diff --git a/packages/core/admin/ee/server/services/__tests__/review-workflows.test.js b/packages/core/admin/ee/server/services/__tests__/review-workflows.test.js
new file mode 100644
index 0000000000..3f563b2b43
--- /dev/null
+++ b/packages/core/admin/ee/server/services/__tests__/review-workflows.test.js
@@ -0,0 +1,83 @@
+'use strict';
+
+const reviewWorkflowsServiceFactory = require('../review-workflows/review-workflows');
+
+const workflowMock = {
+  id: 1,
+};
+const stagesMock = [
+  {
+    id: 1,
+    name: 'stage 1',
+  },
+  {
+    id: 2,
+    name: 'stage 2',
+  },
+  {
+    id: 3,
+    name: 'stage 3',
+  },
+];
+
+const workflowsServiceMock = {
+  count: jest.fn(() => 0),
+  create: jest.fn(() => workflowMock),
+};
+const stagesServiceMock = {
+  count: jest.fn(() => 0),
+  createMany: jest.fn(() => stagesMock),
+};
+
+const strapiMock = {
+  service(serviceName) {
+    switch (serviceName) {
+      case 'admin::stages':
+        return stagesServiceMock;
+      case 'admin::workflows':
+        return workflowsServiceMock;
+      default:
+        return null;
+    }
+  },
+};
+
+const reviewWorkflowsService = reviewWorkflowsServiceFactory({ strapi: strapiMock });
+
+describe('Review workflows service', () => {
+  afterEach(() => {
+    jest.resetAllMocks();
+  });
+
+  describe('bootstrap', () => {
+    test('Without stages or workflows in DB', async () => {
+      await reviewWorkflowsService.bootstrap();
+
+      expect(workflowsServiceMock.count).toBeCalled();
+      expect(stagesServiceMock.count).toBeCalled();
+
+      expect(stagesServiceMock.createMany).toBeCalled();
+      expect(workflowsServiceMock.create).toBeCalled();
+    });
+    test('With a workflow in DB', async () => {
+      workflowsServiceMock.count.mockResolvedValue(1);
+      await reviewWorkflowsService.bootstrap();
+
+      expect(workflowsServiceMock.count).toBeCalled();
+      expect(stagesServiceMock.count).toBeCalled();
+
+      expect(stagesServiceMock.createMany).not.toBeCalled();
+      expect(workflowsServiceMock.create).not.toBeCalled();
+    });
+    test('With stages in DB', async () => {
+      stagesServiceMock.count.mockResolvedValue(5);
+      await reviewWorkflowsService.bootstrap();
+
+      expect(workflowsServiceMock.count).toBeCalled();
+      expect(stagesServiceMock.count).toBeCalled();
+
+      expect(stagesServiceMock.createMany).not.toBeCalled();
+      expect(workflowsServiceMock.create).not.toBeCalled();
+    });
+  });
+});
diff --git a/packages/core/admin/ee/server/services/review-workflows/review-workflows.js b/packages/core/admin/ee/server/services/review-workflows/review-workflows.js
index 6d2c9be7a7..ee52ed556e 100644
--- a/packages/core/admin/ee/server/services/review-workflows/review-workflows.js
+++ b/packages/core/admin/ee/server/services/review-workflows/review-workflows.js
@@ -2,7 +2,12 @@
 
 const { getService } = require('../../utils');
 
-// Map every stage in the array to be ordered in the relation
+/**
+ * Map every stage in the array to be ordered in the relation
+ * @param {Object[]} stages
+ * @param {number} stages.id
+ * @return {Object[]}
+ */
 function buildStagesConnectArray(stages) {
   return stages.map((stage, index) => {
     const connect = {