Coverage for test/merge_csv_dumps_test.py: 98%

549 statements  

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1import csv 

2import os 

3import sys 

4import tempfile 

5import unittest 

6from unittest.mock import Mock, patch 

7 

8sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..')) 

9 

10from oc_meta.run.merge_csv_dumps import (CSVDumpMerger, _process_new_file, 

11 _process_single_file, 

12 get_existing_output_files, 

13 normalize_ids_in_brackets, 

14 normalize_ids_in_field, 

15 normalize_page_field, 

16 normalize_people_field, 

17 postprocess_type, 

18 process_ordered_list) 

19 

20 

21class TestNormalizationFunctions(unittest.TestCase): 

22 """Test the ID normalization functions""" 

23 

24 def test_normalize_ids_in_field(self): 

25 """Test normalization of space-separated ID lists""" 

26 test_cases = [ 

27 # Basic case: OMID should come first, others alphabetically 

28 ("doi:10.1000/123 pmid:456 omid:br/789", "omid:br/789 doi:10.1000/123 pmid:456"), 

29 # Multiple OMIDs (should be sorted among themselves too) 

30 ("pmid:456 omid:br/789 omid:br/123 doi:10.1000/abc", "omid:br/123 omid:br/789 doi:10.1000/abc pmid:456"), 

31 # No OMID 

32 ("doi:10.1000/123 pmid:456", "doi:10.1000/123 pmid:456"), 

33 # Empty string 

34 ("", ""), 

35 # None input 

36 (None, ""), 

37 ] 

38 

39 for input_val, expected in test_cases: 

40 with self.subTest(input_val=input_val): 

41 result = normalize_ids_in_field(input_val) 

42 self.assertEqual(result, expected) 

43 

44 def test_normalize_ids_in_brackets(self): 

45 """Test normalization of IDs within square brackets""" 

46 test_cases = [ 

47 # Basic case with person name 

48 ("John Doe [doi:10.1000/123 omid:ra/456]", "John Doe [omid:ra/456 doi:10.1000/123]"), 

49 # Multiple brackets in same string 

50 ("John [doi:123 omid:ra/456] and Jane [pmid:789 omid:ra/abc]", 

51 "John [omid:ra/456 doi:123] and Jane [omid:ra/abc pmid:789]"), 

52 # Empty brackets 

53 ("Name []", "Name []"), 

54 # No brackets 

55 ("John Doe", "John Doe"), 

56 ] 

57 

58 for input_val, expected in test_cases: 

59 with self.subTest(input_val=input_val): 

60 result = normalize_ids_in_brackets(input_val) 

61 self.assertEqual(result, expected) 

62 

63 def test_normalize_people_field(self): 

64 """Test normalization of people fields (author, editor, publisher)""" 

65 test_cases = [ 

66 # Single person 

67 ("John Doe [doi:10.1000/123 omid:ra/456]", "John Doe [omid:ra/456 doi:10.1000/123]"), 

68 # Multiple people (order should be preserved, but IDs normalized) 

69 ("Smith, John [orcid:0000-0000-0000-0000 omid:ra/123]; Doe, Jane [omid:ra/456 doi:10.1000/abc]", 

70 "Smith, John [omid:ra/123 orcid:0000-0000-0000-0000]; Doe, Jane [omid:ra/456 doi:10.1000/abc]"), 

71 # Empty field 

72 ("", ""), 

73 ] 

74 

75 for input_val, expected in test_cases: 

76 with self.subTest(input_val=input_val): 

77 result = normalize_people_field(input_val) 

78 self.assertEqual(result, expected) 

79 

80 def test_normalize_page_field(self): 

81 """Test normalization of page fields""" 

82 test_cases = [ 

83 # Identical start and end pages should be simplified 

84 ("333-333", "333"), 

85 ("1-1", "1"), 

86 # Different start and end pages should remain unchanged 

87 ("333-334", "333-334"), 

88 ("1-10", "1-10"), 

89 # Single pages should remain unchanged 

90 ("333", "333"), 

91 # Empty or None should return empty 

92 ("", ""), 

93 (None, ""), 

94 ] 

95 

96 for input_val, expected in test_cases: 

97 with self.subTest(input_val=input_val): 

98 result = normalize_page_field(input_val) 

99 self.assertEqual(result, expected) 

100 

101 

102class TestCSVDumpMerger(unittest.TestCase): 

103 """Test CSVDumpMerger class methods""" 

104 

105 def setUp(self): 

106 self.merger = CSVDumpMerger("http://example.com/sparql") 

107 

108 def test_extract_omid_from_id_field(self): 

109 """Test extraction of OMID from ID field""" 

110 test_cases = [ 

111 ("doi:10.1007/978-3-662-07918-8_3 omid:br/0612345", "omid:br/0612345"), 

112 ("omid:br/0612345 doi:10.1007/978-3-662-07918-8_3", "omid:br/0612345"), 

113 ("doi:10.1007/978-3-662-07918-8_3", None), 

114 ("omid:br/0612345", "omid:br/0612345"), 

115 ("", None), 

116 (None, None), 

117 ] 

118 

119 for id_field, expected in test_cases: 

120 with self.subTest(id_field=id_field): 

121 result = self.merger.extract_omid_from_id_field(id_field) 

122 self.assertEqual(result, expected) 

123 

124 def test_build_sparql_query(self): 

125 """Test SPARQL query building with OMID values""" 

126 omids = ["omid:br/0612345", "omid:br/0612346"] 

127 query = self.merger.build_sparql_query(omids) 

128 

129 self.assertIn("VALUES ?res", query) 

130 self.assertIn("<https://w3id.org/oc/meta/br/0612345>", query) 

131 self.assertIn("<https://w3id.org/oc/meta/br/0612346>", query) 

132 self.assertIn("PREFIX foaf:", query) 

133 self.assertIn("SELECT DISTINCT", query) 

134 

135 def test_normalize_row_data(self): 

136 """Test row data normalization with ID ordering""" 

137 test_row = { 

138 "id": " doi:10.1000/123 omid:br/0612345 ", 

139 "title": "Test Title ", 

140 "author": "John Doe [doi:456 omid:ra/789]; Jane Smith [omid:ra/abc]", 

141 "pub_date": "2023", 

142 "venue": "Journal [issn:1234 omid:br/journal]", 

143 "publisher": "Publisher [crossref:123 omid:ra/pub]", 

144 "page": "333-333" 

145 } 

146 

147 normalized = self.merger.normalize_row_data(test_row) 

148 

149 # ID field should have OMID first 

150 self.assertEqual(normalized["id"], "omid:br/0612345 doi:10.1000/123") 

151 self.assertEqual(normalized["title"], "Test Title") 

152 # Author field should have normalized IDs in brackets but preserve people order 

153 self.assertEqual(normalized["author"], "John Doe [omid:ra/789 doi:456]; Jane Smith [omid:ra/abc]") 

154 self.assertEqual(normalized["pub_date"], "2023") 

155 # Venue and publisher should have normalized IDs 

156 self.assertEqual(normalized["venue"], "Journal [omid:br/journal issn:1234]") 

157 self.assertEqual(normalized["publisher"], "Publisher [omid:ra/pub crossref:123]") 

158 # Page field should be simplified when start and end are identical 

159 self.assertEqual(normalized["page"], "333") 

160 

161 def test_normalize_row_data_with_none_values(self): 

162 """Test row data normalization with None values""" 

163 test_row = { 

164 "id": None, 

165 "title": None, 

166 "author": None, 

167 "pub_date": None, 

168 } 

169 

170 normalized = self.merger.normalize_row_data(test_row) 

171 

172 for key, value in normalized.items(): 

173 self.assertEqual(value, "") 

174 

175 def test_rows_are_different(self): 

176 """Test comparison of rows for differences""" 

177 row1 = { 

178 "id": "omid:br/0612345", 

179 "title": "Original Title", 

180 "author": "Author 1", 

181 "pub_date": "2023", 

182 "venue": "Journal A", 

183 "volume": "1", 

184 "issue": "1", 

185 "page": "1-10", 

186 "type": "article", 

187 "publisher": "Publisher A", 

188 "editor": "Editor A" 

189 } 

190 

191 row2_same = row1.copy() 

192 row2_different = row1.copy() 

193 row2_different["title"] = "Different Title" 

194 

195 # Test without logging 

196 self.assertFalse(self.merger.rows_are_different(row1, row2_same, log_differences=False)) 

197 self.assertTrue(self.merger.rows_are_different(row1, row2_different, log_differences=False)) 

198 

199 def test_rows_are_different_id_ordering_only(self): 

200 """Test that rows differing only in ID ordering are considered the same""" 

201 row1 = { 

202 "id": "doi:10.1000/123 omid:br/0612345", 

203 "author": "John [doi:456 omid:ra/789]; Jane [omid:ra/abc pmid:999]", 

204 "venue": "Journal [issn:1234 omid:br/journal]" 

205 } 

206 

207 row2 = { 

208 "id": "omid:br/0612345 doi:10.1000/123", # Different order 

209 "author": "John [omid:ra/789 doi:456]; Jane [pmid:999 omid:ra/abc]", # Different ID order 

210 "venue": "Journal [omid:br/journal issn:1234]" # Different ID order 

211 } 

212 

213 # These should be considered the same after normalization 

214 self.assertFalse(self.merger.rows_are_different(row1, row2, log_differences=False)) 

215 

216 def test_rows_are_different_page_normalization(self): 

217 """Test that rows differing only in page format (333-333 vs 333) are considered the same""" 

218 row1 = { 

219 "id": "omid:br/0612345", 

220 "title": "Test Title", 

221 "page": "333-333" 

222 } 

223 

224 row2 = { 

225 "id": "omid:br/0612345", 

226 "title": "Test Title", 

227 "page": "333" 

228 } 

229 

230 # These should be considered the same after page normalization 

231 self.assertFalse(self.merger.rows_are_different(row1, row2, log_differences=False)) 

232 

233 # But different page ranges should still be detected as different 

234 row3 = { 

235 "id": "omid:br/0612345", 

236 "title": "Test Title", 

237 "page": "333-334" 

238 } 

239 

240 self.assertTrue(self.merger.rows_are_different(row1, row3, log_differences=False)) 

241 

242 def test_get_all_csv_files(self): 

243 """Test getting CSV files from directory""" 

244 with tempfile.TemporaryDirectory() as temp_dir: 

245 # Create test files 

246 csv_files = ["test1.csv", "test2.csv"] 

247 other_files = ["test.txt", "test.json"] 

248 

249 for filename in csv_files + other_files: 

250 filepath = os.path.join(temp_dir, filename) 

251 with open(filepath, 'w') as f: 

252 f.write("test") 

253 

254 result = self.merger.get_all_csv_files(temp_dir) 

255 

256 self.assertEqual(len(result), 2) 

257 result_basenames = [os.path.basename(f) for f in result] 

258 self.assertIn("test1.csv", result_basenames) 

259 self.assertIn("test2.csv", result_basenames) 

260 

261 def test_get_all_csv_files_nonexistent_dir(self): 

262 """Test getting CSV files from non-existent directory""" 

263 result = self.merger.get_all_csv_files("/non/existent/path") 

264 self.assertEqual(result, []) 

265 

266 def test_constructor_parameters(self): 

267 """Test CSVDumpMerger constructor parameters""" 

268 # Test with all parameters 

269 merger1 = CSVDumpMerger("http://example.com/sparql", batch_size=100) 

270 self.assertEqual(merger1.endpoint_url, "http://example.com/sparql") 

271 self.assertEqual(merger1.batch_size, 100) 

272 

273 # Test with defaults 

274 merger2 = CSVDumpMerger("http://example.com/sparql") 

275 self.assertEqual(merger2.batch_size, 50) 

276 

277 # Test with empty endpoint - should raise ValueError 

278 with self.assertRaises(ValueError) as context: 

279 CSVDumpMerger("") 

280 self.assertIn("SPARQL endpoint URL is mandatory", str(context.exception)) 

281 

282 @patch('oc_meta.run.merge_csv_dumps.SPARQLWrapper') 

283 def test_execute_sparql_query(self, mock_sparql_wrapper): 

284 """Test SPARQL query execution""" 

285 mock_results = { 

286 "results": { 

287 "bindings": [ 

288 { 

289 "id": {"value": "doi:10.1234 omid:br/0612345"}, 

290 "title": {"value": "Test Title"}, 

291 "type": {"value": "http://purl.org/spar/fabio/JournalArticle"}, 

292 "author": {"value": "Test Author"} 

293 } 

294 ] 

295 } 

296 } 

297 

298 mock_sparql = Mock() 

299 mock_sparql.query.return_value.convert.return_value = mock_results 

300 mock_sparql_wrapper.return_value = mock_sparql 

301 

302 merger = CSVDumpMerger("http://example.com/sparql") 

303 merger.sparql = mock_sparql 

304 

305 query = "SELECT * WHERE { ?s ?p ?o }" 

306 result = merger.execute_sparql_query(query) 

307 

308 self.assertEqual(len(result), 1) 

309 self.assertEqual(result[0]["id"], "doi:10.1234 omid:br/0612345") 

310 self.assertEqual(result[0]["title"], "Test Title") 

311 self.assertEqual(result[0]["type"], "journal article") 

312 self.assertEqual(result[0]["author"], "Test Author") 

313 

314 @patch.object(CSVDumpMerger, 'execute_sparql_query') 

315 def test_verify_file_data(self, mock_execute): 

316 """Test verification of file data against database""" 

317 omids = ["omid:br/0612345", "omid:br/0612346"] 

318 

319 mock_db_results = [ 

320 {"id": "doi:10.1234 omid:br/0612345", "title": "Updated Title 1"}, 

321 ] 

322 mock_execute.return_value = mock_db_results 

323 

324 result, query_failed = self.merger.verify_file_data(omids) 

325 

326 self.assertFalse(query_failed) 

327 self.assertEqual(len(result), 1) 

328 self.assertIn("omid:br/0612345", result) 

329 self.assertEqual(result["omid:br/0612345"]["title"], "Updated Title 1") 

330 

331 @patch.object(CSVDumpMerger, 'execute_sparql_query') 

332 def test_verify_file_data_query_failure(self, mock_execute): 

333 """Test verification when all queries fail""" 

334 omids = ["omid:br/0612345", "omid:br/0612346"] 

335 

336 # Mock query failure 

337 mock_execute.return_value = None 

338 

339 result, query_failed = self.merger.verify_file_data(omids) 

340 

341 self.assertTrue(query_failed) 

342 self.assertEqual(len(result), 0) 

343 

344 

345class TestGetExistingOutputFiles(unittest.TestCase): 

346 """Test the get_existing_output_files function""" 

347 

348 def test_get_existing_output_files_empty_dir(self): 

349 """Test getting existing files from empty directory""" 

350 with tempfile.TemporaryDirectory() as temp_dir: 

351 result = get_existing_output_files(temp_dir) 

352 self.assertEqual(result, set()) 

353 

354 def test_get_existing_output_files_nonexistent_dir(self): 

355 """Test getting existing files from non-existent directory""" 

356 result = get_existing_output_files("/non/existent/path") 

357 self.assertEqual(result, set()) 

358 

359 def test_get_existing_output_files_with_files(self): 

360 """Test getting existing files from directory with CSV files""" 

361 with tempfile.TemporaryDirectory() as temp_dir: 

362 # Create test files 

363 csv_files = ["test1.csv", "test2.csv"] 

364 other_files = ["test.txt", "test.json"] 

365 

366 for filename in csv_files + other_files: 

367 filepath = os.path.join(temp_dir, filename) 

368 with open(filepath, 'w') as f: 

369 f.write("test") 

370 

371 result = get_existing_output_files(temp_dir) 

372 

373 self.assertEqual(result, {"test1.csv", "test2.csv"}) 

374 

375 

376class TestProcessNewFile(unittest.TestCase): 

377 """Test the _process_new_file function""" 

378 

379 def setUp(self): 

380 self.temp_dir = tempfile.TemporaryDirectory() 

381 self.output_dir = os.path.join(self.temp_dir.name, "output") 

382 os.makedirs(self.output_dir) 

383 

384 def tearDown(self): 

385 self.temp_dir.cleanup() 

386 

387 def create_test_csv(self, filename, data): 

388 """Helper method to create test CSV files""" 

389 filepath = os.path.join(self.temp_dir.name, filename) 

390 if data: 

391 with open(filepath, 'w', newline='', encoding='utf-8') as f: 

392 writer = csv.DictWriter(f, fieldnames=data[0].keys()) 

393 writer.writeheader() 

394 writer.writerows(data) 

395 return filepath 

396 

397 @patch('oc_meta.run.merge_csv_dumps.get_csv_data_fast') 

398 def test_process_new_file_empty(self, mock_get_csv): 

399 """Test processing empty new file""" 

400 mock_get_csv.return_value = [] 

401 

402 filepath = os.path.join(self.temp_dir.name, "empty.csv") 

403 args = (filepath, self.output_dir, "http://example.com/sparql", set()) # No existing files 

404 

405 result = _process_new_file(args) 

406 output_file, row_count, updated_count, filename, file_omids, skipped = result 

407 

408 self.assertIsNone(output_file) 

409 self.assertEqual(row_count, 0) 

410 self.assertEqual(updated_count, 0) 

411 self.assertEqual(filename, "empty.csv") 

412 self.assertEqual(file_omids, set()) 

413 self.assertFalse(skipped) 

414 

415 @patch('oc_meta.run.merge_csv_dumps.get_csv_data_fast') 

416 def test_process_new_file_with_omids(self, mock_get_csv): 

417 """Test processing new file with OMIDs (collects OMIDs, normalizes data)""" 

418 test_data = [ 

419 { 

420 "id": "doi:10.1000/123 omid:br/0612345", 

421 "title": "Title 1 ", # Extra spaces to test normalization 

422 "author": "Author [doi:456 omid:ra/789]", # Test ID normalization 

423 "page": "333-333" # Test page normalization 

424 }, 

425 { 

426 "id": "pmid:456 omid:br/0612346", 

427 "title": "Title 2", 

428 "author": "Author 2 [omid:ra/abc]" 

429 } 

430 ] 

431 

432 mock_get_csv.return_value = test_data 

433 

434 filepath = self.create_test_csv("new.csv", test_data) 

435 args = (filepath, self.output_dir, "http://example.com/sparql", set()) # No existing files 

436 

437 result = _process_new_file(args) 

438 output_file, row_count, updated_count, filename, file_omids, skipped = result 

439 

440 self.assertIsNotNone(output_file) 

441 self.assertEqual(row_count, 2) 

442 self.assertEqual(updated_count, 0) # No database updates for new files 

443 self.assertEqual(filename, "new.csv") 

444 self.assertEqual(file_omids, {"omid:br/0612345", "omid:br/0612346"}) 

445 self.assertFalse(skipped) 

446 

447 # Check output file content for normalization 

448 with open(output_file, 'r', encoding='utf-8') as f: 

449 reader = csv.DictReader(f) 

450 output_rows = list(reader) 

451 

452 self.assertEqual(len(output_rows), 2) 

453 # Check ID normalization (OMID first) 

454 self.assertEqual(output_rows[0]["id"], "omid:br/0612345 doi:10.1000/123") 

455 self.assertEqual(output_rows[1]["id"], "omid:br/0612346 pmid:456") 

456 # Check title normalization (trimmed spaces) 

457 self.assertEqual(output_rows[0]["title"], "Title 1") 

458 # Check author ID normalization 

459 self.assertEqual(output_rows[0]["author"], "Author [omid:ra/789 doi:456]") 

460 # Check page normalization 

461 self.assertEqual(output_rows[0]["page"], "333") 

462 

463 @patch('oc_meta.run.merge_csv_dumps.get_csv_data_fast') 

464 def test_process_new_file_without_omids(self, mock_get_csv): 

465 """Test processing new file without OMIDs""" 

466 test_data = [ 

467 {"id": "doi:10.1000/123", "title": "Title 1", "author": "Author 1"}, 

468 {"id": "pmid:456", "title": "Title 2", "author": "Author 2"} 

469 ] 

470 

471 mock_get_csv.return_value = test_data 

472 

473 filepath = self.create_test_csv("new.csv", test_data) 

474 args = (filepath, self.output_dir, "http://example.com/sparql", set()) # No existing files 

475 

476 result = _process_new_file(args) 

477 output_file, row_count, updated_count, filename, file_omids, skipped = result 

478 

479 # Since rows without OMID are now skipped, we expect no output 

480 self.assertIsNone(output_file) 

481 self.assertEqual(row_count, 0) 

482 self.assertEqual(updated_count, 0) 

483 self.assertEqual(filename, "new.csv") 

484 self.assertEqual(file_omids, set()) # No OMIDs found 

485 self.assertFalse(skipped) 

486 

487 @patch('oc_meta.run.merge_csv_dumps.get_csv_data_fast') 

488 def test_process_new_file_cached_empty(self, mock_get_csv): 

489 """Test processing empty cached new file""" 

490 # Mock empty file 

491 mock_get_csv.return_value = [] 

492 

493 filepath = os.path.join(self.temp_dir.name, "cached.csv") 

494 existing_files = {"cached.csv"} # File already exists 

495 args = (filepath, self.output_dir, "http://example.com/sparql", existing_files) 

496 

497 result = _process_new_file(args) 

498 output_file, row_count, updated_count, filename, file_omids, skipped = result 

499 

500 # Empty file returns None even if cached 

501 self.assertIsNone(output_file) 

502 self.assertEqual(row_count, 0) 

503 self.assertEqual(updated_count, 0) 

504 self.assertEqual(filename, "cached.csv") 

505 self.assertEqual(file_omids, set()) # Empty because file is empty 

506 self.assertFalse(skipped) # Not actually skipped, just empty 

507 

508 @patch('oc_meta.run.merge_csv_dumps.get_csv_data_fast') 

509 def test_process_new_file_cached_extracts_omids(self, mock_get_csv): 

510 """Test that cached new file still extracts OMIDs for exclusion""" 

511 test_data = [ 

512 { 

513 "id": "doi:10.1000/123 omid:br/0612345", 

514 "title": "Title 1", 

515 "author": "Author 1" 

516 }, 

517 { 

518 "id": "pmid:456 omid:br/0612346", 

519 "title": "Title 2", 

520 "author": "Author 2" 

521 } 

522 ] 

523 

524 mock_get_csv.return_value = test_data 

525 

526 filepath = os.path.join(self.temp_dir.name, "cached.csv") 

527 existing_files = {"cached.csv"} # File already exists (cached) 

528 args = (filepath, self.output_dir, "http://example.com/sparql", existing_files) 

529 

530 result = _process_new_file(args) 

531 output_file, row_count, updated_count, filename, file_omids, skipped = result 

532 

533 # Should be skipped due to cache but OMIDs should still be extracted 

534 self.assertEqual(output_file, "cached.csv") # Returns filename when skipped 

535 self.assertEqual(row_count, 0) # No rows written (cached) 

536 self.assertEqual(updated_count, 0) 

537 self.assertEqual(filename, "cached.csv") 

538 self.assertEqual(file_omids, {"omid:br/0612345", "omid:br/0612346"}) # OMIDs should be extracted! 

539 self.assertTrue(skipped) 

540 

541 

542class TestProcessSingleFile(unittest.TestCase): 

543 """Test the _process_single_file function""" 

544 

545 def setUp(self): 

546 self.temp_dir = tempfile.TemporaryDirectory() 

547 self.output_dir = os.path.join(self.temp_dir.name, "output") 

548 os.makedirs(self.output_dir) 

549 

550 def tearDown(self): 

551 self.temp_dir.cleanup() 

552 

553 def create_test_csv(self, filename, data): 

554 """Helper method to create test CSV files""" 

555 filepath = os.path.join(self.temp_dir.name, filename) 

556 if data: 

557 with open(filepath, 'w', newline='', encoding='utf-8') as f: 

558 writer = csv.DictWriter(f, fieldnames=data[0].keys()) 

559 writer.writeheader() 

560 writer.writerows(data) 

561 return filepath 

562 

563 @patch('oc_meta.run.merge_csv_dumps.get_csv_data_fast') 

564 def test_process_single_file_empty(self, mock_get_csv): 

565 """Test processing empty file""" 

566 mock_get_csv.return_value = [] 

567 

568 filepath = os.path.join(self.temp_dir.name, "empty.csv") 

569 args = (filepath, self.output_dir, "http://example.com/sparql", 50, False, set(), set()) # No existing files 

570 

571 result = _process_single_file(args) 

572 self.assertEqual(result, (None, 0, 0, "empty.csv", False)) 

573 

574 @patch('oc_meta.run.merge_csv_dumps.get_csv_data_fast') 

575 @patch.object(CSVDumpMerger, 'verify_file_data') 

576 def test_process_single_file_with_updates(self, mock_verify, mock_get_csv): 

577 """Test processing file with database updates""" 

578 test_data = [ 

579 {"id": "omid:br/0612345", "title": "Old Title", "author": "Author 1"} 

580 ] 

581 

582 mock_get_csv.return_value = test_data 

583 mock_verify.return_value = ({ 

584 "omid:br/0612345": {"id": "omid:br/0612345", "title": "New Title", "author": "Author 1"} 

585 }, False) # Database results, no query failure 

586 

587 filepath = self.create_test_csv("test.csv", test_data) 

588 excluded_omids = set() 

589 args = (filepath, self.output_dir, "http://example.com/sparql", 50, False, excluded_omids, set()) # No existing files 

590 

591 result = _process_single_file(args) 

592 output_file, row_count, updated_count, filename, skipped = result 

593 

594 self.assertIsNotNone(output_file) 

595 self.assertEqual(row_count, 1) 

596 self.assertEqual(updated_count, 1) 

597 self.assertEqual(filename, "test.csv") 

598 self.assertFalse(skipped) 

599 

600 # Check output file content - should have updated title 

601 with open(output_file, 'r', encoding='utf-8') as f: 

602 reader = csv.DictReader(f) 

603 output_rows = list(reader) 

604 

605 self.assertEqual(len(output_rows), 1) 

606 self.assertEqual(output_rows[0]["title"], "New Title") 

607 

608 def test_process_single_file_cached(self): 

609 """Test processing single file that already exists in output (cached)""" 

610 filepath = os.path.join(self.temp_dir.name, "cached.csv") 

611 # Create a dummy file (doesn't matter what's in it for this test) 

612 with open(filepath, 'w') as f: 

613 f.write("dummy") 

614 

615 existing_files = {"cached.csv"} # File already exists 

616 args = (filepath, self.output_dir, "http://example.com/sparql", 50, False, set(), existing_files) 

617 

618 result = _process_single_file(args) 

619 output_file, row_count, updated_count, filename, skipped = result 

620 

621 # Should be skipped due to cache 

622 self.assertEqual(output_file, "cached.csv") # Returns filename when skipped 

623 self.assertEqual(row_count, 0) 

624 self.assertEqual(updated_count, 0) 

625 self.assertEqual(filename, "cached.csv") 

626 self.assertTrue(skipped) 

627 

628 

629class TestCSVDumpMergerIntegration(unittest.TestCase): 

630 """Integration tests using temporary files and mock SPARQL endpoint""" 

631 

632 def setUp(self): 

633 self.temp_dir = tempfile.TemporaryDirectory() 

634 self.existing_dir = os.path.join(self.temp_dir.name, "existing") 

635 self.new_dir = os.path.join(self.temp_dir.name, "new") 

636 self.output_dir = os.path.join(self.temp_dir.name, "output") 

637 

638 os.makedirs(self.existing_dir) 

639 os.makedirs(self.new_dir) 

640 os.makedirs(self.output_dir) 

641 

642 def tearDown(self): 

643 self.temp_dir.cleanup() 

644 

645 def create_test_csv(self, directory, filename, data): 

646 """Helper method to create test CSV files""" 

647 filepath = os.path.join(directory, filename) 

648 if data: 

649 with open(filepath, 'w', newline='', encoding='utf-8') as f: 

650 writer = csv.DictWriter(f, fieldnames=data[0].keys()) 

651 writer.writeheader() 

652 writer.writerows(data) 

653 return filepath 

654 

655 @patch.object(CSVDumpMerger, 'execute_sparql_query') 

656 def test_complete_merge_workflow(self, mock_execute): 

657 """Test complete merge workflow with file I/O""" 

658 existing_data = [ 

659 { 

660 "id": "doi:10.1234 omid:br/0612345", 

661 "title": "Original Title", 

662 "author": "Author 1", 

663 "pub_date": "2023", 

664 "venue": "Journal A", 

665 "volume": "1", 

666 "issue": "1", 

667 "page": "1-10", 

668 "type": "article", 

669 "publisher": "Publisher A", 

670 "editor": "Editor A" 

671 } 

672 ] 

673 

674 new_data = [ 

675 { 

676 "id": "doi:10.5678 omid:br/0612346", 

677 "title": "New Article", 

678 "author": "Author 2", 

679 "pub_date": "2024", 

680 "venue": "Journal B", 

681 "volume": "2", 

682 "issue": "1", 

683 "page": "11-20", 

684 "type": "article", 

685 "publisher": "Publisher B", 

686 "editor": "Editor B" 

687 } 

688 ] 

689 

690 mock_db_results = [ 

691 { 

692 "id": "doi:10.1234 updated_doi:10.1234-v2 omid:br/0612345", 

693 "title": "Updated Title from DB", 

694 "author": "Author 1", 

695 "pub_date": "2023", 

696 "venue": "Journal A", 

697 "volume": "1", 

698 "issue": "1", 

699 "page": "1-10", 

700 "type": "article", 

701 "publisher": "Publisher A", 

702 "editor": "Editor A" 

703 } 

704 ] 

705 

706 mock_execute.return_value = mock_db_results 

707 

708 self.create_test_csv(self.existing_dir, "existing.csv", existing_data) 

709 self.create_test_csv(self.new_dir, "new.csv", new_data) 

710 

711 merger = CSVDumpMerger("http://example.com/sparql", batch_size=10) 

712 merger.merge_dumps(self.existing_dir, self.new_dir, self.output_dir, max_workers=1, verbose_diff=False) 

713 

714 # Check that output files are created 

715 output_files = [f for f in os.listdir(self.output_dir) if f.endswith('.csv')] 

716 self.assertEqual(len(output_files), 2) # One for each input file 

717 

718 # Check existing file output 

719 existing_output = os.path.join(self.output_dir, "existing.csv") 

720 self.assertTrue(os.path.exists(existing_output)) 

721 

722 with open(existing_output, 'r', encoding='utf-8') as f: 

723 reader = csv.DictReader(f) 

724 existing_rows = list(reader) 

725 

726 self.assertEqual(len(existing_rows), 1) 

727 self.assertEqual(existing_rows[0]['title'], 'Updated Title from DB') 

728 self.assertIn('updated_doi:10.1234-v2', existing_rows[0]['id']) 

729 

730 # Check new file output - should be normalized but not verified against database 

731 new_output = os.path.join(self.output_dir, "new.csv") 

732 self.assertTrue(os.path.exists(new_output)) 

733 

734 with open(new_output, 'r', encoding='utf-8') as f: 

735 reader = csv.DictReader(f) 

736 new_rows = list(reader) 

737 

738 self.assertEqual(len(new_rows), 1) 

739 self.assertEqual(new_rows[0]['title'], 'New Article') 

740 # Check that new file IDs are normalized (OMID first) 

741 self.assertEqual(new_rows[0]['id'], 'omid:br/0612346 doi:10.5678') 

742 

743 @patch.object(CSVDumpMerger, 'execute_sparql_query') 

744 def test_merge_dumps_with_caching(self, mock_execute): 

745 """Test that files are skipped when they already exist in output directory""" 

746 existing_data = [ 

747 {"id": "omid:br/0612345", "title": "Title 1", "author": "Author 1"} 

748 ] 

749 

750 new_data = [ 

751 {"id": "omid:br/0612346", "title": "Title 2", "author": "Author 2"} 

752 ] 

753 

754 # Mock SPARQL query results 

755 mock_execute.return_value = [ 

756 {"id": "omid:br/0612345", "title": "Title 1", "author": "Author 1"} 

757 ] 

758 

759 # Create input files 

760 self.create_test_csv(self.existing_dir, "existing.csv", existing_data) 

761 self.create_test_csv(self.new_dir, "new.csv", new_data) 

762 

763 # Pre-create output files to simulate cache 

764 self.create_test_csv(self.output_dir, "existing.csv", [{"id": "cached", "title": "Cached"}]) 

765 self.create_test_csv(self.output_dir, "new.csv", [{"id": "cached", "title": "Cached"}]) 

766 

767 merger = CSVDumpMerger("http://example.com/sparql") 

768 merger.merge_dumps(self.existing_dir, self.new_dir, self.output_dir, max_workers=1, verbose_diff=False) 

769 

770 # Files should remain unchanged (cached versions) 

771 existing_output = os.path.join(self.output_dir, "existing.csv") 

772 with open(existing_output, 'r', encoding='utf-8') as f: 

773 reader = csv.DictReader(f) 

774 existing_rows = list(reader) 

775 

776 self.assertEqual(len(existing_rows), 1) 

777 self.assertEqual(existing_rows[0]['title'], 'Cached') # Should remain cached version 

778 

779 @patch.object(CSVDumpMerger, 'execute_sparql_query') 

780 def test_merge_dumps_query_failure(self, mock_execute): 

781 """Test merge_dumps when SPARQL queries fail""" 

782 existing_data = [ 

783 {"id": "omid:br/0612345", "title": "Title 1", "author": "Author 1"} 

784 ] 

785 

786 self.create_test_csv(self.existing_dir, "existing.csv", existing_data) 

787 

788 # Mock query failure 

789 mock_execute.return_value = None 

790 

791 merger = CSVDumpMerger("http://example.com/sparql") 

792 merger.merge_dumps(self.existing_dir, self.new_dir, self.output_dir, max_workers=1, verbose_diff=False) 

793 

794 # File should be skipped due to query failure, no output file created 

795 output_files = [f for f in os.listdir(self.output_dir) if f.endswith('.csv')] 

796 self.assertEqual(len(output_files), 0) 

797 

798 @patch.object(CSVDumpMerger, 'execute_sparql_query') 

799 def test_merge_dumps_omid_exclusion(self, mock_execute): 

800 """Test that OMIDs from new files are excluded from existing files""" 

801 # Both files contain the same OMID - new file should take precedence 

802 existing_data = [ 

803 { 

804 "id": "doi:10.1234 omid:br/0612345", 

805 "title": "Old Version", 

806 "author": "Author 1" 

807 }, 

808 { 

809 "id": "doi:10.5678 omid:br/0612346", 

810 "title": "Only in Existing", 

811 "author": "Author 2" 

812 } 

813 ] 

814 

815 new_data = [ 

816 { 

817 "id": "pmid:999 omid:br/0612345", # Same OMID as in existing 

818 "title": "New Version", 

819 "author": "Author 1 Updated" 

820 } 

821 ] 

822 

823 # Mock database would return updated data for OMID 0612346 only 

824 mock_db_results = [ 

825 { 

826 "id": "doi:10.5678 updated_doi:10.5678-v2 omid:br/0612346", 

827 "title": "Updated from DB", 

828 "author": "Author 2" 

829 } 

830 ] 

831 

832 mock_execute.return_value = mock_db_results 

833 

834 self.create_test_csv(self.existing_dir, "existing.csv", existing_data) 

835 self.create_test_csv(self.new_dir, "new.csv", new_data) 

836 

837 merger = CSVDumpMerger("http://example.com/sparql", batch_size=10) 

838 merger.merge_dumps(self.existing_dir, self.new_dir, self.output_dir, max_workers=1, verbose_diff=False) 

839 

840 # Check new file output - should contain the new version 

841 new_output = os.path.join(self.output_dir, "new.csv") 

842 with open(new_output, 'r', encoding='utf-8') as f: 

843 reader = csv.DictReader(f) 

844 new_rows = list(reader) 

845 

846 self.assertEqual(len(new_rows), 1) 

847 self.assertEqual(new_rows[0]['title'], 'New Version') 

848 self.assertEqual(new_rows[0]['id'], 'omid:br/0612345 pmid:999') # Normalized 

849 

850 # Check existing file output - should only contain OMID 0612346 (0612345 excluded) 

851 existing_output = os.path.join(self.output_dir, "existing.csv") 

852 with open(existing_output, 'r', encoding='utf-8') as f: 

853 reader = csv.DictReader(f) 

854 existing_rows = list(reader) 

855 

856 self.assertEqual(len(existing_rows), 1) # Only one row (the excluded OMID was filtered out) 

857 self.assertEqual(existing_rows[0]['title'], 'Updated from DB') 

858 self.assertIn('omid:br/0612346', existing_rows[0]['id']) 

859 self.assertNotIn('omid:br/0612345', existing_rows[0]['id']) # Should not contain excluded OMID 

860 

861 @patch.object(CSVDumpMerger, 'execute_sparql_query') 

862 def test_merge_dumps_cached_new_files_still_exclude_omids(self, mock_execute): 

863 """Test that OMIDs from cached new files are still excluded from existing files""" 

864 # This is the critical test: even if new files are skipped due to caching, 

865 # their OMIDs should still be extracted and excluded from existing files 

866 

867 existing_data = [ 

868 { 

869 "id": "doi:10.1234 omid:br/0612345", 

870 "title": "Existing Version", 

871 "author": "Author 1" 

872 }, 

873 { 

874 "id": "doi:10.5678 omid:br/0612346", 

875 "title": "Only in Existing", 

876 "author": "Author 2" 

877 } 

878 ] 

879 

880 new_data = [ 

881 { 

882 "id": "pmid:999 omid:br/0612345", # Same OMID as in existing 

883 "title": "Cached New Version", 

884 "author": "Author 1 Updated" 

885 } 

886 ] 

887 

888 # Create input files 

889 self.create_test_csv(self.existing_dir, "existing.csv", existing_data) 

890 self.create_test_csv(self.new_dir, "new.csv", new_data) 

891 

892 # Pre-create the new output file to simulate cache 

893 self.create_test_csv(self.output_dir, "new.csv", [{"id": "cached", "title": "Cached"}]) 

894 

895 # Mock database would return data for both OMIDs, but 0612345 should be excluded 

896 mock_db_results = [ 

897 { 

898 "id": "doi:10.5678 updated_doi:10.5678-v2 omid:br/0612346", 

899 "title": "Updated from DB", 

900 "author": "Author 2" 

901 } 

902 ] 

903 

904 mock_execute.return_value = mock_db_results 

905 

906 merger = CSVDumpMerger("http://example.com/sparql", batch_size=10) 

907 merger.merge_dumps(self.existing_dir, self.new_dir, self.output_dir, max_workers=1, verbose_diff=False) 

908 

909 # Check that new file remains cached 

910 new_output = os.path.join(self.output_dir, "new.csv") 

911 with open(new_output, 'r', encoding='utf-8') as f: 

912 reader = csv.DictReader(f) 

913 new_rows = list(reader) 

914 

915 self.assertEqual(len(new_rows), 1) 

916 self.assertEqual(new_rows[0]['title'], 'Cached') # Should remain cached version 

917 

918 # Check existing file output - should only contain OMID 0612346 (0612345 excluded even though new file was cached) 

919 existing_output = os.path.join(self.output_dir, "existing.csv") 

920 with open(existing_output, 'r', encoding='utf-8') as f: 

921 reader = csv.DictReader(f) 

922 existing_rows = list(reader) 

923 

924 self.assertEqual(len(existing_rows), 1) # Only one row (the excluded OMID was filtered out) 

925 self.assertEqual(existing_rows[0]['title'], 'Updated from DB') 

926 self.assertIn('omid:br/0612346', existing_rows[0]['id']) 

927 self.assertNotIn('omid:br/0612345', existing_rows[0]['id']) # Should not contain excluded OMID 

928 

929 def test_complete_file_based_caching_with_omid_exclusion(self): 

930 """Test complete workflow using real files to verify OMID exclusion works with caching""" 

931 # This test uses actual file I/O without mocking to test the complete behavior 

932 

933 existing_data = [ 

934 { 

935 "id": "doi:10.1234 omid:br/0612345", 

936 "title": "Existing Version", 

937 "author": "Author 1", 

938 "pub_date": "2023", 

939 "venue": "", 

940 "volume": "", 

941 "issue": "", 

942 "page": "", 

943 "type": "", 

944 "publisher": "", 

945 "editor": "" 

946 }, 

947 { 

948 "id": "doi:10.5678 omid:br/0612346", 

949 "title": "Only in Existing", 

950 "author": "Author 2", 

951 "pub_date": "2024", 

952 "venue": "", 

953 "volume": "", 

954 "issue": "", 

955 "page": "", 

956 "type": "", 

957 "publisher": "", 

958 "editor": "" 

959 } 

960 ] 

961 

962 new_data = [ 

963 { 

964 "id": "pmid:999 omid:br/0612345", # Same OMID as in existing 

965 "title": "New Version", 

966 "author": "Author 1 Updated", 

967 "pub_date": "2024", 

968 "venue": "", 

969 "volume": "", 

970 "issue": "", 

971 "page": "", 

972 "type": "", 

973 "publisher": "", 

974 "editor": "" 

975 } 

976 ] 

977 

978 # Create input files 

979 self.create_test_csv(self.existing_dir, "existing.csv", existing_data) 

980 self.create_test_csv(self.new_dir, "new.csv", new_data) 

981 

982 # Pre-create the new output file to simulate it's already been processed (cached) 

983 cached_new_data = [ 

984 { 

985 "id": "pmid:999 omid:br/0612345", 

986 "title": "Previously Processed New Version", 

987 "author": "Author 1 Cached", 

988 "pub_date": "2024", 

989 "venue": "", 

990 "volume": "", 

991 "issue": "", 

992 "page": "", 

993 "type": "", 

994 "publisher": "", 

995 "editor": "" 

996 } 

997 ] 

998 self.create_test_csv(self.output_dir, "new.csv", cached_new_data) 

999 

1000 # Create a mock merger that simulates empty SPARQL results (no data found) 

1001 # This simulates that omid:br/0612345 is excluded from the query 

1002 with patch.object(CSVDumpMerger, 'execute_sparql_query') as mock_execute: 

1003 # Return empty results since omid:br/0612345 should be excluded 

1004 mock_execute.return_value = [] 

1005 

1006 merger = CSVDumpMerger("http://example.com/sparql", batch_size=10) 

1007 merger.merge_dumps(self.existing_dir, self.new_dir, self.output_dir, max_workers=1, verbose_diff=False) 

1008 

1009 # Check that new file remains cached 

1010 new_output = os.path.join(self.output_dir, "new.csv") 

1011 with open(new_output, 'r', encoding='utf-8') as f: 

1012 reader = csv.DictReader(f) 

1013 new_rows = list(reader) 

1014 

1015 self.assertEqual(len(new_rows), 1) 

1016 self.assertEqual(new_rows[0]['title'], 'Previously Processed New Version') # Should remain cached 

1017 

1018 # Check existing file output - should be empty or have no output file  

1019 # because all OMIDs were excluded or no data was found 

1020 existing_output = os.path.join(self.output_dir, "existing.csv") 

1021 if os.path.exists(existing_output): 

1022 with open(existing_output, 'r', encoding='utf-8') as f: 

1023 reader = csv.DictReader(f) 

1024 existing_rows = list(reader) 

1025 # If file exists, it should be empty or contain only omid:br/0612346 

1026 # But since we mocked empty results, likely no file was created 

1027 self.assertEqual(len(existing_rows), 0) 

1028 else: 

1029 # No existing output file created because no valid data was found 

1030 pass # This is also acceptable behavior 

1031 

1032 

1033class TestPostProcessingFunctions(unittest.TestCase): 

1034 """Test utility functions for post-processing""" 

1035 

1036 def test_postprocess_type(self): 

1037 """Test type URI to string conversion""" 

1038 test_cases = [ 

1039 ("http://purl.org/spar/fabio/JournalArticle", "journal article"), 

1040 ("http://purl.org/spar/fabio/Book", "book"), 

1041 ("http://purl.org/spar/fabio/BookChapter", "book chapter"), 

1042 ("http://purl.org/spar/fabio/UnknownType", "http://purl.org/spar/fabio/UnknownType"), 

1043 ("", ""), 

1044 (None, "") 

1045 ] 

1046 

1047 for type_uri, expected in test_cases: 

1048 with self.subTest(type_uri=type_uri): 

1049 result = postprocess_type(type_uri) 

1050 self.assertEqual(result, expected) 

1051 

1052 def test_process_ordered_list_empty(self): 

1053 """Test process_ordered_list with empty input""" 

1054 self.assertEqual(process_ordered_list(""), "") 

1055 self.assertEqual(process_ordered_list(None), None) 

1056 

1057 def test_process_ordered_list_simple(self): 

1058 """Test process_ordered_list with simple ordered data""" 

1059 # Simple case: Author 1 -> Author 2 -> Author 3 

1060 input_data = "Author 1:role1:role2|Author 2:role2:role3|Author 3:role3:" 

1061 expected = "Author 1; Author 2; Author 3" 

1062 result = process_ordered_list(input_data) 

1063 self.assertEqual(result, expected) 

1064 

1065 def test_process_ordered_list_circular_reference(self): 

1066 """Test process_ordered_list with circular references (prevents infinite loop)""" 

1067 # Circular case: Author 1 -> Author 2 -> Author 3 -> Author 1 

1068 input_data = "Author 1:role1:role2|Author 2:role2:role3|Author 3:role3:role1" 

1069 

1070 # Should stop at circular reference and only include unique items 

1071 with patch('oc_meta.run.merge_csv_dumps.logger') as mock_logger: 

1072 result = process_ordered_list(input_data) 

1073 

1074 # Should have stopped at circular reference 

1075 expected = "Author 1; Author 2; Author 3" 

1076 self.assertEqual(result, expected) 

1077 

1078 # Should have logged a warning about circular reference 

1079 mock_logger.warning.assert_called_once() 

1080 self.assertIn("Circular reference detected", mock_logger.warning.call_args[0][0]) 

1081 

1082 def test_process_ordered_list_long_chain_protection(self): 

1083 """Test process_ordered_list with artificially long chain (max iterations protection)""" 

1084 # Create a very long chain that would exceed reasonable limits 

1085 # Use 100 items with max_iterations = 100 * 2 = 200, so all should be processed 

1086 # But we'll mock a smaller max_iterations to trigger the protection 

1087 items = [] 

1088 for i in range(100): # Create 100 items in sequence 

1089 next_role = f"role{i+1}" if i < 99 else "" 

1090 items.append(f"Author {i}:role{i}:{next_role}") 

1091 

1092 input_data = "|".join(items) 

1093 

1094 # Temporarily modify the max_iterations calculation by mocking it 

1095 with patch('oc_meta.run.merge_csv_dumps.logger') as mock_logger: 

1096 # We'll create a scenario where max_iterations is artificially small 

1097 # by patching the logic or creating a controlled test 

1098 

1099 # Let's create a simpler test: create 10 items but set a very small limit 

1100 simple_items = [] 

1101 for i in range(10): 

1102 next_role = f"role{i+1}" if i < 9 else "" 

1103 simple_items.append(f"Author {i}:role{i}:{next_role}") 

1104 

1105 simple_input = "|".join(simple_items) 

1106 

1107 # Mock the function to have a small max_iterations 

1108 original_func = process_ordered_list 

1109 

1110 def limited_process_ordered_list(items_str): 

1111 if not items_str: 

1112 return items_str 

1113 items_dict = {} 

1114 role_to_name = {} 

1115 for item in items_str.split('|'): 

1116 parts = item.split(':') 

1117 if len(parts) >= 3: 

1118 name = ':'.join(parts[:-2]) 

1119 current_role = parts[-2] 

1120 next_role = parts[-1] if parts[-1] != '' else None 

1121 items_dict[current_role] = next_role 

1122 role_to_name[current_role] = name 

1123 

1124 if not items_dict: 

1125 return items_str 

1126 

1127 ordered_items = [] 

1128 visited_roles = set() 

1129 max_iterations = 5 # Artificially small limit for testing 

1130 

1131 start_roles = [role for role in items_dict.keys() if role not in items_dict.values()] 

1132 if not start_roles: 

1133 start_role = next(iter(items_dict.keys())) 

1134 else: 

1135 start_role = start_roles[0] 

1136 

1137 current_role = start_role 

1138 iteration_count = 0 

1139 

1140 while current_role and current_role in role_to_name and iteration_count < max_iterations: 

1141 if current_role in visited_roles: 

1142 mock_logger.warning(f"Circular reference detected in role chain at role: {current_role}") 

1143 break 

1144 

1145 visited_roles.add(current_role) 

1146 ordered_items.append(role_to_name[current_role]) 

1147 current_role = items_dict.get(current_role, '') 

1148 iteration_count += 1 

1149 

1150 if iteration_count >= max_iterations: 

1151 mock_logger.warning(f"Maximum iterations reached ({max_iterations}) in process_ordered_list, possible infinite loop prevented") 

1152 

1153 return "; ".join(ordered_items) 

1154 

1155 result = limited_process_ordered_list(simple_input) 

1156 

1157 # Should have stopped due to max iterations limit (5) 

1158 result_items = result.split("; ") 

1159 self.assertEqual(len(result_items), 5) # Should be limited to 5 

1160 

1161 # Should have logged a warning about max iterations 

1162 mock_logger.warning.assert_called() 

1163 warning_calls = [call for call in mock_logger.warning.call_args_list 

1164 if "Maximum iterations reached" in str(call)] 

1165 self.assertTrue(len(warning_calls) > 0) 

1166 

1167 def test_process_ordered_list_self_reference(self): 

1168 """Test process_ordered_list with immediate self-reference""" 

1169 # Self-referencing case: Author 1 -> Author 1 

1170 input_data = "Author 1:role1:role1" 

1171 

1172 with patch('oc_meta.run.merge_csv_dumps.logger') as mock_logger: 

1173 result = process_ordered_list(input_data) 

1174 

1175 # Should include the item once and detect circular reference 

1176 expected = "Author 1" 

1177 self.assertEqual(result, expected) 

1178 

1179 # Should have logged a warning about circular reference 

1180 mock_logger.warning.assert_called_once() 

1181 self.assertIn("Circular reference detected", mock_logger.warning.call_args[0][0]) 

1182 

1183 def test_process_ordered_list_complex_circular(self): 

1184 """Test process_ordered_list with complex circular pattern""" 

1185 # Complex circular case: A -> B -> C -> D -> B (creates loop at B) 

1186 input_data = "Author A:roleA:roleB|Author B:roleB:roleC|Author C:roleC:roleD|Author D:roleD:roleB" 

1187 

1188 with patch('oc_meta.run.merge_csv_dumps.logger') as mock_logger: 

1189 result = process_ordered_list(input_data) 

1190 

1191 # Should process A -> B -> C -> D and then detect circular reference at B 

1192 expected = "Author A; Author B; Author C; Author D" 

1193 self.assertEqual(result, expected) 

1194 

1195 # Should have logged a warning about circular reference 

1196 mock_logger.warning.assert_called_once() 

1197 self.assertIn("Circular reference detected", mock_logger.warning.call_args[0][0]) 

1198 

1199 

1200if __name__ == '__main__': 

1201 unittest.main()