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require_relative '../../spec_helper'
require 'set'
describe "Set#join" do
it "returns an empty string if the Set is empty" do
Set[].join.should == ''
end
it "returns a new string formed by joining elements after conversion" do
set = Set[:a, :b, :c]
set.join.should == "abc"
end
it "does not separate elements when the passed separator is nil" do
set = Set[:a, :b, :c]
set.join(nil).should == "abc"
end
it "returns a string formed by concatenating each element separated by the separator" do
set = Set[:a, :b, :c]
set.join(' | ').should == "a | b | c"
end
it "calls #to_a to convert the Set in to an Array" do
set = Set[:a, :b, :c]
set.should_receive(:to_a).and_return([:a, :b, :c])
set.join.should == "abc"
end
end
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