4 assert('Numeric', '15.2.7') do
5 assert_equal(Class, Numeric.class)
8 assert('Numeric#+@', '15.2.7.4.1') do
12 assert('Numeric#-@', '15.2.7.4.2') do
16 assert('Numeric#abs', '15.2.7.4.3') do
17 assert_equal(1, 1.abs)
18 skip unless Object.const_defined?(:Float)
19 assert_equal(1.0, -1.abs)
22 assert('Numeric#/', '15.2.8.3.4') do
23 n = Class.new(Numeric){ def /(x); 15.1;end }.new
26 assert_equal(0.0625, 1/16)
27 assert_equal(15.1, n/10)
28 assert_raise(TypeError){ 1/n }
29 assert_raise(TypeError){ 1/nil }
34 assert('Numeric#**') do
35 assert_equal(8, 2 ** 3)
36 assert_equal(-8, -2 ** 3)
37 assert_equal(1, 2 ** 0)
38 skip unless Object.const_defined?(:Float)
39 assert_equal(1.0, 2.2 ** 0)
40 assert_equal(0.5, 2 ** -1)
41 assert_equal(8.0, 2.0**3)
44 assert('Numeric#step') do
45 assert_step = ->(exp, receiver, args) do
48 ret = receiver.step(*args) do |i|
50 break if inf && exp.size == act.size
52 expr = "#{receiver.inspect}.step(#{args.map(&:inspect).join(', ')})"
53 assert_true(exp.eql?(act), "#{expr}: counters", assertion_diff(exp, act))
54 assert_same(receiver, ret, "#{expr}: return value") unless inf
57 assert_raise(ArgumentError) { 1.step(2, 0) { break } }
58 assert_step.([2, 3, 4], 2, [4])
59 assert_step.([10, 8, 6, 4, 2], 10, [1, -2])
60 assert_step.([], 2, [1, 3])
61 assert_step.([], -2, [-1, -3])
62 assert_step.([10, 11, 12, 13], 10, [])
63 assert_step.([10, 7, 4], 10, [nil, -3])
65 skip unless Object.const_defined?(:Float)
66 assert_raise(ArgumentError) { 1.step(2, 0.0) { break } }
67 assert_step.([2.0, 3.0, 4.0], 2, [4.0])
68 assert_step.([7.0, 4.0, 1.0, -2.0], 7, [-4, -3.0])
69 assert_step.([2.0, 3.0, 4.0], 2.0, [4])
70 assert_step.([10.0, 11.0, 12.0, 13.0], 10.0, [])
71 assert_step.([10.0, 7.0, 4.0], 10, [nil, -3.0])