Add top-level /merge_requests API endpoint

And add support for additional query parameters:
- `author_id`: Returns merge requests created by the given user `id`
- `assignee_id`: Returns merge requests assigned to the given user `id`
- `scope`: Return merge requests for the given scope: `created-by-me`, `assigned-to-me` or `all`

1 files changed, 83 insertions, 0 deletions

diff --git a/spec/requests/api/merge_requests_spec.rb b/spec/requests/api/merge_requests_spec.rb
index 35b6522ea98..02daca0d11d 100644
--- a/spec/requests/api/merge_requests_spec.rb
+++ b/spec/requests/api/merge_requests_spec.rb
@@ -26,6 +26,89 @@ describe API::MergeRequests do
     project.team << [user, :reporter]
   end
 
+  describe 'GET /merge_requests' do
+    context 'when unauthenticated' do
+      it 'returns authentication error' do
+        get api('/merge_requests')
+
+        expect(response).to have_http_status(401)
+      end
+    end
+
+    context 'when authenticated' do
+      let!(:project2) { create(:empty_project, :public, namespace: user.namespace) }
+      let!(:merge_request2) { create(:merge_request, :simple, author: user, assignee: user, source_project: project2, target_project: project2) }
+      let(:user2) { create(:user) }
+
+      it 'returns an array of all merge requests' do
+        get api('/merge_requests', user)
+
+        expect(response).to have_http_status(200)
+        expect(response).to include_pagination_headers
+        expect(json_response).to be_an Array
+        expect(json_response.map { |mr| mr['id'] })
+          .to contain_exactly(merge_request.id, merge_request_closed.id, merge_request_merged.id, merge_request2.id)
+      end
+
+      it 'does not return unauthorized merge requests' do
+        private_project = create(:empty_project, :private)
+        merge_request3 = create(:merge_request, :simple, source_project: private_project, target_project: private_project, source_branch: 'other-branch')
+
+        get api('/merge_requests', user)
+
+        expect(response).to have_http_status(200)
+        expect(response).to include_pagination_headers
+        expect(json_response).to be_an Array
+        expect(json_response.map { |mr| mr['id'] })
+          .not_to include(merge_request3.id)
+      end
+
+      it 'returns an array of merge requests authored by the given user' do
+        merge_request3 = create(:merge_request, :simple, author: user2, assignee: user, source_project: project2, target_project: project2, source_branch: 'other-branch')
+
+        get api('/merge_requests', user), author_id: user2.id
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.length).to eq(1)
+        expect(json_response.first['id']).to eq(merge_request3.id)
+      end
+
+      it 'returns an array of merge requests assigned to the given user' do
+        merge_request3 = create(:merge_request, :simple, author: user, assignee: user2, source_project: project2, target_project: project2, source_branch: 'other-branch')
+
+        get api('/merge_requests', user), assignee_id: user2.id
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.length).to eq(1)
+        expect(json_response.first['id']).to eq(merge_request3.id)
+      end
+
+      it 'returns an array of merge requests assigned to me' do
+        merge_request3 = create(:merge_request, :simple, author: user, assignee: user2, source_project: project2, target_project: project2, source_branch: 'other-branch')
+
+        get api('/merge_requests', user2), scope: 'assigned-to-me'
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.length).to eq(1)
+        expect(json_response.first['id']).to eq(merge_request3.id)
+      end
+
+      it 'returns an array of merge requests created by me' do
+        merge_request3 = create(:merge_request, :simple, author: user2, assignee: user, source_project: project2, target_project: project2, source_branch: 'other-branch')
+
+        get api('/merge_requests', user2), scope: 'created-by-me'
+
+        expect(response).to have_http_status(200)
+        expect(json_response).to be_an Array
+        expect(json_response.length).to eq(1)
+        expect(json_response.first['id']).to eq(merge_request3.id)
+      end
+    end
+  end
+
   describe "GET /projects/:id/merge_requests" do
     context "when unauthenticated" do
       it "returns authentication error" do