summaryrefslogtreecommitdiffstats
path: root/test/unit/repository_git_test.rb
blob: ee05c123fc015712f19baddc112d2b871157ad72 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
# frozen_string_literal: true

# Redmine - project management software
# Copyright (C) 2006-2017  Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

require File.expand_path('../../test_helper', __FILE__)

class RepositoryGitTest < ActiveSupport::TestCase
  fixtures :projects, :repositories, :enabled_modules, :users, :roles

  include Redmine::I18n

  REPOSITORY_PATH = Rails.root.join('tmp/test/git_repository').to_s
  REPOSITORY_PATH.gsub!(/\//, "\\") if Redmine::Platform.mswin?

  NUM_REV = 28
  NUM_HEAD = 6

  ## Git, Mercurial and CVS path encodings are binary.
  ## Subversion supports URL encoding for path.
  ## Redmine Mercurial adapter and extension use URL encoding.
  ## Git accepts only binary path in command line parameter.
  ## So, there is no way to use binary command line parameter in JRuby.
  JRUBY_SKIP     = (RUBY_PLATFORM == 'java')
  JRUBY_SKIP_STR = "TODO: This test fails in JRuby"

  def setup
    User.current = nil
    @project = Project.find(3)
    @repository = Repository::Git.create(
                        :project       => @project,
                        :url           => REPOSITORY_PATH,
                        :path_encoding => 'ISO-8859-1'
                        )
    assert @repository
  end

  def test_nondefault_repo_with_blank_identifier_destruction
    Repository.delete_all

    repo1 = Repository::Git.new(
                          :project    => @project,
                          :url        => REPOSITORY_PATH,
                          :identifier => '',
                          :is_default => true
                        )
    assert repo1.save
    repo1.fetch_changesets

    repo2 = Repository::Git.new(
                          :project    => @project,
                          :url        => REPOSITORY_PATH,
                          :identifier => 'repo2',
                          :is_default => true
                    )
    assert repo2.save
    repo2.fetch_changesets

    repo1.reload
    repo2.reload
    assert !repo1.is_default?
    assert  repo2.is_default?

    assert_difference 'Repository.count', -1 do
      repo1.destroy
    end
  end

  def test_blank_path_to_repository_error_message
    set_language_if_valid 'en'
    repo = Repository::Git.new(
                          :project      => @project,
                          :identifier   => 'test'
                        )
    assert !repo.save
    assert_include "Path to repository cannot be blank",
                   repo.errors.full_messages
  end

  def test_blank_path_to_repository_error_message_fr
    set_language_if_valid 'fr'
    repo = Repository::Git.new(
                          :project      => @project,
                          :url          => "",
                          :identifier   => 'test',
                          :path_encoding => ''
                        )
    assert !repo.save
    assert_include 'Chemin du dépôt doit être renseigné(e)', repo.errors.full_messages
  end

  if File.directory?(REPOSITORY_PATH)
    ## Ruby uses ANSI api to fork a process on Windows.
    ## Japanese Shift_JIS and Traditional Chinese Big5 have 0x5c(backslash) problem
    ## and these are incompatible with ASCII.
    ## Git for Windows (msysGit) changed internal API from ANSI to Unicode in 1.7.10
    ## http://code.google.com/p/msysgit/issues/detail?id=80
    ## So, Latin-1 path tests fail on Japanese Windows
    WINDOWS_PASS = (Redmine::Platform.mswin? &&
                         Redmine::Scm::Adapters::GitAdapter.client_version_above?([1, 7, 10]))
    WINDOWS_SKIP_STR = "TODO: This test fails in Git for Windows above 1.7.10"

    def test_scm_available
      klass = Repository::Git
      assert_equal "Git", klass.scm_name
      assert klass.scm_adapter_class
      assert_not_equal "", klass.scm_command
      assert_equal true, klass.scm_available
    end

    def test_entries
      entries = @repository.entries
      assert_kind_of Redmine::Scm::Adapters::Entries, entries
    end

    def test_fetch_changesets_from_scratch
      assert_nil @repository.extra_info

      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload

      assert_equal NUM_REV, @repository.changesets.count
      assert_equal 39, @repository.filechanges.count

      commit = @repository.changesets.find_by_revision("7234cb2750b63f47bff735edc50a1c0a433c2518")
      assert_equal "7234cb2750b63f47bff735edc50a1c0a433c2518", commit.scmid
      assert_equal "Initial import.\nThe repository contains 3 files.", commit.comments
      assert_equal "jsmith <jsmith@foo.bar>", commit.committer
      assert_equal User.find_by_login('jsmith'), commit.user
      # TODO: add a commit with commit time <> author time to the test repository
      assert_equal Time.gm(2007, 12, 14, 9, 22, 52), commit.committed_on
      assert_equal "2007-12-14".to_date, commit.commit_date
      assert_equal 3, commit.filechanges.count
      change = commit.filechanges.sort_by(&:path).first
      assert_equal "README", change.path
      assert_nil change.from_path
      assert_equal "A", change.action

      assert_equal NUM_HEAD, @repository.extra_info["heads"].size
    end

    def test_fetch_changesets_incremental
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      extra_info_heads = @repository.extra_info["heads"].dup
      assert_equal NUM_HEAD, extra_info_heads.size
      extra_info_heads.delete_if { |x| x == "83ca5fd546063a3c7dc2e568ba3355661a9e2b2c" }
      assert_equal 4, extra_info_heads.size

      del_revs = [
          "83ca5fd546063a3c7dc2e568ba3355661a9e2b2c",
          "ed5bb786bbda2dee66a2d50faf51429dbc043a7b",
          "4f26664364207fa8b1af9f8722647ab2d4ac5d43",
          "deff712f05a90d96edbd70facc47d944be5897e3",
          "32ae898b720c2f7eec2723d5bdd558b4cb2d3ddf",
          "7e61ac704deecde634b51e59daa8110435dcb3da",
         ]
      @repository.changesets.each do |rev|
        rev.destroy if del_revs.detect {|r| r == rev.scmid.to_s }
      end
      @project.reload
      cs1 = @repository.changesets
      assert_equal NUM_REV - 6, cs1.count
      extra_info_heads << "4a07fe31bffcf2888791f3e6cbc9c4545cefe3e8"
      h = {}
      h["heads"] = extra_info_heads
      @repository.merge_extra_info(h)
      @repository.save
      @project.reload
      assert @repository.extra_info["heads"].index("4a07fe31bffcf2888791f3e6cbc9c4545cefe3e8")
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      assert_equal NUM_HEAD, @repository.extra_info["heads"].size
      assert @repository.extra_info["heads"].index("83ca5fd546063a3c7dc2e568ba3355661a9e2b2c")
    end

    def test_fetch_changesets_history_editing
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      extra_info_heads = @repository.extra_info["heads"].dup
      assert_equal NUM_HEAD, extra_info_heads.size
      extra_info_heads.delete_if { |x| x == "83ca5fd546063a3c7dc2e568ba3355661a9e2b2c" }
      assert_equal 4, extra_info_heads.size

      del_revs = [
          "83ca5fd546063a3c7dc2e568ba3355661a9e2b2c",
          "ed5bb786bbda2dee66a2d50faf51429dbc043a7b",
          "4f26664364207fa8b1af9f8722647ab2d4ac5d43",
          "deff712f05a90d96edbd70facc47d944be5897e3",
          "32ae898b720c2f7eec2723d5bdd558b4cb2d3ddf",
          "7e61ac704deecde634b51e59daa8110435dcb3da",
         ]
      @repository.changesets.each do |rev|
        rev.destroy if del_revs.detect {|r| r == rev.scmid.to_s }
      end
      @project.reload
      assert_equal NUM_REV - 6, @repository.changesets.count

      c = Changeset.new(:repository   => @repository,
                        :committed_on => Time.now,
                        :revision     => "abcd1234efgh",
                        :scmid        => "abcd1234efgh",
                        :comments     => 'test')
      assert c.save
      @project.reload
      assert_equal NUM_REV - 5, @repository.changesets.count

      extra_info_heads << "1234abcd5678"
      h = {}
      h["heads"] = extra_info_heads
      @repository.merge_extra_info(h)
      @repository.save
      @project.reload
      h1 = @repository.extra_info["heads"].dup
      assert h1.index("1234abcd5678")
      assert_equal 5, h1.size

      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV - 5, @repository.changesets.count
      h2 = @repository.extra_info["heads"].dup
      assert_equal h1, h2
    end

    def test_clear_changesets_should_keep_report_last_commit
      assert_nil @repository.extra_info
      @repository.report_last_commit = "1"
      @repository.save
      @repository.send(:clear_changesets)

      assert_equal true, @repository.report_last_commit
    end

    def test_refetch_after_clear_changesets
      assert_nil @repository.extra_info
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count

      @repository.send(:clear_changesets)
      @project.reload
      assert_equal 0, @repository.changesets.count

      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
    end

    def test_parents
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      r1 = @repository.find_changeset_by_name("7234cb2750b63")
      assert_equal [], r1.parents
      r2 = @repository.find_changeset_by_name("899a15dba03a3")
      assert_equal 1, r2.parents.length
      assert_equal "7234cb2750b63f47bff735edc50a1c0a433c2518",
                   r2.parents[0].identifier
      r3 = @repository.find_changeset_by_name("32ae898b720c2")
      assert_equal 2, r3.parents.length
      r4 = [r3.parents[0].identifier, r3.parents[1].identifier].sort
      assert_equal "4a07fe31bffcf2888791f3e6cbc9c4545cefe3e8", r4[0]
      assert_equal "7e61ac704deecde634b51e59daa8110435dcb3da", r4[1]
    end

    def test_db_consistent_ordering_init
      assert_nil @repository.extra_info
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal 1, @repository.extra_info["db_consistent"]["ordering"]
    end

    def test_db_consistent_ordering_before_1_2
      assert_nil @repository.extra_info
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      assert_not_nil @repository.extra_info
      h = {}
      h["heads"] = []
      h["branches"] = {}
      h["db_consistent"] = {}
      @repository.merge_extra_info(h)
      @repository.save
      assert_equal NUM_REV, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal 0, @repository.extra_info["db_consistent"]["ordering"]

      extra_info_heads = @repository.extra_info["heads"].dup
      extra_info_heads.delete_if { |x| x == "83ca5fd546063a3c7dc2e568ba3355661a9e2b2c" }
      del_revs = [
          "83ca5fd546063a3c7dc2e568ba3355661a9e2b2c",
          "ed5bb786bbda2dee66a2d50faf51429dbc043a7b",
          "4f26664364207fa8b1af9f8722647ab2d4ac5d43",
          "deff712f05a90d96edbd70facc47d944be5897e3",
          "32ae898b720c2f7eec2723d5bdd558b4cb2d3ddf",
          "7e61ac704deecde634b51e59daa8110435dcb3da",
         ]
      @repository.changesets.each do |rev|
        rev.destroy if del_revs.detect {|r| r == rev.scmid.to_s }
      end
      @project.reload
      cs1 = @repository.changesets
      assert_equal NUM_REV - 6, cs1.count
      assert_equal 0, @repository.extra_info["db_consistent"]["ordering"]

      extra_info_heads << "4a07fe31bffcf2888791f3e6cbc9c4545cefe3e8"
      h = {}
      h["heads"] = extra_info_heads
      @repository.merge_extra_info(h)
      @repository.save
      @project.reload
      assert @repository.extra_info["heads"].index("4a07fe31bffcf2888791f3e6cbc9c4545cefe3e8")
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      assert_equal NUM_HEAD, @repository.extra_info["heads"].size

      assert_equal 0, @repository.extra_info["db_consistent"]["ordering"]
    end

    def test_heads_from_branches_hash
      assert_nil @repository.extra_info
      assert_equal 0, @repository.changesets.count
      assert_equal [], @repository.heads_from_branches_hash
      h = {}
      h["branches"] = {}
      h["branches"]["test1"] = {}
      h["branches"]["test1"]["last_scmid"] = "1234abcd"
      h["branches"]["test2"] = {}
      h["branches"]["test2"]["last_scmid"] = "abcd1234"
      @repository.merge_extra_info(h)
      @repository.save
      @project.reload
      assert_equal ["1234abcd", "abcd1234"], @repository.heads_from_branches_hash.sort
    end

    def test_latest_changesets
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      # with limit
      changesets = @repository.latest_changesets('', 'master', 2)
      assert_equal 2, changesets.size

      # with path
      changesets = @repository.latest_changesets('images', 'master')
      assert_equal [
              'deff712f05a90d96edbd70facc47d944be5897e3',
              '899a15dba03a3b350b89c3f537e4bbe02a03cdc9',
              '7234cb2750b63f47bff735edc50a1c0a433c2518',
          ], changesets.collect(&:revision)

      changesets = @repository.latest_changesets('README', nil)
      assert_equal [
              '32ae898b720c2f7eec2723d5bdd558b4cb2d3ddf',
              '4a07fe31bffcf2888791f3e6cbc9c4545cefe3e8',
              '713f4944648826f558cf548222f813dabe7cbb04',
              '61b685fbe55ab05b5ac68402d5720c1a6ac973d1',
              '899a15dba03a3b350b89c3f537e4bbe02a03cdc9',
              '7234cb2750b63f47bff735edc50a1c0a433c2518',
          ], changesets.collect(&:revision)

      # with path, revision and limit
      changesets = @repository.latest_changesets('images', '899a15dba')
      assert_equal [
              '899a15dba03a3b350b89c3f537e4bbe02a03cdc9',
              '7234cb2750b63f47bff735edc50a1c0a433c2518',
          ], changesets.collect(&:revision)

      changesets = @repository.latest_changesets('images', '899a15dba', 1)
      assert_equal [
              '899a15dba03a3b350b89c3f537e4bbe02a03cdc9',
          ], changesets.collect(&:revision)

      changesets = @repository.latest_changesets('README', '899a15dba')
      assert_equal [
              '899a15dba03a3b350b89c3f537e4bbe02a03cdc9',
              '7234cb2750b63f47bff735edc50a1c0a433c2518',
          ], changesets.collect(&:revision)

      changesets = @repository.latest_changesets('README', '899a15dba', 1)
      assert_equal [
              '899a15dba03a3b350b89c3f537e4bbe02a03cdc9',
          ], changesets.collect(&:revision)

      # with path, tag and limit
      changesets = @repository.latest_changesets('images', 'tag01.annotated')
      assert_equal [
              '899a15dba03a3b350b89c3f537e4bbe02a03cdc9',
              '7234cb2750b63f47bff735edc50a1c0a433c2518',
          ], changesets.collect(&:revision)

      changesets = @repository.latest_changesets('images', 'tag01.annotated', 1)
      assert_equal [
              '899a15dba03a3b350b89c3f537e4bbe02a03cdc9',
          ], changesets.collect(&:revision)

      changesets = @repository.latest_changesets('README', 'tag01.annotated')
      assert_equal [
              '899a15dba03a3b350b89c3f537e4bbe02a03cdc9',
              '7234cb2750b63f47bff735edc50a1c0a433c2518',
          ], changesets.collect(&:revision)

      changesets = @repository.latest_changesets('README', 'tag01.annotated', 1)
      assert_equal [
              '899a15dba03a3b350b89c3f537e4bbe02a03cdc9',
          ], changesets.collect(&:revision)

      # with path, branch and limit
      changesets = @repository.latest_changesets('images', 'test_branch')
      assert_equal [
              '899a15dba03a3b350b89c3f537e4bbe02a03cdc9',
              '7234cb2750b63f47bff735edc50a1c0a433c2518',
          ], changesets.collect(&:revision)

      changesets = @repository.latest_changesets('images', 'test_branch', 1)
      assert_equal [
              '899a15dba03a3b350b89c3f537e4bbe02a03cdc9',
          ], changesets.collect(&:revision)

      changesets = @repository.latest_changesets('README', 'test_branch')
      assert_equal [
              '713f4944648826f558cf548222f813dabe7cbb04',
              '61b685fbe55ab05b5ac68402d5720c1a6ac973d1',
              '899a15dba03a3b350b89c3f537e4bbe02a03cdc9',
              '7234cb2750b63f47bff735edc50a1c0a433c2518',
          ], changesets.collect(&:revision)

      changesets = @repository.latest_changesets('README', 'test_branch', 2)
      assert_equal [
              '713f4944648826f558cf548222f813dabe7cbb04',
              '61b685fbe55ab05b5ac68402d5720c1a6ac973d1',
          ], changesets.collect(&:revision)

      if WINDOWS_PASS
        puts WINDOWS_SKIP_STR
      elsif JRUBY_SKIP
        puts JRUBY_SKIP_STR
      else
        # latin-1 encoding path
        changesets = @repository.latest_changesets(
                      'latin-1-dir/test-Ü-2.txt', '64f1f3e89')
        assert_equal [
              '64f1f3e89ad1cb57976ff0ad99a107012ba3481d',
              '4fc55c43bf3d3dc2efb66145365ddc17639ce81e',
          ], changesets.collect(&:revision)

        changesets = @repository.latest_changesets(
                    'latin-1-dir/test-Ü-2.txt', '64f1f3e89', 1)
        assert_equal [
              '64f1f3e89ad1cb57976ff0ad99a107012ba3481d',
          ], changesets.collect(&:revision)
      end
    end

    def test_latest_changesets_latin_1_dir
      if WINDOWS_PASS
        puts WINDOWS_SKIP_STR
      elsif JRUBY_SKIP
        puts JRUBY_SKIP_STR
      else
        assert_equal 0, @repository.changesets.count
        @repository.fetch_changesets
        @project.reload
        assert_equal NUM_REV, @repository.changesets.count
        changesets = @repository.latest_changesets(
                    'latin-1-dir/test-Ü-subdir', '1ca7f5ed')
        assert_equal [
              '1ca7f5ed374f3cb31a93ae5215c2e25cc6ec5127',
          ], changesets.collect(&:revision)
      end
    end

    def test_find_changeset_by_name
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      ['7234cb2750b63f47bff735edc50a1c0a433c2518', '7234cb2750b'].each do |r|
        assert_equal '7234cb2750b63f47bff735edc50a1c0a433c2518',
                     @repository.find_changeset_by_name(r).revision
      end
    end

    def test_find_changeset_by_empty_name
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      ['', ' ', nil].each do |r|
        assert_nil @repository.find_changeset_by_name(r)
      end
    end

    def test_identifier
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      c = @repository.changesets.find_by_revision(
                          '7234cb2750b63f47bff735edc50a1c0a433c2518')
      assert_equal c.scmid, c.identifier
    end

    def test_format_identifier
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      c = @repository.changesets.find_by_revision(
                          '7234cb2750b63f47bff735edc50a1c0a433c2518')
      assert_equal '7234cb27', c.format_identifier
    end

    def test_activities
      c = Changeset.new(:repository => @repository,
                        :committed_on => Time.now,
                        :revision => 'abc7234cb2750b63f47bff735edc50a1c0a433c2',
                        :scmid    => 'abc7234cb2750b63f47bff735edc50a1c0a433c2',
                        :comments => 'test')
      assert c.event_title.include?('abc7234c:')
      assert_equal 'abc7234cb2750b63f47bff735edc50a1c0a433c2', c.event_url[:rev]
    end

    def test_log_utf8
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      c = @repository.changesets.find_by_revision(
                        'ed5bb786bbda2dee66a2d50faf51429dbc043a7b')
      assert_equal 'Felix Schäfer <felix@fachschaften.org>', c.committer
    end

    def test_previous
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      %w|1ca7f5ed374f3cb31a93ae5215c2e25cc6ec5127 1ca7f5ed|.each do |r1|
        changeset = @repository.find_changeset_by_name(r1)
        %w|64f1f3e89ad1cb57976ff0ad99a107012ba3481d 64f1f3e89ad1|.each do |r2|
          assert_equal @repository.find_changeset_by_name(r2), changeset.previous
        end
      end
    end

    def test_previous_nil
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      %w|7234cb2750b63f47bff735edc50a1c0a433c2518 7234cb275|.each do |r1|
        changeset = @repository.find_changeset_by_name(r1)
        assert_nil changeset.previous
      end
    end

    def test_next
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      %w|64f1f3e89ad1cb57976ff0ad99a107012ba3481d 64f1f3e89ad1|.each do |r2|
        changeset = @repository.find_changeset_by_name(r2)
        %w|1ca7f5ed374f3cb31a93ae5215c2e25cc6ec5127 1ca7f5ed|.each do |r1|
        assert_equal @repository.find_changeset_by_name(r1), changeset.next
        end
      end
    end

    def test_next_nil
      assert_equal 0, @repository.changesets.count
      @repository.fetch_changesets
      @project.reload
      assert_equal NUM_REV, @repository.changesets.count
      %w|2a682156a3b6e77a8bf9cd4590e8db757f3c6c78 2a682156a3b6e77a|.each do |r1|
        changeset = @repository.find_changeset_by_name(r1)
        assert_nil changeset.next
      end
    end
  else
    puts "Git test repository NOT FOUND. Skipping unit tests !!!"
    def test_fake; assert true end
  end
end