diff --git a/src/pods/user/user.mappers.spec.ts b/src/pods/user/user.mappers.spec.ts
new file mode 100644
index 0000000..34ce733
--- /dev/null
+++ b/src/pods/user/user.mappers.spec.ts
@@ -0,0 +1,73 @@
+import { ObjectId } from 'mongodb';
+import * as model from '#dals/user/user.model.js';
+import * as apiModel from './user.api-model.js';
+import { mapUserFromModelToApi } from './user.mappers.js';
+
+describe('pods/user/user.mappers', () => {
+  describe('mapUserFromModelToApi', () => {
+    it('should return one mapped user when required', () => {
+      // Arrange
+      const user: model.Usuario = {
+        _id: new ObjectId('6543d1516ea297f6f49108e5'),
+        nombre: 'TestName',
+        apellido: 'TestSurname',
+        email: 'test@example.com',
+        telefono: '910000000',
+        movil: '620000000',
+        rol: {
+          id: '677d15fd24c5646a1f7f69c0',
+          nombre: 'Usuario-Administrador',
+        },
+        esResponsable: true,
+        esProponente: true,
+        esAutorizante: false,
+        esContraseñaTemporal: false,
+        contraseña: 'test123',
+        unidad: {
+          id: '677d1539c3cb57a1f7b57e77',
+          nombre: 'Unidad E',
+          code: 'E1',
+        },
+      };
+
+      // Act
+      const result = mapUserFromModelToApi(user);
+
+      // Assert
+      const expectedResult: apiModel.Usuario = {
+        id: '6543d1516ea297f6f49108e5',
+        nombre: 'TestName',
+        apellido: 'TestSurname',
+        email: 'test@example.com',
+        telefono: '910000000',
+        movil: '620000000',
+        rol: {
+          id: '677d15fd24c5646a1f7f69c0',
+          nombre: 'Usuario-Administrador',
+        },
+        esResponsable: true,
+        esProponente: true,
+        esAutorizante: false,
+        unidad: {
+          id: '677d1539c3cb57a1f7b57e77',
+          nombre: 'Unidad E',
+          code: 'E1',
+        },
+      };
+      expect(result).toEqual(expectedResult);
+    });
+
+    it.each<{ user: model.Usuario }>([{ user: undefined }, { user: null }])(
+      'should return undefined when user equals $resource',
+      ({ user }) => {
+        // Arrange
+
+        // Act
+        const result = mapUserFromModelToApi(user);
+
+        // Assert
+        expect(result).toEqual(undefined);
+      }
+    );
+  });
+});
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