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# encoding: utf-8
# frozen_string_literal: true
require 'spec_helper'
require 'mail/multibyte/chars'
describe Mail::Multibyte::Chars do
it "should upcase" do
chars = described_class.new('Laurent, où sont les tests ?')
expect(chars.upcase).to eq("LAURENT, OÙ SONT LES TESTS ?")
end
it "should downcase" do
chars = described_class.new('VĚDA A VÝZKUM')
expect(chars.downcase).to eq("věda a výzkum")
end
if 'string'.respond_to?(:force_encoding)
it "doesn't mutate input string encoding" do
s = 'ascii'.dup.force_encoding(Encoding::US_ASCII)
described_class.new(s)
expect(s.encoding).to eq(Encoding::US_ASCII)
end
end
end
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