Merged r11513 from trunk (#13328).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@11515 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/issue_test.rb

@@ -849,6 +849,49 @@ class IssueTest < ActiveSupport::TestCase
     assert_equal copy.author, child_copy.author
   end
 
+  def test_copy_as_a_child_of_copied_issue_should_not_copy_itself
+    parent = Issue.generate!
+    child1 = Issue.generate!(:parent_issue_id => parent.id, :subject => 'Child 1')
+    child2 = Issue.generate!(:parent_issue_id => parent.id, :subject => 'Child 2')
+
+    copy = parent.reload.copy
+    copy.parent_issue_id = parent.id
+    copy.author = User.find(7)
+    assert_difference 'Issue.count', 3 do
+      assert copy.save
+    end
+    parent.reload
+    copy.reload
+    assert_equal parent, copy.parent
+    assert_equal 3, parent.children.count
+    assert_equal 5, parent.descendants.count
+    assert_equal 2, copy.children.count
+    assert_equal 2, copy.descendants.count
+  end
+
+  def test_copy_as_a_descendant_of_copied_issue_should_not_copy_itself
+    parent = Issue.generate!
+    child1 = Issue.generate!(:parent_issue_id => parent.id, :subject => 'Child 1')
+    child2 = Issue.generate!(:parent_issue_id => parent.id, :subject => 'Child 2')
+
+    copy = parent.reload.copy
+    copy.parent_issue_id = child1.id
+    copy.author = User.find(7)
+    assert_difference 'Issue.count', 3 do
+      assert copy.save
+    end
+    parent.reload
+    child1.reload
+    copy.reload
+    assert_equal child1, copy.parent
+    assert_equal 2, parent.children.count
+    assert_equal 5, parent.descendants.count
+    assert_equal 1, child1.children.count
+    assert_equal 3, child1.descendants.count
+    assert_equal 2, copy.children.count
+    assert_equal 2, copy.descendants.count
+  end
+
   def test_copy_should_copy_subtasks_to_target_project
     issue = Issue.generate_with_descendants!