1 | ##
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2 | # Array(Ext) Test
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3 |
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4 | assert("Array#assoc") do
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5 | s1 = [ "colors", "red", "blue", "green" ]
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6 | s2 = [ "letters", "a", "b", "c" ]
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7 | s3 = "foo"
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8 | a = [ s1, s2, s3 ]
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9 |
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10 | assert_equal [ "letters", "a", "b", "c" ], a.assoc("letters")
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11 | assert_nil a.assoc("foo")
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12 | end
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13 |
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14 | assert("Array#at") do
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15 | a = [ "a", "b", "c", "d", "e" ]
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16 | assert_equal "a", a.at(0)
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17 | assert_equal "e", a.at(-1)
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18 | end
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19 |
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20 | assert("Array#rassoc") do
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21 | a = [ [ 1, "one"], [2, "two"], [3, "three"], ["ii", "two"] ]
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22 |
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23 | assert_equal [2, "two"], a.rassoc("two")
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24 | assert_nil a.rassoc("four")
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25 | end
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26 |
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27 | assert("Array#uniq!") do
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28 | a = [1, 2, 3, 1]
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29 | a.uniq!
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30 | assert_equal [1, 2, 3], a
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31 |
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32 | b = [ "a", "b", "c" ]
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33 | assert_nil b.uniq!
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34 |
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35 | c = [["student","sam"], ["student","george"], ["teacher","matz"]]
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36 | assert_equal [["student", "sam"], ["teacher", "matz"]], c.uniq! { |s| s.first }
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37 |
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38 | d = [["student","sam"], ["teacher","matz"]]
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39 | assert_nil d.uniq! { |s| s.first }
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40 | end
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41 |
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42 | assert("Array#uniq") do
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43 | a = [1, 2, 3, 1]
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44 | assert_equal [1, 2, 3], a.uniq
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45 | assert_equal [1, 2, 3, 1], a
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46 |
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47 | b = [["student","sam"], ["student","george"], ["teacher","matz"]]
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48 | assert_equal [["student", "sam"], ["teacher", "matz"]], b.uniq { |s| s.first }
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49 | end
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50 |
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51 | assert("Array#-") do
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52 | a = [1, 2, 3, 1]
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53 | b = [1]
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54 | c = 1
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55 |
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56 | assert_raise(TypeError) { a - c }
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57 | assert_equal [2, 3], (a - b)
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58 | assert_equal [1, 2, 3, 1], a
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59 | end
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60 |
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61 | assert("Array#|") do
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62 | a = [1, 2, 3, 1]
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63 | b = [1, 4]
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64 | c = 1
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65 |
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66 | assert_raise(TypeError) { a | c }
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67 | assert_equal [1, 2, 3, 4], (a | b)
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68 | assert_equal [1, 2, 3, 1], a
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69 | end
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70 |
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71 | assert("Array#&") do
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72 | a = [1, 2, 3, 1]
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73 | b = [1, 4]
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74 | c = 1
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75 |
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76 | assert_raise(TypeError) { a & c }
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77 | assert_equal [1], (a & b)
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78 | assert_equal [1, 2, 3, 1], a
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79 | end
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80 |
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81 | assert("Array#flatten") do
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82 | assert_equal [1, 2, "3", {4=>5}, :'6'], [1, 2, "3", {4=>5}, :'6'].flatten
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83 | assert_equal [1, 2, 3, 4, 5, 6], [1, 2, [3, 4, 5], 6].flatten
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84 | assert_equal [1, 2, 3, 4, 5, 6], [1, 2, [3, [4, 5], 6]].flatten
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85 | assert_equal [1, [2, [3, [4, [5, [6]]]]]], [1, [2, [3, [4, [5, [6]]]]]].flatten(0)
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86 | assert_equal [1, 2, [3, [4, [5, [6]]]]], [1, [2, [3, [4, [5, [6]]]]]].flatten(1)
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87 | assert_equal [1, 2, 3, [4, [5, [6]]]], [1, [2, [3, [4, [5, [6]]]]]].flatten(2)
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88 | assert_equal [1, 2, 3, 4, [5, [6]]], [1, [2, [3, [4, [5, [6]]]]]].flatten(3)
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89 | assert_equal [1, 2, 3, 4, 5, [6]], [1, [2, [3, [4, [5, [6]]]]]].flatten(4)
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90 | assert_equal [1, 2, 3, 4, 5, 6], [1, [2, [3, [4, [5, [6]]]]]].flatten(5)
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91 | end
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92 |
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93 | assert("Array#flatten!") do
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94 | assert_equal [1, 2, 3, 4, 5, 6], [1, 2, [3, [4, 5], 6]].flatten!
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95 | end
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96 |
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97 | assert("Array#compact") do
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98 | a = [1, nil, "2", nil, :t, false, nil]
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99 | assert_equal [1, "2", :t, false], a.compact
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100 | assert_equal [1, nil, "2", nil, :t, false, nil], a
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101 | end
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102 |
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103 | assert("Array#compact!") do
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104 | a = [1, nil, "2", nil, :t, false, nil]
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105 | a.compact!
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106 | assert_equal [1, "2", :t, false], a
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107 | end
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108 |
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109 | assert("Array#fetch") do
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110 | a = [ 11, 22, 33, 44 ]
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111 | assert_equal 22, a.fetch(1)
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112 | assert_equal 44, a.fetch(-1)
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113 | assert_equal 'cat', a.fetch(4, 'cat')
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114 | ret = 0
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115 | a.fetch(100) { |i| ret = i }
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116 | assert_equal 100, ret
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117 | assert_raise(IndexError) { a.fetch(100) }
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118 | end
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119 |
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120 | assert("Array#fill") do
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121 | a = [ "a", "b", "c", "d" ]
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122 | assert_equal ["x", "x", "x", "x"], a.fill("x")
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123 | assert_equal ["x", "x", "x", "w"], a.fill("w", -1)
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124 | assert_equal ["x", "x", "z", "z"], a.fill("z", 2, 2)
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125 | assert_equal ["y", "y", "z", "z"], a.fill("y", 0..1)
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126 | assert_equal [0, 1, 4, 9], a.fill { |i| i*i }
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127 | assert_equal [0, 1, 8, 27], a.fill(-2) { |i| i*i*i }
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128 | assert_equal [0, 2, 3, 27], a.fill(1, 2) { |i| i+1 }
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129 | assert_equal [1, 2, 3, 27], a.fill(0..1) { |i| i+1 }
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130 | assert_raise(ArgumentError) { a.fill }
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131 |
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132 | assert_equal([0, 1, 2, 3, -1, 5], [0, 1, 2, 3, 4, 5].fill(-1, -2, 1))
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133 | assert_equal([0, 1, 2, 3, -1, -1, -1], [0, 1, 2, 3, 4, 5].fill(-1, -2, 3))
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134 | assert_equal([0, 1, 2, -1, -1, 5], [0, 1, 2, 3, 4, 5].fill(-1, 3..4))
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135 | assert_equal([0, 1, 2, -1, 4, 5], [0, 1, 2, 3, 4, 5].fill(-1, 3...4))
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136 | assert_equal([0, 1, -1, -1, -1, 5], [0, 1, 2, 3, 4, 5].fill(-1, 2..-2))
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137 | assert_equal([0, 1, -1, -1, 4, 5], [0, 1, 2, 3, 4, 5].fill(-1, 2...-2))
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138 | assert_equal([0, 1, 2, 13, 14, 5], [0, 1, 2, 3, 4, 5].fill(3..4){|i| i+10})
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139 | assert_equal([0, 1, 2, 13, 4, 5], [0, 1, 2, 3, 4, 5].fill(3...4){|i| i+10})
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140 | assert_equal([0, 1, 12, 13, 14, 5], [0, 1, 2, 3, 4, 5].fill(2..-2){|i| i+10})
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141 | assert_equal([0, 1, 12, 13, 4, 5], [0, 1, 2, 3, 4, 5].fill(2...-2){|i| i+10})
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142 |
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143 | assert_equal [1, 2, 3, 4, 'x', 'x'], [1, 2, 3, 4, 5, 6].fill('x', -2..-1)
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144 | assert_equal [1, 2, 3, 4, 'x', 6], [1, 2, 3, 4, 5, 6].fill('x', -2...-1)
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145 | assert_equal [1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 5, 6].fill('x', -2...-2)
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146 | assert_equal [1, 2, 3, 4, 'x', 6], [1, 2, 3, 4, 5, 6].fill('x', -2..-2)
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147 | assert_equal [1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 5, 6].fill('x', -2..0)
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148 | end
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149 |
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150 | assert("Array#reverse_each") do
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151 | a = [ "a", "b", "c", "d" ]
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152 | b = []
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153 | a.reverse_each do |i|
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154 | b << i
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155 | end
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156 | assert_equal [ "d", "c", "b", "a" ], b
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157 |
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158 | if Object.const_defined?(:Enumerator)
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159 | assert_equal [ "d", "c", "b", "a" ], a.reverse_each.to_a
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160 | else
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161 | true
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162 | end
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163 | end
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164 |
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165 | assert("Array#rotate") do
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166 | a = ["a", "b", "c", "d"]
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167 | assert_equal ["b", "c", "d", "a"], a.rotate
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168 | assert_equal ["a", "b", "c", "d"], a
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169 | assert_equal ["c", "d", "a", "b"], a.rotate(2)
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170 | assert_equal ["b", "c", "d", "a"], a.rotate(-3)
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171 | assert_equal ["c", "d", "a", "b"], a.rotate(10)
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172 | assert_equal [], [].rotate
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173 | end
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174 |
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175 | assert("Array#rotate!") do
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176 | a = ["a", "b", "c", "d"]
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177 | assert_equal ["b", "c", "d", "a"], a.rotate!
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178 | assert_equal ["b", "c", "d", "a"], a
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179 | assert_equal ["d", "a", "b", "c"], a.rotate!(2)
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180 | assert_equal ["a", "b", "c", "d"], a.rotate!(-3)
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181 | assert_equal ["c", "d", "a", "b"], a.rotate(10)
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182 | assert_equal [], [].rotate!
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183 | end
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184 |
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185 | assert("Array#delete_if") do
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186 | a = [1, 2, 3, 4, 5]
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187 | assert_equal [1, 2, 3, 4, 5], a.delete_if { false }
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188 | assert_equal [1, 2, 3, 4, 5], a
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189 |
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190 | a = [1, 2, 3, 4, 5]
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191 | assert_equal [], a.delete_if { true }
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192 | assert_equal [], a
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193 |
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194 | a = [1, 2, 3, 4, 5]
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195 | assert_equal [1, 2, 3], a.delete_if { |i| i > 3 }
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196 | assert_equal [1, 2, 3], a
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197 | end
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198 |
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199 | assert("Array#reject!") do
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200 | a = [1, 2, 3, 4, 5]
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201 | assert_nil a.reject! { false }
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202 | assert_equal [1, 2, 3, 4, 5], a
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203 |
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204 | a = [1, 2, 3, 4, 5]
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205 | assert_equal [], a.reject! { true }
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206 | assert_equal [], a
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207 |
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208 | a = [1, 2, 3, 4, 5]
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209 | assert_equal [1, 2, 3], a.reject! { |val| val > 3 }
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210 | assert_equal [1, 2, 3], a
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211 | end
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212 |
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213 | assert("Array#insert") do
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214 | a = ["a", "b", "c", "d"]
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215 | assert_equal ["a", "b", 99, "c", "d"], a.insert(2, 99)
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216 | assert_equal ["a", "b", 99, "c", 1, 2, 3, "d"], a.insert(-2, 1, 2, 3)
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217 |
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218 | b = ["a", "b", "c", "d"]
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219 | assert_equal ["a", "b", "c", "d", nil, nil, 99], b.insert(6, 99)
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220 | end
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221 |
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222 | assert("Array#bsearch") do
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223 | # Find minimum mode
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224 | a = [0, 4, 7, 10, 12]
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225 | assert_include [4, 7], a.bsearch {|x| x >= 4 }
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226 | assert_equal 7, a.bsearch {|x| x >= 6 }
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227 | assert_equal 0, a.bsearch {|x| x >= -1 }
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228 | assert_nil a.bsearch {|x| x >= 100 }
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229 |
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230 | # Find any mode
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231 | a = [0, 4, 7, 10, 12]
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232 | assert_include [4, 7], a.bsearch {|x| 1 - (x / 4).truncate }
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233 | assert_nil a.bsearch {|x| 4 - (x / 2).truncate }
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234 | assert_equal(nil, a.bsearch {|x| 1 })
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235 | assert_equal(nil, a.bsearch {|x| -1 })
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236 | end
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237 |
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238 | assert("Array#delete_if") do
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239 | a = [1, 2, 3, 4, 5]
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240 | assert_equal [1, 2, 3, 4, 5], a.delete_if { false }
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241 | assert_equal [1, 2, 3, 4, 5], a
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242 |
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243 | a = [1, 2, 3, 4, 5]
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244 | assert_equal [], a.delete_if { true }
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245 | assert_equal [], a
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246 |
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247 | a = [ 1, 2, 3, 4, 5 ]
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248 | assert_equal [1, 2, 3], a.delete_if { |val| val > 3 }
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249 | end
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250 |
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251 | assert("Array#keep_if") do
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252 | a = [1, 2, 3, 4, 5]
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253 | assert_equal [1, 2, 3, 4, 5], a.keep_if { true }
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254 | assert_equal [1, 2, 3, 4, 5], a
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255 |
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256 | a = [1, 2, 3, 4, 5]
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257 | assert_equal [], a.keep_if { false }
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258 | assert_equal [], a
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259 |
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260 | a = [1, 2, 3, 4, 5]
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261 | assert_equal [4, 5], a.keep_if { |val| val > 3 }
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262 | assert_equal [4, 5], a
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263 | end
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264 |
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265 | assert("Array#select!") do
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266 | a = [1, 2, 3, 4, 5]
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267 | assert_nil a.select! { true }
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268 | assert_equal [1, 2, 3, 4, 5], a
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269 |
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270 | a = [1, 2, 3, 4, 5]
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271 | assert_equal [], a.select! { false }
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272 | assert_equal [], a
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273 |
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274 | a = [1, 2, 3, 4, 5]
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275 | assert_equal [4, 5], a.select! { |val| val > 3 }
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276 | assert_equal [4, 5], a
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277 | end
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278 |
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279 | assert('Array#values_at') do
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280 | a = %w{red green purple white none}
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281 |
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282 | assert_equal %w{red purple none}, a.values_at(0, 2, 4)
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283 | assert_equal ['green', 'white', nil, nil], a.values_at(1, 3, 5, 7)
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284 | assert_equal ['none', 'white', 'white', nil], a.values_at(-1, -2, -2, -7)
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285 | assert_equal ['none', nil, nil, 'red', 'green', 'purple'], a.values_at(4..6, 0...3)
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286 | assert_raise(TypeError) { a.values_at 'tt' }
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287 | end
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288 |
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289 | assert('Array#to_h') do
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290 | assert_equal({}, [].to_h)
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291 | assert_equal({a: 1, b:2}, [[:a, 1], [:b, 2]].to_h)
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292 |
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293 | assert_raise(TypeError) { [1].to_h }
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294 | assert_raise(ArgumentError) { [[1]].to_h }
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295 | end
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296 |
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297 | assert("Array#index (block)") do
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298 | assert_nil (1..10).to_a.index { |i| i % 5 == 0 and i % 7 == 0 }
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299 | assert_equal 34, (1..100).to_a.index { |i| i % 5 == 0 and i % 7 == 0 }
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300 | end
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