1 | ##
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2 | # Numeric ISO Test
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3 |
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4 | def assert_step(exp, receiver, args, inf: false)
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5 | act = []
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6 | ret = receiver.step(*args) do |i|
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7 | act << i
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8 | break if inf && exp.size == act.size
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9 | end
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10 | expr = "#{receiver.inspect}.step(#{args.map(&:inspect).join(', ')})"
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11 | assert "assert_step" do
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12 | assert_true(exp.eql?(act), "#{expr}: counters", assertion_diff(exp, act))
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13 | assert_same(receiver, ret, "#{expr}: return value") unless inf
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14 | end
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15 | end
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16 |
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17 | assert('Numeric', '15.2.7') do
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18 | assert_equal(Class, Numeric.class)
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19 | end
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20 |
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21 | assert('Numeric#+@', '15.2.7.4.1') do
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22 | assert_equal(+1, +1)
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23 | end
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24 |
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25 | assert('Numeric#-@', '15.2.7.4.2') do
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26 | assert_equal(-1, -1)
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27 | end
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28 |
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29 | assert('Numeric#abs', '15.2.7.4.3') do
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30 | assert_equal(1, 1.abs)
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31 | skip unless Object.const_defined?(:Float)
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32 | assert_equal(1.0, -1.abs)
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33 | end
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34 |
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35 | assert('Numeric#/', '15.2.8.3.4') do
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36 | n = Class.new(Numeric){ def /(x); 15.1;end }.new
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37 |
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38 | assert_equal(2, 10/5)
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39 | assert_equal(0.0625, 1/16)
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40 | assert_equal(15.1, n/10)
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41 | assert_raise(TypeError){ 1/n }
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42 | assert_raise(TypeError){ 1/nil }
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43 | end
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44 |
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45 | # Not ISO specified
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46 |
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47 | assert('Numeric#**') do
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48 | assert_equal(8, 2 ** 3)
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49 | assert_equal(-8, -2 ** 3)
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50 | assert_equal(1, 2 ** 0)
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51 | skip unless Object.const_defined?(:Float)
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52 | assert_equal(1.0, 2.2 ** 0)
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53 | assert_equal(0.5, 2 ** -1)
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54 | assert_equal(8.0, 2.0**3)
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55 | end
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56 |
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57 | assert('Numeric#step') do
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58 | assert_raise(ArgumentError) { 1.step(2, 0) { break } }
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59 | assert_step([2, 3, 4], 2, [4])
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60 | assert_step([10, 8, 6, 4, 2], 10, [1, -2])
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61 | assert_step([], 2, [1, 3])
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62 | assert_step([], -2, [-1, -3])
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63 | assert_step([10, 11, 12, 13], 10, [], inf: true)
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64 | assert_step([10, 7, 4], 10, [nil, -3], inf: true)
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65 |
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66 | skip unless Object.const_defined?(:Float)
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67 | inf = Float::INFINITY
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68 | assert_raise(ArgumentError) { 1.step(2, 0.0) { break } }
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69 | assert_step([2.0, 3.0, 4.0], 2, [4.0])
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70 | assert_step([7.0, 4.0, 1.0, -2.0], 7, [-4, -3.0])
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71 | assert_step([2.0, 3.0, 4.0], 2.0, [4])
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72 | assert_step([10.0, 11.0, 12.0, 13.0], 10.0, [], inf: true)
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73 | assert_step([10.0, 7.0, 4.0], 10, [nil, -3.0], inf: true)
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74 | assert_step([1.0], 1, [nil, inf])
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75 | assert_step([1.0], 1, [nil, -inf])
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76 | assert_step([1.0], 1, [3, inf])
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77 | assert_step([], 1, [-3, inf])
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78 | assert_step([], 1, [3, -inf])
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79 | assert_step([1.0], 1, [-3, -inf])
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80 | assert_step([1.0], 1, [inf, inf])
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81 | assert_step([], 1, [inf, -inf])
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82 | assert_step([], 1, [-inf, inf])
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83 | assert_step([1.0], 1, [-inf, -inf])
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84 | assert_step([], inf, [2])
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85 | assert_step([], inf, [-2])
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86 | assert_step([], inf, [2, 3])
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87 | assert_step([inf, inf, inf], inf, [2, -3], inf: true)
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88 | assert_step([], inf, [2, inf])
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89 | assert_step([inf], inf, [2, -inf])
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90 | assert_step([], inf, [-2, inf])
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91 | assert_step([inf], inf, [-2, -inf])
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92 | assert_step([], inf, [-2, 3])
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93 | assert_step([inf, inf, inf], inf, [-2, -3], inf: true)
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94 | assert_step([inf], inf, [inf])
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95 | assert_step([], inf, [-inf])
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96 | assert_step([inf], inf, [inf, inf])
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97 | assert_step([inf], inf, [inf, -inf])
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98 | assert_step([inf], inf, [-inf, -inf])
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99 | assert_step([-inf, -inf, -inf], -inf, [2], inf: true)
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100 | assert_step([-inf, -inf, -inf], -inf, [-2], inf: true)
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101 | assert_step([-inf, -inf, -inf], -inf, [2, 3], inf: true)
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102 | assert_step([], -inf, [2, -3])
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103 | assert_step([-inf], -inf, [2, inf])
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104 | assert_step([], -inf, [2, -inf])
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105 | assert_step([-inf], -inf, [-2, inf])
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106 | assert_step([], -inf, [-2, -inf])
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107 | assert_step([-inf, -inf, -inf], -inf, [-2, 3], inf: true)
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108 | assert_step([], -inf, [-2, -3])
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109 | assert_step([-inf, -inf, -inf], -inf, [inf], inf: true)
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110 | assert_step([-inf], -inf, [-inf])
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111 | assert_step([-inf], -inf, [inf, inf])
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112 | assert_step([], -inf, [inf, -inf])
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113 | assert_step([-inf], -inf, [-inf, -inf])
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114 | end
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