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|
# -*- encoding: binary -*-
require_relative '../../spec_helper'
require_relative 'fixtures/classes'
require_relative 'fixtures/marshal_data'
describe "Marshal.dump" do
it "dumps nil" do
Marshal.dump(nil).should == "\004\b0"
end
it "dumps true" do
Marshal.dump(true).should == "\004\bT"
end
it "dumps false" do
Marshal.dump(false).should == "\004\bF"
end
describe "with a Fixnum" do
it "dumps a Fixnum" do
[ [Marshal, 0, "\004\bi\000"],
[Marshal, 5, "\004\bi\n"],
[Marshal, 8, "\004\bi\r"],
[Marshal, 122, "\004\bi\177"],
[Marshal, 123, "\004\bi\001{"],
[Marshal, 1234, "\004\bi\002\322\004"],
[Marshal, -8, "\004\bi\363"],
[Marshal, -123, "\004\bi\200"],
[Marshal, -124, "\004\bi\377\204"],
[Marshal, -1234, "\004\bi\376.\373"],
[Marshal, -4516727, "\004\bi\375\211\024\273"],
[Marshal, 2**8, "\004\bi\002\000\001"],
[Marshal, 2**16, "\004\bi\003\000\000\001"],
[Marshal, 2**24, "\004\bi\004\000\000\000\001"],
[Marshal, -2**8, "\004\bi\377\000"],
[Marshal, -2**16, "\004\bi\376\000\000"],
[Marshal, -2**24, "\004\bi\375\000\000\000"],
].should be_computed_by(:dump)
end
platform_is wordsize: 64 do
it "dumps a positive Fixnum > 31 bits as a Bignum" do
Marshal.dump(2**31 + 1).should == "\x04\bl+\a\x01\x00\x00\x80"
end
it "dumps a negative Fixnum > 31 bits as a Bignum" do
Marshal.dump(-2**31 - 1).should == "\x04\bl-\a\x01\x00\x00\x80"
end
end
end
describe "with a Symbol" do
it "dumps a Symbol" do
Marshal.dump(:symbol).should == "\004\b:\vsymbol"
end
it "dumps a big Symbol" do
Marshal.dump(('big' * 100).to_sym).should == "\004\b:\002,\001#{'big' * 100}"
end
it "dumps an encoded Symbol" do
s = "\u2192"
[ [Marshal, s.encode("utf-8").to_sym,
"\x04\bI:\b\xE2\x86\x92\x06:\x06ET"],
[Marshal, s.encode("utf-16").to_sym,
"\x04\bI:\t\xFE\xFF!\x92\x06:\rencoding\"\vUTF-16"],
[Marshal, s.encode("utf-16le").to_sym,
"\x04\bI:\a\x92!\x06:\rencoding\"\rUTF-16LE"],
[Marshal, s.encode("utf-16be").to_sym,
"\x04\bI:\a!\x92\x06:\rencoding\"\rUTF-16BE"],
[Marshal, s.encode("euc-jp").to_sym,
"\x04\bI:\a\xA2\xAA\x06:\rencoding\"\vEUC-JP"],
[Marshal, s.encode("sjis").to_sym,
"\x04\bI:\a\x81\xA8\x06:\rencoding\"\x10Windows-31J"]
].should be_computed_by(:dump)
end
it "dumps a binary encoded Symbol" do
s = "\u2192".force_encoding("binary").to_sym
Marshal.dump(s).should == "\x04\b:\b\xE2\x86\x92"
end
it "dumps multiple Symbols sharing the same encoding" do
# Note that the encoding is a link for the second Symbol
symbol1 = "I:\t\xE2\x82\xACa\x06:\x06ET"
symbol2 = "I:\t\xE2\x82\xACb\x06;\x06T"
value = [
"€a".force_encoding(Encoding::UTF_8).to_sym,
"€b".force_encoding(Encoding::UTF_8).to_sym
]
Marshal.dump(value).should == "\x04\b[\a#{symbol1}#{symbol2}"
value = [*value, value[0]]
Marshal.dump(value).should == "\x04\b[\b#{symbol1}#{symbol2};\x00"
end
end
describe "with an object responding to #marshal_dump" do
it "dumps the object returned by #marshal_dump" do
Marshal.dump(UserMarshal.new).should == "\x04\bU:\x10UserMarshal:\tdata"
end
it "does not use Class#name" do
UserMarshal.should_not_receive(:name)
Marshal.dump(UserMarshal.new)
end
end
describe "with an object responding to #_dump" do
it "dumps the object returned by #_dump" do
Marshal.dump(UserDefined.new).should == "\004\bu:\020UserDefined\022\004\b[\a:\nstuff;\000"
end
it "raises a TypeError if _dump returns a non-string" do
m = mock("marshaled")
m.should_receive(:_dump).and_return(0)
-> { Marshal.dump(m) }.should raise_error(TypeError)
end
it "favors marshal_dump over _dump" do
m = mock("marshaled")
m.should_receive(:marshal_dump).and_return(0)
m.should_not_receive(:_dump)
Marshal.dump(m)
end
it "indexes instance variables of a String returned by #_dump at first and then indexes the object itself" do
class MarshalSpec::M1::A
def _dump(level)
s = "<dump>"
s.instance_variable_set(:@foo, "bar")
s
end
end
a = MarshalSpec::M1::A.new
# 0-based index of the object a = 2, that is encoded as \x07 and printed as "\a" character.
# Objects are serialized in the following order: Array, a, "bar".
# But they are indexed in different order: Array (index=0), "bar" (index=1), a (index=2)
# So the second occurenc of the object a is encoded as an index 2.
reference = "@\a"
Marshal.dump([a, a]).should == "\x04\b[\aIu:\x17MarshalSpec::M1::A\v<dump>\x06:\t@foo\"\bbar#{reference}"
end
describe "Core library classes with #_dump returning a String with instance variables" do
it "indexes instance variables and then a Time object itself" do
t = Time.utc(2022)
reference = "@\a"
Marshal.dump([t, t]).should == "\x04\b[\aIu:\tTime\r \x80\x1E\xC0\x00\x00\x00\x00\x06:\tzoneI\"\bUTC\x06:\x06EF#{reference}"
end
end
end
describe "with a Class" do
it "dumps a builtin Class" do
Marshal.dump(String).should == "\004\bc\vString"
end
it "dumps a user Class" do
Marshal.dump(UserDefined).should == "\x04\bc\x10UserDefined"
end
it "dumps a nested Class" do
Marshal.dump(UserDefined::Nested).should == "\004\bc\030UserDefined::Nested"
end
it "raises TypeError with an anonymous Class" do
-> { Marshal.dump(Class.new) }.should raise_error(TypeError)
end
it "raises TypeError with a singleton Class" do
-> { Marshal.dump(class << self; self end) }.should raise_error(TypeError)
end
end
describe "with a Module" do
it "dumps a builtin Module" do
Marshal.dump(Marshal).should == "\004\bm\fMarshal"
end
it "raises TypeError with an anonymous Module" do
-> { Marshal.dump(Module.new) }.should raise_error(TypeError)
end
end
describe "with a Float" do
it "dumps a Float" do
[ [Marshal, 0.0, "\004\bf\0060"],
[Marshal, -0.0, "\004\bf\a-0"],
[Marshal, 1.0, "\004\bf\0061"],
[Marshal, 123.4567, "\004\bf\r123.4567"],
[Marshal, -0.841, "\x04\bf\v-0.841"],
[Marshal, -9876.345, "\x04\bf\x0E-9876.345"],
[Marshal, infinity_value, "\004\bf\binf"],
[Marshal, -infinity_value, "\004\bf\t-inf"],
[Marshal, nan_value, "\004\bf\bnan"],
].should be_computed_by(:dump)
end
end
describe "with a Bignum" do
it "dumps a Bignum" do
[ [Marshal, -4611686018427387903, "\004\bl-\t\377\377\377\377\377\377\377?"],
[Marshal, -2361183241434822606847, "\004\bl-\n\377\377\377\377\377\377\377\377\177\000"],
].should be_computed_by(:dump)
end
it "dumps a Bignum" do
[ [Marshal, 2**64, "\004\bl+\n\000\000\000\000\000\000\000\000\001\000"],
[Marshal, 2**90, "\004\bl+\v#{"\000" * 11}\004"],
[Marshal, -2**63, "\004\bl-\t\000\000\000\000\000\000\000\200"],
[Marshal, -2**64, "\004\bl-\n\000\000\000\000\000\000\000\000\001\000"],
].should be_computed_by(:dump)
end
it "increases the object links counter" do
obj = Object.new
object_1_link = "\x06" # representing of (0-based) index=1 (by adding 5 for small Integers)
object_2_link = "\x07" # representing of index=2
# objects: Array, Object, Object
Marshal.dump([obj, obj]).should == "\x04\b[\ao:\vObject\x00@#{object_1_link}"
# objects: Array, Bignum, Object, Object
Marshal.dump([2**64, obj, obj]).should == "\x04\b[\bl+\n\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00o:\vObject\x00@#{object_2_link}"
Marshal.dump([2**48, obj, obj]).should == "\x04\b[\bl+\t\x00\x00\x00\x00\x00\x00\x01\x00o:\vObject\x00@#{object_2_link}"
Marshal.dump([2**32, obj, obj]).should == "\x04\b[\bl+\b\x00\x00\x00\x00\x01\x00o:\vObject\x00@#{object_2_link}"
end
end
describe "with a String" do
it "dumps a blank String" do
Marshal.dump("".force_encoding("binary")).should == "\004\b\"\000"
end
it "dumps a short String" do
Marshal.dump("short".force_encoding("binary")).should == "\004\b\"\012short"
end
it "dumps a long String" do
Marshal.dump(("big" * 100).force_encoding("binary")).should == "\004\b\"\002,\001#{"big" * 100}"
end
it "dumps a String extended with a Module" do
Marshal.dump("".extend(Meths).force_encoding("binary")).should == "\004\be:\nMeths\"\000"
end
it "dumps a String subclass" do
Marshal.dump(UserString.new.force_encoding("binary")).should == "\004\bC:\017UserString\"\000"
end
it "dumps a String subclass extended with a Module" do
Marshal.dump(UserString.new.extend(Meths).force_encoding("binary")).should == "\004\be:\nMethsC:\017UserString\"\000"
end
it "dumps a String with instance variables" do
str = ""
str.instance_variable_set("@foo", "bar")
Marshal.dump(str.force_encoding("binary")).should == "\x04\bI\"\x00\x06:\t@foo\"\bbar"
end
it "dumps a US-ASCII String" do
str = "abc".force_encoding("us-ascii")
Marshal.dump(str).should == "\x04\bI\"\babc\x06:\x06EF"
end
it "dumps a UTF-8 String" do
str = "\x6d\xc3\xb6\x68\x72\x65".force_encoding("utf-8")
Marshal.dump(str).should == "\x04\bI\"\vm\xC3\xB6hre\x06:\x06ET"
end
it "dumps a String in another encoding" do
str = "\x6d\x00\xf6\x00\x68\x00\x72\x00\x65\x00".force_encoding("utf-16le")
result = "\x04\bI\"\x0Fm\x00\xF6\x00h\x00r\x00e\x00\x06:\rencoding\"\rUTF-16LE"
Marshal.dump(str).should == result
end
it "dumps multiple strings using symlinks for the :E (encoding) symbol" do
Marshal.dump(["".encode("us-ascii"), "".encode("utf-8")]).should == "\x04\b[\aI\"\x00\x06:\x06EFI\"\x00\x06;\x00T"
end
end
describe "with a Regexp" do
it "dumps a Regexp" do
Marshal.dump(/\A.\Z/).should == "\x04\bI/\n\\A.\\Z\x00\x06:\x06EF"
end
it "dumps a Regexp with flags" do
Marshal.dump(//im).should == "\x04\bI/\x00\x05\x06:\x06EF"
end
it "dumps a Regexp with instance variables" do
o = Regexp.new("")
o.instance_variable_set(:@ivar, :ivar)
Marshal.dump(o).should == "\x04\bI/\x00\x00\a:\x06EF:\n@ivar:\tivar"
end
it "dumps an extended Regexp" do
Marshal.dump(Regexp.new("").extend(Meths)).should == "\x04\bIe:\nMeths/\x00\x00\x06:\x06EF"
end
it "dumps a Regexp subclass" do
Marshal.dump(UserRegexp.new("")).should == "\x04\bIC:\x0FUserRegexp/\x00\x00\x06:\x06EF"
end
it "dumps a binary Regexp" do
o = Regexp.new("".force_encoding("binary"), Regexp::FIXEDENCODING)
Marshal.dump(o).should == "\x04\b/\x00\x10"
end
it "dumps a UTF-8 Regexp" do
o = Regexp.new("".force_encoding("utf-8"), Regexp::FIXEDENCODING)
Marshal.dump(o).should == "\x04\bI/\x00\x10\x06:\x06ET"
end
it "dumps a Regexp in another encoding" do
o = Regexp.new("".force_encoding("utf-16le"), Regexp::FIXEDENCODING)
Marshal.dump(o).should == "\x04\bI/\x00\x10\x06:\rencoding\"\rUTF-16LE"
end
end
describe "with an Array" do
it "dumps an empty Array" do
Marshal.dump([]).should == "\004\b[\000"
end
it "dumps a non-empty Array" do
Marshal.dump([:a, 1, 2]).should == "\004\b[\b:\006ai\006i\a"
end
it "dumps an Array subclass" do
Marshal.dump(UserArray.new).should == "\004\bC:\016UserArray[\000"
end
it "dumps a recursive Array" do
a = []
a << a
Marshal.dump(a).should == "\x04\b[\x06@\x00"
end
it "dumps an Array with instance variables" do
a = []
a.instance_variable_set(:@ivar, 1)
Marshal.dump(a).should == "\004\bI[\000\006:\n@ivari\006"
end
it "dumps an extended Array" do
Marshal.dump([].extend(Meths)).should == "\004\be:\nMeths[\000"
end
end
describe "with a Hash" do
it "dumps a Hash" do
Marshal.dump({}).should == "\004\b{\000"
end
it "dumps a Hash subclass" do
Marshal.dump(UserHash.new).should == "\004\bC:\rUserHash{\000"
end
it "dumps a Hash with a default value" do
Marshal.dump(Hash.new(1)).should == "\004\b}\000i\006"
end
it "raises a TypeError with hash having default proc" do
-> { Marshal.dump(Hash.new {}) }.should raise_error(TypeError)
end
it "dumps a Hash with instance variables" do
a = {}
a.instance_variable_set(:@ivar, 1)
Marshal.dump(a).should == "\004\bI{\000\006:\n@ivari\006"
end
it "dumps an extended Hash" do
Marshal.dump({}.extend(Meths)).should == "\004\be:\nMeths{\000"
end
it "dumps an Hash subclass with a parameter to initialize" do
Marshal.dump(UserHashInitParams.new(1)).should == "\004\bIC:\027UserHashInitParams{\000\006:\a@ai\006"
end
end
describe "with a Struct" do
it "dumps a Struct" do
Marshal.dump(Struct::Pyramid.new).should == "\004\bS:\024Struct::Pyramid\000"
end
it "dumps a Struct" do
Marshal.dump(Struct::Useful.new(1, 2)).should == "\004\bS:\023Struct::Useful\a:\006ai\006:\006bi\a"
end
it "dumps a Struct with instance variables" do
st = Struct.new("Thick").new
st.instance_variable_set(:@ivar, 1)
Marshal.dump(st).should == "\004\bIS:\022Struct::Thick\000\006:\n@ivari\006"
Struct.send(:remove_const, :Thick)
end
it "dumps an extended Struct" do
obj = Struct.new("Extended", :a, :b).new.extend(Meths)
Marshal.dump(obj).should == "\004\be:\nMethsS:\025Struct::Extended\a:\006a0:\006b0"
s = 'hi'
obj.a = [:a, s]
obj.b = [:Meths, s]
Marshal.dump(obj).should == "\004\be:\nMethsS:\025Struct::Extended\a:\006a[\a;\a\"\ahi:\006b[\a;\000@\a"
Struct.send(:remove_const, :Extended)
end
end
describe "with an Object" do
it "dumps an Object" do
Marshal.dump(Object.new).should == "\004\bo:\x0BObject\x00"
end
it "dumps an extended Object" do
Marshal.dump(Object.new.extend(Meths)).should == "\004\be:\x0AMethso:\x0BObject\x00"
end
it "dumps an Object with an instance variable" do
obj = Object.new
obj.instance_variable_set(:@ivar, 1)
Marshal.dump(obj).should == "\004\bo:\vObject\006:\n@ivari\006"
end
it "dumps an Object with a non-US-ASCII instance variable" do
obj = Object.new
ivar = "@é".force_encoding(Encoding::UTF_8).to_sym
obj.instance_variable_set(ivar, 1)
Marshal.dump(obj).should == "\x04\bo:\vObject\x06I:\b@\xC3\xA9\x06:\x06ETi\x06"
end
it "dumps an Object that has had an instance variable added and removed as though it was never set" do
obj = Object.new
obj.instance_variable_set(:@ivar, 1)
obj.send(:remove_instance_variable, :@ivar)
Marshal.dump(obj).should == "\004\bo:\x0BObject\x00"
end
it "dumps an Object if it has a singleton class but no singleton methods" do
obj = Object.new
obj.singleton_class
Marshal.dump(obj).should == "\004\bo:\x0BObject\x00"
end
it "raises if an Object has a singleton class and singleton methods" do
obj = Object.new
def obj.foo; end
-> {
Marshal.dump(obj)
}.should raise_error(TypeError, "singleton can't be dumped")
end
it "dumps a BasicObject subclass if it defines respond_to?" do
obj = MarshalSpec::BasicObjectSubWithRespondToFalse.new
Marshal.dump(obj).should == "\x04\bo:2MarshalSpec::BasicObjectSubWithRespondToFalse\x00"
end
end
describe "with a Range" do
it "dumps a Range inclusive of end (with indeterminant order)" do
dump = Marshal.dump(1..2)
load = Marshal.load(dump)
load.should == (1..2)
end
it "dumps a Range exclusive of end (with indeterminant order)" do
dump = Marshal.dump(1...2)
load = Marshal.load(dump)
load.should == (1...2)
end
ruby_version_is ""..."3.0" do
it "dumps a Range with extra instance variables" do
range = (1...3)
range.instance_variable_set :@foo, 42
dump = Marshal.dump(range)
load = Marshal.load(dump)
load.should == range
load.instance_variable_get(:@foo).should == 42
end
end
end
describe "with a Time" do
before :each do
@internal = Encoding.default_internal
Encoding.default_internal = Encoding::UTF_8
@utc = Time.utc(2012, 1, 1)
@utc_dump = @utc.send(:_dump)
with_timezone 'AST', 3 do
@t = Time.local(2012, 1, 1)
@fract = Time.local(2012, 1, 1, 1, 59, 56.2)
@t_dump = @t.send(:_dump)
@fract_dump = @fract.send(:_dump)
end
end
after :each do
Encoding.default_internal = @internal
end
it "dumps the zone and the offset" do
with_timezone 'AST', 3 do
dump = Marshal.dump(@t)
base = "\x04\bIu:\tTime\r#{@t_dump}\a"
offset = ":\voffseti\x020*"
zone = ":\tzoneI\"\bAST\x06:\x06EF" # Last is 'F' (US-ASCII)
[ "#{base}#{offset}#{zone}", "#{base}#{zone}#{offset}" ].should include(dump)
end
end
it "dumps the zone, but not the offset if zone is UTC" do
dump = Marshal.dump(@utc)
zone = ":\tzoneI\"\bUTC\x06:\x06EF" # Last is 'F' (US-ASCII)
dump.should == "\x04\bIu:\tTime\r#{@utc_dump}\x06#{zone}"
end
end
describe "with an Exception" do
it "dumps an empty Exception" do
Marshal.dump(Exception.new).should == "\x04\bo:\x0EException\a:\tmesg0:\abt0"
end
it "dumps the message for the exception" do
Marshal.dump(Exception.new("foo")).should == "\x04\bo:\x0EException\a:\tmesg\"\bfoo:\abt0"
end
it "contains the filename in the backtrace" do
obj = Exception.new("foo")
obj.set_backtrace(["foo/bar.rb:10"])
Marshal.dump(obj).should == "\x04\bo:\x0EException\a:\tmesg\"\bfoo:\abt[\x06\"\x12foo/bar.rb:10"
end
it "dumps instance variables if they exist" do
obj = Exception.new("foo")
obj.instance_variable_set(:@ivar, 1)
Marshal.dump(obj).should == "\x04\bo:\x0EException\b:\tmesg\"\bfoo:\abt0:\n@ivari\x06"
end
it "dumps the cause for the exception" do
exc = nil
begin
raise StandardError, "the cause"
rescue StandardError => cause
begin
raise RuntimeError, "the consequence"
rescue RuntimeError => e
e.cause.should equal(cause)
exc = e
end
end
reloaded = Marshal.load(Marshal.dump(exc))
reloaded.cause.should be_an_instance_of(StandardError)
reloaded.cause.message.should == "the cause"
end
end
it "dumps subsequent appearances of a symbol as a link" do
Marshal.dump([:a, :a]).should == "\004\b[\a:\006a;\000"
end
it "dumps subsequent appearances of an object as a link" do
o = Object.new
Marshal.dump([o, o]).should == "\004\b[\ao:\vObject\000@\006"
end
MarshalSpec::DATA_19.each do |description, (object, marshal, attributes)|
it "#{description} returns a binary string" do
Marshal.dump(object).encoding.should == Encoding::BINARY
end
end
it "raises an ArgumentError when the recursion limit is exceeded" do
h = {'one' => {'two' => {'three' => 0}}}
-> { Marshal.dump(h, 3) }.should raise_error(ArgumentError)
-> { Marshal.dump([h], 4) }.should raise_error(ArgumentError)
-> { Marshal.dump([], 0) }.should raise_error(ArgumentError)
-> { Marshal.dump([[[]]], 1) }.should raise_error(ArgumentError)
end
it "ignores the recursion limit if the limit is negative" do
Marshal.dump([], -1).should == "\004\b[\000"
Marshal.dump([[]], -1).should == "\004\b[\006[\000"
Marshal.dump([[[]]], -1).should == "\004\b[\006[\006[\000"
end
describe "when passed an IO" do
it "writes the serialized data to the IO-Object" do
(obj = mock('test')).should_receive(:write).at_least(1)
Marshal.dump("test", obj)
end
it "returns the IO-Object" do
(obj = mock('test')).should_receive(:write).at_least(1)
Marshal.dump("test", obj).should == obj
end
it "raises an Error when the IO-Object does not respond to #write" do
obj = mock('test')
-> { Marshal.dump("test", obj) }.should raise_error(TypeError)
end
it "calls binmode when it's defined" do
obj = mock('test')
obj.should_receive(:write).at_least(1)
obj.should_receive(:binmode).at_least(1)
Marshal.dump("test", obj)
end
end
describe "when passed a StringIO" do
it "should raise an error" do
require "stringio"
-> { Marshal.dump(StringIO.new) }.should raise_error(TypeError)
end
end
it "raises a TypeError if marshalling a Method instance" do
-> { Marshal.dump(Marshal.method(:dump)) }.should raise_error(TypeError)
end
it "raises a TypeError if marshalling a Proc" do
-> { Marshal.dump(proc {}) }.should raise_error(TypeError)
end
it "raises a TypeError if dumping a IO/File instance" do
-> { Marshal.dump(STDIN) }.should raise_error(TypeError)
-> { File.open(__FILE__) { |f| Marshal.dump(f) } }.should raise_error(TypeError)
end
it "raises a TypeError if dumping a MatchData instance" do
-> { Marshal.dump(/(.)/.match("foo")) }.should raise_error(TypeError)
end
it "raises a TypeError if dumping a Mutex instance" do
m = Mutex.new
-> { Marshal.dump(m) }.should raise_error(TypeError)
end
end
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