1 files changed, 79 insertions, 0 deletions
diff --git a/spec/services/issuable/clone/attributes_rewriter_spec.rb b/spec/services/issuable/clone/attributes_rewriter_spec.rb
new file mode 100644
index 00000000000..20bda6984bd
--- /dev/null
+++ b/spec/services/issuable/clone/attributes_rewriter_spec.rb
@@ -0,0 +1,79 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Issuable::Clone::AttributesRewriter do
+  let(:user) { create(:user) }
+  let(:group) { create(:group) }
+  let(:project1) { create(:project, :public, group: group) }
+  let(:project2) { create(:project, :public, group: group) }
+  let(:original_issue) { create(:issue, project: project1) }
+  let(:new_issue) { create(:issue, project: project2) }
+
+  subject { described_class.new(user, original_issue, new_issue) }
+
+  context 'setting labels' do
+    it 'sets labels present in the new project and group labels' do
+      project1_label_1 = create(:label, title: 'label1', project: project1)
+      project1_label_2 = create(:label, title: 'label2', project: project1)
+      project2_label_1 = create(:label, title: 'label1', project: project2)
+      group_label = create(:group_label, title: 'group_label', group: group)
+      create(:label, title: 'label3', project: project2)
+
+      original_issue.update(labels: [project1_label_1, project1_label_2, group_label])
+
+      subject.execute
+
+      expect(new_issue.reload.labels).to match_array([project2_label_1, group_label])
+    end
+
+    it 'does not set any labels when not used on the original issue' do
+      subject.execute
+
+      expect(new_issue.reload.labels).to be_empty
+    end
+
+    it 'copies the resource label events' do
+      resource_label_events = create_list(:resource_label_event, 2, issue: original_issue)
+
+      subject.execute
+
+      expected = resource_label_events.map(&:label_id)
+
+      expect(new_issue.resource_label_events.map(&:label_id)).to match_array(expected)
+    end
+  end
+
+  context 'setting milestones' do
+    it 'sets milestone to nil when old issue milestone is not in the new project' do
+      milestone = create(:milestone, title: 'milestone', project: project1)
+
+      original_issue.update(milestone: milestone)
+
+      subject.execute
+
+      expect(new_issue.reload.milestone).to be_nil
+    end
+
+    it 'copies the milestone when old issue milestone title is in the new project' do
+      milestone_project1 = create(:milestone, title: 'milestone', project: project1)
+      milestone_project2 = create(:milestone, title: 'milestone', project: project2)
+
+      original_issue.update(milestone: milestone_project1)
+
+      subject.execute
+
+      expect(new_issue.reload.milestone).to eq(milestone_project2)
+    end
+
+    it 'copies the milestone when old issue milestone is a group milestone' do
+      milestone = create(:milestone, title: 'milestone', group: group)
+
+      original_issue.update(milestone: milestone)
+
+      subject.execute
+
+      expect(new_issue.reload.milestone).to eq(milestone)
+    end
+  end
+end