13 from arvados._ranges import Range
14 from arvados.keep import KeepLocator
15 from arvados.collection import Collection, CollectionReader
16 from arvados.arvfile import ArvadosFile, ArvadosFileReader
18 import arvados_testutil as tutil
19 from test_stream import StreamFileReaderTestCase, StreamRetryTestMixin
21 class ArvadosFileWriterTestCase(unittest.TestCase):
22 class MockKeep(object):
23 def __init__(self, blocks):
26 def get(self, locator, num_retries=0):
27 self.requests.append(locator)
28 return self.blocks.get(locator)
29 def get_from_cache(self, locator):
30 self.requests.append(locator)
31 return self.blocks.get(locator)
32 def put(self, data, num_retries=None, copies=None):
33 pdh = tutil.str_keep_locator(data)
34 self.blocks[pdh] = str(data)
37 class MockApi(object):
38 def __init__(self, b, r):
41 self._schema = ArvadosFileWriterTestCase.MockApi.MockSchema()
43 class MockSchema(object):
45 self.schemas = {'Collection': {'properties': {'replication_desired': {'type':'integer'}}}}
46 class MockCollections(object):
47 def __init__(self, b, r):
50 class Execute(object):
51 def __init__(self, r):
53 def execute(self, num_retries=None):
55 def create(self, ensure_unique_name=False, body=None):
57 raise Exception("Body %s does not match expectation %s" % (body, self.body))
58 return ArvadosFileWriterTestCase.MockApi.MockCollections.Execute(self.response)
59 def update(self, uuid=None, body=None):
60 return ArvadosFileWriterTestCase.MockApi.MockCollections.Execute(self.response)
61 def collections(self):
62 return ArvadosFileWriterTestCase.MockApi.MockCollections(self.body, self.response)
65 def test_truncate(self):
66 keep = ArvadosFileWriterTestCase.MockKeep({"781e5e245d69b566979b86e28d23f2c7+10": "0123456789"})
67 api = ArvadosFileWriterTestCase.MockApi({"name":"test_truncate",
68 "manifest_text":". 781e5e245d69b566979b86e28d23f2c7+10 0:8:count.txt\n",
69 "replication_desired":None},
70 {"uuid":"zzzzz-4zz18-mockcollection0",
71 "manifest_text":". 781e5e245d69b566979b86e28d23f2c7+10 0:8:count.txt\n"})
72 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt\n',
73 api_client=api, keep_client=keep) as c:
74 writer = c.open("count.txt", "r+")
75 self.assertEqual(writer.size(), 10)
76 self.assertEqual("0123456789", writer.read(12))
80 # Make sure reading off the end doesn't break
81 self.assertEqual("", writer.read(12))
83 self.assertEqual(writer.size(), 8)
84 writer.seek(0, os.SEEK_SET)
85 self.assertEqual("01234567", writer.read(12))
87 self.assertIsNone(c.manifest_locator())
88 self.assertTrue(c.modified())
89 c.save_new("test_truncate")
90 self.assertEqual("zzzzz-4zz18-mockcollection0", c.manifest_locator())
91 self.assertFalse(c.modified())
93 def test_write_to_end(self):
94 keep = ArvadosFileWriterTestCase.MockKeep({"781e5e245d69b566979b86e28d23f2c7+10": "0123456789"})
95 api = ArvadosFileWriterTestCase.MockApi({"name":"test_append",
96 "manifest_text": ". 781e5e245d69b566979b86e28d23f2c7+10 acbd18db4cc2f85cedef654fccc4a4d8+3 0:13:count.txt\n",
97 "replication_desired":None},
98 {"uuid":"zzzzz-4zz18-mockcollection0",
99 "manifest_text": ". 781e5e245d69b566979b86e28d23f2c7+10 acbd18db4cc2f85cedef654fccc4a4d8+3 0:13:count.txt\n"})
100 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt\n',
101 api_client=api, keep_client=keep) as c:
102 writer = c.open("count.txt", "r+")
103 self.assertEqual(writer.size(), 10)
105 writer.seek(5, os.SEEK_SET)
106 self.assertEqual("56789", writer.read(8))
108 writer.seek(10, os.SEEK_SET)
110 self.assertEqual(writer.size(), 13)
112 writer.seek(5, os.SEEK_SET)
113 self.assertEqual("56789foo", writer.read(8))
115 self.assertIsNone(c.manifest_locator())
116 self.assertTrue(c.modified())
117 self.assertIsNone(keep.get("acbd18db4cc2f85cedef654fccc4a4d8+3"))
119 c.save_new("test_append")
120 self.assertEqual("zzzzz-4zz18-mockcollection0", c.manifest_locator())
121 self.assertFalse(c.modified())
122 self.assertEqual("foo", keep.get("acbd18db4cc2f85cedef654fccc4a4d8+3"))
125 def test_append(self):
126 keep = ArvadosFileWriterTestCase.MockKeep({"781e5e245d69b566979b86e28d23f2c7+10": "0123456789"})
127 c = Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt\n', keep_client=keep)
128 writer = c.open("count.txt", "a+")
129 self.assertEqual(writer.read(20), "0123456789")
130 writer.seek(0, os.SEEK_SET)
132 writer.write("hello")
133 self.assertEqual(writer.read(20), "0123456789hello")
134 writer.seek(0, os.SEEK_SET)
136 writer.write("world")
137 self.assertEqual(writer.read(20), "0123456789helloworld")
139 self.assertEqual(". 781e5e245d69b566979b86e28d23f2c7+10 fc5e038d38a57032085441e7fe7010b0+10 0:20:count.txt\n", c.portable_manifest_text())
141 def test_write_at_beginning(self):
142 keep = ArvadosFileWriterTestCase.MockKeep({"781e5e245d69b566979b86e28d23f2c7+10": "0123456789"})
143 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt\n',
144 keep_client=keep) as c:
145 writer = c.open("count.txt", "r+")
146 self.assertEqual("0123456789", writer.readfrom(0, 13))
147 writer.seek(0, os.SEEK_SET)
149 self.assertEqual(writer.size(), 10)
150 self.assertEqual("foo3456789", writer.readfrom(0, 13))
151 self.assertEqual(". acbd18db4cc2f85cedef654fccc4a4d8+3 781e5e245d69b566979b86e28d23f2c7+10 0:3:count.txt 6:7:count.txt\n", c.portable_manifest_text())
153 def test_write_empty(self):
154 keep = ArvadosFileWriterTestCase.MockKeep({})
155 with Collection(keep_client=keep) as c:
156 writer = c.open("count.txt", "w")
157 self.assertEqual(writer.size(), 0)
158 self.assertEqual(". d41d8cd98f00b204e9800998ecf8427e+0 0:0:count.txt\n", c.portable_manifest_text())
160 def test_save_manifest_text(self):
161 keep = ArvadosFileWriterTestCase.MockKeep({})
162 with Collection(keep_client=keep) as c:
163 writer = c.open("count.txt", "w")
164 writer.write("0123456789")
165 self.assertEqual('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt\n', c.portable_manifest_text())
166 self.assertNotIn('781e5e245d69b566979b86e28d23f2c7+10', keep.blocks)
168 self.assertEqual('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt\n', c.save_new(create_collection_record=False))
169 self.assertIn('781e5e245d69b566979b86e28d23f2c7+10', keep.blocks)
171 def test_get_manifest_text_commits(self):
172 keep = ArvadosFileWriterTestCase.MockKeep({})
173 with Collection(keep_client=keep) as c:
174 writer = c.open("count.txt", "w")
175 writer.write("0123456789")
176 self.assertEqual('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt\n', c.portable_manifest_text())
177 self.assertNotIn('781e5e245d69b566979b86e28d23f2c7+10', keep.blocks)
178 self.assertEqual('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt\n', c.manifest_text())
179 self.assertIn('781e5e245d69b566979b86e28d23f2c7+10', keep.blocks)
182 def test_write_in_middle(self):
183 keep = ArvadosFileWriterTestCase.MockKeep({"781e5e245d69b566979b86e28d23f2c7+10": "0123456789"})
184 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt\n',
185 keep_client=keep) as c:
186 writer = c.open("count.txt", "r+")
187 self.assertEqual("0123456789", writer.readfrom(0, 13))
188 writer.seek(3, os.SEEK_SET)
190 self.assertEqual(writer.size(), 10)
191 self.assertEqual("012foo6789", writer.readfrom(0, 13))
192 self.assertEqual(". 781e5e245d69b566979b86e28d23f2c7+10 acbd18db4cc2f85cedef654fccc4a4d8+3 0:3:count.txt 10:3:count.txt 6:4:count.txt\n", c.portable_manifest_text())
194 def test_write_at_end(self):
195 keep = ArvadosFileWriterTestCase.MockKeep({"781e5e245d69b566979b86e28d23f2c7+10": "0123456789"})
196 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt\n',
197 keep_client=keep) as c:
198 writer = c.open("count.txt", "r+")
199 self.assertEqual("0123456789", writer.readfrom(0, 13))
200 writer.seek(7, os.SEEK_SET)
202 self.assertEqual(writer.size(), 10)
203 self.assertEqual("0123456foo", writer.readfrom(0, 13))
204 self.assertEqual(". 781e5e245d69b566979b86e28d23f2c7+10 acbd18db4cc2f85cedef654fccc4a4d8+3 0:7:count.txt 10:3:count.txt\n", c.portable_manifest_text())
206 def test_write_across_segment_boundary(self):
207 keep = ArvadosFileWriterTestCase.MockKeep({"781e5e245d69b566979b86e28d23f2c7+10": "0123456789"})
208 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt 0:10:count.txt\n',
209 keep_client=keep) as c:
210 writer = c.open("count.txt", "r+")
211 self.assertEqual("012345678901234", writer.readfrom(0, 15))
212 writer.seek(7, os.SEEK_SET)
213 writer.write("foobar")
214 self.assertEqual(writer.size(), 20)
215 self.assertEqual("0123456foobar34", writer.readfrom(0, 15))
216 self.assertEqual(". 781e5e245d69b566979b86e28d23f2c7+10 3858f62230ac3c915f300c664312c63f+6 0:7:count.txt 10:6:count.txt 3:7:count.txt\n", c.portable_manifest_text())
218 def test_write_across_several_segments(self):
219 keep = ArvadosFileWriterTestCase.MockKeep({"781e5e245d69b566979b86e28d23f2c7+10": "0123456789"})
220 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:4:count.txt 0:4:count.txt 0:4:count.txt',
221 keep_client=keep) as c:
222 writer = c.open("count.txt", "r+")
223 self.assertEqual("012301230123", writer.readfrom(0, 15))
224 writer.seek(2, os.SEEK_SET)
225 writer.write("abcdefg")
226 self.assertEqual(writer.size(), 12)
227 self.assertEqual("01abcdefg123", writer.readfrom(0, 15))
228 self.assertEqual(". 781e5e245d69b566979b86e28d23f2c7+10 7ac66c0f148de9519b8bd264312c4d64+7 0:2:count.txt 10:7:count.txt 1:3:count.txt\n", c.portable_manifest_text())
230 def test_write_large(self):
231 keep = ArvadosFileWriterTestCase.MockKeep({})
232 api = ArvadosFileWriterTestCase.MockApi({"name":"test_write_large",
233 "manifest_text": ". a5de24f4417cfba9d5825eadc2f4ca49+67108000 598cc1a4ccaef8ab6e4724d87e675d78+32892000 0:100000000:count.txt\n",
234 "replication_desired":None},
235 {"uuid":"zzzzz-4zz18-mockcollection0",
236 "manifest_text": ". a5de24f4417cfba9d5825eadc2f4ca49+67108000 598cc1a4ccaef8ab6e4724d87e675d78+32892000 0:100000000:count.txt\n"})
237 with Collection('. ' + arvados.config.EMPTY_BLOCK_LOCATOR + ' 0:0:count.txt',
238 api_client=api, keep_client=keep) as c:
239 writer = c.open("count.txt", "r+")
240 text = "0123456789" * 100
241 for b in xrange(0, 100000):
243 self.assertEqual(writer.size(), 100000000)
245 self.assertIsNone(c.manifest_locator())
246 self.assertTrue(c.modified())
247 c.save_new("test_write_large")
248 self.assertEqual("zzzzz-4zz18-mockcollection0", c.manifest_locator())
249 self.assertFalse(c.modified())
252 def test_large_write(self):
253 keep = ArvadosFileWriterTestCase.MockKeep({})
254 api = ArvadosFileWriterTestCase.MockApi({}, {})
255 with Collection('. ' + arvados.config.EMPTY_BLOCK_LOCATOR + ' 0:0:count.txt',
256 api_client=api, keep_client=keep) as c:
257 writer = c.open("count.txt", "r+")
258 self.assertEqual(writer.size(), 0)
262 text = "0123456789" * 9999999
264 self.assertEqual(writer.size(), 100000000)
266 self.assertEqual(c.manifest_text(), ". 781e5e245d69b566979b86e28d23f2c7+10 48dd23ea1645fd47d789804d71b5bb8e+67108864 77c57dc6ac5a10bb2205caaa73187994+32891126 0:100000000:count.txt\n")
268 def test_rewrite_on_empty_file(self):
269 keep = ArvadosFileWriterTestCase.MockKeep({})
270 with Collection('. ' + arvados.config.EMPTY_BLOCK_LOCATOR + ' 0:0:count.txt',
271 keep_client=keep) as c:
272 writer = c.open("count.txt", "r+")
273 for b in xrange(0, 10):
274 writer.seek(0, os.SEEK_SET)
275 writer.write("0123456789")
277 self.assertEqual(writer.size(), 10)
278 self.assertEqual("0123456789", writer.readfrom(0, 20))
279 self.assertEqual(". 7a08b07e84641703e5f2c836aa59a170+100 90:10:count.txt\n", c.portable_manifest_text())
281 self.assertEqual(writer.size(), 10)
282 self.assertEqual("0123456789", writer.readfrom(0, 20))
283 self.assertEqual(". 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt\n", c.portable_manifest_text())
285 def test_rewrite_append_existing_file(self):
286 keep = ArvadosFileWriterTestCase.MockKeep({"781e5e245d69b566979b86e28d23f2c7+10": "0123456789"})
287 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt',
288 keep_client=keep) as c:
289 writer = c.open("count.txt", "r+")
290 for b in xrange(0, 10):
291 writer.seek(10, os.SEEK_SET)
292 writer.write("abcdefghij")
294 self.assertEqual(writer.size(), 20)
295 self.assertEqual("0123456789abcdefghij", writer.readfrom(0, 20))
296 self.assertEqual(". 781e5e245d69b566979b86e28d23f2c7+10 ae5f43bab79cf0be33f025fa97ae7398+100 0:10:count.txt 100:10:count.txt\n", c.portable_manifest_text())
298 writer.arvadosfile.flush()
299 self.assertEqual(writer.size(), 20)
300 self.assertEqual("0123456789abcdefghij", writer.readfrom(0, 20))
301 self.assertEqual(". 781e5e245d69b566979b86e28d23f2c7+10 a925576942e94b2ef57a066101b48876+10 0:20:count.txt\n", c.portable_manifest_text())
303 def test_rewrite_over_existing_file(self):
304 keep = ArvadosFileWriterTestCase.MockKeep({"781e5e245d69b566979b86e28d23f2c7+10": "0123456789"})
305 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt',
306 keep_client=keep) as c:
307 writer = c.open("count.txt", "r+")
308 for b in xrange(0, 10):
309 writer.seek(5, os.SEEK_SET)
310 writer.write("abcdefghij")
312 self.assertEqual(writer.size(), 15)
313 self.assertEqual("01234abcdefghij", writer.readfrom(0, 20))
314 self.assertEqual(". 781e5e245d69b566979b86e28d23f2c7+10 ae5f43bab79cf0be33f025fa97ae7398+100 0:5:count.txt 100:10:count.txt\n", c.portable_manifest_text())
316 writer.arvadosfile.flush()
318 self.assertEqual(writer.size(), 15)
319 self.assertEqual("01234abcdefghij", writer.readfrom(0, 20))
320 self.assertEqual(". 781e5e245d69b566979b86e28d23f2c7+10 a925576942e94b2ef57a066101b48876+10 0:5:count.txt 10:10:count.txt\n", c.portable_manifest_text())
322 def test_write_large_rewrite(self):
323 keep = ArvadosFileWriterTestCase.MockKeep({})
324 api = ArvadosFileWriterTestCase.MockApi({"name":"test_write_large",
325 "manifest_text": ". 37400a68af9abdd76ca5bf13e819e42a+32892003 a5de24f4417cfba9d5825eadc2f4ca49+67108000 32892000:3:count.txt 32892006:67107997:count.txt 0:32892000:count.txt\n",
326 "replication_desired":None},
327 {"uuid":"zzzzz-4zz18-mockcollection0",
328 "manifest_text": ". 37400a68af9abdd76ca5bf13e819e42a+32892003 a5de24f4417cfba9d5825eadc2f4ca49+67108000 32892000:3:count.txt 32892006:67107997:count.txt 0:32892000:count.txt\n"})
329 with Collection('. ' + arvados.config.EMPTY_BLOCK_LOCATOR + ' 0:0:count.txt',
330 api_client=api, keep_client=keep) as c:
331 writer = c.open("count.txt", "r+")
332 text = ''.join(["0123456789" for a in xrange(0, 100)])
333 for b in xrange(0, 100000):
335 writer.seek(0, os.SEEK_SET)
337 self.assertEqual(writer.size(), 100000000)
339 self.assertIsNone(c.manifest_locator())
340 self.assertTrue(c.modified())
341 c.save_new("test_write_large")
342 self.assertEqual("zzzzz-4zz18-mockcollection0", c.manifest_locator())
343 self.assertFalse(c.modified())
345 def test_create(self):
346 keep = ArvadosFileWriterTestCase.MockKeep({})
347 api = ArvadosFileWriterTestCase.MockApi({"name":"test_create",
348 "manifest_text":". 2e9ec317e197819358fbc43afca7d837+8 0:8:count.txt\n",
349 "replication_desired":None},
350 {"uuid":"zzzzz-4zz18-mockcollection0",
351 "manifest_text":". 2e9ec317e197819358fbc43afca7d837+8 0:8:count.txt\n"})
352 with Collection(api_client=api, keep_client=keep) as c:
353 writer = c.open("count.txt", "w+")
354 self.assertEqual(writer.size(), 0)
355 writer.write("01234567")
356 self.assertEqual(writer.size(), 8)
358 self.assertIsNone(c.manifest_locator())
359 self.assertTrue(c.modified())
360 self.assertIsNone(keep.get("2e9ec317e197819358fbc43afca7d837+8"))
361 c.save_new("test_create")
362 self.assertEqual("zzzzz-4zz18-mockcollection0", c.manifest_locator())
363 self.assertFalse(c.modified())
364 self.assertEqual("01234567", keep.get("2e9ec317e197819358fbc43afca7d837+8"))
367 def test_create_subdir(self):
368 keep = ArvadosFileWriterTestCase.MockKeep({})
369 api = ArvadosFileWriterTestCase.MockApi({"name":"test_create",
370 "manifest_text":"./foo/bar 2e9ec317e197819358fbc43afca7d837+8 0:8:count.txt\n",
371 "replication_desired":None},
372 {"uuid":"zzzzz-4zz18-mockcollection0",
373 "manifest_text":"./foo/bar 2e9ec317e197819358fbc43afca7d837+8 0:8:count.txt\n"})
374 with Collection(api_client=api, keep_client=keep) as c:
375 self.assertIsNone(c.api_response())
376 writer = c.open("foo/bar/count.txt", "w+")
377 writer.write("01234567")
378 self.assertFalse(c.committed())
379 c.save_new("test_create")
380 self.assertTrue(c.committed())
381 self.assertEqual(c.api_response(), api.response)
383 def test_overwrite(self):
384 keep = ArvadosFileWriterTestCase.MockKeep({"781e5e245d69b566979b86e28d23f2c7+10": "0123456789"})
385 api = ArvadosFileWriterTestCase.MockApi({"name":"test_overwrite",
386 "manifest_text":". 2e9ec317e197819358fbc43afca7d837+8 0:8:count.txt\n",
387 "replication_desired":None},
388 {"uuid":"zzzzz-4zz18-mockcollection0",
389 "manifest_text":". 2e9ec317e197819358fbc43afca7d837+8 0:8:count.txt\n"})
390 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt\n',
391 api_client=api, keep_client=keep) as c:
392 writer = c.open("count.txt", "w+")
393 self.assertEqual(writer.size(), 0)
394 writer.write("01234567")
395 self.assertEqual(writer.size(), 8)
397 self.assertIsNone(c.manifest_locator())
398 self.assertTrue(c.modified())
399 c.save_new("test_overwrite")
400 self.assertEqual("zzzzz-4zz18-mockcollection0", c.manifest_locator())
401 self.assertFalse(c.modified())
403 def test_file_not_found(self):
404 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt\n') as c:
405 with self.assertRaises(IOError):
406 writer = c.open("nocount.txt", "r")
408 def test_cannot_open_directory(self):
409 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count.txt\n') as c:
410 with self.assertRaises(IOError):
411 writer = c.open(".", "r")
413 def test_create_multiple(self):
414 keep = ArvadosFileWriterTestCase.MockKeep({})
415 api = ArvadosFileWriterTestCase.MockApi({"name":"test_create_multiple",
416 "manifest_text":". 2e9ec317e197819358fbc43afca7d837+8 e8dc4081b13434b45189a720b77b6818+8 0:8:count1.txt 8:8:count2.txt\n",
417 "replication_desired":None},
418 {"uuid":"zzzzz-4zz18-mockcollection0",
419 "manifest_text":". 2e9ec317e197819358fbc43afca7d837+8 e8dc4081b13434b45189a720b77b6818+8 0:8:count1.txt 8:8:count2.txt\n"})
420 with Collection(api_client=api, keep_client=keep) as c:
421 w1 = c.open("count1.txt", "w")
422 w2 = c.open("count2.txt", "w")
425 self.assertEqual(w1.size(), 8)
426 self.assertEqual(w2.size(), 8)
428 self.assertIsNone(c.manifest_locator())
429 self.assertTrue(c.modified())
430 self.assertIsNone(keep.get("2e9ec317e197819358fbc43afca7d837+8"))
431 c.save_new("test_create_multiple")
432 self.assertEqual("zzzzz-4zz18-mockcollection0", c.manifest_locator())
433 self.assertFalse(c.modified())
434 self.assertEqual("01234567", keep.get("2e9ec317e197819358fbc43afca7d837+8"))
437 class ArvadosFileReaderTestCase(StreamFileReaderTestCase):
438 class MockParent(object):
439 class MockBlockMgr(object):
440 def __init__(self, blocks, nocache):
442 self.nocache = nocache
444 def block_prefetch(self, loc):
447 def get_block_contents(self, loc, num_retries=0, cache_only=False):
448 if self.nocache and cache_only:
450 return self.blocks[loc]
452 def __init__(self, blocks, nocache):
454 self.nocache = nocache
455 self.lock = arvados.arvfile.NoopLock()
457 def root_collection(self):
460 def _my_block_manager(self):
461 return ArvadosFileReaderTestCase.MockParent.MockBlockMgr(self.blocks, self.nocache)
464 def make_count_reader(self, nocache=False):
468 for d in ['01234', '34567', '67890']:
469 loc = tutil.str_keep_locator(d)
471 stream.append(Range(loc, n, len(d)))
473 af = ArvadosFile(ArvadosFileReaderTestCase.MockParent(blocks, nocache), "count.txt", stream=stream, segments=[Range(1, 0, 3), Range(6, 3, 3), Range(11, 6, 3)])
474 return ArvadosFileReader(af)
476 def test_read_block_crossing_behavior(self):
477 # read() needs to return all the data requested if possible, even if it
478 # crosses uncached blocks: https://arvados.org/issues/5856
479 sfile = self.make_count_reader(nocache=True)
480 self.assertEqual('12345678', sfile.read(8))
482 def test_successive_reads(self):
483 # Override StreamFileReaderTestCase.test_successive_reads
484 sfile = self.make_count_reader(nocache=True)
485 self.assertEqual('1234', sfile.read(4))
486 self.assertEqual('5678', sfile.read(4))
487 self.assertEqual('9', sfile.read(4))
488 self.assertEqual('', sfile.read(4))
490 def test_tell_after_block_read(self):
491 # Override StreamFileReaderTestCase.test_tell_after_block_read
492 sfile = self.make_count_reader(nocache=True)
493 self.assertEqual('12345678', sfile.read(8))
494 self.assertEqual(8, sfile.tell())
496 def test_prefetch(self):
497 keep = ArvadosFileWriterTestCase.MockKeep({"2e9ec317e197819358fbc43afca7d837+8": "01234567", "e8dc4081b13434b45189a720b77b6818+8": "abcdefgh"})
498 with Collection(". 2e9ec317e197819358fbc43afca7d837+8 e8dc4081b13434b45189a720b77b6818+8 0:16:count.txt\n", keep_client=keep) as c:
499 r = c.open("count.txt", "r")
500 self.assertEqual("0123", r.read(4))
501 self.assertIn("2e9ec317e197819358fbc43afca7d837+8", keep.requests)
502 self.assertIn("e8dc4081b13434b45189a720b77b6818+8", keep.requests)
504 def test__eq__from_manifest(self):
505 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count1.txt') as c1:
506 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count1.txt') as c2:
507 self.assertTrue(c1["count1.txt"] == c2["count1.txt"])
508 self.assertFalse(c1["count1.txt"] != c2["count1.txt"])
510 def test__eq__from_writes(self):
511 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count1.txt') as c1:
512 with Collection() as c2:
513 f = c2.open("count1.txt", "w")
514 f.write("0123456789")
516 self.assertTrue(c1["count1.txt"] == c2["count1.txt"])
517 self.assertFalse(c1["count1.txt"] != c2["count1.txt"])
519 def test__ne__(self):
520 with Collection('. 781e5e245d69b566979b86e28d23f2c7+10 0:10:count1.txt') as c1:
521 with Collection() as c2:
522 f = c2.open("count1.txt", "w")
523 f.write("1234567890")
525 self.assertTrue(c1["count1.txt"] != c2["count1.txt"])
526 self.assertFalse(c1["count1.txt"] == c2["count1.txt"])
529 class ArvadosFileReadTestCase(unittest.TestCase, StreamRetryTestMixin):
530 def reader_for(self, coll_name, **kwargs):
534 for d in self.manifest_for(coll_name).split():
537 segments.append(Range(n, n, k.size))
538 stream.append(Range(d, n, k.size))
543 blockmanager = arvados.arvfile._BlockManager(self.keep_client())
544 blockmanager.prefetch_enabled = False
545 col = Collection(keep_client=self.keep_client(), block_manager=blockmanager)
546 af = ArvadosFile(col, "test",
549 return ArvadosFileReader(af, **kwargs)
551 def read_for_test(self, reader, byte_count, **kwargs):
552 return reader.read(byte_count, **kwargs)
555 class ArvadosFileReadFromTestCase(ArvadosFileReadTestCase):
556 def read_for_test(self, reader, byte_count, **kwargs):
557 return reader.readfrom(0, byte_count, **kwargs)
560 class ArvadosFileReadAllTestCase(ArvadosFileReadTestCase):
561 def read_for_test(self, reader, byte_count, **kwargs):
562 return ''.join(reader.readall(**kwargs))
565 class ArvadosFileReadAllDecompressedTestCase(ArvadosFileReadTestCase):
566 def read_for_test(self, reader, byte_count, **kwargs):
567 return ''.join(reader.readall_decompressed(**kwargs))
570 class ArvadosFileReadlinesTestCase(ArvadosFileReadTestCase):
571 def read_for_test(self, reader, byte_count, **kwargs):
572 return ''.join(reader.readlines(**kwargs))
575 class ArvadosFileTestCase(unittest.TestCase):
576 def datetime_to_hex(self, dt):
577 return hex(int(time.mktime(dt.timetuple())))[2:]
579 def test_permission_expired(self):
580 base_manifest = ". 781e5e245d69b566979b86e28d23f2c7+10+A715fd31f8111894f717eb1003c1b0216799dd9ec@{} 0:10:count.txt\n"
581 now = datetime.datetime.now()
582 a_week_ago = now - datetime.timedelta(days=7)
583 a_month_ago = now - datetime.timedelta(days=30)
584 a_week_from_now = now + datetime.timedelta(days=7)
585 with Collection(base_manifest.format(self.datetime_to_hex(a_week_from_now))) as c:
586 self.assertFalse(c.find('count.txt').permission_expired())
587 with Collection(base_manifest.format(self.datetime_to_hex(a_week_ago))) as c:
588 f = c.find('count.txt')
589 self.assertTrue(f.permission_expired())
590 self.assertTrue(f.permission_expired(a_week_from_now))
591 self.assertFalse(f.permission_expired(a_month_ago))
594 class BlockManagerTest(unittest.TestCase):
595 def test_bufferblock_append(self):
596 keep = ArvadosFileWriterTestCase.MockKeep({})
597 with arvados.arvfile._BlockManager(keep) as blockmanager:
598 bufferblock = blockmanager.alloc_bufferblock()
599 bufferblock.append("foo")
601 self.assertEqual(bufferblock.size(), 3)
602 self.assertEqual(bufferblock.buffer_view[0:3], "foo")
603 self.assertEqual(bufferblock.locator(), "acbd18db4cc2f85cedef654fccc4a4d8+3")
605 bufferblock.append("bar")
607 self.assertEqual(bufferblock.size(), 6)
608 self.assertEqual(bufferblock.buffer_view[0:6], "foobar")
609 self.assertEqual(bufferblock.locator(), "3858f62230ac3c915f300c664312c63f+6")
611 bufferblock.set_state(arvados.arvfile._BufferBlock.PENDING)
612 with self.assertRaises(arvados.errors.AssertionError):
613 bufferblock.append("bar")
615 def test_bufferblock_dup(self):
616 keep = ArvadosFileWriterTestCase.MockKeep({})
617 with arvados.arvfile._BlockManager(keep) as blockmanager:
618 bufferblock = blockmanager.alloc_bufferblock()
619 bufferblock.append("foo")
621 self.assertEqual(bufferblock.size(), 3)
622 self.assertEqual(bufferblock.buffer_view[0:3], "foo")
623 self.assertEqual(bufferblock.locator(), "acbd18db4cc2f85cedef654fccc4a4d8+3")
624 bufferblock.set_state(arvados.arvfile._BufferBlock.PENDING)
626 bufferblock2 = blockmanager.dup_block(bufferblock, None)
627 self.assertNotEqual(bufferblock.blockid, bufferblock2.blockid)
629 bufferblock2.append("bar")
631 self.assertEqual(bufferblock2.size(), 6)
632 self.assertEqual(bufferblock2.buffer_view[0:6], "foobar")
633 self.assertEqual(bufferblock2.locator(), "3858f62230ac3c915f300c664312c63f+6")
635 self.assertEqual(bufferblock.size(), 3)
636 self.assertEqual(bufferblock.buffer_view[0:3], "foo")
637 self.assertEqual(bufferblock.locator(), "acbd18db4cc2f85cedef654fccc4a4d8+3")
639 def test_bufferblock_get(self):
640 keep = ArvadosFileWriterTestCase.MockKeep({"781e5e245d69b566979b86e28d23f2c7+10": "0123456789"})
641 with arvados.arvfile._BlockManager(keep) as blockmanager:
642 bufferblock = blockmanager.alloc_bufferblock()
643 bufferblock.append("foo")
645 self.assertEqual(blockmanager.get_block_contents("781e5e245d69b566979b86e28d23f2c7+10", 1), "0123456789")
646 self.assertEqual(blockmanager.get_block_contents(bufferblock.blockid, 1), "foo")
648 def test_bufferblock_commit(self):
649 mockkeep = mock.MagicMock()
650 with arvados.arvfile._BlockManager(mockkeep) as blockmanager:
651 bufferblock = blockmanager.alloc_bufferblock()
652 bufferblock.owner = mock.MagicMock()
653 def flush(sync=None):
654 blockmanager.commit_bufferblock(bufferblock, sync)
655 bufferblock.owner.flush.side_effect = flush
656 bufferblock.append("foo")
657 blockmanager.commit_all()
658 self.assertTrue(bufferblock.owner.flush.called)
659 self.assertTrue(mockkeep.put.called)
660 self.assertEqual(bufferblock.state(), arvados.arvfile._BufferBlock.COMMITTED)
661 self.assertIsNone(bufferblock.buffer_view)
663 def test_bufferblock_commit_pending(self):
665 mockkeep = mock.MagicMock()
666 mockkeep.put.side_effect = lambda x: time.sleep(1)
667 with arvados.arvfile._BlockManager(mockkeep) as blockmanager:
668 bufferblock = blockmanager.alloc_bufferblock()
669 bufferblock.append("foo")
671 blockmanager.commit_bufferblock(bufferblock, False)
672 self.assertEqual(bufferblock.state(), arvados.arvfile._BufferBlock.PENDING)
674 blockmanager.commit_bufferblock(bufferblock, True)
675 self.assertEqual(bufferblock.state(), arvados.arvfile._BufferBlock.COMMITTED)
678 def test_bufferblock_commit_with_error(self):
679 mockkeep = mock.MagicMock()
680 mockkeep.put.side_effect = arvados.errors.KeepWriteError("fail")
681 with arvados.arvfile._BlockManager(mockkeep) as blockmanager:
682 bufferblock = blockmanager.alloc_bufferblock()
683 bufferblock.owner = mock.MagicMock()
684 def flush(sync=None):
685 blockmanager.commit_bufferblock(bufferblock, sync)
686 bufferblock.owner.flush.side_effect = flush
687 bufferblock.append("foo")
688 with self.assertRaises(arvados.errors.KeepWriteError) as err:
689 blockmanager.commit_all()
690 self.assertTrue(bufferblock.owner.flush.called)
691 self.assertEqual(str(err.exception), "Error writing some blocks: block acbd18db4cc2f85cedef654fccc4a4d8+3 raised KeepWriteError (fail)")
692 self.assertEqual(bufferblock.state(), arvados.arvfile._BufferBlock.ERROR)