1 | ##
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2 | # Struct ISO Test
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3 |
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4 | assert('Struct', '15.2.18') do
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5 | assert_equal Class, Struct.class
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6 | end
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7 |
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8 | assert('Struct.new', '15.2.18.3.1') do
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9 | c = Struct.new(:m1, :m2)
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10 | assert_equal Struct, c.superclass
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11 | assert_equal [:m1, :m2], c.members
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12 | end
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13 |
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14 | assert('Struct#==', '15.2.18.4.1') do
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15 | c = Struct.new(:m1, :m2)
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16 | cc1 = c.new(1,2)
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17 | cc2 = c.new(1,2)
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18 | assert_true cc1 == cc2
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19 |
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20 | Struct.new(:m1, :m2) { def foo; end }
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21 | assert_raise(NoMethodError) { Struct.new(:m1).new.foo }
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22 | end
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23 |
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24 | assert('Struct#[]', '15.2.18.4.2') do
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25 | c = Struct.new(:m1, :m2)
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26 | cc = c.new(1,2)
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27 | assert_equal 1, cc[:m1]
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28 | assert_equal 2, cc["m2"]
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29 | assert_equal 1, cc[0]
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30 | assert_equal 2, cc[-1]
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31 | assert_raise(TypeError) { cc[[]] }
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32 | assert_raise(IndexError) { cc[2] }
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33 | assert_raise(NameError) { cc['tama'] }
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34 | end
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35 |
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36 | assert('Struct#[]=', '15.2.18.4.3') do
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37 | c = Struct.new(:m1, :m2)
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38 | cc = c.new(1,2)
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39 | cc[:m1] = 3
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40 | assert_equal 3, cc[:m1]
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41 | cc["m2"] = 3
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42 | assert_equal 3, cc["m2"]
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43 | cc[0] = 4
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44 | assert_equal 4, cc[0]
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45 | cc[-1] = 5
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46 | assert_equal 5, cc[-1]
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47 | assert_raise(TypeError) { cc[[]] = 3 }
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48 | assert_raise(IndexError) { cc[2] = 7 }
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49 | assert_raise(NameError) { cc['pochi'] = 8 }
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50 | end
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51 |
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52 | assert('Struct#each', '15.2.18.4.4') do
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53 | c = Struct.new(:m1, :m2)
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54 | cc = c.new(1,2)
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55 | a = []
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56 | cc.each{|x|
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57 | a << x
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58 | }
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59 | assert_equal [1, 2], a
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60 | end
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61 |
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62 | assert('Struct#each_pair', '15.2.18.4.5') do
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63 | c = Struct.new(:m1, :m2)
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64 | cc = c.new(1,2)
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65 | a = []
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66 | cc.each_pair{|k,v|
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67 | a << [k,v]
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68 | }
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69 | assert_equal [[:m1, 1], [:m2, 2]], a
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70 | end
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71 |
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72 | assert('Struct#members', '15.2.18.4.6') do
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73 | c = Struct.new(:m1, :m2)
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74 | assert_equal [:m1, :m2], c.new(1,2).members
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75 | end
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76 |
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77 | assert('Struct#select', '15.2.18.4.7') do
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78 | c = Struct.new(:m1, :m2)
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79 | assert_equal([2]) { c.new(1,2).select{|v| v % 2 == 0} }
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80 | end
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81 |
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82 | assert('large struct') do
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83 | c = Struct.new(:m1, :m2, :m3, :m4, :m5, :m6, :m7, :m8, :m9, :m10, :m11, :m12, :m13)
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84 | cc = c.new(1,2,3,4,5,6,7,8,9,10,11,12,13)
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85 | assert_equal 1, cc.m1
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86 | assert_equal 2, cc.m2
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87 | assert_equal 3, cc.m3
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88 | assert_equal 4, cc.m4
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89 | assert_equal 5, cc.m5
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90 | assert_equal 6, cc.m6
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91 | assert_equal 7, cc.m7
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92 | assert_equal 8, cc.m8
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93 | assert_equal 9, cc.m9
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94 | assert_equal 10, cc.m10
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95 | assert_equal 13, cc.m13
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96 |
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97 | cc.m13 = 'test'
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98 | assert_equal 'test', cc.m13
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99 |
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100 | assert_raise(NoMethodError) { cc.m14 }
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101 | end
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102 |
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103 | assert('wrong struct arg count') do
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104 | c = Struct.new(:m1)
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105 | assert_raise ArgumentError do
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106 | cc = c.new(1,2,3)
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107 | end
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108 | end
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109 |
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110 | assert('struct dup') do
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111 | c = Struct.new(:m1, :m2, :m3, :m4, :m5)
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112 | cc = c.new(1,2,3,4,5)
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113 | assert_nothing_raised {
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114 | assert_equal(cc, cc.dup)
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115 | }
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116 | end
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117 |
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118 | assert('struct inspect') do
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119 | c = Struct.new(:m1, :m2, :m3, :m4, :m5, :recur)
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120 | cc = c.new(1,2,3,4,5,nil)
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121 | cc.recur = cc
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122 | assert_equal "#<struct m1=1, m2=2, m3=3, m4=4, m5=5, recur=#<struct #{cc.class}:...>>", cc.inspect
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123 | end
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124 |
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125 | assert('Struct#length, Struct#size') do
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126 | s = Struct.new(:f1, :f2).new(0, 1)
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127 | assert_equal 2, s.size
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128 | assert_equal 2, s.length
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129 | end
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130 |
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131 | assert('Struct#to_a, Struct#values') do
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132 | s = Struct.new(:mem1, :mem2).new('a', 'b')
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133 | assert_equal ['a', 'b'], s.to_a
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134 | assert_equal ['a', 'b'], s.values
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135 | end
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136 |
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137 | assert('Struct#to_h') do
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138 | s = Struct.new(:white, :red, :green).new('ruuko', 'yuzuki', 'hitoe')
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139 | assert_equal(:white => 'ruuko', :red => 'yuzuki', :green => 'hitoe') { s.to_h }
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140 | end
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141 |
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142 | assert('Struct#values_at') do
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143 | a = Struct.new(:blue, :purple).new('aki', 'io')
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144 | assert_equal ['aki'], a.values_at(0)
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145 | assert_equal ['io', 'aki'], a.values_at(1, 0)
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146 | assert_raise(IndexError) { a.values_at 2 }
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147 | end
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148 |
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149 | assert("Struct#dig") do
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150 | a = Struct.new(:blue, :purple).new('aki', Struct.new(:red).new(1))
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151 | assert_equal 'aki', a.dig(:blue)
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152 | assert_equal 1, a.dig(:purple, :red)
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153 | assert_equal 1, a.dig(1, 0)
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154 | end
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155 |
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156 | # TODO: suppress redefining Struct warning during test
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157 | # assert("Struct.new removes existing constant") do
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158 | # begin
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159 | # assert_not_equal Struct.new("Test", :a), Struct.new("Test", :a, :b)
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160 | # ensure
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161 | # Struct.remove_const :Test
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162 | # end
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163 | # end
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164 |
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165 | assert("Struct#initialize_copy requires struct to be the same type") do
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166 | begin
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167 | Struct.new("Test", :a)
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168 | a = Struct::Test.new("a")
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169 | Struct.remove_const :Test
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170 | Struct.new("Test", :a, :b)
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171 | assert_raise(TypeError) do
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172 | a.initialize_copy(Struct::Test.new("a", "b"))
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173 | end
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174 | ensure
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175 | Struct.remove_const :Test
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176 | end
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177 | end
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178 |
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179 | assert("Struct.new does not allow array") do
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180 | assert_raise(TypeError) do
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181 | Struct.new("Test", [:a])
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182 | end
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183 | end
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184 |
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185 | assert("Struct.new does not allow invalid class name") do
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186 | assert_raise(NameError) { Struct.new("Test-", :a) }
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187 | end
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188 |
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189 | assert("Struct.new generates subclass of Struct") do
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190 | begin
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191 | original_struct = Struct
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192 | Struct = String
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193 | assert_equal original_struct, original_struct.new(:foo).superclass
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194 | ensure
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195 | Struct = original_struct
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196 | end
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197 | end
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198 |
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199 | assert 'Struct#freeze' do
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200 | c = Struct.new :m
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201 |
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202 | o = c.new
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203 | o.m = :test
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204 | assert_equal :test, o.m
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205 |
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206 | o.freeze
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207 | assert_raise(FrozenError) { o.m = :modify }
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208 | assert_raise(FrozenError) { o[:m] = :modify }
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209 | assert_equal :test, o.m
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210 | end
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