Migrate from Jest to Vitest

This migrates our tests from using the Jest testing framework to Vitest.

src/test/.eslintrc

@@ -1,6 +1,5 @@
 {
   "env": {
-    "jest": true,
     "es6": true
   },
   "plugins": [

src/test/jest.setup.js

@@ -1,72 +0,0 @@
-import 'whatwg-fetch';
-//Needed for correct jest extends types
-import '@testing-library/jest-dom';
-import failOnConsole from 'jest-fail-on-console';
-
-import { server } from './mocks/server';
-
-// ResizeObserver is needed for responsive Chart.js charts.
-// As it's not defined in jsdom it needs to be mocked or polyfilled
-// Following is the minimal mock implementation needed for
-// the tests to run correctly
-global.ResizeObserver = jest.fn().mockImplementation(() => ({
-  observe: jest.fn(),
-  unobserve: jest.fn(),
-  disconnect: jest.fn(),
-}));
-
-// or with options:
-failOnConsole({
-  shouldFailOnWarn: false,
-  silenceMessage: (errorMessage) => {
-    if (
-      // Upgrading @patternfly/react-core caused propTypes error in Pf4FormTemplate
-      // https://github.com/data-driven-forms/react-forms/issues/1352
-      errorMessage.includes(
-        'Failed prop type: Invalid prop `FormWrapper` supplied to `FormTemplate`, expected one of type [function].'
-      )
-    ) {
-      // eslint-disable-next-line no-console
-      console.log(
-        'Suppressed error',
-        'Failed prop type: Invalid prop `FormWrapper` supplied to `FormTemplate`, expected one of type [function]',
-        'see [https://github.com/data-driven-forms/react-forms/issues/1352]'
-      );
-      return true;
-    }
-    // TODO [2023-08] CreateImageWizard warnings to be fixed later.
-    if (
-      errorMessage.includes('CreateImageWizard') &&
-      (errorMessage.includes(
-        'Cannot update a component (`ReactFinalForm`) while rendering a different component (`TargetEnvironment`)'
-      ) ||
-        errorMessage.includes(
-          'Cannot update a component (`TextField`) while rendering a different component (`TextField`). To locate the bad setState() call inside `TextField`'
-        ) ||
-        errorMessage.includes(
-          'Cannot update a component (`TextField`) while rendering a different component (`FormSpy`)'
-        ) ||
-        errorMessage.includes(
-          "Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application."
-        ) ||
-        // [2023-09] Suppresses an error that occurs on the GCP step of the Wizard.
-        errorMessage.includes(
-          'Warning: Cannot update a component (`ForwardRef(Field)`) while rendering a different component (`Radio`). To locate the bad setState() call inside `Radio`, follow the stack trace as described in https://reactjs.org/link/setstate-in-render'
-        ))
-    ) {
-      // eslint-disable-next-line no-console
-      console.warn(errorMessage);
-      return true;
-    }
-    return false;
-  },
-});
-
-jest.mock('@unleash/proxy-client-react', () => ({
-  useUnleashContext: () => jest.fn(),
-  useFlag: jest.fn(() => true),
-}));
-
-beforeAll(() => server.listen());
-afterEach(() => server.resetHandlers());
-afterAll(() => server.close());

src/test/setup.ts

@@ -0,0 +1,5 @@
+import { server } from './mocks/server';
+
+beforeAll(() => server.listen({ onUnhandledRequest: 'error' }));
+afterAll(() => server.close());
+afterEach(() => server.resetHandlers());