diff --git a/modules/worker/back/methods/worker-time-control/specs/sendMail.spec.js b/modules/worker/back/methods/worker-time-control/specs/sendMail.spec.js
new file mode 100644
index 000000000..133d7271c
--- /dev/null
+++ b/modules/worker/back/methods/worker-time-control/specs/sendMail.spec.js
@@ -0,0 +1,20 @@
+const models = require('vn-loopback/server/server').models;
+
+describe('sendMail', () => {
+    it('should insert in mail', async() => {
+        const ctx = {
+            req: {accessToken: {userId: 50}},
+            args: {workerFk: 1106, year: 2001, week: 1}
+        };
+        const tx = await models.Sale.beginTransaction({});
+        const options = {transaction: tx};
+        options.transaction = tx;
+
+        const mailCountBefore = await models.Mail.count(options);
+        await models.WorkerTimeControl.sendMail(ctx, options);
+        const mailCountAfter = await models.Mail.count(options);
+
+        expect(mailCountAfter).toBeGreaterThan(mailCountBefore);
+        await tx.rollback();
+    });
+});