Creates /create_merge_request quickaction

With this quick action the user can create a new MR starting from
the current issue using as `source_branch` the given `branch name` and
as `target_branch` the project default branch. If the `branch name` is
omitted a name is automatically created starting from the issue title.

1 files changed, 53 insertions, 0 deletions

diff --git a/spec/services/quick_actions/interpret_service_spec.rb b/spec/services/quick_actions/interpret_service_spec.rb
index 5a7cafcb60f..938764f40b0 100644
--- a/spec/services/quick_actions/interpret_service_spec.rb
+++ b/spec/services/quick_actions/interpret_service_spec.rb
@@ -1222,6 +1222,37 @@ describe QuickActions::InterpretService do
       expect(commands).to be_empty
       expect(text).to eq("#{described_class::SHRUG}\n/close")
     end
+
+    context '/create_merge_request command' do
+      let(:branch_name) { '1-feature' }
+      let(:content) { "/create_merge_request #{branch_name}" }
+      let(:issuable) { issue }
+
+      context 'if issuable is not an Issue' do
+        let(:issuable) { merge_request }
+
+        it_behaves_like 'empty command'
+      end
+
+      context "when logged user cannot create_merge_requests in the project" do
+        let(:project) { create(:project, :archived) }
+
+        it_behaves_like 'empty command'
+      end
+
+      context 'when logged user cannot push code to the project' do
+        let(:project) { create(:project, :private) }
+        let(:service) { described_class.new(project, create(:user)) }
+
+        it_behaves_like 'empty command'
+      end
+
+      it 'populates create_merge_request with branch_name and issue iid' do
+        _, updates = service.execute(content, issuable)
+
+        expect(updates).to eq(create_merge_request: { branch_name: branch_name, issue_iid: issuable.iid })
+      end
+    end
   end
 
   describe '#explain' do
@@ -1473,5 +1504,27 @@ describe QuickActions::InterpretService do
         end
       end
     end
+
+    describe 'create a merge request' do
+      context 'with no branch name' do
+        let(:content) { '/create_merge_request' }
+
+        it 'uses the default branch name' do
+          _, explanations = service.explain(content, issue)
+
+          expect(explanations).to eq(['Creates a branch and a merge request to resolve this issue'])
+        end
+      end
+
+      context 'with a branch name' do
+        let(:content) { '/create_merge_request foo' }
+
+        it 'uses the given branch name' do
+          _, explanations = service.explain(content, issue)
+
+          expect(explanations).to eq(["Creates branch 'foo' and a merge request to resolve this issue"])
+        end
+      end
+    end
   end
 end