Wrap SortedSet with ruby_version_is ""..."3.0"

* Using $ spec/mspec/tool/wrap_with_guard.rb 'ruby_version_is ""..."3.0"' spec/ruby/library/set/sortedset/**/*_spec.rb

spec/ruby/library/set/sortedset/add_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../../spec_helper'
-require 'set'
-require_relative 'shared/add'
 
-describe "SortedSet#add" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+  require_relative 'shared/add'
+
+  describe "SortedSet#add" do
     it_behaves_like :sorted_set_add, :add
 
     it "takes only values which responds <=>" do
@@ -16,9 +18,9 @@ describe "SortedSet#add" do
       # Therefore the <=> incompatibility is only noticed on sorting.
       -> { SortedSet['1', '2'].add(3).to_a }.should raise_error(ArgumentError)
     end
-end
+  end
 
-describe "SortedSet#add?" do
+  describe "SortedSet#add?" do
     before :each do
       @set = SortedSet.new
     end
@@ -36,4 +38,5 @@ describe "SortedSet#add?" do
       @set.add?("cat")
       @set.add?("cat").should be_nil
     end
+  end
 end

spec/ruby/library/set/sortedset/append_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../../spec_helper'
-require 'set'
-require_relative 'shared/add'
 
-describe "SortedSet#<<" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+  require_relative 'shared/add'
+
+  describe "SortedSet#<<" do
     it_behaves_like :sorted_set_add, :<<
+  end
 end

spec/ruby/library/set/sortedset/case_equality_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../../spec_helper'
-require_relative 'shared/include'
-require 'set'
 
-describe "SortedSet#===" do
+ruby_version_is ""..."3.0" do
+  require_relative 'shared/include'
+  require 'set'
+
+  describe "SortedSet#===" do
     it_behaves_like :sorted_set_include, :===
+  end
 end

spec/ruby/library/set/sortedset/classify_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#classify" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#classify" do
     before :each do
       @set = SortedSet["one", "two", "three", "four"]
     end
@@ -24,4 +26,5 @@ describe "SortedSet#classify" do
       classified = @set.classify { |x| x.length }
       classified.should == { 3 => SortedSet["one", "two"], 4 => SortedSet["four"], 5 => SortedSet["three"] }
     end
+  end
 end

spec/ruby/library/set/sortedset/clear_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#clear" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#clear" do
     before :each do
       @set = SortedSet["one", "two", "three", "four"]
     end
@@ -14,4 +16,5 @@ describe "SortedSet#clear" do
     it "returns self" do
       @set.clear.should equal(@set)
     end
+  end
 end

spec/ruby/library/set/sortedset/collect_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../../spec_helper'
-require 'set'
-require_relative 'shared/collect'
 
-describe "SortedSet#collect!" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+  require_relative 'shared/collect'
+
+  describe "SortedSet#collect!" do
     it_behaves_like :sorted_set_collect_bang, :collect!
+  end
 end

spec/ruby/library/set/sortedset/constructor_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet[]" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet[]" do
     it "returns a new SortedSet populated with the passed Objects" do
       set = SortedSet[1, 2, 3]
 
@@ -12,4 +14,5 @@ describe "SortedSet[]" do
       set.should include(2)
       set.should include(3)
     end
+  end
 end

spec/ruby/library/set/sortedset/delete_if_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#delete_if" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#delete_if" do
     before :each do
       @set = SortedSet["one", "two", "three"]
     end
@@ -35,4 +37,5 @@ describe "SortedSet#delete_if" do
       @set.should_not include("two")
       @set.should include("three")
     end
+  end
 end

spec/ruby/library/set/sortedset/delete_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#delete" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#delete" do
     before :each do
       @set = SortedSet["a", "b", "c"]
     end
@@ -15,9 +17,9 @@ describe "SortedSet#delete" do
       @set.delete("a").should equal(@set)
       @set.delete("x").should equal(@set)
     end
-end
+  end
 
-describe "SortedSet#delete?" do
+  describe "SortedSet#delete?" do
     before :each do
       @set = SortedSet["a", "b", "c"]
     end
@@ -34,4 +36,5 @@ describe "SortedSet#delete?" do
     it "returns nil when the passed Object is not in self" do
       @set.delete?("x").should be_nil
     end
+  end
 end

spec/ruby/library/set/sortedset/difference_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../../spec_helper'
-require 'set'
-require_relative 'shared/difference'
 
-describe "SortedSet#difference" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+  require_relative 'shared/difference'
+
+  describe "SortedSet#difference" do
     it_behaves_like :sorted_set_difference, :difference
+  end
 end

spec/ruby/library/set/sortedset/divide_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#divide" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#divide" do
     it "divides self into a set of subsets based on the blocks return values" do
       set = SortedSet["one", "two", "three", "four", "five"].divide { |x| x.length }
       set.map { |x| x.to_a }.to_a.sort.should == [["five", "four"], ["one", "two"], ["three"]]
@@ -18,9 +20,9 @@ describe "SortedSet#divide" do
     # it "raises a LocalJumpError when not passed a block" do
     #   lambda { SortedSet[1].divide }.should raise_error(LocalJumpError)
     # end
-end
+  end
 
-describe "SortedSet#divide when passed a block with an arity of 2" do
+  describe "SortedSet#divide when passed a block with an arity of 2" do
     it "divides self into a set of subsets based on the blocks return values" do
       set = SortedSet[1, 3, 4, 6, 9, 10, 11].divide { |x, y| (x - y).abs == 1 }
       set.map { |x| x.to_a }.to_a.sort.should == [[1], [3, 4], [6], [9, 10, 11]]
@@ -31,4 +33,5 @@ describe "SortedSet#divide when passed a block with an arity of 2" do
       SortedSet[1, 2].divide { |x, y| ret << [x, y] }
       ret.should == [[1, 1], [1, 2], [2, 1], [2, 2]]
     end
+  end
 end

spec/ruby/library/set/sortedset/each_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#each" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#each" do
     before :each do
       @set = SortedSet[1, 2, 3]
     end
@@ -23,4 +25,5 @@ describe "SortedSet#each" do
       enum.each { |x| ret << x }
       ret.sort.should == [1, 2, 3]
     end
+  end
 end

spec/ruby/library/set/sortedset/empty_spec.rb

@@ -1,10 +1,13 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#empty?" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#empty?" do
     it "returns true if self is empty" do
       SortedSet[].empty?.should be_true
       SortedSet[1].empty?.should be_false
       SortedSet[1,2,3].empty?.should be_false
     end
+  end
 end

spec/ruby/library/set/sortedset/eql_spec.rb

@@ -1,16 +1,19 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#eql?" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#eql?" do
     it "returns true when the passed argument is a SortedSet and contains the same elements" do
       SortedSet[].should eql(SortedSet[])
       SortedSet[1, 2, 3].should eql(SortedSet[1, 2, 3])
       SortedSet[1, 2, 3].should eql(SortedSet[3, 2, 1])
 
-#    SortedSet["a", :b, ?c].should eql(SortedSet[?c, :b, "a"])
+  #    SortedSet["a", :b, ?c].should eql(SortedSet[?c, :b, "a"])
 
       SortedSet[1, 2, 3].should_not eql(SortedSet[1.0, 2, 3])
       SortedSet[1, 2, 3].should_not eql(SortedSet[2, 3])
       SortedSet[1, 2, 3].should_not eql(SortedSet[])
     end
+  end
 end

spec/ruby/library/set/sortedset/equal_value_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#==" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#==" do
     it "returns true when the passed Object is a SortedSet and self and the Object contain the same elements" do
       SortedSet[].should == SortedSet[]
       SortedSet[1, 2, 3].should == SortedSet[1, 2, 3]
@@ -10,4 +12,5 @@ describe "SortedSet#==" do
       SortedSet[1, 2, 3].should_not == SortedSet[1.0, 2, 3]
       SortedSet[1, 2, 3].should_not == [1, 2, 3]
     end
+  end
 end

spec/ruby/library/set/sortedset/exclusion_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#^" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#^" do
     before :each do
       @set = SortedSet[1, 2, 3, 4]
     end
@@ -15,4 +17,5 @@ describe "SortedSet#^" do
       -> { @set ^ 3 }.should raise_error(ArgumentError)
       -> { @set ^ Object.new }.should raise_error(ArgumentError)
     end
+  end
 end

spec/ruby/library/set/sortedset/filter_spec.rb

@@ -1,9 +1,12 @@
 require_relative '../../../spec_helper'
-require_relative 'shared/select'
-require 'set'
 
-ruby_version_is "2.6" do
+ruby_version_is ""..."3.0" do
+  require_relative 'shared/select'
+  require 'set'
+
+  ruby_version_is "2.6" do
     describe "SortedSet#filter!" do
       it_behaves_like :sorted_set_select_bang, :filter!
     end
+  end
 end

spec/ruby/library/set/sortedset/flatten_merge_spec.rb

@@ -1,8 +1,11 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#flatten_merge" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#flatten_merge" do
     it "is protected" do
       SortedSet.should have_protected_instance_method("flatten_merge")
     end
+  end
 end

spec/ruby/library/set/sortedset/flatten_spec.rb

@@ -1,18 +1,20 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-# Note: Flatten make little sens on sorted sets, because SortedSets are not (by default)
+ruby_version_is ""..."3.0" do
-# comparable. For a SortedSet to be both valid and nested, we need to define a comparison operator:
+  require 'set'
-module SortedSet_FlattenSpecs
+
+  # Note: Flatten make little sens on sorted sets, because SortedSets are not (by default)
+  # comparable. For a SortedSet to be both valid and nested, we need to define a comparison operator:
+  module SortedSet_FlattenSpecs
     class ComparableSortedSet < SortedSet
       def <=>(other)
         return puts "#{other} vs #{self}" unless other.is_a?(ComparableSortedSet)
         to_a <=> other.to_a
       end
     end
-end
+  end
 
-describe "SortedSet#flatten" do
+  describe "SortedSet#flatten" do
     it "returns a copy of self with each included SortedSet flattened" do
       klass = SortedSet_FlattenSpecs::ComparableSortedSet
       set = klass[klass[1,2], klass[3,4], klass[5,6,7], klass[8]]
@@ -21,9 +23,9 @@ describe "SortedSet#flatten" do
       flattened_set.should_not equal(set)
       flattened_set.should == klass[1, 2, 3, 4, 5, 6, 7, 8]
     end
-end
+  end
 
-describe "SortedSet#flatten!" do
+  describe "SortedSet#flatten!" do
     it "flattens self" do
       klass = SortedSet_FlattenSpecs::ComparableSortedSet
       set = klass[klass[1,2], klass[3,4], klass[5,6,7], klass[8]]
@@ -41,4 +43,5 @@ describe "SortedSet#flatten!" do
       set = SortedSet[1, 2, 3, 4]
       set.flatten!.should be_nil
     end
+  end
 end

spec/ruby/library/set/sortedset/hash_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#hash" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#hash" do
     it "is static" do
       SortedSet[].hash.should == SortedSet[].hash
       SortedSet[1, 2, 3].hash.should == SortedSet[1, 2, 3].hash
@@ -10,4 +12,5 @@ describe "SortedSet#hash" do
       SortedSet[].hash.should_not == SortedSet[1, 2, 3].hash
       SortedSet[1, 2, 3].hash.should_not == SortedSet["a", "b", "c"].hash
     end
+  end
 end

spec/ruby/library/set/sortedset/include_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../../spec_helper'
-require_relative 'shared/include'
-require 'set'
 
-describe "SortedSet#include?" do
+ruby_version_is ""..."3.0" do
+  require_relative 'shared/include'
+  require 'set'
+
+  describe "SortedSet#include?" do
     it_behaves_like :sorted_set_include, :include?
+  end
 end

spec/ruby/library/set/sortedset/initialize_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#initialize" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#initialize" do
     it "is private" do
       SortedSet.should have_private_instance_method("initialize")
     end
@@ -27,4 +29,5 @@ describe "SortedSet#initialize" do
       # Therefore the <=> incompatibility is only noticed on sorting.
       -> { SortedSet.new(['00', nil]).to_a }.should raise_error(ArgumentError)
     end
+  end
 end

spec/ruby/library/set/sortedset/inspect_spec.rb

@@ -1,10 +1,13 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#inspect" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#inspect" do
     it "returns a String representation of self" do
       SortedSet[].inspect.should be_kind_of(String)
       SortedSet[1, 2, 3].inspect.should be_kind_of(String)
       SortedSet["1", "2", "3"].inspect.should be_kind_of(String)
     end
+  end
 end

spec/ruby/library/set/sortedset/intersection_spec.rb

@@ -1,11 +1,14 @@
 require_relative '../../../spec_helper'
-require_relative 'shared/intersection'
-require 'set'
 
-describe "SortedSet#intersection" do
+ruby_version_is ""..."3.0" do
+  require_relative 'shared/intersection'
+  require 'set'
+
+  describe "SortedSet#intersection" do
     it_behaves_like :sorted_set_intersection, :intersection
-end
+  end
 
-describe "SortedSet#&" do
+  describe "SortedSet#&" do
     it_behaves_like :sorted_set_intersection, :&
+  end
 end

spec/ruby/library/set/sortedset/keep_if_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#keep_if" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#keep_if" do
     before :each do
       @set = SortedSet["one", "two", "three"]
     end
@@ -28,4 +30,5 @@ describe "SortedSet#keep_if" do
       enum.each { |x| x.size != 3 }
       @set.to_a.should == ["three"]
     end
+  end
 end

spec/ruby/library/set/sortedset/length_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../../spec_helper'
-require_relative 'shared/length'
-require 'set'
 
-describe "SortedSet#length" do
+ruby_version_is ""..."3.0" do
+  require_relative 'shared/length'
+  require 'set'
+
+  describe "SortedSet#length" do
     it_behaves_like :sorted_set_length, :length
+  end
 end

spec/ruby/library/set/sortedset/map_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../../spec_helper'
-require 'set'
-require_relative 'shared/collect'
 
-describe "SortedSet#map!" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+  require_relative 'shared/collect'
+
+  describe "SortedSet#map!" do
     it_behaves_like :sorted_set_collect_bang, :map!
+  end
 end

spec/ruby/library/set/sortedset/member_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../../spec_helper'
-require_relative 'shared/include'
-require 'set'
 
-describe "SortedSet#member?" do
+ruby_version_is ""..."3.0" do
+  require_relative 'shared/include'
+  require 'set'
+
+  describe "SortedSet#member?" do
     it_behaves_like :sorted_set_include, :member?
+  end
 end

spec/ruby/library/set/sortedset/merge_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#merge" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#merge" do
     it "adds the elements of the passed Enumerable to self" do
       SortedSet["a", "b"].merge(SortedSet["b", "c", "d"]).should == SortedSet["a", "b", "c", "d"]
       SortedSet[1, 2].merge([3, 4]).should == SortedSet[1, 2, 3, 4]
@@ -16,4 +18,5 @@ describe "SortedSet#merge" do
       -> { SortedSet[1, 2].merge(1) }.should raise_error(ArgumentError)
       -> { SortedSet[1, 2].merge(Object.new) }.should raise_error(ArgumentError)
     end
+  end
 end

spec/ruby/library/set/sortedset/minus_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../../spec_helper'
-require 'set'
-require_relative 'shared/difference'
 
-describe "SortedSet#-" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+  require_relative 'shared/difference'
+
+  describe "SortedSet#-" do
     it_behaves_like :sorted_set_difference, :-
+  end
 end

spec/ruby/library/set/sortedset/plus_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../../spec_helper'
-require_relative 'shared/union'
-require 'set'
 
-describe "SortedSet#+" do
+ruby_version_is ""..."3.0" do
+  require_relative 'shared/union'
+  require 'set'
+
+  describe "SortedSet#+" do
     it_behaves_like :sorted_set_union, :+
+  end
 end

spec/ruby/library/set/sortedset/pretty_print_cycle_spec.rb

@@ -1,10 +1,13 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#pretty_print_cycle" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#pretty_print_cycle" do
     it "passes the 'pretty print' representation of a self-referencing SortedSet to the pretty print writer" do
       pp = mock("PrettyPrint")
       pp.should_receive(:text).with("#<SortedSet: {...}>")
       SortedSet[1, 2, 3].pretty_print_cycle(pp)
     end
+  end
 end

spec/ruby/library/set/sortedset/pretty_print_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#pretty_print" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#pretty_print" do
     it "passes the 'pretty print' representation of self to the pretty print writer" do
       pp = mock("PrettyPrint")
       set = SortedSet[1, 2, 3]
@@ -14,4 +16,5 @@ describe "SortedSet#pretty_print" do
 
       set.pretty_print(pp)
     end
+  end
 end

spec/ruby/library/set/sortedset/proper_subset_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#proper_subset?" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#proper_subset?" do
     before :each do
       @set = SortedSet[1, 2, 3, 4]
     end
@@ -30,4 +32,5 @@ describe "SortedSet#proper_subset?" do
       -> { SortedSet[].proper_subset?("test") }.should raise_error(ArgumentError)
       -> { SortedSet[].proper_subset?(Object.new) }.should raise_error(ArgumentError)
     end
+  end
 end

spec/ruby/library/set/sortedset/proper_superset_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#proper_superset?" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#proper_superset?" do
     before :each do
       @set = SortedSet[1, 2, 3, 4]
     end
@@ -30,4 +32,5 @@ describe "SortedSet#proper_superset?" do
       -> { SortedSet[].proper_superset?("test") }.should raise_error(ArgumentError)
       -> { SortedSet[].proper_superset?(Object.new) }.should raise_error(ArgumentError)
     end
+  end
 end

spec/ruby/library/set/sortedset/reject_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#reject!" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#reject!" do
     before :each do
       @set = SortedSet["one", "two", "three"]
     end
@@ -39,4 +41,5 @@ describe "SortedSet#reject!" do
       @set.should_not include("two")
       @set.should include("three")
     end
+  end
 end

spec/ruby/library/set/sortedset/replace_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#replace" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#replace" do
     before :each do
       @set = SortedSet["a", "b", "c"]
     end
@@ -14,4 +16,5 @@ describe "SortedSet#replace" do
     it "accepts any enumerable as other" do
       @set.replace([1, 2, 3]).should == SortedSet[1, 2, 3]
     end
+  end
 end

spec/ruby/library/set/sortedset/select_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../../spec_helper'
-require_relative 'shared/select'
-require 'set'
 
-describe "SortedSet#select!" do
+ruby_version_is ""..."3.0" do
+  require_relative 'shared/select'
+  require 'set'
+
+  describe "SortedSet#select!" do
     it_behaves_like :sorted_set_select_bang, :select!
+  end
 end

spec/ruby/library/set/sortedset/size_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../../spec_helper'
-require_relative 'shared/length'
-require 'set'
 
-describe "SortedSet#size" do
+ruby_version_is ""..."3.0" do
+  require_relative 'shared/length'
+  require 'set'
+
+  describe "SortedSet#size" do
     it_behaves_like :sorted_set_length, :size
+  end
 end

spec/ruby/library/set/sortedset/subset_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#subset?" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#subset?" do
     before :each do
       @set = SortedSet[1, 2, 3, 4]
     end
@@ -30,4 +32,5 @@ describe "SortedSet#subset?" do
       -> { SortedSet[].subset?("test") }.should raise_error(ArgumentError)
       -> { SortedSet[].subset?(Object.new) }.should raise_error(ArgumentError)
     end
+  end
 end

spec/ruby/library/set/sortedset/subtract_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#subtract" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#subtract" do
     before :each do
       @set = SortedSet["a", "b", "c"]
     end
@@ -14,4 +16,5 @@ describe "SortedSet#subtract" do
     it "accepts any enumerable as other" do
       @set.subtract(["c"]).should == SortedSet["a", "b"]
     end
+  end
 end

spec/ruby/library/set/sortedset/superset_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#superset?" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#superset?" do
     before :each do
       @set = SortedSet[1, 2, 3, 4]
     end
@@ -30,4 +32,5 @@ describe "SortedSet#superset?" do
       -> { SortedSet[].superset?("test") }.should raise_error(ArgumentError)
       -> { SortedSet[].superset?(Object.new) }.should raise_error(ArgumentError)
     end
+  end
 end

spec/ruby/library/set/sortedset/to_a_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'set'
 
-describe "SortedSet#to_a" do
+ruby_version_is ""..."3.0" do
+  require 'set'
+
+  describe "SortedSet#to_a" do
     it "returns an array containing elements" do
       set = SortedSet.new [1, 2, 3]
       set.to_a.should == [1, 2, 3]
@@ -14,4 +16,5 @@ describe "SortedSet#to_a" do
       set = SortedSet.new [5, 6, 4, 4]
       set.to_a.should == [4, 5, 6]
     end
+  end
 end

spec/ruby/library/set/sortedset/union_spec.rb

@@ -1,11 +1,14 @@
 require_relative '../../../spec_helper'
-require_relative 'shared/union'
-require 'set'
 
-describe "SortedSet#union" do
+ruby_version_is ""..."3.0" do
+  require_relative 'shared/union'
+  require 'set'
+
+  describe "SortedSet#union" do
     it_behaves_like :sorted_set_union, :union
-end
+  end
 
-describe "SortedSet#|" do
+  describe "SortedSet#|" do
     it_behaves_like :sorted_set_union, :|
+  end
 end