comparison .svn/pristine/32/326a62adc02ab48e12d9e9d717fea2e84b8c44cf.svn-base @ 1298:4f746d8966dd redmine_2.3_integration

Merge from redmine-2.3 branch to create new branch redmine-2.3-integration

+# Redmine - project management software
+# Copyright (C) 2006-2013  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
+
+  FELIX_HEX  = "Felix Sch\xC3\xA4fer"
+  CHAR_1_HEX = "\xc3\x9c"
+
+  ## 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
+    @project = Project.find(3)
+    @repository = Repository::Git.create(
+                        :project       => @project,
+                        :url           => REPOSITORY_PATH,
+                        :path_encoding => 'ISO-8859-1'
+                        )
+    assert @repository
+    @char_1        = CHAR_1_HEX.dup
+    if @char_1.respond_to?(:force_encoding)
+      @char_1.force_encoding('UTF-8')
+    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 can't be blank",
+                   repo.errors.full_messages
+  end
+
+  def test_blank_path_to_repository_error_message_fr
+    set_language_if_valid 'fr'
+    str = "Chemin du d\xc3\xa9p\xc3\xb4t doit \xc3\xaatre renseign\xc3\xa9(e)"
+    str.force_encoding('UTF-8') if str.respond_to?(:force_encoding)
+    repo = Repository::Git.new(
+                          :project      => @project,
+                          :url          => "",
+                          :identifier   => 'test',
+                          :path_encoding => ''
+                        )
+    assert !repo.save
+    assert_include str, 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 <[e-mail]>", 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 "2007-12-14 09:22:52".to_time, 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_equal 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_keep_extra_report_last_commit_in_clear_changesets
+      assert_nil @repository.extra_info
+      h = {}
+      h["extra_report_last_commit"] = "1"
+      @repository.merge_extra_info(h)
+      @repository.save
+      @project.reload
+
+      assert_equal 0, @repository.changesets.count
+      @repository.fetch_changesets
+      @project.reload
+
+      assert_equal NUM_REV, @repository.changesets.count
+      @repository.send(:clear_changesets)
+      assert_equal 1, @repository.extra_info.size
+      assert_equal "1", @repository.extra_info["extra_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-#{@char_1}-2.txt", '64f1f3e89')
+        assert_equal [
+              '64f1f3e89ad1cb57976ff0ad99a107012ba3481d',
+              '4fc55c43bf3d3dc2efb66145365ddc17639ce81e',
+          ], changesets.collect(&:revision)
+
+        changesets = @repository.latest_changesets(
+                    "latin-1-dir/test-#{@char_1}-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-#{@char_1}-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
+      str_felix_hex  = FELIX_HEX.dup
+      if str_felix_hex.respond_to?(:force_encoding)
+          str_felix_hex.force_encoding('UTF-8')
+      end
+      c = @repository.changesets.find_by_revision(
+                        'ed5bb786bbda2dee66a2d50faf51429dbc043a7b')
+      assert_equal "#{str_felix_hex} <[e-mail]>", 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