+}
+
+// such an exciting unit test, making sure that a=b; a==b
+BOOST_AUTO_TEST_CASE( seqstring_string_dna_alphabet )
+{
+ SeqString s("AGCT", dna_alphabet);
+
+ BOOST_CHECK_EQUAL(s.get_alphabet_ref(), dna_alphabet);
+ BOOST_CHECK_EQUAL(s.get_alphabet(), Alphabet::dna_alphabet());
+ BOOST_CHECK_EQUAL(s.size(), 4);