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path: root/test/transport/hmac/test_sha2_256.rb
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# encoding: ASCII-8BIT

require 'common'
require 'net/ssh/transport/hmac/sha2_256'

module Transport
  module HMAC
    class TestSHA2_256 < NetSSHTest
      def test_expected_digest_class
        assert_equal OpenSSL::Digest::SHA256, subject.digest_class
        assert_equal OpenSSL::Digest::SHA256, subject.new.digest_class
      end

      def test_expected_key_length
        assert_equal 32, subject.key_length
        assert_equal 32, subject.new.key_length
      end

      def test_expected_mac_length
        assert_equal 32, subject.mac_length
        assert_equal 32, subject.new.mac_length
      end

      def test_expected_etm
        assert_equal false, subject.etm
        assert_equal false, subject.new.etm
      end

      def test_expected_digest
        hmac = subject.new("1234567890123456")
        assert_equal "\x16^>\x9FhO}\xB1>(\xBAF\xFBW\xB8\xF2\xFA\x824+\xC0\x94\x95\xC2\r\xE6\x88/\xEF\t\xF5%", hmac.digest("hello world")
      end

      private

      def subject
        Net::SSH::Transport::HMAC::SHA2_256
      end
    end
  end
end