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require File.expand_path('../../../../spec_helper', __FILE__)
require 'set'
describe "SortedSet#reject!" do
before :each do
@set = SortedSet["one", "two", "three"]
end
it "yields each Object in self in sorted order" do
res = []
@set.reject! { |x| res << x }
res.should == ["one", "two", "three"].sort
end
it "deletes every element from self for which the passed block returns true" do
@set.reject! { |x| x.size == 3 }
@set.size.should eql(1)
@set.should_not include("one")
@set.should_not include("two")
@set.should include("three")
end
it "returns self when self was modified" do
@set.reject! { |x| true }.should equal(@set)
end
it "returns nil when self was not modified" do
@set.reject! { |x| false }.should be_nil
end
it "returns an Enumerator when passed no block" do
enum = @set.reject!
enum.should be_an_instance_of(Enumerator)
enum.each { |x| x.size == 3 }
@set.should_not include("one")
@set.should_not include("two")
@set.should include("three")
end
end
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