1 files changed, 144 insertions, 0 deletions
diff --git a/spec/services/files/multi_service_spec.rb b/spec/services/files/multi_service_spec.rb
new file mode 100644
index 00000000000..085a28d267f
--- /dev/null
+++ b/spec/services/files/multi_service_spec.rb
@@ -0,0 +1,144 @@
+require "spec_helper"
+
+describe Files::MultiService do
+  subject { described_class.new(project, user, commit_params) }
+
+  let(:project) { create(:project, :repository) }
+  let(:user) { create(:user) }
+  let(:branch_name) { project.default_branch }
+  let(:original_file_path) { 'files/ruby/popen.rb' }
+  let(:new_file_path) { 'files/ruby/popen.rb' }
+  let(:action) { 'update' }
+
+  let!(:original_commit_id) do
+    Gitlab::Git::Commit.last_for_path(project.repository, branch_name, original_file_path).sha
+  end
+
+  let(:actions) do
+    [
+      {
+        action: action,
+        file_path: new_file_path,
+        previous_path: original_file_path,
+        content: 'New content',
+        last_commit_id: original_commit_id
+      }
+    ]
+  end
+
+  let(:commit_params) do
+    {
+      commit_message: "Update File",
+      branch_name: branch_name,
+      start_branch: branch_name,
+      actions: actions
+    }
+  end
+
+  before do
+    project.team << [user, :master]
+  end
+
+  describe '#execute' do
+    context 'with a valid action' do
+      it 'returns a hash with the :success status ' do
+        results = subject.execute
+
+        expect(results[:status]).to eq(:success)
+      end
+    end
+
+    context 'with an invalid action' do
+      let(:action) { 'rename' }
+
+      it 'returns a hash with the :error status ' do
+        results = subject.execute
+
+        expect(results[:status]).to eq(:error)
+        expect(results[:message]).to match(/Unknown action/)
+      end
+    end
+
+    describe 'Updating files' do
+      context 'when the file has been previously updated' do
+        before do
+          update_file(original_file_path)
+        end
+
+        it 'rejects the commit' do
+          results = subject.execute
+
+          expect(results[:status]).to eq(:error)
+          expect(results[:message]).to match(new_file_path)
+        end
+      end
+
+      context 'when the file have not been modified' do
+        it 'accepts the commit' do
+          results = subject.execute
+
+          expect(results[:status]).to eq(:success)
+        end
+      end
+    end
+
+    context 'when moving a file' do
+      let(:action) { 'move' }
+      let(:new_file_path) { 'files/ruby/new_popen.rb' }
+
+      context 'when original file has been updated' do
+        before do
+          update_file(original_file_path)
+        end
+
+        it 'rejects the commit' do
+          results = subject.execute
+
+          expect(results[:status]).to eq(:error)
+          expect(results[:message]).to match(original_file_path)
+        end
+      end
+
+      context 'when original file have not been updated' do
+        it 'moves the file' do
+          results = subject.execute
+          blob = project.repository.blob_at_branch(branch_name, new_file_path)
+
+          expect(results[:status]).to eq(:success)
+          expect(blob).to be_present
+        end
+      end
+    end
+
+    context 'when file status validation is skipped' do
+      let(:action) { 'create' }
+      let(:new_file_path) { 'files/ruby/new_file.rb' }
+
+      it 'does not check the last commit' do
+        expect(Gitlab::Git::Commit).not_to receive(:last_for_path)
+
+        subject.execute
+      end
+
+      it 'creates the file' do
+        subject.execute
+
+        blob = project.repository.blob_at_branch(branch_name, new_file_path)
+
+        expect(blob).to be_present
+      end
+    end
+  end
+
+  def update_file(path)
+    params = {
+      file_path: path,
+      start_branch: branch_name,
+      branch_name: branch_name,
+      commit_message: 'Update file',
+      file_content: 'New content'
+    }
+
+    Files::UpdateService.new(project, user, params).execute
+  end
+end