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-rw-r--r--test/ruby/test_integer.rb281
1 files changed, 281 insertions, 0 deletions
diff --git a/test/ruby/test_integer.rb b/test/ruby/test_integer.rb
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+++ b/test/ruby/test_integer.rb
@@ -0,0 +1,281 @@
+# frozen_string_literal: false
+require 'test/unit'
+
+class TestInteger < Test::Unit::TestCase
+ BDSIZE = 0x4000000000000000.coerce(0)[0].size
+ def self.bdsize(x)
+ ((x + 1) / 8 + BDSIZE) / BDSIZE * BDSIZE
+ end
+ def bdsize(x)
+ self.class.bdsize(x)
+ end
+
+ def test_aref
+ # assert_equal(1, (1 << 0x40000000)[0x40000000], "[ruby-dev:31271]")
+ # assert_equal(0, (-1 << 0x40000001)[0x40000000], "[ruby-dev:31271]")
+ big_zero = 0x40000000.coerce(0)[0]
+ assert_equal(0, (-0x40000002)[big_zero], "[ruby-dev:31271]")
+ assert_equal(1, 0x400000001[big_zero], "[ruby-dev:31271]")
+ end
+
+ def test_pow
+ assert_not_equal(0, begin
+ 0**-1
+ rescue
+ nil
+ end, "[ruby-dev:32084] [ruby-dev:34547]")
+ end
+
+ def test_lshift
+ assert_equal(0, 1 << -0x40000000)
+ assert_equal(0, 1 << -0x40000001)
+ assert_equal(0, 1 << -0x80000000)
+ assert_equal(0, 1 << -0x80000001)
+ # assert_equal(bdsize(0x80000000), (1 << 0x80000000).size)
+ end
+
+ def test_rshift
+ # assert_equal(bdsize(0x40000001), (1 >> -0x40000001).size)
+ assert_predicate((1 >> 0x80000000), :zero?)
+ assert_predicate((1 >> 0xffffffff), :zero?)
+ assert_predicate((1 >> 0x100000000), :zero?)
+ # assert_equal((1 << 0x40000000), (1 >> -0x40000000))
+ # assert_equal((1 << 0x40000001), (1 >> -0x40000001))
+ end
+
+ def test_Integer
+ assert_raise(ArgumentError) {Integer("0x-1")}
+ assert_raise(ArgumentError) {Integer("-0x-1")}
+ assert_raise(ArgumentError) {Integer("0x 123")}
+ assert_raise(ArgumentError) {Integer("0x 123")}
+ assert_raise(ArgumentError) {Integer("0x0x5")}
+ assert_raise(ArgumentError) {Integer("0x0x000000005")}
+ assert_nothing_raised(ArgumentError) {
+ assert_equal(1540841, "0x0x5".to_i(36))
+ }
+ assert_raise(ArgumentError) { Integer("--0") }
+ assert_raise(ArgumentError) { Integer("-+0") }
+ assert_raise(ArgumentError) { Integer("++1") }
+ assert_raise(ArgumentError) { Integer("") }
+ assert_raise(ArgumentError) { Integer("10 x") }
+ assert_raise(ArgumentError) { Integer("1__2") }
+ assert_raise(ArgumentError) { Integer("1z") }
+ assert_raise(ArgumentError) { Integer("46116860184273__87904") }
+ assert_raise(ArgumentError) { Integer("4611686018427387904_") }
+ assert_raise(ArgumentError) { Integer("4611686018427387904 :") }
+ assert_equal(0x4000000000000000, Integer("46_11_686_0184273_87904"))
+ assert_raise(ArgumentError) { Integer("\0") }
+ assert_nothing_raised(ArgumentError, "[ruby-core:13873]") {
+ assert_equal(0, Integer("0 "))
+ }
+ assert_nothing_raised(ArgumentError, "[ruby-core:14139]") {
+ assert_equal(0377, Integer("0_3_7_7"))
+ }
+ assert_raise(ArgumentError, "[ruby-core:14139]") {Integer("0__3_7_7")}
+ assert_equal(1234, Integer(1234))
+ assert_equal(1, Integer(1.234))
+
+ # base argument
+ assert_equal(1234, Integer("1234", 10))
+ assert_equal(668, Integer("1234", 8))
+ assert_equal(4660, Integer("1234", 16))
+ assert_equal(49360, Integer("1234", 36))
+ # decimal, not octal
+ assert_equal(1234, Integer("01234", 10))
+ assert_raise(ArgumentError) { Integer("0x123", 10) }
+ assert_raise(ArgumentError) { Integer(1234, 10) }
+ assert_raise(ArgumentError) { Integer(12.34, 10) }
+ assert_raise(ArgumentError) { Integer(Object.new, 1) }
+
+ assert_raise(ArgumentError) { Integer(1, 1, 1) }
+
+ assert_equal(2 ** 50, Integer(2.0 ** 50))
+ assert_raise(TypeError) { Integer(nil) }
+
+ bug6192 = '[ruby-core:43566]'
+ assert_raise(Encoding::CompatibilityError, bug6192) {Integer("0".encode("utf-16be"))}
+ assert_raise(Encoding::CompatibilityError, bug6192) {Integer("0".encode("utf-16le"))}
+ assert_raise(Encoding::CompatibilityError, bug6192) {Integer("0".encode("utf-32be"))}
+ assert_raise(Encoding::CompatibilityError, bug6192) {Integer("0".encode("utf-32le"))}
+ assert_raise(Encoding::CompatibilityError, bug6192) {Integer("0".encode("iso-2022-jp"))}
+ end
+
+ def test_int_p
+ assert_not_predicate(1.0, :integer?)
+ assert_predicate(1, :integer?)
+ end
+
+ def test_odd_p_even_p
+ Fixnum.class_eval do
+ alias odd_bak odd?
+ alias even_bak even?
+ remove_method :odd?, :even?
+ end
+
+ assert_predicate(1, :odd?)
+ assert_not_predicate(2, :odd?)
+ assert_not_predicate(1, :even?)
+ assert_predicate(2, :even?)
+
+ ensure
+ Fixnum.class_eval do
+ alias odd? odd_bak
+ alias even? even_bak
+ remove_method :odd_bak, :even_bak
+ end
+ end
+
+ def test_succ
+ assert_equal(2, 1.send(:succ))
+
+ Fixnum.class_eval do
+ alias succ_bak succ
+ remove_method :succ
+ end
+
+ assert_equal(2, 1.succ)
+ assert_equal(4294967297, 4294967296.succ)
+
+ ensure
+ Fixnum.class_eval do
+ alias succ succ_bak
+ remove_method :succ_bak
+ end
+ end
+
+ def test_chr
+ assert_equal("a", "a".ord.chr)
+ assert_raise(RangeError) { (-1).chr }
+ assert_raise(RangeError) { 0x100.chr }
+ end
+
+ def test_upto
+ a = []
+ 1.upto(3) {|x| a << x }
+ assert_equal([1, 2, 3], a)
+
+ a = []
+ 1.upto(0) {|x| a << x }
+ assert_equal([], a)
+
+ y = 2**30 - 1
+ a = []
+ y.upto(y+2) {|x| a << x }
+ assert_equal([y, y+1, y+2], a)
+ end
+
+ def test_downto
+ a = []
+ -1.downto(-3) {|x| a << x }
+ assert_equal([-1, -2, -3], a)
+
+ a = []
+ 1.downto(2) {|x| a << x }
+ assert_equal([], a)
+
+ y = -(2**30)
+ a = []
+ y.downto(y-2) {|x| a << x }
+ assert_equal([y, y-1, y-2], a)
+ end
+
+ def test_times
+ (2**32).times do |i|
+ break if i == 2
+ end
+ end
+
+ def test_round
+ assert_equal(11111, 11111.round)
+ assert_equal(Fixnum, 11111.round.class)
+ assert_equal(11111, 11111.round(0))
+ assert_equal(Fixnum, 11111.round(0).class)
+
+ assert_equal(11111.0, 11111.round(1))
+ assert_equal(Float, 11111.round(1).class)
+ assert_equal(11111.0, 11111.round(2))
+ assert_equal(Float, 11111.round(2).class)
+
+ assert_equal(11110, 11111.round(-1))
+ assert_equal(Fixnum, 11111.round(-1).class)
+ assert_equal(11100, 11111.round(-2))
+ assert_equal(Fixnum, 11111.round(-2).class)
+
+ assert_equal(1111_1111_1111_1111_1111_1111_1111_1110, 1111_1111_1111_1111_1111_1111_1111_1111.round(-1))
+ assert_equal(Bignum, 1111_1111_1111_1111_1111_1111_1111_1111.round(-1).class)
+ assert_equal(-1111_1111_1111_1111_1111_1111_1111_1110, (-1111_1111_1111_1111_1111_1111_1111_1111).round(-1))
+ assert_equal(Bignum, (-1111_1111_1111_1111_1111_1111_1111_1111).round(-1).class)
+ end
+
+ def test_bitwise_and_with_integer_mimic_object
+ def (obj = Object.new).to_int
+ 10
+ end
+ assert_raise(TypeError, '[ruby-core:39491]') { 3 & obj }
+
+ def obj.coerce(other)
+ [other, 10]
+ end
+ assert_equal(3 & 10, 3 & obj)
+ end
+
+ def test_bitwise_or_with_integer_mimic_object
+ def (obj = Object.new).to_int
+ 10
+ end
+ assert_raise(TypeError, '[ruby-core:39491]') { 3 | obj }
+
+ def obj.coerce(other)
+ [other, 10]
+ end
+ assert_equal(3 | 10, 3 | obj)
+ end
+
+ def test_bitwise_xor_with_integer_mimic_object
+ def (obj = Object.new).to_int
+ 10
+ end
+ assert_raise(TypeError, '[ruby-core:39491]') { 3 ^ obj }
+
+ def obj.coerce(other)
+ [other, 10]
+ end
+ assert_equal(3 ^ 10, 3 ^ obj)
+ end
+
+ def test_bit_length
+ assert_equal(13, (-2**12-1).bit_length)
+ assert_equal(12, (-2**12).bit_length)
+ assert_equal(12, (-2**12+1).bit_length)
+ assert_equal(9, -0x101.bit_length)
+ assert_equal(8, -0x100.bit_length)
+ assert_equal(8, -0xff.bit_length)
+ assert_equal(1, -2.bit_length)
+ assert_equal(0, -1.bit_length)
+ assert_equal(0, 0.bit_length)
+ assert_equal(1, 1.bit_length)
+ assert_equal(8, 0xff.bit_length)
+ assert_equal(9, 0x100.bit_length)
+ assert_equal(9, 0x101.bit_length)
+ assert_equal(12, (2**12-1).bit_length)
+ assert_equal(13, (2**12).bit_length)
+ assert_equal(13, (2**12+1).bit_length)
+
+ assert_equal(10001, (-2**10000-1).bit_length)
+ assert_equal(10000, (-2**10000).bit_length)
+ assert_equal(10000, (-2**10000+1).bit_length)
+ assert_equal(10000, (2**10000-1).bit_length)
+ assert_equal(10001, (2**10000).bit_length)
+ assert_equal(10001, (2**10000+1).bit_length)
+
+ 2.upto(1000) {|i|
+ n = 2**i
+ assert_equal(i+1, (-n-1).bit_length, "(#{-n-1}).bit_length")
+ assert_equal(i, (-n).bit_length, "(#{-n}).bit_length")
+ assert_equal(i, (-n+1).bit_length, "(#{-n+1}).bit_length")
+ assert_equal(i, (n-1).bit_length, "#{n-1}.bit_length")
+ assert_equal(i+1, (n).bit_length, "#{n}.bit_length")
+ assert_equal(i+1, (n+1).bit_length, "#{n+1}.bit_length")
+ }
+ end
+end
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