1 files changed, 130 insertions, 0 deletions

diff --git a/spec/services/issues/build_service_spec.rb b/spec/services/issues/build_service_spec.rb
new file mode 100644
index 00000000000..4cfba35c830
--- /dev/null
+++ b/spec/services/issues/build_service_spec.rb
@@ -0,0 +1,130 @@
+require 'spec_helper.rb'
+
+describe Issues::BuildService, services: true do
+  let(:project) { create(:project) }
+  let(:user) { create(:user) }
+
+  before do
+    project.team << [user, :developer]
+  end
+
+  context 'for discussions in a merge request' do
+    let(:merge_request) { create(:merge_request_with_diff_notes, source_project: project) }
+    let(:issue) { described_class.new(project, user, merge_request_for_resolving_discussions: merge_request).execute }
+
+    def position_on_line(line_number)
+      Gitlab::Diff::Position.new(
+        old_path: "files/ruby/popen.rb",
+        new_path: "files/ruby/popen.rb",
+        old_line: nil,
+        new_line: line_number,
+        diff_refs: merge_request.diff_refs
+      )
+    end
+
+    describe '#items_for_discussions' do
+      it 'has an item for each discussion' do
+        create(:diff_note_on_merge_request, noteable: merge_request, project: merge_request.source_project, position: position_on_line(13))
+        service = described_class.new(project, user, merge_request_for_resolving_discussions: merge_request)
+
+        service.execute
+
+        expect(service.items_for_discussions.size).to eq(2)
+      end
+    end
+
+    describe '#item_for_discussion' do
+      let(:service) { described_class.new(project, user, merge_request_for_resolving_discussions: merge_request) }
+
+      it 'mentions the author of the note' do
+        discussion = Discussion.new([create(:diff_note_on_merge_request, author: create(:user, username: 'author'))])
+        expect(service.item_for_discussion(discussion)).to include('@author')
+      end
+
+      it 'wraps the note in a blockquote' do
+        note_text = "This is a string\n"\
+                    ">>>\n"\
+                    "with a blockquote\n"\
+                    "> That has a quote\n"\
+                    ">>>\n"
+        note_result = "This is a string\n"\
+                    "> with a blockquote\n"\
+                    "> > That has a quote\n"
+        discussion = Discussion.new([create(:diff_note_on_merge_request, note: note_text)])
+        expect(service.item_for_discussion(discussion)).to include(">>>\n#{note_result}\n>>>")
+      end
+    end
+
+    describe '#execute' do
+      it 'has the merge request reference in the title' do
+        expect(issue.title).to include(merge_request.title)
+      end
+
+      it 'has the reference of the merge request in the description' do
+        expect(issue.description).to include(merge_request.to_reference)
+      end
+
+      it 'does not assign title when a title was given' do
+        issue = described_class.new(project, user,
+                                    merge_request_for_resolving_discussions: merge_request,
+                                    title: 'What an issue').execute
+
+        expect(issue.title).to eq('What an issue')
+      end
+
+      it 'does not assign description when a description was given' do
+        issue = described_class.new(project, user,
+                                    merge_request_for_resolving_discussions: merge_request,
+                                    description: 'Fix at your earliest conveignance').execute
+
+        expect(issue.description).to eq('Fix at your earliest conveignance')
+      end
+
+      describe 'with multiple discussions' do
+        before do
+          create(:diff_note_on_merge_request, noteable: merge_request, project: merge_request.target_project, position: position_on_line(15))
+        end
+
+        it 'mentions all the authors in the description' do
+          authors = merge_request.diff_discussions.map(&:author)
+
+          expect(issue.description).to include(*authors.map(&:to_reference))
+        end
+
+        it 'has a link for each unresolved discussion in the description' do
+          notes = merge_request.diff_discussions.map(&:first_note)
+          links = notes.map { |note| Gitlab::UrlBuilder.build(note) }
+
+          expect(issue.description).to include(*links)
+        end
+
+        it 'mentions additional notes' do
+          create_list(:diff_note_on_merge_request, 2, noteable: merge_request, project: merge_request.target_project, position: position_on_line(15))
+
+          expect(issue.description).to include('(+2 comments)')
+        end
+      end
+    end
+  end
+
+  context 'For a merge request without discussions' do
+    let(:merge_request) { create(:merge_request, source_project: project) }
+
+    describe '#execute' do
+      it 'mentions the merge request in the description' do
+        issue = described_class.new(project, user, merge_request_for_resolving_discussions: merge_request).execute
+
+        expect(issue.description).to include("Review the conversation in #{merge_request.to_reference}")
+      end
+    end
+  end
+
+  describe '#execute' do
+    it 'builds a new issues with given params' do
+      issue = described_class.new(project, user, title: 'Issue #1', description: 'Issue description').execute
+
+      expect(issue.title).to eq('Issue #1')
+      expect(issue.description).to eq('Issue description')
+    end
+  end
+end