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-rw-r--r--spec/ruby/core/string/unpack/shared/basic.rb37
-rw-r--r--spec/ruby/core/string/unpack/shared/float.rb319
-rw-r--r--spec/ruby/core/string/unpack/shared/integer.rb411
-rw-r--r--spec/ruby/core/string/unpack/shared/string.rb51
-rw-r--r--spec/ruby/core/string/unpack/shared/taint.rb2
-rw-r--r--spec/ruby/core/string/unpack/shared/unicode.rb72
6 files changed, 892 insertions, 0 deletions
diff --git a/spec/ruby/core/string/unpack/shared/basic.rb b/spec/ruby/core/string/unpack/shared/basic.rb
new file mode 100644
index 0000000000..734630bda0
--- /dev/null
+++ b/spec/ruby/core/string/unpack/shared/basic.rb
@@ -0,0 +1,37 @@
+describe :string_unpack_basic, shared: true do
+ it "ignores whitespace in the format string" do
+ "abc".unpack("a \t\n\v\f\r"+unpack_format).should be_an_instance_of(Array)
+ end
+
+ it "calls #to_str to coerce the directives string" do
+ d = mock("unpack directive")
+ d.should_receive(:to_str).and_return("a"+unpack_format)
+ "abc".unpack(d).should be_an_instance_of(Array)
+ end
+
+ ruby_version_is ""..."3.3" do
+ it "warns about using an unknown directive" do
+ -> { "abcdefgh".unpack("a R" + unpack_format) }.should complain(/unknown unpack directive 'R' in 'a R#{unpack_format}'/)
+ -> { "abcdefgh".unpack("a 0" + unpack_format) }.should complain(/unknown unpack directive '0' in 'a 0#{unpack_format}'/)
+ -> { "abcdefgh".unpack("a :" + unpack_format) }.should complain(/unknown unpack directive ':' in 'a :#{unpack_format}'/)
+ end
+ end
+
+ ruby_version_is "3.3" do
+ it "raises ArgumentError when a directive is unknown" do
+ -> { "abcdefgh".unpack("a K" + unpack_format) }.should raise_error(ArgumentError, "unknown unpack directive 'K' in 'a K#{unpack_format}'")
+ -> { "abcdefgh".unpack("a 0" + unpack_format) }.should raise_error(ArgumentError, "unknown unpack directive '0' in 'a 0#{unpack_format}'")
+ -> { "abcdefgh".unpack("a :" + unpack_format) }.should raise_error(ArgumentError, "unknown unpack directive ':' in 'a :#{unpack_format}'")
+ end
+ end
+end
+
+describe :string_unpack_no_platform, shared: true do
+ it "raises an ArgumentError when the format modifier is '_'" do
+ -> { "abcdefgh".unpack(unpack_format("_")) }.should raise_error(ArgumentError)
+ end
+
+ it "raises an ArgumentError when the format modifier is '!'" do
+ -> { "abcdefgh".unpack(unpack_format("!")) }.should raise_error(ArgumentError)
+ end
+end
diff --git a/spec/ruby/core/string/unpack/shared/float.rb b/spec/ruby/core/string/unpack/shared/float.rb
new file mode 100644
index 0000000000..b31c2c8bdc
--- /dev/null
+++ b/spec/ruby/core/string/unpack/shared/float.rb
@@ -0,0 +1,319 @@
+# encoding: binary
+
+describe :string_unpack_float_le, shared: true do
+ it "decodes one float for a single format character" do
+ "\x8f\xc2\xb5?".unpack(unpack_format).should == [1.4199999570846558]
+ end
+
+ it "decodes a negative float" do
+ "\xcd\xcc\x08\xc2".unpack(unpack_format).should == [-34.200000762939453]
+ end
+
+ it "decodes two floats for two format characters" do
+ array = "\x9a\x999@33\xb3?".unpack(unpack_format(nil, 2))
+ array.should == [2.9000000953674316, 1.399999976158142]
+ end
+
+ it "decodes the number of floats requested by the count modifier" do
+ array = "\x9a\x999@33\xb3?33\x03A".unpack(unpack_format(3))
+ array.should == [2.9000000953674316, 1.399999976158142, 8.199999809265137]
+ end
+
+ it "decodes the remaining floats when passed the '*' modifier" do
+ array = "\x9a\x999@33\xb3?33\x03A".unpack(unpack_format("*"))
+ array.should == [2.9000000953674316, 1.399999976158142, 8.199999809265137]
+ end
+
+ it "decodes the remaining floats when passed the '*' modifier after another directive" do
+ array = "\x9a\x99\xa9@33\x13A".unpack(unpack_format()+unpack_format('*'))
+ array.should == [5.300000190734863, 9.199999809265137]
+ end
+
+ it "does not decode a float when fewer bytes than a float remain and the '*' modifier is passed" do
+ [ ["\xff", []],
+ ["\xff\x00", []],
+ ["\xff\x00\xff", []]
+ ].should be_computed_by(:unpack, unpack_format("*"))
+ end
+
+ it "adds nil for each element requested beyond the end of the String" do
+ [ ["abc", [nil, nil, nil]],
+ ["\x8f\xc2\xb5?abc", [1.4199999570846558, nil, nil]],
+ ["\x9a\x999@33\xb3?abc", [2.9000000953674316, 1.399999976158142, nil]]
+ ].should be_computed_by(:unpack, unpack_format(3))
+ end
+
+ it "decodes positive Infinity" do
+ "\x00\x00\x80\x7f".unpack(unpack_format).should == [infinity_value]
+ end
+
+ it "decodes negative Infinity" do
+ "\x00\x00\x80\xff".unpack(unpack_format).should == [-infinity_value]
+ end
+
+ it "decodes NaN" do
+ # mumble mumble NaN mumble https://bugs.ruby-lang.org/issues/5884
+ [nan_value].pack(unpack_format).unpack(unpack_format).first.nan?.should be_true
+ end
+
+ ruby_version_is ""..."3.3" do
+ it "ignores NULL bytes between directives" do
+ suppress_warning do
+ array = "\x9a\x999@33\xb3?".unpack(unpack_format("\000", 2))
+ array.should == [2.9000000953674316, 1.399999976158142]
+ end
+ end
+ end
+
+ ruby_version_is "3.3" do
+ it "raise ArgumentError for NULL bytes between directives" do
+ -> {
+ "\x9a\x999@33\xb3?".unpack(unpack_format("\000", 2))
+ }.should raise_error(ArgumentError, /unknown unpack directive/)
+ end
+ end
+
+ it "ignores spaces between directives" do
+ array = "\x9a\x999@33\xb3?".unpack(unpack_format(' ', 2))
+ array.should == [2.9000000953674316, 1.399999976158142]
+ end
+end
+
+describe :string_unpack_float_be, shared: true do
+ it "decodes one float for a single format character" do
+ "?\xb5\xc2\x8f".unpack(unpack_format).should == [1.4199999570846558]
+ end
+
+ it "decodes a negative float" do
+ "\xc2\x08\xcc\xcd".unpack(unpack_format).should == [-34.200000762939453]
+ end
+
+ it "decodes two floats for two format characters" do
+ array = "@9\x99\x9a?\xb333".unpack(unpack_format(nil, 2))
+ array.should == [2.9000000953674316, 1.399999976158142]
+ end
+
+ it "decodes the number of floats requested by the count modifier" do
+ array = "@9\x99\x9a?\xb333A\x0333".unpack(unpack_format(3))
+ array.should == [2.9000000953674316, 1.399999976158142, 8.199999809265137]
+ end
+
+ it "decodes the remaining floats when passed the '*' modifier" do
+ array = "@9\x99\x9a?\xb333A\x0333".unpack(unpack_format("*"))
+ array.should == [2.9000000953674316, 1.399999976158142, 8.199999809265137]
+ end
+
+ it "decodes the remaining floats when passed the '*' modifier after another directive" do
+ array = "@\xa9\x99\x9aA\x1333".unpack(unpack_format()+unpack_format('*'))
+ array.should == [5.300000190734863, 9.199999809265137]
+ end
+
+ it "does not decode a float when fewer bytes than a float remain and the '*' modifier is passed" do
+ [ ["\xff", []],
+ ["\xff\x00", []],
+ ["\xff\x00\xff", []]
+ ].should be_computed_by(:unpack, unpack_format("*"))
+ end
+
+ it "adds nil for each element requested beyond the end of the String" do
+ [ ["abc", [nil, nil, nil]],
+ ["?\xb5\xc2\x8fabc", [1.4199999570846558, nil, nil]],
+ ["@9\x99\x9a?\xb333abc", [2.9000000953674316, 1.399999976158142, nil]]
+ ].should be_computed_by(:unpack, unpack_format(3))
+ end
+
+ it "decodes positive Infinity" do
+ "\x7f\x80\x00\x00".unpack(unpack_format).should == [infinity_value]
+ end
+
+ it "decodes negative Infinity" do
+ "\xff\x80\x00\x00".unpack(unpack_format).should == [-infinity_value]
+ end
+
+ it "decodes NaN" do
+ # mumble mumble NaN mumble https://bugs.ruby-lang.org/issues/5884
+ [nan_value].pack(unpack_format).unpack(unpack_format).first.nan?.should be_true
+ end
+
+ ruby_version_is ""..."3.3" do
+ it "ignores NULL bytes between directives" do
+ suppress_warning do
+ array = "@9\x99\x9a?\xb333".unpack(unpack_format("\000", 2))
+ array.should == [2.9000000953674316, 1.399999976158142]
+ end
+ end
+ end
+
+ ruby_version_is "3.3" do
+ it "raise ArgumentError for NULL bytes between directives" do
+ -> {
+ "@9\x99\x9a?\xb333".unpack(unpack_format("\000", 2))
+ }.should raise_error(ArgumentError, /unknown unpack directive/)
+ end
+ end
+
+ it "ignores spaces between directives" do
+ array = "@9\x99\x9a?\xb333".unpack(unpack_format(' ', 2))
+ array.should == [2.9000000953674316, 1.399999976158142]
+ end
+end
+
+describe :string_unpack_double_le, shared: true do
+ it "decodes one double for a single format character" do
+ "\xb8\x1e\x85\xebQ\xb8\xf6?".unpack(unpack_format).should == [1.42]
+ end
+
+ it "decodes a negative double" do
+ "\x9a\x99\x99\x99\x99\x19A\xc0".unpack(unpack_format).should == [-34.2]
+ end
+
+ it "decodes two doubles for two format characters" do
+ "333333\x07@ffffff\xf6?".unpack(unpack_format(nil, 2)).should == [2.9, 1.4]
+ end
+
+ it "decodes the number of doubles requested by the count modifier" do
+ array = "333333\x07@ffffff\xf6?ffffff\x20@".unpack(unpack_format(3))
+ array.should == [2.9, 1.4, 8.2]
+ end
+
+ it "decodes the remaining doubles when passed the '*' modifier" do
+ array = "333333\x07@ffffff\xf6?ffffff\x20@".unpack(unpack_format("*"))
+ array.should == [2.9, 1.4, 8.2]
+ end
+
+ it "decodes the remaining doubles when passed the '*' modifier after another directive" do
+ array = "333333\x15@ffffff\x22@".unpack(unpack_format()+unpack_format('*'))
+ array.should == [5.3, 9.2]
+ end
+
+ it "does not decode a double when fewer bytes than a double remain and the '*' modifier is passed" do
+ [ ["\xff", []],
+ ["\xff\x00", []],
+ ["\xff\x00\xff", []],
+ ["\xff\x00\xff\x00", []],
+ ["\xff\x00\xff\x00\xff", []],
+ ["\xff\x00\xff\x00\xff\x00", []],
+ ["\xff\x00\xff\x00\xff\x00\xff", []]
+ ].should be_computed_by(:unpack, unpack_format("*"))
+ end
+
+ it "adds nil for each element requested beyond the end of the String" do
+ [ ["\xff\x00\xff\x00\xff\x00\xff", [nil, nil, nil]],
+ ["\xb8\x1e\x85\xebQ\xb8\xf6?abc", [1.42, nil, nil]],
+ ["333333\x07@ffffff\xf6?abcd", [2.9, 1.4, nil]]
+ ].should be_computed_by(:unpack, unpack_format(3))
+ end
+
+ it "decodes positive Infinity" do
+ "\x00\x00\x00\x00\x00\x00\xf0\x7f".unpack(unpack_format).should == [infinity_value]
+ end
+
+ it "decodes negative Infinity" do
+ "\x00\x00\x00\x00\x00\x00\xf0\xff".unpack(unpack_format).should == [-infinity_value]
+ end
+
+ it "decodes NaN" do
+ # mumble mumble NaN mumble https://bugs.ruby-lang.org/issues/5884
+ [nan_value].pack(unpack_format).unpack(unpack_format).first.nan?.should be_true
+ end
+
+ ruby_version_is ""..."3.3" do
+ it "ignores NULL bytes between directives" do
+ suppress_warning do
+ "333333\x07@ffffff\xf6?".unpack(unpack_format("\000", 2)).should == [2.9, 1.4]
+ end
+ end
+ end
+
+ ruby_version_is "3.3" do
+ it "raise ArgumentError for NULL bytes between directives" do
+ -> {
+ "333333\x07@ffffff\xf6?".unpack(unpack_format("\000", 2))
+ }.should raise_error(ArgumentError, /unknown unpack directive/)
+ end
+ end
+
+ it "ignores spaces between directives" do
+ "333333\x07@ffffff\xf6?".unpack(unpack_format(' ', 2)).should == [2.9, 1.4]
+ end
+end
+
+describe :string_unpack_double_be, shared: true do
+ it "decodes one double for a single format character" do
+ "?\xf6\xb8Q\xeb\x85\x1e\xb8".unpack(unpack_format).should == [1.42]
+ end
+
+ it "decodes a negative double" do
+ "\xc0A\x19\x99\x99\x99\x99\x9a".unpack(unpack_format).should == [-34.2]
+ end
+
+ it "decodes two doubles for two format characters" do
+ "@\x07333333?\xf6ffffff".unpack(unpack_format(nil, 2)).should == [2.9, 1.4]
+ end
+
+ it "decodes the number of doubles requested by the count modifier" do
+ array = "@\x07333333?\xf6ffffff@\x20ffffff".unpack(unpack_format(3))
+ array.should == [2.9, 1.4, 8.2]
+ end
+
+ it "decodes the remaining doubles when passed the '*' modifier" do
+ array = "@\x07333333?\xf6ffffff@\x20ffffff".unpack(unpack_format("*"))
+ array.should == [2.9, 1.4, 8.2]
+ end
+
+ it "decodes the remaining doubles when passed the '*' modifier after another directive" do
+ array = "@\x15333333@\x22ffffff".unpack(unpack_format()+unpack_format('*'))
+ array.should == [5.3, 9.2]
+ end
+
+ it "does not decode a double when fewer bytes than a double remain and the '*' modifier is passed" do
+ [ ["\xff", []],
+ ["\xff\x00", []],
+ ["\xff\x00\xff", []],
+ ["\xff\x00\xff\x00", []],
+ ["\xff\x00\xff\x00\xff", []],
+ ["\xff\x00\xff\x00\xff\x00", []],
+ ["\xff\x00\xff\x00\xff\x00\xff", []]
+ ].should be_computed_by(:unpack, unpack_format("*"))
+ end
+
+ it "adds nil for each element requested beyond the end of the String" do
+ [ ["abcdefg", [nil, nil, nil]],
+ ["?\xf6\xb8Q\xeb\x85\x1e\xb8abc", [1.42, nil, nil]],
+ ["@\x07333333?\xf6ffffffabcd", [2.9, 1.4, nil]]
+ ].should be_computed_by(:unpack, unpack_format(3))
+ end
+
+ it "decodes positive Infinity" do
+ "\x7f\xf0\x00\x00\x00\x00\x00\x00".unpack(unpack_format).should == [infinity_value]
+ end
+
+ it "decodes negative Infinity" do
+ "\xff\xf0\x00\x00\x00\x00\x00\x00".unpack(unpack_format).should == [-infinity_value]
+ end
+
+ it "decodes NaN" do
+ # mumble mumble NaN mumble https://bugs.ruby-lang.org/issues/5884
+ [nan_value].pack(unpack_format).unpack(unpack_format).first.nan?.should be_true
+ end
+
+ ruby_version_is ""..."3.3" do
+ it "ignores NULL bytes between directives" do
+ suppress_warning do
+ "@\x07333333?\xf6ffffff".unpack(unpack_format("\000", 2)).should == [2.9, 1.4]
+ end
+ end
+ end
+
+ ruby_version_is "3.3" do
+ it "raise ArgumentError for NULL bytes between directives" do
+ -> {
+ "@\x07333333?\xf6ffffff".unpack(unpack_format("\000", 2))
+ }.should raise_error(ArgumentError, /unknown unpack directive/)
+ end
+ end
+
+ it "ignores spaces between directives" do
+ "@\x07333333?\xf6ffffff".unpack(unpack_format(' ', 2)).should == [2.9, 1.4]
+ end
+end
diff --git a/spec/ruby/core/string/unpack/shared/integer.rb b/spec/ruby/core/string/unpack/shared/integer.rb
new file mode 100644
index 0000000000..d3934753ba
--- /dev/null
+++ b/spec/ruby/core/string/unpack/shared/integer.rb
@@ -0,0 +1,411 @@
+# encoding: binary
+
+describe :string_unpack_16bit_le, shared: true do
+ it "decodes one short for a single format character" do
+ "ab".unpack(unpack_format).should == [25185]
+ end
+
+ it "decodes two shorts for two format characters" do
+ "abcd".unpack(unpack_format(nil, 2)).should == [25185, 25699]
+ end
+
+ it "decodes the number of shorts requested by the count modifier" do
+ "abcdef".unpack(unpack_format(3)).should == [25185, 25699, 26213]
+ end
+
+ it "decodes the remaining shorts when passed the '*' modifier" do
+ "abcd".unpack(unpack_format('*')).should == [25185, 25699]
+ end
+
+ it "decodes the remaining shorts when passed the '*' modifier after another directive" do
+ "abcd".unpack(unpack_format()+unpack_format('*')).should == [25185, 25699]
+ end
+
+ it "does not decode a short when fewer bytes than a short remain and the '*' modifier is passed" do
+ "\xff".unpack(unpack_format('*')).should == []
+ end
+
+ it "adds nil for each element requested beyond the end of the String" do
+ [ ["", [nil, nil, nil]],
+ ["abc", [25185, nil, nil]],
+ ["abcd", [25185, 25699, nil]]
+ ].should be_computed_by(:unpack, unpack_format(3))
+ end
+
+ ruby_version_is ""..."3.3" do
+ it "ignores NULL bytes between directives" do
+ suppress_warning do
+ "abcd".unpack(unpack_format("\000", 2)).should == [25185, 25699]
+ end
+ end
+ end
+
+ ruby_version_is "3.3" do
+ it "raise ArgumentError for NULL bytes between directives" do
+ -> {
+ "abcd".unpack(unpack_format("\000", 2))
+ }.should raise_error(ArgumentError, /unknown unpack directive/)
+ end
+ end
+
+ it "ignores spaces between directives" do
+ "abcd".unpack(unpack_format(' ', 2)).should == [25185, 25699]
+ end
+end
+
+describe :string_unpack_16bit_le_signed, shared: true do
+ it "decodes a short with most significant bit set as a negative number" do
+ "\x00\xff".unpack(unpack_format()).should == [-256]
+ end
+end
+
+describe :string_unpack_16bit_le_unsigned, shared: true do
+ it "decodes a short with most significant bit set as a positive number" do
+ "\x00\xff".unpack(unpack_format()).should == [65280]
+ end
+end
+
+describe :string_unpack_16bit_be, shared: true do
+ it "decodes one short for a single format character" do
+ "ba".unpack(unpack_format).should == [25185]
+ end
+
+ it "decodes two shorts for two format characters" do
+ "badc".unpack(unpack_format(nil, 2)).should == [25185, 25699]
+ end
+
+ it "decodes the number of shorts requested by the count modifier" do
+ "badcfe".unpack(unpack_format(3)).should == [25185, 25699, 26213]
+ end
+
+ it "decodes the remaining shorts when passed the '*' modifier" do
+ "badc".unpack(unpack_format('*')).should == [25185, 25699]
+ end
+
+ it "decodes the remaining shorts when passed the '*' modifier after another directive" do
+ "badc".unpack(unpack_format()+unpack_format('*')).should == [25185, 25699]
+ end
+
+ it "does not decode a short when fewer bytes than a short remain and the '*' modifier is passed" do
+ "\xff".unpack(unpack_format('*')).should == []
+ end
+
+ it "adds nil for each element requested beyond the end of the String" do
+ [ ["", [nil, nil, nil]],
+ ["bac", [25185, nil, nil]],
+ ["badc", [25185, 25699, nil]]
+ ].should be_computed_by(:unpack, unpack_format(3))
+ end
+
+ ruby_version_is ""..."3.3" do
+ it "ignores NULL bytes between directives" do
+ suppress_warning do
+ "badc".unpack(unpack_format("\000", 2)).should == [25185, 25699]
+ end
+ end
+ end
+
+ ruby_version_is "3.3" do
+ it "raise ArgumentError for NULL bytes between directives" do
+ -> {
+ "badc".unpack(unpack_format("\000", 2))
+ }.should raise_error(ArgumentError, /unknown unpack directive/)
+ end
+ end
+
+ it "ignores spaces between directives" do
+ "badc".unpack(unpack_format(' ', 2)).should == [25185, 25699]
+ end
+end
+
+describe :string_unpack_16bit_be_signed, shared: true do
+ it "decodes a short with most significant bit set as a negative number" do
+ "\xff\x00".unpack(unpack_format()).should == [-256]
+ end
+end
+
+describe :string_unpack_16bit_be_unsigned, shared: true do
+ it "decodes a short with most significant bit set as a positive number" do
+ "\xff\x00".unpack(unpack_format()).should == [65280]
+ end
+end
+
+describe :string_unpack_32bit_le, shared: true do
+ it "decodes one int for a single format character" do
+ "abcd".unpack(unpack_format).should == [1684234849]
+ end
+
+ it "decodes two ints for two format characters" do
+ "abghefcd".unpack(unpack_format(nil, 2)).should == [1751605857, 1684235877]
+ end
+
+ it "decodes the number of ints requested by the count modifier" do
+ "abcedfgh".unpack(unpack_format(2)).should == [1701012065, 1751606884]
+ end
+
+ it "decodes the remaining ints when passed the '*' modifier" do
+ "acbdegfh".unpack(unpack_format('*')).should == [1684169569, 1751541605]
+ end
+
+ it "decodes the remaining ints when passed the '*' modifier after another directive" do
+ "abcdefgh".unpack(unpack_format()+unpack_format('*')).should == [1684234849, 1751606885]
+ end
+
+ it "does not decode an int when fewer bytes than an int remain and the '*' modifier is passed" do
+ "abc".unpack(unpack_format('*')).should == []
+ end
+
+ it "adds nil for each element requested beyond the end of the String" do
+ [ ["", [nil, nil, nil]],
+ ["abcde", [1684234849, nil, nil]],
+ ["abcdefg", [1684234849, nil, nil]],
+ ["abcdefgh", [1684234849, 1751606885, nil]]
+ ].should be_computed_by(:unpack, unpack_format(3))
+ end
+
+ ruby_version_is ""..."3.3" do
+ it "ignores NULL bytes between directives" do
+ suppress_warning do
+ "abcdefgh".unpack(unpack_format("\000", 2)).should == [1684234849, 1751606885]
+ end
+ end
+ end
+
+ ruby_version_is "3.3" do
+ it "raise ArgumentError for NULL bytes between directives" do
+ -> {
+ "abcdefgh".unpack(unpack_format("\000", 2))
+ }.should raise_error(ArgumentError, /unknown unpack directive/)
+ end
+ end
+
+ it "ignores spaces between directives" do
+ "abcdefgh".unpack(unpack_format(' ', 2)).should == [1684234849, 1751606885]
+ end
+end
+
+describe :string_unpack_32bit_le_signed, shared: true do
+ it "decodes an int with most significant bit set as a negative number" do
+ "\x00\xaa\x00\xff".unpack(unpack_format()).should == [-16733696]
+ end
+end
+
+describe :string_unpack_32bit_le_unsigned, shared: true do
+ it "decodes an int with most significant bit set as a positive number" do
+ "\x00\xaa\x00\xff".unpack(unpack_format()).should == [4278233600]
+ end
+end
+
+describe :string_unpack_32bit_be, shared: true do
+ it "decodes one int for a single format character" do
+ "dcba".unpack(unpack_format).should == [1684234849]
+ end
+
+ it "decodes two ints for two format characters" do
+ "hgbadcfe".unpack(unpack_format(nil, 2)).should == [1751605857, 1684235877]
+ end
+
+ it "decodes the number of ints requested by the count modifier" do
+ "ecbahgfd".unpack(unpack_format(2)).should == [1701012065, 1751606884]
+ end
+
+ it "decodes the remaining ints when passed the '*' modifier" do
+ "dbcahfge".unpack(unpack_format('*')).should == [1684169569, 1751541605]
+ end
+
+ it "decodes the remaining ints when passed the '*' modifier after another directive" do
+ "dcbahgfe".unpack(unpack_format()+unpack_format('*')).should == [1684234849, 1751606885]
+ end
+
+ it "does not decode an int when fewer bytes than an int remain and the '*' modifier is passed" do
+ "abc".unpack(unpack_format('*')).should == []
+ end
+
+ it "adds nil for each element requested beyond the end of the String" do
+ [ ["", [nil, nil, nil]],
+ ["dcbae", [1684234849, nil, nil]],
+ ["dcbaefg", [1684234849, nil, nil]],
+ ["dcbahgfe", [1684234849, 1751606885, nil]]
+ ].should be_computed_by(:unpack, unpack_format(3))
+ end
+
+ ruby_version_is ""..."3.3" do
+ it "ignores NULL bytes between directives" do
+ suppress_warning do
+ "dcbahgfe".unpack(unpack_format("\000", 2)).should == [1684234849, 1751606885]
+ end
+ end
+ end
+
+ ruby_version_is "3.3" do
+ it "raise ArgumentError for NULL bytes between directives" do
+ -> {
+ "dcbahgfe".unpack(unpack_format("\000", 2))
+ }.should raise_error(ArgumentError, /unknown unpack directive/)
+ end
+ end
+
+ it "ignores spaces between directives" do
+ "dcbahgfe".unpack(unpack_format(' ', 2)).should == [1684234849, 1751606885]
+ end
+end
+
+describe :string_unpack_32bit_be_signed, shared: true do
+ it "decodes an int with most significant bit set as a negative number" do
+ "\xff\x00\xaa\x00".unpack(unpack_format()).should == [-16733696]
+ end
+end
+
+describe :string_unpack_32bit_be_unsigned, shared: true do
+ it "decodes an int with most significant bit set as a positive number" do
+ "\xff\x00\xaa\x00".unpack(unpack_format()).should == [4278233600]
+ end
+end
+
+describe :string_unpack_64bit_le, shared: true do
+ it "decodes one long for a single format character" do
+ "abcdefgh".unpack(unpack_format).should == [7523094288207667809]
+ end
+
+ it "decodes two longs for two format characters" do
+ array = "abghefcdghefabcd".unpack(unpack_format(nil, 2))
+ array.should == [7233738012216484449, 7233733596956420199]
+ end
+
+ it "decodes the number of longs requested by the count modifier" do
+ array = "abcedfghefcdghef".unpack(unpack_format(2))
+ array.should == [7523094283929477729, 7378418357791581797]
+ end
+
+ it "decodes the remaining longs when passed the '*' modifier" do
+ array = "acbdegfhdegfhacb".unpack(unpack_format('*'))
+ array.should == [7522813912742519649, 7089617339433837924]
+ end
+
+ it "decodes the remaining longs when passed the '*' modifier after another directive" do
+ array = "bcahfgedhfgedbca".unpack(unpack_format()+unpack_format('*'))
+ array.should == [7234302065976107874, 7017560827710891624]
+ end
+
+ it "does not decode a long when fewer bytes than a long remain and the '*' modifier is passed" do
+ "abc".unpack(unpack_format('*')).should == []
+ end
+
+ ruby_version_is ""..."3.3" do
+ it "ignores NULL bytes between directives" do
+ suppress_warning do
+ array = "abcdefghabghefcd".unpack(unpack_format("\000", 2))
+ array.should == [7523094288207667809, 7233738012216484449]
+ end
+ end
+ end
+
+ ruby_version_is "3.3" do
+ it "raise ArgumentError for NULL bytes between directives" do
+ -> {
+ "badc".unpack(unpack_format("\000", 2))
+ }.should raise_error(ArgumentError, /unknown unpack directive/)
+ end
+ end
+
+ it "ignores spaces between directives" do
+ array = "abcdefghabghefcd".unpack(unpack_format(' ', 2))
+ array.should == [7523094288207667809, 7233738012216484449]
+ end
+end
+
+describe :string_unpack_64bit_le_extra, shared: true do
+ it "adds nil for each element requested beyond the end of the String" do
+ [ ["", [nil, nil, nil]],
+ ["abcdefgh", [7523094288207667809, nil, nil]],
+ ["abcdefghcdefab", [7523094288207667809, nil, nil]],
+ ["abcdefghcdefabde", [7523094288207667809, 7306072665971057763, nil]]
+ ].should be_computed_by(:unpack, unpack_format(3))
+ end
+end
+
+describe :string_unpack_64bit_le_signed, shared: true do
+ it "decodes a long with most significant bit set as a negative number" do
+ "\x00\xcc\x00\xbb\x00\xaa\x00\xff".unpack(unpack_format()).should == [-71870673923814400]
+ end
+end
+
+describe :string_unpack_64bit_le_unsigned, shared: true do
+ it "decodes a long with most significant bit set as a positive number" do
+ "\x00\xcc\x00\xbb\x00\xaa\x00\xff".unpack(unpack_format()).should == [18374873399785737216]
+ end
+end
+
+describe :string_unpack_64bit_be, shared: true do
+ it "decodes one long for a single format character" do
+ "hgfedcba".unpack(unpack_format).should == [7523094288207667809]
+ end
+
+ it "decodes two longs for two format characters" do
+ array = "dcfehgbadcbafehg".unpack(unpack_format(nil, 2))
+ array.should == [7233738012216484449, 7233733596956420199]
+ end
+
+ it "decodes the number of longs requested by the count modifier" do
+ array = "hgfdecbafehgdcfe".unpack(unpack_format(2))
+ array.should == [7523094283929477729, 7378418357791581797]
+ end
+
+ it "decodes the remaining longs when passed the '*' modifier" do
+ array = "hfgedbcabcahfged".unpack(unpack_format('*'))
+ array.should == [7522813912742519649, 7089617339433837924]
+ end
+
+ it "decodes the remaining longs when passed the '*' modifier after another directive" do
+ array = "degfhacbacbdegfh".unpack(unpack_format()+unpack_format('*'))
+ array.should == [7234302065976107874, 7017560827710891624]
+ end
+
+ it "does not decode a long when fewer bytes than a long remain and the '*' modifier is passed" do
+ "abc".unpack(unpack_format('*')).should == []
+ end
+
+ ruby_version_is ""..."3.3" do
+ it "ignores NULL bytes between directives" do
+ suppress_warning do
+ array = "hgfedcbadcfehgba".unpack(unpack_format("\000", 2))
+ array.should == [7523094288207667809, 7233738012216484449]
+ end
+ end
+ end
+
+ ruby_version_is "3.3" do
+ it "raise ArgumentError for NULL bytes between directives" do
+ -> {
+ "hgfedcbadcfehgba".unpack(unpack_format("\000", 2))
+ }.should raise_error(ArgumentError, /unknown unpack directive/)
+ end
+ end
+
+ it "ignores spaces between directives" do
+ array = "hgfedcbadcfehgba".unpack(unpack_format(' ', 2))
+ array.should == [7523094288207667809, 7233738012216484449]
+ end
+end
+
+describe :string_unpack_64bit_be_extra, shared: true do
+ it "adds nil for each element requested beyond the end of the String" do
+ [ ["", [nil, nil, nil]],
+ ["hgfedcba", [7523094288207667809, nil, nil]],
+ ["hgfedcbacdefab", [7523094288207667809, nil, nil]],
+ ["hgfedcbaedbafedc", [7523094288207667809, 7306072665971057763, nil]]
+ ].should be_computed_by(:unpack, unpack_format(3))
+ end
+end
+
+describe :string_unpack_64bit_be_signed, shared: true do
+ it "decodes a long with most significant bit set as a negative number" do
+ "\xff\x00\xaa\x00\xbb\x00\xcc\x00".unpack(unpack_format()).should == [-71870673923814400]
+ end
+end
+
+describe :string_unpack_64bit_be_unsigned, shared: true do
+ it "decodes a long with most significant bit set as a positive number" do
+ "\xff\x00\xaa\x00\xbb\x00\xcc\x00".unpack(unpack_format()).should == [18374873399785737216]
+ end
+end
diff --git a/spec/ruby/core/string/unpack/shared/string.rb b/spec/ruby/core/string/unpack/shared/string.rb
new file mode 100644
index 0000000000..9d85eedf26
--- /dev/null
+++ b/spec/ruby/core/string/unpack/shared/string.rb
@@ -0,0 +1,51 @@
+describe :string_unpack_string, shared: true do
+ it "returns an empty string if the input is empty" do
+ "".unpack(unpack_format).should == [""]
+ end
+
+ it "returns empty strings for repeated formats if the input is empty" do
+ "".unpack(unpack_format(nil, 3)).should == ["", "", ""]
+ end
+
+ it "returns an empty string and does not decode any bytes when the count modifier is zero" do
+ "abc".unpack(unpack_format(0)+unpack_format).should == ["", "a"]
+ end
+
+ it "implicitly has a count of one when no count is specified" do
+ "abc".unpack(unpack_format).should == ["a"]
+ end
+
+ it "decodes the number of bytes specified by the count modifier" do
+ "abc".unpack(unpack_format(3)).should == ["abc"]
+ end
+
+ it "decodes the number of bytes specified by the count modifier including whitespace bytes" do
+ [ ["a bc", ["a b", "c"]],
+ ["a\fbc", ["a\fb", "c"]],
+ ["a\nbc", ["a\nb", "c"]],
+ ["a\rbc", ["a\rb", "c"]],
+ ["a\tbc", ["a\tb", "c"]],
+ ["a\vbc", ["a\vb", "c"]]
+ ].should be_computed_by(:unpack, unpack_format(3)+unpack_format)
+ end
+
+ it "decodes past whitespace bytes when passed the '*' modifier" do
+ [ ["a b c", ["a b c"]],
+ ["a\fb c", ["a\fb c"]],
+ ["a\nb c", ["a\nb c"]],
+ ["a\rb c", ["a\rb c"]],
+ ["a\tb c", ["a\tb c"]],
+ ["a\vb c", ["a\vb c"]],
+ ].should be_computed_by(:unpack, unpack_format("*"))
+ end
+end
+
+describe :string_unpack_Aa, shared: true do
+ it "decodes the number of bytes specified by the count modifier including NULL bytes" do
+ "a\x00bc".unpack(unpack_format(3)+unpack_format).should == ["a\x00b", "c"]
+ end
+
+ it "decodes past NULL bytes when passed the '*' modifier" do
+ "a\x00b c".unpack(unpack_format("*")).should == ["a\x00b c"]
+ end
+end
diff --git a/spec/ruby/core/string/unpack/shared/taint.rb b/spec/ruby/core/string/unpack/shared/taint.rb
new file mode 100644
index 0000000000..79c7251f01
--- /dev/null
+++ b/spec/ruby/core/string/unpack/shared/taint.rb
@@ -0,0 +1,2 @@
+describe :string_unpack_taint, shared: true do
+end
diff --git a/spec/ruby/core/string/unpack/shared/unicode.rb b/spec/ruby/core/string/unpack/shared/unicode.rb
new file mode 100644
index 0000000000..9fe07f53ae
--- /dev/null
+++ b/spec/ruby/core/string/unpack/shared/unicode.rb
@@ -0,0 +1,72 @@
+# -*- encoding: utf-8 -*-
+
+describe :string_unpack_unicode, shared: true do
+ it "decodes Unicode codepoints as ASCII values" do
+ [ ["\x00", [0]],
+ ["\x01", [1]],
+ ["\x08", [8]],
+ ["\x0f", [15]],
+ ["\x18", [24]],
+ ["\x1f", [31]],
+ ["\x7f", [127]],
+ ["\xc2\x80", [128]],
+ ["\xc2\x81", [129]],
+ ["\xc3\xbf", [255]]
+ ].should be_computed_by(:unpack, "U")
+ end
+
+ it "decodes the number of characters specified by the count modifier" do
+ [ ["\xc2\x80\xc2\x81\xc2\x82\xc2\x83", "U1", [0x80]],
+ ["\xc2\x80\xc2\x81\xc2\x82\xc2\x83", "U2", [0x80, 0x81]],
+ ["\xc2\x80\xc2\x81\xc2\x82\xc2\x83", "U3", [0x80, 0x81, 0x82]]
+ ].should be_computed_by(:unpack)
+ end
+
+ it "implicitly has a count of one when no count modifier is passed" do
+ "\xc2\x80\xc2\x81\xc2\x82\xc2\x83".unpack("U1").should == [0x80]
+ end
+
+ it "decodes all remaining characters when passed the '*' modifier" do
+ "\xc2\x80\xc2\x81\xc2\x82\xc2\x83".unpack("U*").should == [0x80, 0x81, 0x82, 0x83]
+ end
+
+ it "decodes UTF-8 BMP codepoints" do
+ [ ["\xc2\x80", [0x80]],
+ ["\xdf\xbf", [0x7ff]],
+ ["\xe0\xa0\x80", [0x800]],
+ ["\xef\xbf\xbf", [0xffff]]
+ ].should be_computed_by(:unpack, "U")
+ end
+
+ it "decodes UTF-8 max codepoints" do
+ [ ["\xf0\x90\x80\x80", [0x10000]],
+ ["\xf3\xbf\xbf\xbf", [0xfffff]],
+ ["\xf4\x80\x80\x80", [0x100000]],
+ ["\xf4\x8f\xbf\xbf", [0x10ffff]]
+ ].should be_computed_by(:unpack, "U")
+ end
+
+ it "does not decode any items for directives exceeding the input string size" do
+ "\xc2\x80".unpack("UUUU").should == [0x80]
+ end
+
+ ruby_version_is ""..."3.3" do
+ it "ignores NULL bytes between directives" do
+ suppress_warning do
+ "\x01\x02".unpack("U\x00U").should == [1, 2]
+ end
+ end
+ end
+
+ ruby_version_is "3.3" do
+ it "raise ArgumentError for NULL bytes between directives" do
+ -> {
+ "\x01\x02".unpack("U\x00U")
+ }.should raise_error(ArgumentError, /unknown unpack directive/)
+ end
+ end
+
+ it "ignores spaces between directives" do
+ "\x01\x02".unpack("U U").should == [1, 2]
+ end
+end
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-19 23:07:17 +0000