fix: unit tests

Author: astandrik

config-overrides.js

@@ -58,7 +58,7 @@ module.exports = {
         // By default jest does not transform anything in node_modules
         // So this override excludes node_modules except @gravity-ui
         // see https://github.com/timarney/react-app-rewired/issues/241
-        config.transformIgnorePatterns = ['node_modules/(?!(@gravity-ui)/)'];
+        config.transformIgnorePatterns = ['node_modules/(?!(@gravity-ui|@mjackson)/)'];
 
         // Add .github directory to roots
         config.roots = ['<rootDir>/src', '<rootDir>/.github'];

src/services/api/streaming.ts

@@ -1,4 +1,3 @@
-// eslint-disable-next-line import/no-extraneous-dependencies
 import {parseMultipart} from '@mjackson/multipart-parser';
 import qs from 'qs';
 

src/setupTests.js

@@ -1,4 +1,4 @@
-/* eslint-disable import/order */
+/* eslint-disable import/order, no-undef */
 // jest-dom adds custom jest matchers for asserting on DOM nodes.
 // allows you to do things like:
 // expect(element).toHaveTextContent(/react/i)
@@ -14,3 +14,8 @@ configureUiKit({lang: Lang.En});
 // only to prevent warnings from history lib
 // all api calls in tests should be mocked
 window.custom_backend = '/';
+
+// Mock multipart-parser globally for all tests
+jest.mock('@mjackson/multipart-parser', () => ({
+    parseMultipart: jest.fn(),
+}));