(-10..-7))
assert_equal(S("Foo"), S("FooBar").slice(/^F../))
assert_equal(S("Bar"), S("FooBar").slice(/..r$/))
assert_nil(S("FooBar").slice(/xyzzy/))
assert_nil(S("FooBar").slice(/plugh/))
assert_equal(S("Foo"), S("FooBar").slice(S("Foo")))
assert_equal(S("Bar"), S("FooBar").slice(S("Bar")))
assert_nil(S("FooBar").slice(S("xyzzy")))
assert_nil(S("FooBar").slice(S("plugh")))
bug9882 = '[ruby-core:62842] [Bug #9882]'
substr = S("\u{30c6 30b9 30c8 2019}#{bug9882}").slice(4..-1)
assert_equal(S(bug9882).hash, substr.hash, bug9882)
assert_predicate(substr, :ascii_only?, bug9882)
end
def test_slice!
a = S("AooBar")
b = a.dup
assert_equal(?A, a.slice!(0))
assert_equal(S("ooBar"), a)
assert_equal(S("AooBar"), b)
a = S("FooBar")
assert_equal(?r,a.slice!(-1))
assert_equal(S("FooBa"), a)
a = S("FooBar")
if @aref_slicebang_silent
assert_nil( a.slice!(6) )
else
assert_raise(IndexError) { a.slice!(6) }
end
assert_equal(S("FooBar"), a)
if @aref_slicebang_silent
assert_nil( a.slice!(-7) )
else
assert_raise(IndexError) { a.slice!(-7) }
end
assert_equal(S("FooBar"), a)
a = S("FooBar")
assert_equal(S("Foo"), a.slice!(0,3))
assert_equal(S("Bar"), a)
a = S("FooBar")
assert_equal(S("Bar"), a.slice!(-3,3))
assert_equal(S("Foo"), a)
a=S("FooBar")
if @aref_slicebang_silent
assert_nil(a.slice!(7,2)) # Maybe should be six?
else
assert_raise(IndexError) {a.slice!(7,2)} # Maybe should be six?
end
assert_equal(S("FooBar"), a)
if @aref_slicebang_silent
assert_nil(a.slice!(-7,10))
else
assert_raise(IndexError) {a.slice!(-7,10)}
end
assert_equal(S("FooBar"), a)
a=S("FooBar")
assert_equal(S("Foo"), a.slice!(0..2))
assert_equal(S("Bar"), a)
a=S("FooBar")
assert_equal(S("Bar"), a.slice!(-3..-1))
assert_equal(S("Foo"), a)
a=S("FooBar")
if @aref_slicebang_silent
assert_equal(S(""), a.slice!(6..2))
else
assert_raise(RangeError) {a.slice!(6..2)}
end
assert_equal(S("FooBar"), a)
if @aref_slicebang_silent
assert_nil(a.slice!(-10..-7))
else
assert_raise(RangeError) {a.slice!(-10..-7)}
end
assert_equal(S("FooBar"), a)
a=S("FooBar")
assert_equal(S("Foo"), a.slice!(/^F../))
assert_equal(S("Bar"), a)
a=S("FooBar")
assert_equal(S("Bar"), a.slice!(/..r$/))
assert_equal(S("Foo"), a)
a=S("FooBar")
if @aref_slicebang_silent
assert_nil(a.slice!(/xyzzy/))
else
assert_raise(IndexError) {a.slice!(/xyzzy/)}
end
assert_equal(S("FooBar"), a)
if @aref_slicebang_silent
assert_nil(a.slice!(/plugh/))
else
assert_raise(IndexError) {a.slice!(/plugh/)}
end
assert_equal(S("FooBar"), a)
a=S("FooBar")
assert_equal(S("Foo"), a.slice!(S("Foo")))
assert_equal(S("Bar"), a)
a=S("FooBar")
assert_equal(S("Bar"), a.slice!(S("Bar")))
assert_equal(S("Foo"), a)
pre_1_7_1 do
a=S("FooBar")
assert_nil(a.slice!(S("xyzzy")))
assert_equal(S("FooBar"), a)
assert_nil(a.slice!(S("plugh")))
assert_equal(S("FooBar"), a)
end
assert_raise(ArgumentError) { "foo".slice! }
end
def test_split
assert_nil($;)
assert_equal([S("a"), S("b"), S("c")], S(" a b\t c ").split)
assert_equal([S("a"), S("b"), S("c")], S(" a b\t c ").split(S(" ")))
assert_equal([S(" a "), S(" b "), S(" c ")], S(" a | b | c ").split(S("|")))
assert_equal([S("a"), S("b"), S("c")], S("aXXbXXcXX").split(/X./))
assert_equal([S("a"), S("b"), S("c")], S("abc").split(//))
assert_equal([S("a|b|c")], S("a|b|c").split(S('|'), 1))
assert_equal([S("a"), S("b|c")], S("a|b|c").split(S('|'), 2))
assert_equal([S("a"), S("b"), S("c")], S("a|b|c").split(S('|'), 3))
assert_equal([S("a"), S("b"), S("c"), S("")], S("a|b|c|").split(S('|'), -1))
assert_equal([S("a"), S("b"), S("c"), S(""), S("")], S("a|b|c||").split(S('|'), -1))
assert_equal([S("a"), S(""), S("b"), S("c")], S("a||b|c|").split(S('|')))
assert_equal([S("a"), S(""), S("b"), S("c"), S("")], S("a||b|c|").split(S('|'), -1))
assert_equal([], "".split(//, 1))
assert_equal("[2, 3]", [1,2,3].slice!(1,10000).inspect, "moved from btest/knownbug")
bug6206 = '[ruby-dev:45441]'
Encoding.list.each do |enc|
next unless enc.ascii_compatible?
s = S("a:".force_encoding(enc))
assert_equal([enc]*2, s.split(":", 2).map(&:encoding), bug6206)
end
bug8642 = '[ruby-core:56036] [Bug #8642]'
[
Encoding::UTF_16BE, Encoding::UTF_16LE,
Encoding::UTF_32BE, Encoding::UTF_32LE,
].each do |enc|
s = S("abc,def".encode(enc))
assert_equal(["abc", "def"].map {|c| c.encode(enc)},
s.split(",".encode(enc)),
"#{bug8642} in #{enc.name}")
end
end
def test_squeeze
assert_equal(S("abc"), S("aaabbbbccc").squeeze)
assert_equal(S("aa bb cc"), S("aa bb cc").squeeze(S(" ")))
assert_equal(S("BxTyWz"), S("BxxxTyyyWzzzzz").squeeze(S("a-z")))
end
def test_squeeze!
a = S("aaabbbbccc")
b = a.dup
assert_equal(S("abc"), a.squeeze!)
assert_equal(S("abc"), a)
assert_equal(S("aaabbbbccc"), b)
a = S("aa bb cc")
assert_equal(S("aa bb cc"), a.squeeze!(S(" ")))
assert_equal(S("aa bb cc"), a)
a = S("BxxxTyyyWzzzzz")
assert_equal(S("BxTyWz"), a.squeeze!(S("a-z")))
assert_equal(S("BxTyWz"), a)
a=S("The quick brown fox")
assert_nil(a.squeeze!)
end
def test_start_with?
assert_send([S("hello"), :start_with?, S("hel")])
assert_not_send([S("hello"), :start_with?, S("el")])
assert_send([S("hello"), :start_with?, S("el"), S("he")])
bug5536 = '[ruby-core:40623]'
assert_raise(TypeError, bug5536) {S("str").start_with? :not_convertible_to_string}
end
def test_strip
assert_equal(S("x"), S(" x ").strip)
assert_equal(S("x"), S(" \n\r\t x \t\r\n\n ").strip)
assert_equal("0b0 ".force_encoding("UTF-16BE"),
"\x00 0b0 ".force_encoding("UTF-16BE").strip)
assert_equal("0\x000b0 ".force_encoding("UTF-16BE"),
"0\x000b0 ".force_encoding("UTF-16BE").strip)
end
def test_strip!
a = S(" x ")
b = a.dup
assert_equal(S("x") ,a.strip!)
assert_equal(S("x") ,a)
assert_equal(S(" x "), b)
a = S(" \n\r\t x \t\r\n\n ")
assert_equal(S("x"), a.strip!)
assert_equal(S("x"), a)
a = S("x")
assert_nil(a.strip!)
assert_equal(S("x") ,a)
end
def test_sub
assert_equal(S("h*llo"), S("hello").sub(/[aeiou]/, S('*')))
assert_equal(S("h<e>llo"), S("hello").sub(/([aeiou])/, S('<\1>')))
assert_equal(S("h ello"), S("hello").sub(/./) {
|s| s[0].to_s + S(' ')})
assert_equal(S("HELL-o"), S("hello").sub(/(hell)(.)/) {
|s| $1.upcase + S('-') + $2
})
assert_equal(S("h<e>llo"), S("hello").sub('e', S('<\0>')))
assert_equal(S("a\\aba"), S("ababa").sub(/b/, '\\'))
assert_equal(S("ab\\aba"), S("ababa").sub(/(b)/, '\1\\'))
assert_equal(S("ababa"), S("ababa").sub(/(b)/, '\1'))
assert_equal(S("ababa"), S("ababa").sub(/(b)/, '\\1'))
assert_equal(S("a\\1aba"), S("ababa").sub(/(b)/, '\\\1'))
assert_equal(S("a\\1aba"), S("ababa").sub(/(b)/, '\\\\1'))
assert_equal(S("a\\baba"), S("ababa").sub(/(b)/, '\\\\\1'))
assert_equal(S("a--ababababababababab"),
S("abababababababababab").sub(/(b)/, '-\9-'))
assert_equal(S("1-b-0"),
S("1b2b3b4b5b6b7b8b9b0").
sub(/(b).(b).(b).(b).(b).(b).(b).(b).(b)/, '-\9-'))
assert_equal(S("1-b-0"),
S("1b2b3b4b5b6b7b8b9b0").
sub(/(b).(b).(b).(b).(b).(b).(b).(b).(b)/, '-\\9-'))
assert_equal(S("1-\\9-0"),
S("1b2b3b4b5b6b7b8b9b0").
sub(/(b).(b).(b).(b).(b).(b).(b).(b).(b)/, '-\\\9-'))
assert_equal(S("k"),
S("1a2b3c4d5e6f7g8h9iAjBk").
sub(/.(.).(.).(.).(.).(.).(.).(.).(.).(.).(.).(.)/, '\+'))
assert_equal(S("ab\\aba"), S("ababa").sub(/b/, '\&\\'))
assert_equal(S("ababa"), S("ababa").sub(/b/, '\&'))
assert_equal(S("ababa"), S("ababa").sub(/b/, '\\&'))
assert_equal(S("a\\&aba"), S("ababa").sub(/b/, '\\\&'))
assert_equal(S("a\\&aba"), S("ababa").sub(/b/, '\\\\&'))
assert_equal(S("a\\baba"), S("ababa").sub(/b/, '\\\\\&'))
a = S("hello")
a.taint
x = a.sub(/./, S('X'))
assert_predicate(x, :tainted?)
o = Object.new
def o.to_str; "bar"; end
assert_equal("fooBARbaz", "foobarbaz".sub(o, "BAR"))
assert_raise(TypeError) { "foo".sub(Object.new, "") }
assert_raise(ArgumentError) { "foo".sub }
assert_raise(IndexError) { "foo"[/(?:(o$)|(x))/, 2] = 'bar' }
o = Object.new
def o.to_s; self; end
assert_match(/^foo#<Object:0x.*>baz$/, "foobarbaz".sub("bar") { o })
assert_equal(S("Abc"), S("abc").sub("a", "A"))
m = nil
assert_equal(S("Abc"), S("abc").sub("a") {m = $~; "A"})
assert_equal(S("a"), m[0])
assert_equal(/a/, m.regexp)
end
def test_sub!
a = S("hello")
b = a.dup
a.sub!(/[aeiou]/, S('*'))
assert_equal(S("h*llo"), a)
assert_equal(S("hello"), b)
a = S("hello")
a.sub!(/([aeiou])/, S('<\1>'))
assert_equal(S("h<e>llo"), a)
a = S("hello")
a.sub!(/./) { |s| s[0].to_s + S(' ')}
assert_equal(S("h ello"), a)
a = S("hello")
a.sub!(/(hell)(.)/) { |s| $1.upcase + S('-') + $2 }
assert_equal(S("HELL-o"), a)
a=S("hello")
assert_nil(a.sub!(/X/, S('Y')))
r = S('X')
r.taint
a.sub!(/./, r)
assert_predicate(a, :tainted?)
end
def test_succ
assert_equal(S("abd"), S("abc").succ)
assert_equal(S("z"), S("y").succ)
assert_equal(S("aaa"), S("zz").succ)
assert_equal(S("124"), S("123").succ)
assert_equal(S("1000"), S("999").succ)
assert_equal(S("2.000"), S("1.999").succ)
assert_equal(S("No.10"), S("No.9").succ)
assert_equal(S("2000aaa"), S("1999zzz").succ)
assert_equal(S("AAAAA000"), S("ZZZZ999").succ)
assert_equal(S("*+"), S("**").succ)
assert_equal("abce", "abcd".succ)
assert_equal("THX1139", "THX1138".succ)
assert_equal("<\<koalb>>", "<\<koala>>".succ)
assert_equal("2000aaa", "1999zzz".succ)
assert_equal("AAAA0000", "ZZZ9999".succ)
assert_equal("**+", "***".succ)
end
def test_succ!
a = S("abc")
b = a.dup
assert_equal(S("abd"), a.succ!)
assert_equal(S("abd"), a)
assert_equal(S("abc"), b)
a = S("y")
assert_equal(S("z"), a.succ!)
assert_equal(S("z"), a)
a = S("zz")
assert_equal(S("aaa"), a.succ!)
assert_equal(S("aaa"), a)
a = S("123")
assert_equal(S("124"), a.succ!)
assert_equal(S("124"), a)
a = S("999")
assert_equal(S("1000"), a.succ!)
assert_equal(S("1000"), a)
a = S("1999zzz")
assert_equal(S("2000aaa"), a.succ!)
assert_equal(S("2000aaa"), a)
a = S("ZZZZ999")
assert_equal(S("AAAAA000"), a.succ!)
assert_equal(S("AAAAA000"), a)
a = S("**")
assert_equal(S("*+"), a.succ!)
assert_equal(S("*+"), a)
a = S("No.9")
assert_equal(S("No.10"), a.succ!)
assert_equal(S("No.10"), a)
assert_equal("aaaaaaaaaaaa", "zzzzzzzzzzz".succ!)
assert_equal("aaaaaaaaaaaaaaaaaaaaaaaa", "zzzzzzzzzzzzzzzzzzzzzzz".succ!)
end
def test_sum
n = S("\001\001\001\001\001\001\001\001\001\001\001\001\001\001\001")
assert_equal(15, n.sum)
n += S("\001")
assert_equal(16, n.sum(17))
n[0] = 2.chr
assert_not_equal(15, n.sum)
end
def check_sum(str, bits=16)
sum = 0
str.each_byte {|c| sum += c}
sum = sum & ((1 << bits) - 1) if bits != 0
assert_equal(sum, str.sum(bits))
end
def test_sum_2
assert_equal(0, "".sum)
assert_equal(294, "abc".sum)
check_sum("abc")
check_sum("\x80")
0.upto(70) {|bits|
check_sum("xyz", bits)
}
end
def test_sum_long
s8421505 = "\xff" * 8421505
assert_equal(127, s8421505.sum(31))
assert_equal(2147483775, s8421505.sum(0))
s16843010 = ("\xff" * 16843010)
assert_equal(254, s16843010.sum(32))
assert_equal(4294967550, s16843010.sum(0))
end
def test_swapcase
assert_equal(S("hi&LOW"), S("HI&low").swapcase)
end
def test_swapcase!
a = S("hi&LOW")
b = a.dup
assert_equal(S("HI&low"), a.swapcase!)
assert_equal(S("HI&low"), a)
assert_equal(S("hi&LOW"), b)
a = S("$^#^%$#!!")
assert_nil(a.swapcase!)
assert_equal(S("$^#^%$#!!"), a)
end
def test_to_f
assert_equal(344.3, S("344.3").to_f)
assert_equal(5.9742e24, S("5.9742e24").to_f)
assert_equal(98.6, S("98.6 degrees").to_f)
assert_equal(0.0, S("degrees 100.0").to_f)
assert_equal([ 0.0].pack('G'), [S(" 0.0").to_f].pack('G'))
assert_equal([-0.0].pack('G'), [S("-0.0").to_f].pack('G'))
end
def test_to_i
assert_equal(1480, S("1480ft/sec").to_i)
assert_equal(0, S("speed of sound in water @20C = 1480ft/sec)").to_i)
assert_equal(0, " 0".to_i)
assert_equal(0, "+0".to_i)
assert_equal(0, "-0".to_i)
assert_equal(0, "--0".to_i)
assert_equal(16, "0x10".to_i(0))
assert_equal(16, "0X10".to_i(0))
assert_equal(2, "0b10".to_i(0))
assert_equal(2, "0B10".to_i(0))
assert_equal(8, "0o10".to_i(0))
assert_equal(8, "0O10".to_i(0))
assert_equal(10, "0d10".to_i(0))
assert_equal(10, "0D10".to_i(0))
assert_equal(8, "010".to_i(0))
assert_raise(ArgumentError) { "010".to_i(-10) }
2.upto(36) {|radix|
assert_equal(radix, "10".to_i(radix))
assert_equal(radix**2, "100".to_i(radix))
}
assert_raise(ArgumentError) { "0".to_i(1) }
assert_raise(ArgumentError) { "0".to_i(37) }
assert_equal(0, "z".to_i(10))
assert_equal(12, "1_2".to_i(10))
assert_equal(0x40000000, "1073741824".to_i(10))
assert_equal(0x4000000000000000, "4611686018427387904".to_i(10))
assert_equal(1, "1__2".to_i(10))
assert_equal(1, "1_z".to_i(10))
bug6192 = '[ruby-core:43566]'
assert_raise(Encoding::CompatibilityError, bug6192) {"0".encode("utf-16be").to_i}
assert_raise(Encoding::CompatibilityError, bug6192) {"0".encode("utf-16le").to_i}
assert_raise(Encoding::CompatibilityError, bug6192) {"0".encode("utf-32be").to_i}
assert_raise(Encoding::CompatibilityError, bug6192) {"0".encode("utf-32le").to_i}
assert_raise(Encoding::CompatibilityError, bug6192) {"0".encode("iso-2022-jp").to_i}
end
def test_to_s
a = S("me")
assert_equal("me", a.to_s)
assert_equal(a.__id__, a.to_s.__id__) if @cls == String
end
def test_to_str
a = S("me")
assert_equal("me", a.to_s)
assert_equal(a.__id__, a.to_s.__id__) if @cls == String
o = Object.new
def o.to_str
"at"
end
assert_equal("meat", a.concat(o))
o = Object.new
def o.to_str
foo_bar()
end
assert_match(/foo_bar/, assert_raise(NoMethodError) {a.concat(o)}.message)
end
def test_tr
assert_equal(S("hippo"), S("hello").tr(S("el"), S("ip")))
assert_equal(S("*e**o"), S("hello").tr(S("^aeiou"), S("*")))
assert_equal(S("hal"), S("ibm").tr(S("b-z"), S("a-z")))
a = "abc".force_encoding(Encoding::US_ASCII)
assert_equal(Encoding::US_ASCII, a.tr(S("z"), S("\u0101")).encoding, '[ruby-core:22326]')
assert_equal("a".hash, "a".tr("a", "\u0101").tr("\u0101", "a").hash, '[ruby-core:22328]')
assert_equal(true, "\u0101".tr("\u0101", "a").ascii_only?)
assert_equal(true, "\u3041".tr("\u3041", "a").ascii_only?)
assert_equal(false, "\u3041\u3042".tr("\u3041", "a").ascii_only?)
bug6156 = '[ruby-core:43335]'
str, range, star = %w[b a-z *].map{|s|s.encode("utf-16le")}
assert_equal(star, str.tr(range, star), bug6156)
end
def test_tr!
a = S("hello")
b = a.dup
assert_equal(S("hippo"), a.tr!(S("el"), S("ip")))
assert_equal(S("hippo"), a)
assert_equal(S("hello"),b)
a = S("hello")
assert_equal(S("*e**o"), a.tr!(S("^aeiou"), S("*")))
assert_equal(S("*e**o"), a)
a = S("IBM")
assert_equal(S("HAL"), a.tr!(S("B-Z"), S("A-Z")))
assert_equal(S("HAL"), a)
a = S("ibm")
assert_nil(a.tr!(S("B-Z"), S("A-Z")))
assert_equal(S("ibm"), a)
a = "abc".force_encoding(Encoding::US_ASCII)
assert_nil(a.tr!(S("z"), S("\u0101")), '[ruby-core:22326]')
assert_equal(Encoding::US_ASCII, a.encoding, '[ruby-core:22326]')
end
def test_tr_s
assert_equal(S("hypo"), S("hello").tr_s(S("el"), S("yp")))
assert_equal(S("h*o"), S("hello").tr_s(S("el"), S("*")))
assert_equal("a".hash, "\u0101\u0101".tr_s("\u0101", "a").hash)
assert_equal(true, "\u3041\u3041".tr("\u3041", "a").ascii_only?)
end
def test_tr_s!
a = S("hello")
b = a.dup
assert_equal(S("hypo"), a.tr_s!(S("el"), S("yp")))
assert_equal(S("hypo"), a)
assert_equal(S("hello"), b)
a = S("hello")
assert_equal(S("h*o"), a.tr_s!(S("el"), S("*")))
assert_equal(S("h*o"), a)
end
def test_unpack
a = [S("cat"), S("wom"), S("x"), S("yy")]
assert_equal(a, S("catwomx yy ").unpack(S("A3A3A3A3")))
assert_equal([S("cat")], S("cat \000\000").unpack(S("A*")))
assert_equal([S("cwx"), S("wx"), S("x"), S("yy")],
S("cwx yy ").unpack(S("A3@1A3@2A3A3")))
assert_equal([S("cat"), S("wom"), S("x\000\000"), S("yy\000")],
S("catwomx\000\000yy\000").unpack(S("a3a3a3a3")))
assert_equal([S("cat \000\000")], S("cat \000\000").unpack(S("a*")))
assert_equal([S("ca")], S("catdog").unpack(S("a2")))
assert_equal([S("cat\000\000")],
S("cat\000\000\000\000\000dog").unpack(S("a5")))
assert_equal([S("01100001")], S("\x61").unpack(S("B8")))
assert_equal([S("01100001")], S("\x61").unpack(S("B*")))
assert_equal([S("0110000100110111")], S("\x61\x37").unpack(S("B16")))
assert_equal([S("01100001"), S("00110111")], S("\x61\x37").unpack(S("B8B8")))
assert_equal([S("0110")], S("\x60").unpack(S("B4")))
assert_equal([S("01")], S("\x40").unpack(S("B2")))
assert_equal([S("01100001")], S("\x86").unpack(S("b8")))
assert_equal([S("01100001")], S("\x86").unpack(S("b*")))
assert_equal([S("0110000100110111")], S("\x86\xec").unpack(S("b16")))
assert_equal([S("01100001"), S("00110111")], S("\x86\xec").unpack(S("b8b8")))
assert_equal([S("0110")], S("\x06").unpack(S("b4")))
assert_equal([S("01")], S("\x02").unpack(S("b2")))
assert_equal([ 65, 66, 67 ], S("ABC").unpack(S("C3")))
assert_equal([ 255, 66, 67 ], S("\377BC").unpack("C*"))
assert_equal([ 65, 66, 67 ], S("ABC").unpack("c3"))
assert_equal([ -1, 66, 67 ], S("\377BC").unpack("c*"))
assert_equal([S("4142"), S("0a"), S("1")], S("AB\n\x10").unpack(S("H4H2H1")))
assert_equal([S("1424"), S("a0"), S("2")], S("AB\n\x02").unpack(S("h4h2h1")))
assert_equal([S("abc\002defcat\001"), S(""), S("")],
S("abc=02def=\ncat=\n=01=\n").unpack(S("M9M3M4")))
assert_equal([S("hello\n")], S("aGVsbG8K\n").unpack(S("m")))
assert_equal([S("hello\nhello\n")], S(",:&5L;&\\*:&5L;&\\*\n").unpack(S("u")))
assert_equal([0xa9, 0x42, 0x2260], S("\xc2\xa9B\xe2\x89\xa0").unpack(S("U*")))
=begin
skipping "Not tested:
D,d & double-precision float, native format\\
E & double-precision float, little-endian byte order\\
e & single-precision float, little-endian byte order\\
F,f & single-precision float, native format\\
G & double-precision float, network (big-endian) byte order\\
g & single-precision float, network (big-endian) byte order\\
I & unsigned integer\\
i & integer\\
L & unsigned long\\
l & long\\
m & string encoded in base64 (uuencoded)\\
N & long, network (big-endian) byte order\\
n & short, network (big-endian) byte-order\\
P & pointer to a structure (fixed-length string)\\
p & pointer to a null-terminated string\\
S & unsigned short\\
s & short\\
V & long, little-endian byte order\\
v & short, little-endian byte order\\
X & back up a byte\\
x & null byte\\
Z & ASCII string (null padded, count is width)\\
"
=end
end
def test_upcase
assert_equal(S("HELLO"), S("hello").upcase)
assert_equal(S("HELLO"), S("hello").upcase)
assert_equal(S("HELLO"), S("HELLO").upcase)
assert_equal(S("ABC HELLO 123"), S("abc HELLO 123").upcase)
end
def test_upcase!
a = S("hello")
b = a.dup
assert_equal(S("HELLO"), a.upcase!)
assert_equal(S("HELLO"), a)
assert_equal(S("hello"), b)
a = S("HELLO")
assert_nil(a.upcase!)
assert_equal(S("HELLO"), a)
end
def test_upto
a = S("aa")
start = S("aa")
count = 0
assert_equal(S("aa"), a.upto(S("zz")) {|s|
assert_equal(start, s)
start.succ!
count += 1
})
assert_equal(676, count)
end
def test_upto_numeric
a = S("00")
start = S("00")
count = 0
assert_equal(S("00"), a.upto(S("23")) {|s|
assert_equal(start, s, "[ruby-dev:39361]")
assert_equal(Encoding::US_ASCII, s.encoding)
start.succ!
count += 1
})
assert_equal(24, count, "[ruby-dev:39361]")
end
def test_upto_nonalnum
first = S("\u3041")
last = S("\u3093")
count = 0
assert_equal(first, first.upto(last) {|s|
count += 1
s.replace(last)
})
assert_equal(83, count, "[ruby-dev:39626]")
end
def test_mod_check
assert_raise(RuntimeError) {
s = ""
s.sub!(/\A/) { s.replace "z" * 2000; "zzz" }
}
end
def test_frozen_check
assert_raise(RuntimeError) {
s = ""
s.sub!(/\A/) { s.freeze; "zzz" }
}
end
class S2 < String
end
def test_str_new4
s = (0..54).to_a.join # length = 100
s2 = S2.new(s[10,90])
s3 = s2[10,80]
assert_equal((10..54).to_a.to_a.join, s2)
assert_equal((15..54).to_a.to_a.join, s3)
end
def test_rb_str_new4
s = "a" * 100
s2 = s[10,90]
assert_equal("a" * 90, s2)
s3 = s2[10,80]
assert_equal("a" * 80, s3)
end
class StringLike
def initialize(str)
@str = str
end
def to_str
@str
end
end
def test_rb_str_to_str
assert_equal("ab", "a" + StringLike.new("b"))
end
def test_rb_str_shared_replace
s = "a" * 100
s.succ!
assert_equal("a" * 99 + "b", s)
s = ""
s.succ!
assert_equal("", s)
end
def test_times
assert_raise(ArgumentError) { "a" * (-1) }
end
def test_splice!
l = S("1234\n234\n34\n4\n")
assert_equal(S("1234\n"), l.slice!(/\A.*\n/), "[ruby-dev:31665]")
assert_equal(S("234\n"), l.slice!(/\A.*\n/), "[ruby-dev:31665]")
assert_equal(S("34\n"), l.slice!(/\A.*\n/), "[ruby-dev:31665]")
assert_equal(S("4\n"), l.slice!(/\A.*\n/), "[ruby-dev:31665]")
assert_nil(l.slice!(/\A.*\n/), "[ruby-dev:31665]")
end
def test_times2
s1 = ''
100.times {|n|
s2 = "a" * n
assert_equal(s1, s2)
s1 << 'a'
}
assert_raise(ArgumentError) { "foo" * (-1) }
end
def test_respond_to
o = Object.new
def o.respond_to?(arg) [:to_str].include?(arg) ? nil : super end
def o.to_str() "" end
def o.==(other) "" == other end
assert_equal(false, "" == o)
end
def test_match_method
assert_equal("bar", "foobarbaz".match(/bar/).to_s)
o = Regexp.new('foo')
def o.match(x, y, z); x + y + z; end
assert_equal("foobarbaz", "foo".match(o, "bar", "baz"))
x = nil
"foo".match(o, "bar", "baz") {|y| x = y }
assert_equal("foobarbaz", x)
assert_raise(ArgumentError) { "foo".match }
end
def test_clear
s = "foo" * 100
s.clear
assert_equal("", s)
end
def test_to_s_2
c = Class.new(String)
s = c.new
s.replace("foo")
assert_equal("foo", s.to_s)
assert_instance_of(String, s.to_s)
end
def test_inspect_nul
bug8290 = '[ruby-core:54458]'
s = "\0" + "12"
assert_equal '"\u000012"', s.inspect, bug8290
s = "\0".b + "12"
assert_equal '"\x0012"', s.inspect, bug8290
end
def test_partition
assert_equal(%w(he l lo), "hello".partition(/l/))
assert_equal(%w(he l lo), "hello".partition("l"))
assert_raise(TypeError) { "hello".partition(1) }
def (hyphen = Object.new).to_str; "-"; end
assert_equal(%w(foo - bar), "foo-bar".partition(hyphen), '[ruby-core:23540]')
bug6206 = '[ruby-dev:45441]'
Encoding.list.each do |enc|
next unless enc.ascii_compatible?
s = S("a:".force_encoding(enc))
assert_equal([enc]*3, s.partition("|").map(&:encoding), bug6206)
end
assert_equal(["\u30E6\u30FC\u30B6", "@", "\u30C9\u30E1.\u30A4\u30F3"],
"\u30E6\u30FC\u30B6@\u30C9\u30E1.\u30A4\u30F3".partition(/[@.]/))
end
def test_rpartition
assert_equal(%w(hel l o), "hello".rpartition(/l/))
assert_equal(%w(hel l o), "hello".rpartition("l"))
assert_raise(TypeError) { "hello".rpartition(1) }
def (hyphen = Object.new).to_str; "-"; end
assert_equal(%w(foo - bar), "foo-bar".rpartition(hyphen), '[ruby-core:23540]')
bug6206 = '[ruby-dev:45441]'
Encoding.list.each do |enc|
next unless enc.ascii_compatible?
s = S("a:".force_encoding(enc))
assert_equal([enc]*3, s.rpartition("|").map(&:encoding), bug6206)
end
bug8138 = '[ruby-dev:47183]'
assert_equal(["\u30E6\u30FC\u30B6@\u30C9\u30E1", ".", "\u30A4\u30F3"],
"\u30E6\u30FC\u30B6@\u30C9\u30E1.\u30A4\u30F3".rpartition(/[@.]/), bug8138)
end
def test_setter
assert_raise(TypeError) { $/ = 1 }
end
def test_to_id
c = Class.new
c.class_eval do
def initialize
@foo = :foo
end
end
assert_raise(TypeError) do
c.class_eval { attr 1 }
end
o = Object.new
def o.to_str; :foo; end
assert_raise(TypeError) do
c.class_eval { attr 1 }
end
class << o;remove_method :to_str;end
def o.to_str; "foo"; end
assert_nothing_raised do
c.class_eval { attr o }
end
assert_equal(:foo, c.new.foo)
end
def test_gsub_enumerator
assert_normal_exit %q{"abc".gsub(/./).next}, "[ruby-dev:34828]"
end
def test_clear_nonasciicompat
assert_equal("", "\u3042".encode("ISO-2022-JP").clear)
end
def test_try_convert
assert_equal(nil, String.try_convert(1))
assert_equal("foo", String.try_convert("foo"))
end
def test_substr_negative_begin
assert_equal("\u3042", ("\u3042" * 100)[-1])
end
=begin
def test_compare_different_encoding_string
s1 = "\xff".force_encoding("UTF-8")
s2 = "\xff".force_encoding("ISO-2022-JP")
assert_equal([-1, 1], [s1 <=> s2, s2 <=> s1].sort)
end
=end
def test_casecmp
assert_equal(1, "\u3042B".casecmp("\u3042a"))
end
def test_upcase2
assert_equal("\u3042AB", "\u3042aB".upcase)
end
def test_downcase2
assert_equal("\u3042ab", "\u3042aB".downcase)
end
def test_rstrip
assert_equal("\u3042", "\u3042 ".rstrip)
assert_raise(Encoding::CompatibilityError) { "\u3042".encode("ISO-2022-JP").rstrip }
end
=begin
def test_symbol_table_overflow
assert_in_out_err([], <<-INPUT, [], /symbol table overflow \(symbol [a-z]{8}\) \(RuntimeError\)/)
("aaaaaaaa".."zzzzzzzz").each {|s| s.to_sym }
INPUT
end
=end
def test_shared_force_encoding
s = "\u{3066}\u{3059}\u{3068}".gsub(//, '')
h = {}
h[s] = nil
k = h.keys[0]
assert_equal(s, k, '[ruby-dev:39068]')
assert_equal(Encoding::UTF_8, k.encoding, '[ruby-dev:39068]')
s.dup.force_encoding(Encoding::ASCII_8BIT).gsub(//, '')
k = h.keys[0]
assert_equal(s, k, '[ruby-dev:39068]')
assert_equal(Encoding::UTF_8, k.encoding, '[ruby-dev:39068]')
end
def test_ascii_incomat_inspect
bug4081 = '[ruby-core:33283]'
[Encoding::UTF_16LE, Encoding::UTF_16BE,
Encoding::UTF_32LE, Encoding::UTF_32BE].each do |e|
assert_equal('"abc"', "abc".encode(e).inspect)
assert_equal('"\\u3042\\u3044\\u3046"', "\u3042\u3044\u3046".encode(e).inspect)
assert_equal('"ab\\"c"', "ab\"c".encode(e).inspect, bug4081)
end
begin
verbose, $VERBOSE = $VERBOSE, nil
ext = Encoding.default_external
Encoding.default_external = "us-ascii"
$VERBOSE = verbose
i = "abc\"\\".force_encoding("utf-8").inspect
ensure
$VERBOSE = nil
Encoding.default_external = ext
$VERBOSE = verbose
end
assert_equal('"abc\\"\\\\"', i, bug4081)
end
def test_dummy_inspect
assert_equal('"\e\x24\x42\x22\x4C\x22\x68\e\x28\x42"',
"\u{ffe2}\u{2235}".encode("cp50220").inspect)
end
def test_prepend
assert_equal(S("hello world!"), "world!".prepend("hello "))
foo = Object.new
def foo.to_str
"b"
end
assert_equal(S("ba"), "a".prepend(foo))
a = S("world")
b = S("hello ")
a.prepend(b)
assert_equal(S("hello world"), a)
assert_equal(S("hello "), b)
end
def u(str)
str.force_encoding(Encoding::UTF_8)
end
def test_byteslice
assert_equal("h", "hello".byteslice(0))
assert_equal(nil, "hello".byteslice(5))
assert_equal("o", "hello".byteslice(-1))
assert_equal(nil, "hello".byteslice(-6))
assert_equal("", "hello".byteslice(0, 0))
assert_equal("hello", "hello".byteslice(0, 6))
assert_equal("hello", "hello".byteslice(0, 6))
assert_equal("", "hello".byteslice(5, 1))
assert_equal("o", "hello".byteslice(-1, 6))
assert_equal(nil, "hello".byteslice(-6, 1))
assert_equal(nil, "hello".byteslice(0, -1))
assert_equal("h", "hello".byteslice(0..0))
assert_equal("", "hello".byteslice(5..0))
assert_equal("o", "hello".byteslice(4..5))
assert_equal(nil, "hello".byteslice(6..0))
assert_equal("", "hello".byteslice(-1..0))
assert_equal("llo", "hello".byteslice(-3..5))
assert_equal(u("\x81"), "\u3042".byteslice(1))
assert_equal(u("\x81\x82"), "\u3042".byteslice(1, 2))
assert_equal(u("\x81\x82"), "\u3042".byteslice(1..2))
assert_equal(u("\x82")+("\u3042"*9), ("\u3042"*10).byteslice(2, 28))
bug7954 = '[ruby-dev:47108]'
assert_equal(false, "\u3042".byteslice(0, 2).valid_encoding?, bug7954)
assert_equal(false, ("\u3042"*10).byteslice(0, 20).valid_encoding?, bug7954)
end
def test_unknown_string_option
str = nil
assert_nothing_raised(SyntaxError) do
eval(%{
str = begin"hello"end
})
end
assert_equal "hello", str
end
def test_eq_tilde_can_be_overridden
assert_separately([], <<-RUBY)
class String
undef =~
def =~(str)
"foo"
end
end
assert_equal("foo", "" =~ //)
RUBY
end
class Bug9581 < String
def =~ re; :foo end
end
def test_regexp_match_subclass
s = Bug9581.new("abc")
r = /abc/
assert_equal(:foo, s =~ r)
assert_equal(:foo, s.send(:=~, r))
assert_equal(:foo, s.send(:=~, /abc/))
assert_equal(:foo, s =~ /abc/, "should not use optimized instruction")
end
def test_LSHIFT_neary_long_max
return unless @cls == String
assert_ruby_status([], <<-'end;', '[ruby-core:61886] [Bug #9709]', timeout: 20)
begin
a = "a" * 0x4000_0000
a << "a" * 0x1_0000
rescue NoMemoryError
end
end;
end if [0].pack("l!").bytesize < [nil].pack("p").bytesize
# enable only when string size range is smaller than memory space
end
class TestString2 < TestString
def initialize(*args)
super
@cls = S2
end
end
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