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require_relative '../../spec_helper'
require 'set'
describe "Set#initialize" do
it "is private" do
Set.should have_private_instance_method(:initialize)
end
it "adds all elements of the passed Enumerable to self" do
s = Set.new([1, 2, 3])
s.size.should eql(3)
s.should include(1)
s.should include(2)
s.should include(3)
end
it "should initialize with empty array and set" do
s = Set.new([])
s.size.should eql(0)
s = Set.new({})
s.size.should eql(0)
end
it "preprocesses all elements by a passed block before adding to self" do
s = Set.new([1, 2, 3]) { |x| x * x }
s.size.should eql(3)
s.should include(1)
s.should include(4)
s.should include(9)
end
it "should initialize with empty array and block" do
s = Set.new([]) { |x| x * x }
s.size.should eql(0)
end
it "should initialize with empty set and block" do
s = Set.new(Set.new) { |x| x * x }
s.size.should eql(0)
end
it "should initialize with just block" do
s = Set.new { |x| x * x }
s.size.should eql(0)
s.should eql(Set.new)
end
end
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