[270] | 1 | ##
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| 2 | # Float ISO Test
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| 3 |
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| 4 | assert('Float', '15.2.9') do
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| 5 | assert_equal Class, Float.class
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| 6 | end
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| 7 |
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| 8 | assert('Float#+', '15.2.9.3.1') do
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| 9 | a = 3.123456788 + 0.000000001
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| 10 | b = 3.123456789 + 1
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| 11 |
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| 12 | assert_float(3.123456789, a)
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| 13 | assert_float(4.123456789, b)
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| 14 |
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| 15 | assert_raise(TypeError){ 0.0+nil }
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| 16 | assert_raise(TypeError){ 1.0+nil }
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| 17 | end
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| 18 |
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| 19 | assert('Float#-', '15.2.9.3.2') do
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| 20 | a = 3.123456790 - 0.000000001
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| 21 | b = 5.123456789 - 1
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| 22 |
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| 23 | assert_float(3.123456789, a)
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| 24 | assert_float(4.123456789, b)
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| 25 | end
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| 26 |
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| 27 | assert('Float#*', '15.2.9.3.3') do
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| 28 | a = 3.125 * 3.125
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| 29 | b = 3.125 * 1
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| 30 |
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| 31 | assert_float(9.765625, a)
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| 32 | assert_float(3.125 , b)
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| 33 | end
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| 34 |
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| 35 | assert('Float#/', '15.2.9.3.4') do
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| 36 | a = 3.123456789 / 3.123456789
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| 37 | b = 3.123456789 / 1
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| 38 |
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| 39 | assert_float(1.0 , a)
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| 40 | assert_float(3.123456789, b)
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| 41 | end
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| 42 |
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| 43 | assert('Float#%', '15.2.9.3.5') do
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| 44 | a = 3.125 % 3.125
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| 45 | b = 3.125 % 1
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| 46 |
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| 47 | assert_float(0.0 , a)
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| 48 | assert_float(0.125, b)
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| 49 | end
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| 50 |
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| 51 | assert('Float#<=>', '15.2.9.3.6') do
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| 52 | a = 3.125 <=> 3.123
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| 53 | b = 3.125 <=> 3.125
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| 54 | c = 3.125 <=> 3.126
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| 55 | a2 = 3.125 <=> 3
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| 56 | c2 = 3.125 <=> 4
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| 57 |
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| 58 | assert_equal( 1, a)
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| 59 | assert_equal( 0, b)
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| 60 | assert_equal(-1, c)
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| 61 | assert_equal( 1, a2)
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| 62 | assert_equal(-1, c2)
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| 63 | end
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| 64 |
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| 65 | assert('Float#==', '15.2.9.3.7') do
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| 66 | assert_true 3.1 == 3.1
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| 67 | assert_false 3.1 == 3.2
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| 68 | end
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| 69 |
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| 70 | assert('Float#ceil', '15.2.9.3.8') do
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| 71 | a = 3.123456789.ceil
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| 72 | b = 3.0.ceil
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| 73 | c = -3.123456789.ceil
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| 74 | d = -3.0.ceil
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| 75 |
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| 76 | assert_equal( 4, a)
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| 77 | assert_equal( 3, b)
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| 78 | assert_equal(-3, c)
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| 79 | assert_equal(-3, d)
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| 80 | end
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| 81 |
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| 82 | assert('Float#finite?', '15.2.9.3.9') do
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| 83 | assert_true 3.123456789.finite?
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| 84 | assert_false (1.0 / 0.0).finite?
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| 85 | end
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| 86 |
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| 87 | assert('Float#floor', '15.2.9.3.10') do
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| 88 | a = 3.123456789.floor
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| 89 | b = 3.0.floor
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| 90 | c = -3.123456789.floor
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| 91 | d = -3.0.floor
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| 92 |
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| 93 | assert_equal( 3, a)
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| 94 | assert_equal( 3, b)
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| 95 | assert_equal(-4, c)
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| 96 | assert_equal(-3, d)
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| 97 | end
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| 98 |
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| 99 | assert('Float#infinite?', '15.2.9.3.11') do
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| 100 | a = 3.123456789.infinite?
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| 101 | b = (1.0 / 0.0).infinite?
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| 102 | c = (-1.0 / 0.0).infinite?
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| 103 |
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| 104 | assert_nil a
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| 105 | assert_equal( 1, b)
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| 106 | assert_equal(-1, c)
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| 107 | end
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| 108 |
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| 109 | assert('Float#round', '15.2.9.3.12') do
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| 110 | a = 3.123456789.round
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| 111 | b = 3.5.round
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| 112 | c = 3.4999.round
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| 113 | d = (-3.123456789).round
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| 114 | e = (-3.5).round
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| 115 | f = 12345.67.round(-1)
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| 116 | g = 3.423456789.round(0)
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| 117 | h = 3.423456789.round(1)
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| 118 | i = 3.423456789.round(3)
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| 119 |
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| 120 | assert_equal( 3, a)
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| 121 | assert_equal( 4, b)
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| 122 | assert_equal( 3, c)
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| 123 | assert_equal( -3, d)
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| 124 | assert_equal( -4, e)
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| 125 | assert_equal(12350, f)
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| 126 | assert_equal( 3, g)
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| 127 | assert_float( 3.4, h)
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| 128 | assert_float(3.423, i)
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| 129 |
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| 130 | assert_equal(42.0, 42.0.round(307))
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| 131 | assert_equal(1.0e307, 1.0e307.round(2))
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| 132 |
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| 133 | inf = 1.0/0.0
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| 134 | assert_raise(FloatDomainError){ inf.round }
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| 135 | assert_raise(FloatDomainError){ inf.round(-1) }
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| 136 | assert_equal(inf, inf.round(1))
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| 137 | nan = 0.0/0.0
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| 138 | assert_raise(FloatDomainError){ nan.round }
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| 139 | assert_raise(FloatDomainError){ nan.round(-1) }
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| 140 | assert_true(nan.round(1).nan?)
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| 141 | end
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| 142 |
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| 143 | assert('Float#to_f', '15.2.9.3.13') do
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| 144 | a = 3.123456789
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| 145 |
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| 146 | assert_float(a, a.to_f)
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| 147 | end
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| 148 |
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| 149 | assert('Float#to_i', '15.2.9.3.14') do
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| 150 | assert_equal(3, 3.123456789.to_i)
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| 151 | end
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| 152 |
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| 153 | assert('Float#truncate', '15.2.9.3.15') do
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| 154 | assert_equal( 3, 3.123456789.truncate)
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| 155 | assert_equal(-3, -3.1.truncate)
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| 156 | end
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| 157 |
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| 158 | assert('Float#divmod') do
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| 159 | def check_floats exp, act
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| 160 | assert_float exp[0], act[0]
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| 161 | assert_float exp[1], act[1]
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| 162 | end
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| 163 |
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| 164 | # Note: quotients are Float because mruby does not have Bignum.
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| 165 | check_floats [ 0, 0.0], 0.0.divmod(1)
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| 166 | check_floats [ 0, 1.1], 1.1.divmod(3)
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| 167 | check_floats [ 3, 0.2], 3.2.divmod(1)
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| 168 | check_floats [ 2, 6.3], 20.3.divmod(7)
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| 169 | check_floats [-1, 1.6], -3.4.divmod(5)
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| 170 | check_floats [-2, -0.5], 25.5.divmod(-13)
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| 171 | check_floats [ 1, -6.6], -13.6.divmod(-7)
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| 172 | check_floats [ 3, 0.2], 9.8.divmod(3.2)
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| 173 | end
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| 174 |
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| 175 | assert('Float#nan?') do
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| 176 | assert_true (0.0/0.0).nan?
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| 177 | assert_false 0.0.nan?
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| 178 | assert_false (1.0/0.0).nan?
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| 179 | assert_false (-1.0/0.0).nan?
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| 180 | end
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| 181 |
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| 182 | assert('Float#<<') do
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| 183 | # Left Shift by one
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| 184 | assert_equal 46, 23.0 << 1
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| 185 |
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| 186 | # Left Shift by a negative is Right Shift
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| 187 | assert_equal 23, 46.0 << -1
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| 188 | end
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| 189 |
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| 190 | assert('Float#>>') do
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| 191 | # Right Shift by one
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| 192 | assert_equal 23, 46.0 >> 1
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| 193 |
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| 194 | # Right Shift by a negative is Left Shift
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| 195 | assert_equal 46, 23.0 >> -1
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| 196 |
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| 197 | # Don't raise on large Right Shift
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| 198 | assert_equal 0, 23.0 >> 128
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| 199 |
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| 200 | # Don't raise on large Right Shift
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| 201 | assert_equal(-1, -23.0 >> 128)
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| 202 | end
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