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Contents
require "spec_helper"
require "hamster/sorted_set"
describe Hamster::SortedSet do
[:map, :collect].each do |method|
describe "##{method}" do
context "when empty" do
it "returns self" do
SS.empty.send(method) {}.should equal(SS.empty)
end
end
context "when not empty" do
let(:sorted_set) { SS["A", "B", "C"] }
context "with a block" do
it "preserves the original values" do
sorted_set.send(method, &:downcase)
sorted_set.should eql(SS["A", "B", "C"])
end
it "returns a new set with the mapped values" do
sorted_set.send(method, &:downcase).should eql(SS["a", "b", "c"])
end
end
context "with no block" do
it "returns an Enumerator" do
sorted_set.send(method).class.should be(Enumerator)
sorted_set.send(method).each(&:downcase).should == SS['a', 'b', 'c']
end
end
end
context "on a set ordered by a comparator" do
let(:sorted_set) { SS.new(["A", "B", "C"]) { |a,b| b <=> a }}
it "returns a new set with the mapped values" do
sorted_set.send(method, &:downcase).should == ['c', 'b', 'a']
end
end
end
end
end
Version data entries
3 entries across 3 versions & 2 rubygems