tasklib/tests.py

   1 # coding=utf-8
   2
   3 import copy
   4 import datetime
   5 import itertools
   6 import json
   7 import pytz
   8 import six
   9 import shutil
  10 import tempfile
  11 import unittest
  12
  13 from .task import TaskWarrior, Task, ReadOnlyDictView, local_zone, DATE_FORMAT
  14
  15 # http://taskwarrior.org/docs/design/task.html , Section: The Attributes
  16 TASK_STANDARD_ATTRS = (
  17     'status',
  18     'uuid',
  19     'entry',
  20     'description',
  21     'start',
  22     'end',
  23     'due',
  24     'until',
  25     'wait',
  26     'modified',
  27     'scheduled',
  28     'recur',
  29     'mask',
  30     'imask',
  31     'parent',
  32     'project',
  33     'priority',
  34     'depends',
  35     'tags',
  36     'annotations',
  37 )
  38
  39 class TasklibTest(unittest.TestCase):
  40
  41     def setUp(self):
  42         self.tmp = tempfile.mkdtemp(dir='.')
  43         self.tw = TaskWarrior(data_location=self.tmp)
  44
  45     def tearDown(self):
  46         shutil.rmtree(self.tmp)
  47
  48
  49 class TaskFilterTest(TasklibTest):
  50
  51     def test_all_empty(self):
  52         self.assertEqual(len(self.tw.tasks.all()), 0)
  53
  54     def test_all_non_empty(self):
  55         Task(self.tw, description="test task").save()
  56         self.assertEqual(len(self.tw.tasks.all()), 1)
  57         self.assertEqual(self.tw.tasks.all()[0]['description'], 'test task')
  58         self.assertEqual(self.tw.tasks.all()[0]['status'], 'pending')
  59
  60     def test_pending_non_empty(self):
  61         Task(self.tw, description="test task").save()
  62         self.assertEqual(len(self.tw.tasks.pending()), 1)
  63         self.assertEqual(self.tw.tasks.pending()[0]['description'],
  64                          'test task')
  65         self.assertEqual(self.tw.tasks.pending()[0]['status'], 'pending')
  66
  67     def test_completed_empty(self):
  68         Task(self.tw, description="test task").save()
  69         self.assertEqual(len(self.tw.tasks.completed()), 0)
  70
  71     def test_completed_non_empty(self):
  72         Task(self.tw, description="test task").save()
  73         self.assertEqual(len(self.tw.tasks.completed()), 0)
  74         self.tw.tasks.all()[0].done()
  75         self.assertEqual(len(self.tw.tasks.completed()), 1)
  76
  77     def test_filtering_by_attribute(self):
  78         Task(self.tw, description="no priority task").save()
  79         Task(self.tw, priority="H", description="high priority task").save()
  80         self.assertEqual(len(self.tw.tasks.all()), 2)
  81
  82         # Assert that the correct number of tasks is returned
  83         self.assertEqual(len(self.tw.tasks.filter(priority="H")), 1)
  84
  85         # Assert that the correct tasks are returned
  86         high_priority_task = self.tw.tasks.get(priority="H")
  87         self.assertEqual(high_priority_task['description'], "high priority task")
  88
  89     def test_filtering_by_empty_attribute(self):
  90         Task(self.tw, description="no priority task").save()
  91         Task(self.tw, priority="H", description="high priority task").save()
  92         self.assertEqual(len(self.tw.tasks.all()), 2)
  93
  94         # Assert that the correct number of tasks is returned
  95         self.assertEqual(len(self.tw.tasks.filter(priority=None)), 1)
  96
  97         # Assert that the correct tasks are returned
  98         no_priority_task = self.tw.tasks.get(priority=None)
  99         self.assertEqual(no_priority_task['description'], "no priority task")
 100
 101     def test_filter_for_task_with_space_in_descripition(self):
 102         task = Task(self.tw, description="test task")
 103         task.save()
 104
 105         filtered_task = self.tw.tasks.get(description="test task")
 106         self.assertEqual(filtered_task['description'], "test task")
 107
 108     def test_filter_for_task_without_space_in_descripition(self):
 109         task = Task(self.tw, description="test")
 110         task.save()
 111
 112         filtered_task = self.tw.tasks.get(description="test")
 113         self.assertEqual(filtered_task['description'], "test")
 114
 115     def test_filter_for_task_with_space_in_project(self):
 116         task = Task(self.tw, description="test", project="random project")
 117         task.save()
 118
 119         filtered_task = self.tw.tasks.get(project="random project")
 120         self.assertEqual(filtered_task['project'], "random project")
 121
 122     def test_filter_for_task_without_space_in_project(self):
 123         task = Task(self.tw, description="test", project="random")
 124         task.save()
 125
 126         filtered_task = self.tw.tasks.get(project="random")
 127         self.assertEqual(filtered_task['project'], "random")
 128
 129     def test_filter_with_empty_uuid(self):
 130         self.assertRaises(ValueError, lambda: self.tw.tasks.get(uuid=''))
 131
 132 class TaskTest(TasklibTest):
 133
 134     def test_create_unsaved_task(self):
 135         # Make sure a new task is not saved unless explicitly called for
 136         t = Task(self.tw, description="test task")
 137         self.assertEqual(len(self.tw.tasks.all()), 0)
 138
 139     # TODO: once python 2.6 compatiblity is over, use context managers here
 140     #       and in all subsequent tests for assertRaises
 141
 142     def test_delete_unsaved_task(self):
 143         t = Task(self.tw, description="test task")
 144         self.assertRaises(Task.NotSaved, t.delete)
 145
 146     def test_complete_unsaved_task(self):
 147         t = Task(self.tw, description="test task")
 148         self.assertRaises(Task.NotSaved, t.done)
 149
 150     def test_refresh_unsaved_task(self):
 151         t = Task(self.tw, description="test task")
 152         self.assertRaises(Task.NotSaved, t.refresh)
 153
 154     def test_delete_deleted_task(self):
 155         t = Task(self.tw, description="test task")
 156         t.save()
 157         t.delete()
 158
 159         self.assertRaises(Task.DeletedTask, t.delete)
 160
 161     def test_complete_completed_task(self):
 162         t = Task(self.tw, description="test task")
 163         t.save()
 164         t.done()
 165
 166         self.assertRaises(Task.CompletedTask, t.done)
 167
 168     def test_complete_deleted_task(self):
 169         t = Task(self.tw, description="test task")
 170         t.save()
 171         t.delete()
 172
 173         self.assertRaises(Task.DeletedTask, t.done)
 174
 175     def test_modify_simple_attribute_without_space(self):
 176         t = Task(self.tw, description="test")
 177         t.save()
 178
 179         self.assertEquals(t['description'], "test")
 180
 181         t['description'] = "test-modified"
 182         t.save()
 183
 184         self.assertEquals(t['description'], "test-modified")
 185
 186     def test_modify_simple_attribute_with_space(self):
 187         # Space can pose problems with parsing
 188         t = Task(self.tw, description="test task")
 189         t.save()
 190
 191         self.assertEquals(t['description'], "test task")
 192
 193         t['description'] = "test task modified"
 194         t.save()
 195
 196         self.assertEquals(t['description'], "test task modified")
 197
 198     def test_empty_dependency_set_of_unsaved_task(self):
 199         t = Task(self.tw, description="test task")
 200         self.assertEqual(t['depends'], set())
 201
 202     def test_empty_dependency_set_of_saved_task(self):
 203         t = Task(self.tw, description="test task")
 204         t.save()
 205         self.assertEqual(t['depends'], set())
 206
 207     def test_set_unsaved_task_as_dependency(self):
 208         # Adds only one dependency to task with no dependencies
 209         t = Task(self.tw, description="test task")
 210         dependency = Task(self.tw, description="needs to be done first")
 211
 212         # We only save the parent task, dependency task is unsaved
 213         t.save()
 214         t['depends'] = set([dependency])
 215
 216         self.assertRaises(Task.NotSaved, t.save)
 217
 218     def test_set_simple_dependency_set(self):
 219         # Adds only one dependency to task with no dependencies
 220         t = Task(self.tw, description="test task")
 221         dependency = Task(self.tw, description="needs to be done first")
 222
 223         t.save()
 224         dependency.save()
 225
 226         t['depends'] = set([dependency])
 227
 228         self.assertEqual(t['depends'], set([dependency]))
 229
 230     def test_set_complex_dependency_set(self):
 231         # Adds two dependencies to task with no dependencies
 232         t = Task(self.tw, description="test task")
 233         dependency1 = Task(self.tw, description="needs to be done first")
 234         dependency2 = Task(self.tw, description="needs to be done second")
 235
 236         t.save()
 237         dependency1.save()
 238         dependency2.save()
 239
 240         t['depends'] = set([dependency1, dependency2])
 241
 242         self.assertEqual(t['depends'], set([dependency1, dependency2]))
 243
 244     def test_remove_from_dependency_set(self):
 245         # Removes dependency from task with two dependencies
 246         t = Task(self.tw, description="test task")
 247         dependency1 = Task(self.tw, description="needs to be done first")
 248         dependency2 = Task(self.tw, description="needs to be done second")
 249
 250         dependency1.save()
 251         dependency2.save()
 252
 253         t['depends'] = set([dependency1, dependency2])
 254         t.save()
 255
 256         t['depends'].remove(dependency2)
 257         t.save()
 258
 259         self.assertEqual(t['depends'], set([dependency1]))
 260
 261     def test_add_to_dependency_set(self):
 262         # Adds dependency to task with one dependencies
 263         t = Task(self.tw, description="test task")
 264         dependency1 = Task(self.tw, description="needs to be done first")
 265         dependency2 = Task(self.tw, description="needs to be done second")
 266
 267         dependency1.save()
 268         dependency2.save()
 269
 270         t['depends'] = set([dependency1])
 271         t.save()
 272
 273         t['depends'].add(dependency2)
 274         t.save()
 275
 276         self.assertEqual(t['depends'], set([dependency1, dependency2]))
 277
 278     def test_add_to_empty_dependency_set(self):
 279         # Adds dependency to task with one dependencies
 280         t = Task(self.tw, description="test task")
 281         dependency = Task(self.tw, description="needs to be done first")
 282
 283         dependency.save()
 284
 285         t['depends'].add(dependency)
 286         t.save()
 287
 288         self.assertEqual(t['depends'], set([dependency]))
 289
 290     def test_simple_dependency_set_save_repeatedly(self):
 291         # Adds only one dependency to task with no dependencies
 292         t = Task(self.tw, description="test task")
 293         dependency = Task(self.tw, description="needs to be done first")
 294         dependency.save()
 295
 296         t['depends'] = set([dependency])
 297         t.save()
 298
 299         # We taint the task, but keep depends intact
 300         t['description'] = "test task modified"
 301         t.save()
 302
 303         self.assertEqual(t['depends'], set([dependency]))
 304
 305         # We taint the task, but assign the same set to the depends
 306         t['depends'] = set([dependency])
 307         t['description'] = "test task modified again"
 308         t.save()
 309
 310         self.assertEqual(t['depends'], set([dependency]))
 311
 312     def test_compare_different_tasks(self):
 313         # Negative: compare two different tasks
 314         t1 = Task(self.tw, description="test task")
 315         t2 = Task(self.tw, description="test task")
 316
 317         t1.save()
 318         t2.save()
 319
 320         self.assertEqual(t1 == t2, False)
 321
 322     def test_compare_same_task_object(self):
 323         # Compare Task object wit itself
 324         t = Task(self.tw, description="test task")
 325         t.save()
 326
 327         self.assertEqual(t == t, True)
 328
 329     def test_compare_same_task(self):
 330         # Compare the same task using two different objects
 331         t1 = Task(self.tw, description="test task")
 332         t1.save()
 333
 334         t2 = self.tw.tasks.get(uuid=t1['uuid'])
 335         self.assertEqual(t1 == t2, True)
 336
 337     def test_compare_unsaved_tasks(self):
 338         # t1 and t2 are unsaved tasks, considered to be unequal
 339         # despite the content of data
 340         t1 = Task(self.tw, description="test task")
 341         t2 = Task(self.tw, description="test task")
 342
 343         self.assertEqual(t1 == t2, False)
 344
 345     def test_hash_unsaved_tasks(self):
 346         # Considered equal, it's the same object
 347         t1 = Task(self.tw, description="test task")
 348         t2 = t1
 349         self.assertEqual(hash(t1) == hash(t2), True)
 350
 351     def test_hash_same_task(self):
 352         # Compare the hash of the task using two different objects
 353         t1 = Task(self.tw, description="test task")
 354         t1.save()
 355
 356         t2 = self.tw.tasks.get(uuid=t1['uuid'])
 357         self.assertEqual(t1.__hash__(), t2.__hash__())
 358
 359     def test_adding_task_with_priority(self):
 360         t = Task(self.tw, description="test task", priority="M")
 361         t.save()
 362
 363     def test_removing_priority_with_none(self):
 364         t = Task(self.tw, description="test task", priority="L")
 365         t.save()
 366
 367         # Remove the priority mark
 368         t['priority'] = None
 369         t.save()
 370
 371         # Assert that priority is not there after saving
 372         self.assertEqual(t['priority'], None)
 373
 374     def test_adding_task_with_due_time(self):
 375         t = Task(self.tw, description="test task", due=datetime.datetime.now())
 376         t.save()
 377
 378     def test_removing_due_time_with_none(self):
 379         t = Task(self.tw, description="test task", due=datetime.datetime.now())
 380         t.save()
 381
 382         # Remove the due timestamp
 383         t['due'] = None
 384         t.save()
 385
 386         # Assert that due timestamp is no longer there
 387         self.assertEqual(t['due'], None)
 388
 389     def test_modified_fields_new_task(self):
 390         t = Task(self.tw)
 391
 392         # This should be empty with new task
 393         self.assertEqual(set(t._modified_fields), set())
 394
 395         # Modify the task
 396         t['description'] = "test task"
 397         self.assertEqual(set(t._modified_fields), set(['description']))
 398
 399         t['due'] = datetime.datetime(2014, 2, 14, 14, 14, 14)  # <3
 400         self.assertEqual(set(t._modified_fields), set(['description', 'due']))
 401
 402         t['project'] = "test project"
 403         self.assertEqual(set(t._modified_fields),
 404                          set(['description', 'due', 'project']))
 405
 406         # List of modified fields should clear out when saved
 407         t.save()
 408         self.assertEqual(set(t._modified_fields), set())
 409
 410         # Reassigning the fields with the same values now should not produce
 411         # modified fields
 412         t['description'] = "test task"
 413         t['due'] = datetime.datetime(2014, 2, 14, 14, 14, 14)  # <3
 414         t['project'] = "test project"
 415         self.assertEqual(set(t._modified_fields), set())
 416
 417     def test_modified_fields_loaded_task(self):
 418         t = Task(self.tw)
 419
 420         # Modify the task
 421         t['description'] = "test task"
 422         t['due'] = datetime.datetime(2014, 2, 14, 14, 14, 14)  # <3
 423         t['project'] = "test project"
 424
 425         dependency = Task(self.tw, description="dependency")
 426         dependency.save()
 427         t['depends'] = set([dependency])
 428
 429         # List of modified fields should clear out when saved
 430         t.save()
 431         self.assertEqual(set(t._modified_fields), set())
 432
 433         # Get the task by using a filter by UUID
 434         t2 = self.tw.tasks.get(uuid=t['uuid'])
 435
 436         # Reassigning the fields with the same values now should not produce
 437         # modified fields
 438         t['description'] = "test task"
 439         t['due'] = datetime.datetime(2014, 2, 14, 14, 14, 14)  # <3
 440         t['project'] = "test project"
 441         t['depends'] = set([dependency])
 442         self.assertEqual(set(t._modified_fields), set())
 443
 444     def test_modified_fields_not_affected_by_reading(self):
 445         t = Task(self.tw)
 446
 447         for field in TASK_STANDARD_ATTRS:
 448             value = t[field]
 449
 450         self.assertEqual(set(t._modified_fields), set())
 451
 452     def test_setting_read_only_attrs_through_init(self):
 453         # Test that we are unable to set readonly attrs through __init__
 454         for readonly_key in Task.read_only_fields:
 455             kwargs = {'description': 'test task', readonly_key: 'value'}
 456             self.assertRaises(RuntimeError,
 457                               lambda: Task(self.tw, **kwargs))
 458
 459     def test_setting_read_only_attrs_through_setitem(self):
 460         # Test that we are unable to set readonly attrs through __init__
 461         for readonly_key in Task.read_only_fields:
 462             t = Task(self.tw, description='test task')
 463             self.assertRaises(RuntimeError,
 464                               lambda: t.__setitem__(readonly_key, 'value'))
 465
 466     def test_saving_unmodified_task(self):
 467         t = Task(self.tw, description="test task")
 468         t.save()
 469         t.save()
 470
 471     def test_adding_tag_by_appending(self):
 472         t = Task(self.tw, description="test task", tags=['test1'])
 473         t.save()
 474         t['tags'].append('test2')
 475         t.save()
 476         self.assertEqual(t['tags'], ['test1', 'test2'])
 477
 478     def test_adding_tag_by_appending_empty(self):
 479         t = Task(self.tw, description="test task")
 480         t.save()
 481         t['tags'].append('test')
 482         t.save()
 483         self.assertEqual(t['tags'], ['test'])
 484
 485     def test_serializers_returning_empty_string_for_none(self):
 486         # Test that any serializer returns '' when passed None
 487         t = Task(self.tw)
 488         serializers = [getattr(t, serializer_name) for serializer_name in
 489                        filter(lambda x: x.startswith('serialize_'), dir(t))]
 490         for serializer in serializers:
 491             self.assertEqual(serializer(None), '')
 492
 493     def test_deserializer_returning_empty_value_for_empty_string(self):
 494         # Test that any deserializer returns empty value when passed ''
 495         t = Task(self.tw)
 496         deserializers = [getattr(t, deserializer_name) for deserializer_name in
 497                         filter(lambda x: x.startswith('deserialize_'), dir(t))]
 498         for deserializer in deserializers:
 499             self.assertTrue(deserializer('') in (None, [], set()))
 500
 501     def test_normalizers_handling_none(self):
 502         # Test that any normalizer can handle None as a valid value
 503         t = Task(self.tw)
 504
 505         normalizers = [getattr(t, normalizer_name) for normalizer_name in
 506                        filter(lambda x: x.startswith('normalize_'), dir(t))]
 507
 508         for normalizer in normalizers:
 509             normalizer(None)
 510
 511     def test_recurrent_task_generation(self):
 512         today = datetime.date.today()
 513         t = Task(self.tw, description="brush teeth",
 514                  due=today, recur="daily")
 515         t.save()
 516         self.assertEqual(len(self.tw.tasks.pending()), 2)
 517
 518 class TaskFromHookTest(TasklibTest):
 519
 520     input_add_data = six.StringIO(
 521         '{"description":"Buy some milk",'
 522         '"entry":"20141118T050231Z",'
 523         '"status":"pending",'
 524         '"uuid":"a360fc44-315c-4366-b70c-ea7e7520b749"}')
 525
 526     input_modify_data = six.StringIO(input_add_data.getvalue() + '\n' +
 527         '{"description":"Buy some milk finally",'
 528         '"entry":"20141118T050231Z",'
 529         '"status":"completed",'
 530         '"uuid":"a360fc44-315c-4366-b70c-ea7e7520b749"}')
 531
 532     exported_raw_data = (
 533         '{"project":"Home",'
 534          '"due":"20150101T232323Z",'
 535          '"description":"test task"}')
 536
 537     def test_setting_up_from_add_hook_input(self):
 538         t = Task.from_input(input_file=self.input_add_data)
 539         self.assertEqual(t['description'], "Buy some milk")
 540         self.assertEqual(t.pending, True)
 541
 542     def test_setting_up_from_modified_hook_input(self):
 543         t = Task.from_input(input_file=self.input_modify_data, modify=True)
 544         self.assertEqual(t['description'], "Buy some milk finally")
 545         self.assertEqual(t.pending, False)
 546         self.assertEqual(t.completed, True)
 547
 548         self.assertEqual(t._original_data['status'], "pending")
 549         self.assertEqual(t._original_data['description'], "Buy some milk")
 550         self.assertEqual(set(t._modified_fields),
 551                          set(['status', 'description']))
 552
 553     def test_export_data(self):
 554         t = Task(self.tw, description="test task",
 555             project="Home",
 556             due=pytz.utc.localize(datetime.datetime(2015,1,1,23,23,23)))
 557
 558         # Check that the output is a permutation of:
 559         # {"project":"Home","description":"test task","due":"20150101232323Z"}
 560         allowed_segments = self.exported_raw_data[1:-1].split(',')
 561         allowed_output = [
 562             '{' + ','.join(segments) + '}'
 563             for segments in itertools.permutations(allowed_segments)
 564         ]
 565
 566         self.assertTrue(any(t.export_data() == expected
 567                             for expected in allowed_output))
 568
 569 class TimezoneAwareDatetimeTest(TasklibTest):
 570
 571     def setUp(self):
 572         super(TimezoneAwareDatetimeTest, self).setUp()
 573         self.zone = local_zone
 574         self.localdate_naive = datetime.datetime(2015,2,2)
 575         self.localtime_naive = datetime.datetime(2015,2,2,0,0,0)
 576         self.localtime_aware = self.zone.localize(self.localtime_naive)
 577         self.utctime_aware = self.localtime_aware.astimezone(pytz.utc)
 578
 579     def test_timezone_naive_datetime_setitem(self):
 580         t = Task(self.tw, description="test task")
 581         t['due'] = self.localtime_naive
 582         self.assertEqual(t['due'], self.localtime_aware)
 583
 584     def test_timezone_naive_datetime_using_init(self):
 585         t = Task(self.tw, description="test task", due=self.localtime_naive)
 586         self.assertEqual(t['due'], self.localtime_aware)
 587
 588     def test_filter_by_naive_datetime(self):
 589         t = Task(self.tw, description="task1", due=self.localtime_naive)
 590         t.save()
 591         matching_tasks = self.tw.tasks.filter(due=self.localtime_naive)
 592         self.assertEqual(len(matching_tasks), 1)
 593
 594     def test_serialize_naive_datetime(self):
 595         t = Task(self.tw, description="task1", due=self.localtime_naive)
 596         self.assertEqual(json.loads(t.export_data())['due'],
 597                          self.utctime_aware.strftime(DATE_FORMAT))
 598
 599     def test_timezone_naive_date_setitem(self):
 600         t = Task(self.tw, description="test task")
 601         t['due'] = self.localdate_naive
 602         self.assertEqual(t['due'], self.localtime_aware)
 603
 604     def test_timezone_naive_date_using_init(self):
 605         t = Task(self.tw, description="test task", due=self.localdate_naive)
 606         self.assertEqual(t['due'], self.localtime_aware)
 607
 608     def test_filter_by_naive_date(self):
 609         t = Task(self.tw, description="task1", due=self.localdate_naive)
 610         t.save()
 611         matching_tasks = self.tw.tasks.filter(due=self.localdate_naive)
 612         self.assertEqual(len(matching_tasks), 1)
 613
 614     def test_serialize_naive_date(self):
 615         t = Task(self.tw, description="task1", due=self.localdate_naive)
 616         self.assertEqual(json.loads(t.export_data())['due'],
 617                          self.utctime_aware.strftime(DATE_FORMAT))
 618
 619     def test_timezone_aware_datetime_setitem(self):
 620         t = Task(self.tw, description="test task")
 621         t['due'] = self.localtime_aware
 622         self.assertEqual(t['due'], self.localtime_aware)
 623
 624     def test_timezone_aware_datetime_using_init(self):
 625         t = Task(self.tw, description="test task", due=self.localtime_aware)
 626         self.assertEqual(t['due'], self.localtime_aware)
 627
 628     def test_filter_by_aware_datetime(self):
 629         t = Task(self.tw, description="task1", due=self.localtime_aware)
 630         t.save()
 631         matching_tasks = self.tw.tasks.filter(due=self.localtime_aware)
 632         self.assertEqual(len(matching_tasks), 1)
 633
 634     def test_serialize_aware_datetime(self):
 635         t = Task(self.tw, description="task1", due=self.localtime_aware)
 636         self.assertEqual(json.loads(t.export_data())['due'],
 637                          self.utctime_aware.strftime(DATE_FORMAT))
 638
 639 class AnnotationTest(TasklibTest):
 640
 641     def setUp(self):
 642         super(AnnotationTest, self).setUp()
 643         Task(self.tw, description="test task").save()
 644
 645     def test_adding_annotation(self):
 646         task = self.tw.tasks.get()
 647         task.add_annotation('test annotation')
 648         self.assertEqual(len(task['annotations']), 1)
 649         ann = task['annotations'][0]
 650         self.assertEqual(ann['description'], 'test annotation')
 651
 652     def test_removing_annotation(self):
 653         task = self.tw.tasks.get()
 654         task.add_annotation('test annotation')
 655         ann = task['annotations'][0]
 656         ann.remove()
 657         self.assertEqual(len(task['annotations']), 0)
 658
 659     def test_removing_annotation_by_description(self):
 660         task = self.tw.tasks.get()
 661         task.add_annotation('test annotation')
 662         task.remove_annotation('test annotation')
 663         self.assertEqual(len(task['annotations']), 0)
 664
 665     def test_removing_annotation_by_obj(self):
 666         task = self.tw.tasks.get()
 667         task.add_annotation('test annotation')
 668         ann = task['annotations'][0]
 669         task.remove_annotation(ann)
 670         self.assertEqual(len(task['annotations']), 0)
 671
 672     def test_annotation_after_modification(self):
 673          task = self.tw.tasks.get()
 674          task['project'] = 'test'
 675          task.add_annotation('I should really do this task')
 676          self.assertEqual(task['project'], 'test')
 677          task.save()
 678          self.assertEqual(task['project'], 'test')
 679
 680     def test_serialize_annotations(self):
 681         # Test that serializing annotations is possible
 682         t = Task(self.tw, description="test")
 683         t.save()
 684
 685         t.add_annotation("annotation1")
 686         t.add_annotation("annotation2")
 687
 688         data = t._serialize('annotations', t._data['annotations'])
 689
 690         self.assertEqual(len(data), 2)
 691         self.assertEqual(type(data[0]), dict)
 692         self.assertEqual(type(data[1]), dict)
 693
 694         self.assertEqual(data[0]['description'], "annotation1")
 695         self.assertEqual(data[1]['description'], "annotation2")
 696
 697
 698 class UnicodeTest(TasklibTest):
 699
 700     def test_unicode_task(self):
 701         Task(self.tw, description="†åßk").save()
 702         self.tw.tasks.get()
 703
 704     def test_non_unicode_task(self):
 705         Task(self.tw, description="test task").save()
 706         self.tw.tasks.get()
 707
 708 class ReadOnlyDictViewTest(unittest.TestCase):
 709
 710     def setUp(self):
 711         self.sample = dict(l=[1,2,3], d={'k':'v'})
 712         self.original_sample = copy.deepcopy(self.sample)
 713         self.view = ReadOnlyDictView(self.sample)
 714
 715     def test_readonlydictview_getitem(self):
 716         l = self.view['l']
 717         self.assertEqual(l, self.sample['l'])
 718
 719         # Assert that modification changed only copied value
 720         l.append(4)
 721         self.assertNotEqual(l, self.sample['l'])
 722
 723         # Assert that viewed dict is not changed
 724         self.assertEqual(self.sample, self.original_sample)
 725
 726     def test_readonlydictview_contains(self):
 727         self.assertEqual('l' in self.view, 'l' in self.sample)
 728         self.assertEqual('d' in self.view, 'd' in self.sample)
 729         self.assertEqual('k' in self.view, 'k' in self.sample)
 730
 731         # Assert that viewed dict is not changed
 732         self.assertEqual(self.sample, self.original_sample)
 733
 734     def test_readonlydictview_iter(self):
 735         self.assertEqual(list(k for k in self.view),
 736                          list(k for k in self.sample))
 737
 738         # Assert the view is correct after modification
 739         self.sample['new'] = 'value'
 740         self.assertEqual(list(k for k in self.view),
 741                          list(k for k in self.sample))
 742
 743     def test_readonlydictview_len(self):
 744         self.assertEqual(len(self.view), len(self.sample))
 745
 746         # Assert the view is correct after modification
 747         self.sample['new'] = 'value'
 748         self.assertEqual(len(self.view), len(self.sample))
 749
 750     def test_readonlydictview_get(self):
 751         l = self.view.get('l')
 752         self.assertEqual(l, self.sample.get('l'))
 753
 754         # Assert that modification changed only copied value
 755         l.append(4)
 756         self.assertNotEqual(l, self.sample.get('l'))
 757
 758         # Assert that viewed dict is not changed
 759         self.assertEqual(self.sample, self.original_sample)
 760
 761     def test_readonlydict_items(self):
 762         view_items = self.view.items()
 763         sample_items = list(self.sample.items())
 764         self.assertEqual(view_items, sample_items)
 765
 766         view_items.append('newkey')
 767         self.assertNotEqual(view_items, sample_items)
 768         self.assertEqual(self.sample, self.original_sample)
 769
 770     def test_readonlydict_values(self):
 771         view_values = self.view.values()
 772         sample_values = list(self.sample.values())
 773         self.assertEqual(view_values, sample_values)
 774
 775         view_list_item = list(filter(lambda x: type(x) is list,
 776                                      view_values))[0]
 777         view_list_item.append(4)
 778         self.assertNotEqual(view_values, sample_values)
 779         self.assertEqual(self.sample, self.original_sample)