1 #include <boost/test/auto_unit_test.hpp>
2 #include <boost/filesystem/path.hpp>
3 #include <boost/filesystem/operations.hpp>
4 namespace fs=boost::filesystem;
10 #include <boost/archive/text_oarchive.hpp>
11 #include <boost/archive/text_iarchive.hpp>
12 #include <boost/archive/xml_oarchive.hpp>
13 #include <boost/archive/xml_iarchive.hpp>
15 #include "alg/sequence.hpp"
16 #include "mussa_exceptions.hpp"
20 //! when we try to load a missing file, do we get an error?
21 BOOST_AUTO_TEST_CASE( sequence_load_exception )
24 // there should be errors when we try to load something that doesn't exist
25 BOOST_CHECK_THROW( s.load_fasta("alkejralk", 1, 0, 0), mussa_load_error);
26 BOOST_CHECK_THROW( s.load_annot("alkejralk", 0, 0), mussa_load_error);
29 BOOST_AUTO_TEST_CASE( sequence_eol_conventions )
31 string header(">Header");
32 string line1("AAAAGGGGCCCCTTTTT");
33 string line2("AAAAGGGGCCCCTTTTT");
34 int seq_len = line1.size() + line2.size();
37 cr << header << "\015" << line1 << "\015" << line2 << "\015";
39 seq_cr.load_fasta(cr);
42 crlf << header << "\015\012" << line1 << "\015\012" << line2 << "\015\012";
44 seq_crlf.load_fasta(crlf);
47 lf << header << "\012" << line1 << "\012" << line2 << "\012";
49 seq_lf.load_fasta(lf);
51 BOOST_CHECK_EQUAL(seq_cr.size(), seq_len);
52 BOOST_CHECK_EQUAL(seq_crlf.size(), seq_len);
53 BOOST_CHECK_EQUAL(seq_cr.size(), seq_len);
57 //! Do simple operations work correctly?
58 BOOST_AUTO_TEST_CASE( sequence_filter )
60 const char *core_seq = "AATTGGCC";
61 Sequence s1(core_seq);
62 BOOST_CHECK_EQUAL(s1, core_seq);
64 Sequence s2("aattggcc");
65 BOOST_CHECK_EQUAL(s2, "AATTGGCC");
66 BOOST_CHECK_EQUAL(s2.rev_comp(), "GGCCAATT");
67 BOOST_CHECK_EQUAL(s2.size(), s2.size());
68 BOOST_CHECK_EQUAL(s2.get_sequence(), core_seq);
71 BOOST_CHECK_EQUAL(s3, "ANNNG");
72 BOOST_CHECK_EQUAL(s3.subseq(0,2), "AN");
74 s3.set_filtered_sequence("AAGGCCTT", 0, 2);
75 BOOST_CHECK_EQUAL(s3, "AA");
76 s3.set_filtered_sequence("AAGGCCTT", 2, 2);
77 BOOST_CHECK_EQUAL( s3, "GG");
78 s3.set_filtered_sequence("AAGGCCTT", 4);
79 BOOST_CHECK_EQUAL( s3, "CCTT");
82 BOOST_CHECK_EQUAL(s3, "AAGGNN");
85 BOOST_AUTO_TEST_CASE( subseq_names )
87 Sequence s1("AAGGCCTT");
88 s1.set_species("species");
89 s1.set_fasta_header("a fasta header");
90 Sequence s2 = s1.subseq(2,2);
91 BOOST_CHECK_EQUAL(s2, "GG");
92 BOOST_CHECK_EQUAL(s2.get_species(), s1.get_species());
93 BOOST_CHECK_EQUAL(s2.get_fasta_header(), s1.get_fasta_header());
96 BOOST_AUTO_TEST_CASE( sequence_start_stop )
99 BOOST_CHECK_EQUAL( s1.start(), 0 );
100 BOOST_CHECK_EQUAL( s1.stop(), 0 );
102 std::string seq_string("AAGGCCTT");
103 Sequence s2(seq_string);
104 BOOST_CHECK_EQUAL( s2.start(), 0 );
105 BOOST_CHECK_EQUAL( s2.stop(), seq_string.size() );
107 std::string s3seq_string = seq_string.substr(2,3);
108 Sequence s3 = s2.subseq(2,3);
109 BOOST_CHECK_EQUAL( s3.start(), 2);
110 BOOST_CHECK_EQUAL( s3.stop(), 2+3);
111 BOOST_CHECK_EQUAL( s3.size(), 3);
112 BOOST_CHECK_EQUAL( s3, s3seq_string);
114 // FIXME: updated for ticket:129
115 // once I have a solution for ticket:129 the commented
116 // out version should work.
117 //std::string s4seq_string = s3seq_string.substr(1,1);
118 std::string s4seq_string = seq_string.substr(1,1);
119 Sequence s4 = s2.subseq(1,1);
120 BOOST_CHECK_EQUAL( s4.start(), 1 );
121 BOOST_CHECK_EQUAL( s4.stop(), 1+1);
122 BOOST_CHECK_EQUAL( s4.size(), 1);
123 BOOST_CHECK_EQUAL( s4, s4seq_string);
126 //! Can we load data from a file
127 BOOST_AUTO_TEST_CASE( sequence_load )
129 fs::path seq_path(fs::path(EXAMPLE_DIR, fs::native)/ "seq");
130 seq_path /= "human_mck_pro.fa";
132 s.load_fasta(seq_path);
133 BOOST_CHECK_EQUAL(s.subseq(0, 5), "GGATC"); // first few chars of fasta file
134 BOOST_CHECK_EQUAL(s.subseq(2, 3), "ATC");
135 BOOST_CHECK_EQUAL(s.get_fasta_header(), "gi|180579|gb|M21487.1|HUMCKMM1 Human "
136 "muscle creatine kinase gene (CKMM), "
140 BOOST_AUTO_TEST_CASE( annotation_load )
142 string annot_data = "human\n"
146 "50\t55 anothername\n"
151 "75\t90\tname2\ttype2\n"
152 "100 120 name-asdf type!@#$%\n"
158 //istringstream annot_stream(annot_data);
159 seq.parse_annot(annot_data, 0, 0);
160 std::list<annot> annots_list = seq.annotations();
161 std::vector<annot> annots(annots_list.begin(), annots_list.end());
162 BOOST_REQUIRE_EQUAL( annots.size(), 8);
163 BOOST_CHECK_EQUAL( annots[0].begin, 0 );
164 BOOST_CHECK_EQUAL( annots[0].end, 10 );
165 BOOST_CHECK_EQUAL( annots[0].type, "type");
166 BOOST_CHECK_EQUAL( annots[0].name, "name");
167 BOOST_CHECK_EQUAL( annots[1].name, "myf7");
168 BOOST_CHECK_EQUAL( annots[2].name, "myod");
169 BOOST_CHECK_EQUAL( annots[3].name, "anothername");
170 BOOST_CHECK_EQUAL( annots[4].name, "backward");
171 BOOST_CHECK_EQUAL( annots[5].name, "name2");
172 BOOST_CHECK_EQUAL( annots[5].end, 90);
173 BOOST_CHECK_EQUAL( annots[6].begin, 100);
174 BOOST_CHECK_EQUAL( annots[6].end, 120);
175 BOOST_CHECK_EQUAL( annots[6].name, "name-asdf");
176 BOOST_CHECK_EQUAL( annots[6].type, "type!@#$%");
177 // sequence defined annotations will always be after the
178 // absolute positions
179 BOOST_CHECK_EQUAL( annots[7].name, "ident3 asdf");
180 BOOST_CHECK_EQUAL( annots[7].begin, 100);
182 //BOOST_CHECK_EQUAL( annots
186 BOOST_AUTO_TEST_CASE(annotation_ucsc_html_load)
188 // this actually is basically what's returned by UCSC
189 // (well actually with some of the sequence and copies of fasta blocks
190 // removed to make the example shorter
191 string annot_data = "\n"
193 ">hg17_knownGene_NM_001824_0 range=chr19:50517919-50517974 5'pad=0 3'pad=0 revComp=TRUE strand=- repeatMasking=none\n"
194 "GGGTCAGTGTCACCTCCAGGATACAGACAG\n"
195 ">hg17_knownGene_NM_001824_3 range=chr19:50510563-50510695 5'pad=0 3'pad=0 revComp=TRUE strand=- repeatMasking=none\n"
196 "GGTGGAGACGACCTGGACCCTAACTACGT\n"
204 "TGGGTCAGTGTCACCTCCAGGATACAGACAGCCCCCCTTCAGCCCAGCCCAGCCAG"
206 "GGTGGAGACGACCTGGACCCTAACTACGTGCTCAGCAGCCGCGTCCGCAC";
208 seq.parse_annot(annot_data);
209 std::list<annot> annots = seq.annotations();
210 BOOST_CHECK_EQUAL( annots.size(), 2);
213 BOOST_AUTO_TEST_CASE( annotation_load_no_species_name )
215 string annot_data = "0 10 name type\n"
218 "50\t55 anothername\n"
223 "75\t90\tname2\ttype2\n"
224 "100 120 name-asdf type!@#$%\n"
230 //istringstream annot_stream(annot_data);
231 seq.parse_annot(annot_data, 0, 0);
232 std::list<annot> annots_list = seq.annotations();
233 std::vector<annot> annots(annots_list.begin(), annots_list.end());
234 BOOST_REQUIRE_EQUAL( annots.size(), 8);
235 BOOST_CHECK_EQUAL( annots[0].begin, 0 );
236 BOOST_CHECK_EQUAL( annots[0].end, 10 );
237 BOOST_CHECK_EQUAL( annots[0].type, "type");
240 // ticket:83 when you try to load a sequence from a file that doesn't
241 // have fasta headers it crashes.
242 BOOST_AUTO_TEST_CASE( sequence_past_end )
244 fs::path seq_path(fs::path(EXAMPLE_DIR, fs::native)/ "seq" );
245 seq_path /= "misformated_seq.fa";
247 BOOST_CHECK_THROW( s.load_fasta(seq_path), mussa_load_error );
250 BOOST_AUTO_TEST_CASE ( sequence_empty )
254 BOOST_CHECK_EQUAL( s.empty(), true );
256 BOOST_CHECK_EQUAL( s.empty(), false );
258 BOOST_CHECK_EQUAL( s.empty(), true);
260 BOOST_CHECK_EQUAL( s.empty(), true);
263 BOOST_AUTO_TEST_CASE ( sequence_size )
267 BOOST_CHECK_EQUAL( s.size(), 0);
268 std::string seq_string("AAAGGG");
270 BOOST_CHECK_EQUAL( s.size(), seq_string.size() );
272 BOOST_CHECK_EQUAL( s.size(), 0);
274 BOOST_CHECK_EQUAL( s.size(), 0);
277 BOOST_AUTO_TEST_CASE( sequence_empty_equality )
280 BOOST_CHECK_EQUAL(szero.empty(), true);
281 BOOST_CHECK_EQUAL(szero, szero);
282 BOOST_CHECK_EQUAL(szero, "");
284 Sequence sclear("AGCT");
286 BOOST_CHECK_EQUAL(sclear.empty(), true);
287 BOOST_CHECK_EQUAL(sclear, sclear);
288 BOOST_CHECK_EQUAL(sclear, szero);
289 BOOST_CHECK_EQUAL(sclear, "");
292 BOOST_AUTO_TEST_CASE ( sequence_iterators )
294 std::string seq_string = "AAGGCCTTNNTATA";
295 Sequence s(seq_string);
296 const Sequence cs(s);
297 std::string::size_type count = 0;
299 std::string::iterator str_itor;
300 Sequence::const_iterator s_itor;
301 Sequence::const_iterator cs_itor;
303 for( str_itor = seq_string.begin(),
305 cs_itor = cs.begin();
306 str_itor != seq_string.end() and
307 s_itor != s.end() and
309 ++str_itor, ++s_itor, ++cs_itor, ++count)
311 BOOST_CHECK_EQUAL ( *str_itor, *s_itor );
312 BOOST_CHECK_EQUAL ( *s_itor, *cs_itor );
313 BOOST_CHECK_EQUAL ( *cs_itor, *str_itor );
315 BOOST_CHECK_EQUAL( seq_string.size(), count );
316 BOOST_CHECK_EQUAL( s.size(), count );
317 BOOST_CHECK_EQUAL( cs.size(), count );
320 BOOST_AUTO_TEST_CASE( sequence_motifs )
323 string bogus("AATTGGAA");
324 Sequence s1("AAAAGGGGCCCCTTTT");
326 list<motif>::const_iterator motif_i = s1.motifs().begin();
327 list<motif>::const_iterator motif_end = s1.motifs().end();
329 // do our iterators work?
330 BOOST_CHECK( motif_i == s1.motifs().begin() );
331 BOOST_CHECK( motif_end == s1.motifs().end() );
332 BOOST_CHECK( motif_i == motif_end );
334 // this shouldn't show up
336 BOOST_CHECK( s1.motifs().begin() == s1.motifs().end() );
337 BOOST_CHECK_EQUAL( s1.motifs().size(), 0 );
340 BOOST_CHECK( s1.motifs().begin() != s1.motifs().end() );
341 BOOST_CHECK_EQUAL( s1.motifs().size(), 2 );
343 for(motif_i = s1.motifs().begin();
344 motif_i != s1.motifs().end();
347 BOOST_CHECK_EQUAL( motif_i->type, "motif" );
348 BOOST_CHECK_EQUAL( motif_i->name, m);
349 BOOST_CHECK_EQUAL( motif_i->sequence, m);
353 BOOST_CHECK( s1.motifs().begin() == s1.motifs().end() );
355 /* FIXME: enable this when i find a way of passing storing the motif name
356 // does our annotation travel?
357 Sequence motif_seq(m);
358 motif_seq.set_fasta_header("hi");
359 s1.add_motif(motif_seq);
361 BOOST_CHECK_EQUAL(s1.motifs().size(), 2);
362 for(motif_i = s1.motifs().begin();
363 motif_i != s1.motifs().end();
366 BOOST_CHECK_EQUAL( motif_i->type, "motif" );
367 BOOST_CHECK_EQUAL( motif_i->name, "hi");
368 BOOST_CHECK_EQUAL( motif_i->sequence, m);
373 BOOST_AUTO_TEST_CASE( annot_test )
375 annot a(0, 10, "test", "thing");
377 BOOST_CHECK_EQUAL( a.begin, 0 );
378 BOOST_CHECK_EQUAL( a.end, 10 );
379 BOOST_CHECK_EQUAL( a.type, "test" );
380 BOOST_CHECK_EQUAL( a.name, "thing" );
382 motif m(10, "AAGGCC");
383 BOOST_CHECK_EQUAL( m.begin, 10 );
384 BOOST_CHECK_EQUAL( m.type, "motif" );
385 BOOST_CHECK_EQUAL( m.name, "AAGGCC" );
386 BOOST_CHECK_EQUAL( m.end, 10+6 );
389 BOOST_AUTO_TEST_CASE( annotate_from_sequence )
391 string s("CCGCCCCCCATCATCGCGGCTCTCCGAGAGTCCCGCGCCCCACTCCCGGC"
392 "ACCCACCTGACCGCGGGCGGCTCCGGCCCCGCTTCGCCCCACTGCGATCA"
393 "GTCGCGTCCCGCAGGCCAGGCACGCCCCGCCGCTCCCGCTGCGCCGGGCG"
394 "TCTGGGACCTCGGGCGGCTCCTCCGAGGGGCGGGGCAGCCGGGAGCCACG"
395 "CCCCCGCAGGTGAGCCGGCCACGCCCACCGCCCGTGGGAAGTTCAGCCTC"
396 "GGGGCTCCAGCCCCGCGGGAATGGCAGAACTTCGCACGCGGAACTGGTAA"
397 "CCTCCAGGACACCTCGAATCAGGGTGATTGTAGCGCAGGGGCCTTGGCCA"
398 "AGCTAAAACTTTGGAAACTTTAGATCCCAGACAGGTGGCTTTCTTGCAGT");
400 string gga("GGACACCTC");
403 std::list<Sequence> query_list;
404 std::list<string> string_list;
405 query_list.push_back(Sequence(gc));
406 string_list.push_back(gc);
407 query_list.push_back(Sequence(gga));
408 string_list.push_back(gga);
410 BOOST_CHECK_EQUAL( seq.annotations().size(), 0 );
411 seq.find_sequences(query_list.begin(), query_list.end());
414 for(list<string>::iterator string_i = string_list.begin();
415 string_i != string_list.end();
418 string::size_type pos=0;
419 while(pos != string::npos) {
420 pos = s.find(*string_i, pos);
421 if (pos != string::npos) {
427 BOOST_CHECK_EQUAL(seq.annotations().size(), count);
430 BOOST_AUTO_TEST_CASE( subseq_annotation_test )
432 string s("CCGCCCCCCATCATCGCGGCTCTCCGAGAGTCCCGCGCCCCACTCCCGGC"
433 "ACCCACCTGACCGCGGGCGGCTCCGGCCCCGCTTCGCCCCACTGCGATCA"
434 "GTCGCGTCCCGCAGGCCAGGCACGCCCCGCCGCTCCCGCTGCGCCGGGCG"
435 "TCTGGGACCTCGGGCGGCTCCTCCGAGGGGCGGGGCAGCCGGGAGCCACG"
436 "CCCCCGCAGGTGAGCCGGCCACGCCCACCGCCCGTGGGAAGTTCAGCCTC"
437 "GGGGCTCCAGCCCCGCGGGAATGGCAGAACTTCGCACGCGGAACTGGTAA"
438 "CCTCCAGGACACCTCGAATCAGGGTGATTGTAGCGCAGGGGCCTTGGCCA"
439 "AGCTAAAACTTTGGAAACTTTAGATCCCAGACAGGTGGCTTTCTTGCAGT");
443 seq.add_annotation(annot(0, 10, "0-10", "0-10"));
444 seq.add_annotation(annot(10, 20, "10-20", "10-20"));
445 seq.add_annotation(annot(0, 20, "0-20", "0-20"));
446 seq.add_annotation(annot(8, 12, "8-12", "8-12"));
447 seq.add_annotation(annot(100, 5000, "100-5000", "100-5000"));
449 Sequence subseq = seq.subseq(5, 10);
450 const list<annot> annots = subseq.annotations();
451 // generate some ground truth
453 correct.push_back(annot(0, 5, "0-10", "0-10"));
454 correct.push_back(annot(5,10, "10-20", "10-20"));
455 correct.push_back(annot(0,10, "0-20", "0-20"));
456 correct.push_back(annot(3, 7, "8-12", "8-12"));
457 BOOST_REQUIRE_EQUAL( annots.size(), correct.size() );
459 list<annot>::iterator correct_i = correct.begin();
460 list<annot>::const_iterator annot_i = annots.begin();
461 for(; annot_i != annots.end(); ++annot_i, ++correct_i)
463 BOOST_CHECK( *annot_i == *correct_i );
467 BOOST_AUTO_TEST_CASE( motif_annotation_update )
469 string s("CCGTCCCCCATCATCGCGGCTCTCCGAGAGTCCCGCGCCCCACTCCCGGC"
470 "ACCCACCTGACCGCGGGCGGCTCCGGCCCCGCTTCGCCCCACTGCGATCA"
471 "GTCGCGTCCCGCAGGCCAGGCACGCCCCGCCGCTCCCGCTGCGCCGGGCG"
472 "TCTGGGACCTCGGGCGGCTCCTCCGAGGGGCGGGGCAGCCGGGAGCCACG"
473 "CCCCCGCAGGTGAGCCGGCCACGCCCACCGCCCGTGGGAAGTTCAGCCTC"
474 "GGGGCTCCAGCCCCGCGGGAATGGCAGAACTTCGCACGCGGAACTGGTAA"
475 "CCTCCAGGACACCTCGAATCAGGGTGATTGTAGCGCAGGGGCCTTGGCCA"
476 "AGCTAAAACTTTGGAAACTTTAGATCCCAGACAGGTGGCTTTCTTGCAGT");
479 // starting conditions
480 BOOST_CHECK_EQUAL(seq.annotations().size(), 0);
481 BOOST_CHECK_EQUAL(seq.motifs().size(), 0);
482 seq.add_annotation(annot(0, 10, "0-10", "0-10"));
483 seq.add_annotation(annot(10, 20, "10-20", "10-20"));
484 seq.add_annotation(annot(0, 20, "0-20", "0-20"));
485 BOOST_CHECK_EQUAL(seq.annotations().size(), 3);
486 BOOST_CHECK_EQUAL(seq.motifs().size(), 0);
487 seq.add_motif("CCGTCCC");
488 BOOST_CHECK_EQUAL(seq.annotations().size(), 3);
489 BOOST_CHECK_EQUAL(seq.motifs().size(), 1);
491 BOOST_CHECK_EQUAL(seq.annotations().size(), 3);
492 BOOST_CHECK_EQUAL(seq.motifs().size(), 0);
495 BOOST_AUTO_TEST_CASE( out_operator )
497 string s("AAGGCCTT");
502 BOOST_CHECK_EQUAL( s, buf.str() );
505 BOOST_AUTO_TEST_CASE( get_name )
507 Sequence seq("AAGGCCTT");
509 BOOST_CHECK_EQUAL( seq.get_name(), "" );
510 seq.set_species("hooman"); // anyone remember tradewars?
511 BOOST_CHECK_EQUAL( seq.get_name(), "hooman");
512 seq.set_fasta_header("fasta human");
513 BOOST_CHECK_EQUAL( seq.get_name(), "fasta human");
516 BOOST_AUTO_TEST_CASE( serialize_simple )
518 std::string seq_string = "AAGGCCTT";
519 Sequence seq(seq_string);
520 seq.set_species("ribbet");
521 std::ostringstream oss;
522 // allocate/deallocate serialization components
524 boost::archive::text_oarchive oarchive(oss);
525 const Sequence& const_seq(seq);
526 BOOST_CHECK_EQUAL(seq, const_seq);
527 oarchive << const_seq;
531 std::istringstream iss(oss.str());
532 boost::archive::text_iarchive iarchive(iss);
533 iarchive >> seq_loaded;
535 BOOST_CHECK_EQUAL(seq_loaded, seq);
536 BOOST_CHECK_EQUAL(seq.get_species(), "ribbet");
539 BOOST_AUTO_TEST_CASE( serialize_tree )
541 std::string seq_string = "AAGGCCTT";
542 Sequence seq(seq_string);
543 seq.set_species("ribbet");
546 annot a1(6,7,"t","t");
547 seq.add_annotation(a1);
549 std::ostringstream oss;
550 // allocate/deallocate serialization components
552 boost::archive::text_oarchive oarchive(oss);
553 const Sequence& const_seq(seq);
554 BOOST_CHECK_EQUAL(seq, const_seq);
555 oarchive << const_seq;
560 std::istringstream iss(oss.str());
561 boost::archive::text_iarchive iarchive(iss);
562 iarchive >> seq_loaded;
564 BOOST_CHECK_EQUAL(seq_loaded, seq);
567 // this writes out an "old" style annotated sequence
568 // with annotations attached as "motifs" and "annots"
569 BOOST_AUTO_TEST_CASE( serialize_xml_sequence )
571 std::string seq_string = "AAGGCCTT";
572 Sequence seq(seq_string);
573 seq.set_species("ribbet");
576 annot a1(6,7,"t","t");
577 seq.add_annotation(a1);
579 std::ostringstream oss;
580 // allocate/deallocate serialization components
582 boost::archive::xml_oarchive oarchive(oss);
583 const Sequence& const_seq(seq);
584 BOOST_CHECK_EQUAL(seq, const_seq);
585 oarchive << boost::serialization::make_nvp("root", const_seq);
589 std::istringstream iss(oss.str());
590 boost::archive::xml_iarchive iarchive(iss);
591 iarchive >> boost::serialization::make_nvp("root", seq_loaded);
593 BOOST_CHECK_EQUAL(seq_loaded, seq);
596 BOOST_AUTO_TEST_CASE( serialize_xml_two )
598 std::string seq_string = "AAGGCCTT";
599 Sequence seq1(seq_string);
602 std::ostringstream oss;
603 // allocate/deallocate serialization components
605 boost::archive::xml_oarchive oarchive(oss);
606 const Sequence& const_seq1(seq1);
607 const Sequence& const_seq2(seq2);
608 oarchive << boost::serialization::make_nvp("seq1", const_seq1);
609 oarchive << boost::serialization::make_nvp("seq2", const_seq2);
611 //std::cout << "xml: " << oss.str() << std::endl;
612 Sequence seq1_loaded;
613 Sequence seq2_loaded;
615 std::istringstream iss(oss.str());
616 boost::archive::xml_iarchive iarchive(iss);
617 iarchive >> boost::serialization::make_nvp("seq1", seq1_loaded);
618 iarchive >> boost::serialization::make_nvp("seq2", seq2_loaded);
620 BOOST_CHECK_EQUAL(seq1_loaded, seq1);
621 BOOST_CHECK_EQUAL(seq2_loaded, seq2);
622 // test if our pointers are the same
623 BOOST_CHECK_EQUAL(seq1_loaded.c_str(), seq2_loaded.c_str());