Merge pull request #2627 from RedisInsight/bugfix/RI-4893_system_theme

Add matchMedia mock to fix themecomponent tests

Author: vlad-dargel

redisinsight/ui/src/utils/test-utils.tsx

@@ -273,6 +273,17 @@ Object.defineProperty(window, 'sessionStorage', { value: sessionStorageMock })
 const scrollIntoViewMock = jest.fn()
 window.HTMLElement.prototype.scrollIntoView = scrollIntoViewMock
 
+const matchMediaMock = () => ({
+  matches: false,
+  addEventListener: jest.fn(),
+  removeEventListener: jest.fn(),
+})
+
+Object.defineProperty(window, 'matchMedia', {
+  writable: true,
+  value: jest.fn().mockImplementation(query => matchMediaMock(query)),
+})
+
 export const getMswResourceURL = (path: string = '') => RESOURCES_BASE_URL.concat(path)
 export const getMswURL = (path: string = '') =>
   apiService.defaults.baseURL?.concat(path.startsWith('/') ? path.slice(1) : path) ?? ''