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##
# Integer ISO Test
assert('Integer', '15.2.8') do
assert_equal Class, Integer.class
end
assert('Integer#+', '15.2.8.3.1') do
a = 1+1
b = 1+1.0
assert_equal 2, a
assert_equal 2.0, b
assert_raise(TypeError){ 0+nil }
assert_raise(TypeError){ 1+nil }
c = Mrbtest::FIXNUM_MAX + 1
d = Mrbtest::FIXNUM_MAX.__send__(:+, 1)
e = Mrbtest::FIXNUM_MAX + 1.0
assert_equal Float, c.class
assert_equal Float, d.class
assert_float e, c
assert_float e, d
end
assert('Integer#-', '15.2.8.3.2') do
a = 2-1
b = 2-1.0
assert_equal 1, a
assert_equal 1.0, b
c = Mrbtest::FIXNUM_MIN - 1
d = Mrbtest::FIXNUM_MIN.__send__(:-, 1)
e = Mrbtest::FIXNUM_MIN - 1.0
assert_equal Float, c.class
assert_equal Float, d.class
assert_float e, c
assert_float e, d
end
assert('Integer#*', '15.2.8.3.3') do
a = 1*1
b = 1*1.0
assert_equal 1, a
assert_equal 1.0, b
assert_raise(TypeError){ 0*nil }
assert_raise(TypeError){ 1*nil }
c = Mrbtest::FIXNUM_MAX * 2
d = Mrbtest::FIXNUM_MAX.__send__(:*, 2)
e = Mrbtest::FIXNUM_MAX * 2.0
assert_equal Float, c.class
assert_equal Float, d.class
assert_float e, c
assert_float e, d
end
assert('Integer#/', '15.2.8.3.4') do
a = 2/1
b = 2/1.0
assert_equal 2, a
assert_equal 2.0, b
end
assert('Integer#%', '15.2.8.3.5') do
a = 1%1
b = 1%1.0
c = 2%4
d = 2%5
e = 2%-5
f = -2%5
g = -2%-5
h = 2%-2
i = -2%2
j = -2%-2
assert_equal 0, a
assert_equal 0.0, b
assert_equal 2, c
assert_equal 2, d
assert_equal(-3, e)
assert_equal 3, f
assert_equal(-2, g)
assert_equal 0, h
assert_equal 0, i
assert_equal 0, j
end
assert('Integer#<=>', '15.2.9.3.6') do
a = 1<=>0
b = 1<=>1
c = 1<=>2
assert_equal 1, a
assert_equal 0, b
assert_equal(-1, c)
end
assert('Integer#==', '15.2.8.3.7') do
a = 1==0
b = 1==1
assert_false a
assert_true b
end
assert('Integer#~', '15.2.8.3.8') do
# Complement
assert_equal(-1, ~0)
assert_equal(-3, ~2)
end
assert('Integer#&', '15.2.8.3.9') do
# Bitwise AND
# 0101 (5)
# & 0011 (3)
# = 0001 (1)
assert_equal 1, 5 & 3
end
assert('Integer#|', '15.2.8.3.10') do
# Bitwise OR
# 0101 (5)
# | 0011 (3)
# = 0111 (7)
assert_equal 7, 5 | 3
end
assert('Integer#^', '15.2.8.3.11') do
# Bitwise XOR
# 0101 (5)
# ^ 0011 (3)
# = 0110 (6)
assert_equal 6, 5 ^ 3
end
assert('Integer#<<', '15.2.8.3.12') do
# Left Shift by one
# 00010111 (23)
# = 00101110 (46)
assert_equal 46, 23 << 1
# Left Shift by a negative is Right Shift
assert_equal 23, 46 << -1
# Left Shift by 31 is bitShift overflow to SignedInt
assert_equal 2147483648, 1 << 31
# -3 Left Shift by 30 is bitShift overflow to SignedInt
assert_equal(-3221225472, -3 << 30)
end
assert('Integer#>>', '15.2.8.3.13') do
# Right Shift by one
# 00101110 (46)
# = 00010111 (23)
assert_equal 23, 46 >> 1
# Right Shift by a negative is Left Shift
assert_equal 46, 23 >> -1
# Don't raise on large Right Shift
assert_equal 0, 23 >> 128
end
assert('Integer#ceil', '15.2.8.3.14') do
assert_equal 10, 10.ceil
end
assert('Integer#downto', '15.2.8.3.15') do
a = 0
3.downto(1) do |i|
a += i
end
assert_equal 6, a
end
assert('Integer#eql?', '15.2.8.3.16') do
a = 1.eql?(1)
b = 1.eql?(2)
c = 1.eql?(nil)
assert_true a
assert_false b
assert_false c
end
assert('Integer#floor', '15.2.8.3.17') do
a = 1.floor
assert_equal 1, a
end
assert('Integer#next', '15.2.8.3.19') do
assert_equal 2, 1.next
end
assert('Integer#round', '15.2.8.3.20') do
assert_equal 1, 1.round
end
assert('Integer#succ', '15.2.8.3.21') do
assert_equal 2, 1.succ
end
assert('Integer#times', '15.2.8.3.22') do
a = 0
3.times do
a += 1
end
assert_equal 3, a
end
assert('Integer#to_f', '15.2.8.3.23') do
assert_equal 1.0, 1.to_f
end
assert('Integer#to_i', '15.2.8.3.24') do
assert_equal 1, 1.to_i
end
assert('Integer#to_s', '15.2.8.3.25') do
assert_equal '1', 1.to_s
assert_equal("-1", -1.to_s)
end
assert('Integer#truncate', '15.2.8.3.26') do
assert_equal 1, 1.truncate
end
assert('Integer#upto', '15.2.8.3.27') do
a = 0
1.upto(3) do |i|
a += i
end
assert_equal 6, a
end
assert('Integer#divmod', '15.2.8.3.30') do
assert_equal [ 0, 0], 0.divmod(1)
assert_equal [ 0, 1], 1.divmod(3)
assert_equal [ 3, 0], 3.divmod(1)
assert_equal [ 2, 6], 20.divmod(7)
assert_equal [-1, 2], -3.divmod(5)
assert_equal [-2, -1], 25.divmod(-13)
assert_equal [ 1, -6], -13.divmod(-7)
end
# Not ISO specified
assert('Integer#step') do
a = []
b = []
1.step(3) do |i|
a << i
end
1.step(6, 2) do |i|
b << i
end
assert_equal [1, 2, 3], a
assert_equal [1, 3, 5], b
end
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