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ruby--ruby/test/ruby/test_numeric.rb
Jeremy Evans 80b5a0ff2a
Make rb_scan_args handle keywords more similar to Ruby methods (#2460) 
Cfuncs that use rb_scan_args with the : entry suffer similar keyword
argument separation issues that Ruby methods suffer if the cfuncs
accept optional or variable arguments.

This makes the following changes to : handling.

* Treats as **kw, prompting keyword argument separation warnings
  if called with a positional hash.

* Do not look for an option hash if empty keywords are provided.
  For backwards compatibility, treat an empty keyword splat as a empty
  mandatory positional hash argument, but emit a a warning, as this
  behavior will be removed in Ruby 3.  The argument number check
  needs to be moved lower so it can correctly handle an empty
  positional argument being added.

* If the last argument is nil and it is necessary to treat it as an option
  hash in order to make sure all arguments are processed, continue to
  treat the last argument as the option hash. Emit a warning in this case,
  as this behavior will be removed in Ruby 3.

* If splitting the keyword hash into two hashes, issue a warning, as we
  will not be splitting hashes in Ruby 3.

* If the keyword argument is required to fill a mandatory positional
  argument, continue to do so, but emit a warning as this behavior will
  be going away in Ruby 3.

* If keyword arguments are provided and the last argument is not a hash,
  that indicates something wrong. This can happen if a cfunc is calling
  rb_scan_args multiple times, and providing arguments that were not
  passed to it from Ruby.  Callers need to switch to the new
  rb_scan_args_kw function, which allows passing of whether keywords
  were provided.

This commit fixes all warnings caused by the changes above.

It switches some function calls to *_kw versions with appropriate
kw_splat flags. If delegating arguments, RB_PASS_CALLED_KEYWORDS
is used.  If creating new arguments, RB_PASS_KEYWORDS is used if
the last argument is a hash to be treated as keywords.

In open_key_args in io.c, use rb_scan_args_kw.
In this case, the arguments provided come from another C
function, not Ruby.  The last argument may or may not be a hash,
so we can't set keyword argument mode.  However, if it is a
hash, we don't want to warn when treating it as keywords.

In Ruby files, make sure to appropriately use keyword splats
or literal keywords when calling Cfuncs that now issue keyword
argument separation warnings through rb_scan_args.  Also, make
sure not to pass nil in place of an option hash.

Work around Kernel#warn warnings due to problems in the Rubygems
override of the method.  There is an open pull request to fix
these issues in Rubygems, but part of the Rubygems tests for
their override fail on ruby-head due to rb_scan_args not
recognizing empty keyword splats, which this commit fixes.

Implementation wise, adding rb_scan_args_kw is kind of a pain,
because rb_scan_args takes a variable number of arguments.
In order to not duplicate all the code, the function internals need
to be split into two functions taking a va_list, and to avoid passing
in a ton of arguments, a single struct argument is used to handle
the variables previously local to the function.
2019-09-25 11:18:49 -07:00

435 lines
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# frozen_string_literal: false
require 'test/unit'
class TestNumeric < Test::Unit::TestCase
def test_coerce
a, b = 1.coerce(2)
assert_kind_of(Integer, a)
assert_kind_of(Integer, b)
a, b = 1.coerce(2.0)
assert_equal(Float, a.class)
assert_equal(Float, b.class)
assert_raise(TypeError) { -Numeric.new }
assert_raise_with_message(TypeError, /can't be coerced into /) {1+:foo}
assert_raise_with_message(TypeError, /can't be coerced into /) {1&:foo}
assert_raise_with_message(TypeError, /can't be coerced into /) {1|:foo}
assert_raise_with_message(TypeError, /can't be coerced into /) {1^:foo}
assert_raise_with_message(TypeError, /:\u{3042}/) {1+:"\u{3042}"}
assert_raise_with_message(TypeError, /:\u{3042}/) {1&:"\u{3042}"}
assert_raise_with_message(TypeError, /:\u{3042}/) {1|:"\u{3042}"}
assert_raise_with_message(TypeError, /:\u{3042}/) {1^:"\u{3042}"}
assert_raise_with_message(TypeError, /:"\\u3042"/) {1+:"\u{3042}"}
assert_raise_with_message(TypeError, /:"\\u3042"/) {1&:"\u{3042}"}
assert_raise_with_message(TypeError, /:"\\u3042"/) {1|:"\u{3042}"}
assert_raise_with_message(TypeError, /:"\\u3042"/) {1^:"\u{3042}"}
assert_raise_with_message(TypeError, /:\u{3044}/) {1+"\u{3044}".to_sym}
assert_raise_with_message(TypeError, /:\u{3044}/) {1&"\u{3044}".to_sym}
assert_raise_with_message(TypeError, /:\u{3044}/) {1|"\u{3044}".to_sym}
assert_raise_with_message(TypeError, /:\u{3044}/) {1^"\u{3044}".to_sym}
bug10711 = '[ruby-core:67405] [Bug #10711]'
exp = "1.2 can't be coerced into Integer"
assert_raise_with_message(TypeError, exp, bug10711) { 1 & 1.2 }
end
def test_dummynumeric
a = Class.new(Numeric) do
def coerce(x); nil; end
end.new
assert_raise(TypeError) { -a }
assert_nil(1 <=> a)
assert_raise(ArgumentError) { 1 <= a }
a = Class.new(Numeric) do
def coerce(x); 1.coerce(x); end
end.new
assert_equal(2, 1 + a)
assert_equal(0, 1 <=> a)
assert_operator(1, :<=, a)
a = Class.new(Numeric) do
def coerce(x); [x, 1]; end
end.new
assert_equal(-1, -a)
a = Class.new(Numeric) do
def coerce(x); raise StandardError, "my error"; end
end.new
assert_raise_with_message(StandardError, "my error") { 1 + a }
assert_raise_with_message(StandardError, "my error") { 1 < a }
a = Class.new(Numeric) do
def coerce(x); :bad_return_value; end
end.new
assert_raise_with_message(TypeError, "coerce must return [x, y]") { 1 + a }
assert_raise_with_message(TypeError, "coerce must return [x, y]") { 1 < a }
end
def test_singleton_method
a = Numeric.new
assert_raise_with_message(TypeError, /foo/) { def a.foo; end }
assert_raise_with_message(TypeError, /\u3042/) { eval("def a.\u3042; end") }
end
def test_dup
a = Numeric.new
assert_same a, a.dup
end
def test_clone
a = Numeric.new
assert_same a, a.clone
assert_raise(ArgumentError) {a.clone(freeze: false)}
c = EnvUtil.labeled_class("\u{1f4a9}", Numeric)
assert_raise_with_message(ArgumentError, /\u{1f4a9}/) do
c.new.clone(freeze: false)
end
end
def test_quo
a = Numeric.new
assert_raise(TypeError) {a.quo(1)}
end
def test_quo_ruby_core_41575
rat = 84.quo(1)
x = Class.new(Numeric) do
define_method(:to_r) { rat }
end.new
assert_equal(2.quo(1), x.quo(42), '[ruby-core:41575]')
end
def test_divmod
=begin
x = Class.new(Numeric) do
def /(x); 42.0; end
def %(x); :mod; end
end.new
assert_equal(42, x.div(1))
assert_equal(:mod, x.modulo(1))
assert_equal([42, :mod], x.divmod(1))
=end
assert_kind_of(Integer, 11.divmod(3.5).first, '[ruby-dev:34006]')
end
def test_real_p
assert_predicate(Numeric.new, :real?)
end
def test_integer_p
assert_not_predicate(Numeric.new, :integer?)
end
def test_abs
a = Class.new(Numeric) do
def -@; :ok; end
def <(x); true; end
end.new
assert_equal(:ok, a.abs)
a = Class.new(Numeric) do
def <(x); false; end
end.new
assert_equal(a, a.abs)
end
def test_zero_p
a = Class.new(Numeric) do
def ==(x); true; end
end.new
assert_predicate(a, :zero?)
end
def test_nonzero_p
a = Class.new(Numeric) do
def zero?; true; end
end.new
assert_nil(a.nonzero?)
a = Class.new(Numeric) do
def zero?; false; end
end.new
assert_equal(a, a.nonzero?)
end
def test_positive_p
a = Class.new(Numeric) do
def >(x); true; end
end.new
assert_predicate(a, :positive?)
a = Class.new(Numeric) do
def >(x); false; end
end.new
assert_not_predicate(a, :positive?)
end
def test_negative_p
a = Class.new(Numeric) do
def <(x); true; end
end.new
assert_predicate(a, :negative?)
a = Class.new(Numeric) do
def <(x); false; end
end.new
assert_not_predicate(a, :negative?)
end
def test_to_int
a = Class.new(Numeric) do
def to_i; :ok; end
end.new
assert_equal(:ok, a.to_int)
end
def test_cmp
a = Numeric.new
assert_equal(0, a <=> a)
assert_nil(a <=> :foo)
end
def test_floor_ceil_round_truncate
a = Class.new(Numeric) do
def to_f; 1.5; end
end.new
assert_equal(1, a.floor)
assert_equal(2, a.ceil)
assert_equal(2, a.round)
assert_equal(1, a.truncate)
a = Class.new(Numeric) do
def to_f; 1.4; end
end.new
assert_equal(1, a.floor)
assert_equal(2, a.ceil)
assert_equal(1, a.round)
assert_equal(1, a.truncate)
a = Class.new(Numeric) do
def to_f; -1.5; end
end.new
assert_equal(-2, a.floor)
assert_equal(-1, a.ceil)
assert_equal(-2, a.round)
assert_equal(-1, a.truncate)
end
def assert_step(expected, (from, *args), inf: false)
kw = args.last.is_a?(Hash) ? args.pop : {}
enum = from.step(*args, **kw)
size = enum.size
xsize = expected.size
if inf
assert_send [size, :infinite?], "step size: +infinity"
assert_send [size, :>, 0], "step size: +infinity"
a = []
from.step(*args, **kw) { |x| a << x; break if a.size == xsize }
assert_equal expected, a, "step"
a = []
enum.each { |x| a << x; break if a.size == xsize }
assert_equal expected, a, "step enumerator"
else
assert_equal expected.size, size, "step size"
a = []
from.step(*args, **kw) { |x| a << x }
assert_equal expected, a, "step"
a = []
enum.each { |x| a << x }
assert_equal expected, a, "step enumerator"
end
end
def test_step
bignum = RbConfig::LIMITS['FIXNUM_MAX'] + 1
assert_raise(ArgumentError) { 1.step(10, 1, 0) { } }
assert_raise(ArgumentError) { 1.step(10, 1, 0).size }
assert_raise(ArgumentError) { 1.step(10, 0) { } }
assert_raise(ArgumentError) { 1.step(10, "1") { } }
assert_raise(ArgumentError) { 1.step(10, "1").size }
assert_raise(TypeError) { 1.step(10, nil) { } }
assert_nothing_raised { 1.step(10, 0).size }
assert_nothing_raised { 1.step(10, nil).size }
assert_nothing_raised { 1.step(by: 0, to: nil) }
assert_nothing_raised { 1.step(by: 0, to: nil).size }
assert_nothing_raised { 1.step(by: 0) }
assert_nothing_raised { 1.step(by: 0).size }
assert_nothing_raised { 1.step(by: nil) }
assert_nothing_raised { 1.step(by: nil).size }
assert_kind_of(Enumerator::ArithmeticSequence, 1.step(10))
assert_kind_of(Enumerator::ArithmeticSequence, 1.step(10, 2))
assert_kind_of(Enumerator::ArithmeticSequence, 1.step(10, by: 2))
assert_kind_of(Enumerator::ArithmeticSequence, 1.step(by: 2))
assert_kind_of(Enumerator::ArithmeticSequence, 1.step(by: 2, to: nil))
assert_kind_of(Enumerator::ArithmeticSequence, 1.step(by: 2, to: 10))
assert_kind_of(Enumerator::ArithmeticSequence, 1.step(by: -1))
bug9811 = '[ruby-dev:48177] [Bug #9811]'
assert_raise(ArgumentError, bug9811) { 1.step(10, foo: nil) {} }
assert_raise(ArgumentError, bug9811) { 1.step(10, foo: nil).size }
assert_raise(ArgumentError, bug9811) { 1.step(10, to: 11) {} }
assert_raise(ArgumentError, bug9811) { 1.step(10, to: 11).size }
assert_raise(ArgumentError, bug9811) { 1.step(10, 1, by: 11) {} }
assert_raise(ArgumentError, bug9811) { 1.step(10, 1, by: 11).size }
assert_equal(bignum*2+1, (-bignum).step(bignum, 1).size)
assert_equal(bignum*2, (-bignum).step(bignum-1, 1).size)
assert_equal(10+1, (0.0).step(10.0, 1.0).size)
i, bigflo = 1, bignum.to_f
i <<= 1 until (bigflo - i).to_i < bignum
bigflo -= i >> 1
assert_equal(bigflo.to_i, (0.0).step(bigflo-1.0, 1.0).size)
assert_step [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], [1, 10]
assert_step [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], [1, to: 10]
assert_step [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], [1, to: 10, by: nil]
assert_step [1, 3, 5, 7, 9], [1, 10, 2]
assert_step [1, 3, 5, 7, 9], [1, to: 10, by: 2]
assert_step [10, 8, 6, 4, 2], [10, 1, -2]
assert_step [10, 8, 6, 4, 2], [10, to: 1, by: -2]
assert_step [1.0, 3.0, 5.0, 7.0, 9.0], [1.0, 10.0, 2.0]
assert_step [1.0, 3.0, 5.0, 7.0, 9.0], [1.0, to: 10.0, by: 2.0]
assert_step [1], [1, 10, bignum]
assert_step [1], [1, to: 10, by: bignum]
assert_step [], [2, 1, 3]
assert_step [], [-2, -1, -3]
assert_step [3, 3, 3, 3], [3, by: 0], inf: true
assert_step [3, 3, 3, 3], [3, by: 0, to: 42], inf: true
assert_step [10], [10, 1, -bignum]
assert_step [], [1, 0, Float::INFINITY]
assert_step [], [0, 1, -Float::INFINITY]
assert_step [10], [10, to: 1, by: -bignum]
assert_step [10, 11, 12, 13], [10], inf: true
assert_step [10, 9, 8, 7], [10, by: -1], inf: true
assert_step [10, 9, 8, 7], [10, by: -1, to: nil], inf: true
assert_step [42, 42, 42, 42], [42, by: 0, to: -Float::INFINITY], inf: true
assert_step [42, 42, 42, 42], [42, by: 0, to: 42.5], inf: true
assert_step [4.2, 4.2, 4.2, 4.2], [4.2, by: 0.0], inf: true
assert_step [4.2, 4.2, 4.2, 4.2], [4.2, by: -0.0], inf: true
assert_step [42.0, 42.0, 42.0, 42.0], [42, by: 0.0, to: 44], inf: true
assert_step [42.0, 42.0, 42.0, 42.0], [42, by: 0.0, to: 0], inf: true
assert_step [42.0, 42.0, 42.0, 42.0], [42, by: -0.0, to: 44], inf: true
assert_step [bignum]*4, [bignum, by: 0], inf: true
assert_step [bignum]*4, [bignum, by: 0.0], inf: true
assert_step [bignum]*4, [bignum, by: 0, to: bignum+1], inf: true
assert_step [bignum]*4, [bignum, by: 0, to: 0], inf: true
end
def test_step_bug15537
assert_step [10.0, 8.0, 6.0, 4.0, 2.0], [10.0, 1, -2]
assert_step [10.0, 8.0, 6.0, 4.0, 2.0], [10.0, to: 1, by: -2]
assert_step [10.0, 8.0, 6.0, 4.0, 2.0], [10.0, 1, -2]
assert_step [10.0, 8.0, 6.0, 4.0, 2.0], [10, to: 1.0, by: -2]
assert_step [10.0, 8.0, 6.0, 4.0, 2.0], [10, 1.0, -2]
assert_step [10.0, 9.0, 8.0, 7.0], [10, by: -1.0], inf: true
assert_step [10.0, 9.0, 8.0, 7.0], [10, by: -1.0, to: nil], inf: true
assert_step [10.0, 9.0, 8.0, 7.0], [10, nil, -1.0], inf: true
assert_step [10.0, 9.0, 8.0, 7.0], [10.0, by: -1], inf: true
assert_step [10.0, 9.0, 8.0, 7.0], [10.0, nil, -1], inf: true
end
def test_num2long
assert_raise(TypeError) { 1 & nil }
assert_raise(TypeError) { 1 & 1.0 }
assert_raise(TypeError) { 1 & 2147483648.0 }
assert_raise(TypeError) { 1 & 9223372036854777856.0 }
o = Object.new
def o.to_int; 1; end
assert_raise(TypeError) { assert_equal(1, 1 & o) }
end
def test_eql
assert_equal(1, 1.0)
assert_not_operator(1, :eql?, 1.0)
assert_not_operator(1, :eql?, 2)
end
def test_coerced_remainder
assert_separately([], <<-'end;')
x = Class.new do
def coerce(a) [self, a]; end
def %(a) self; end
end.new
assert_raise(ArgumentError) {1.remainder(x)}
end;
end
def test_comparison_comparable
bug12864 = '[ruby-core:77713] [Bug #12864]'
myinteger = Class.new do
include Comparable
def initialize(i)
@i = i.to_i
end
attr_reader :i
def <=>(other)
@i <=> (other.is_a?(self.class) ? other.i : other)
end
end
all_assertions(bug12864) do |a|
[5, 2**62, 2**61].each do |i|
a.for("%#x"%i) do
m = myinteger.new(i)
assert_equal(i, m)
assert_equal(m, i)
end
end
end
end
def test_pow
assert_equal(2**3, 2.pow(3))
assert_equal(2**-1, 2.pow(-1))
assert_equal(2**0.5, 2.pow(0.5))
assert_equal((-1)**0.5, -1.pow(0.5))
assert_equal(3**3 % 8, 3.pow(3, 8))
assert_equal(3**3 % -8, 3.pow(3,-8))
assert_equal(3**2 % -2, 3.pow(2,-2))
assert_equal((-3)**3 % 8, -3.pow(3,8))
assert_equal((-3)**3 % -8, -3.pow(3,-8))
assert_equal(5**2 % -8, 5.pow(2,-8))
assert_equal(4481650795473624846969600733813414725093,
2120078484650058507891187874713297895455.
pow(5478118174010360425845660566650432540723,
5263488859030795548286226023720904036518))
assert_equal(12, 12.pow(1, 10000000000), '[Bug #14259]')
assert_equal(12, 12.pow(1, 10000000001), '[Bug #14259]')
assert_equal(12, 12.pow(1, 10000000002), '[Bug #14259]')
assert_equal(17298641040, 12.pow(72387894339363242, 243682743764), '[Bug #14259]')
end
end
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