+BOOST_AUTO_TEST_CASE( sequence_reverse_complement_subseq )
+{
+ std::string dna_str("AAAAAAAAAAGGGGGGGGGGG");
+ Sequence seq(dna_str, Sequence::reduced_dna_alphabet);
+ Sequence subseq = seq.subseq(8,4);
+ BOOST_CHECK_EQUAL( subseq, "AAGG");
+ Sequence rev_subseq = subseq.rev_comp();
+ BOOST_CHECK_EQUAL( rev_subseq.size(), subseq.size() );
+ BOOST_CHECK_EQUAL( rev_subseq.get_sequence(), "CCTT");
+}
+
+BOOST_AUTO_TEST_CASE( sequence_reverse_iterator )
+{
+ std::string dna_str("AAAAAAAAAAGGGGGGGGGGG");
+ std::string dna_str_reversed(dna_str.rbegin(), dna_str.rend());
+ Sequence seq(dna_str);
+ std::string seq_reversed(seq.rbegin(), seq.rend());
+ BOOST_CHECK_EQUAL(seq_reversed, dna_str_reversed);
+
+ std::string substr = dna_str.substr(8,4);
+ Sequence subseq = seq.subseq(8,4);
+ BOOST_CHECK_EQUAL(substr, subseq);
+
+ std::string substr_reversed(substr.rbegin(), substr.rend());
+ std::string subseq_reversed(subseq.rbegin(), subseq.rend());
+ BOOST_CHECK_EQUAL(substr_reversed, subseq_reversed);
+}
+
+BOOST_AUTO_TEST_CASE( sequence_empty_reverse_iterator)
+{
+ // so what happens with reverse interators when we have no sequence?
+ Sequence seq1;
+ Sequence seq2;
+ Sequence seq3("AGCT");
+
+ // all the empty sequences should have equal iterators
+ BOOST_CHECK(seq1.rbegin() == seq1.rend());
+ BOOST_CHECK(seq1.rbegin() == seq2.rend());
+
+ // none of the seq1 iterators should equal any of the seq3 iterators
+ BOOST_CHECK(seq1.rbegin() != seq3.rbegin());
+ BOOST_CHECK(seq1.rbegin() != seq3.rend());
+ BOOST_CHECK(seq1.rend() != seq3.rbegin());
+ BOOST_CHECK(seq1.rend() != seq3.rend());
+
+ // seq3 iterators should work
+ BOOST_CHECK(seq3.rbegin() != seq3.rend());
+
+}
+