4.1.0 breaking changes for Jest testing from importing ESM package

[lee-stevens]

I have an Angular 17 project and was using angular-fusioncharts 4.0.3 with Jest testing.
Upon upgrading to 4.1.0 this morning I have run my usual Jest test command and got this error for every test suite using this library.

Here is the output:

Jest encountered an unexpected token

    Jest failed to parse a file. This happens e.g. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax.

    Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration.

    By default "node_modules" folder is ignored by transformers.

    Here's what you can do:
     • If you are trying to use ECMAScript Modules, see https://jestjs.io/docs/ecmascript-modules for how to enable it. 
     • If you are trying to use TypeScript, see https://jestjs.io/docs/getting-started#using-typescript
     • To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config.
     • If you need a custom transformation specify a "transform" option in your config.
     • If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option.

    You'll find more details and examples of these config options in the docs:
    https://jestjs.io/docs/configuration
    For information about custom transformations, see:
    https://jestjs.io/docs/code-transformation

    Details:

    D:\V7\client\node_modules\@angular\core\fesm2022\testing.mjs:7
    import { ɵDeferBlockState, ɵtriggerResourceLoading, ɵrenderDeferBlockState, ɵCONTAINER_HEADER_OFFSET, ɵgetDeferBlocks, ɵDeferBlockBehavior, InjectionToken, inject as inject$1, ɵNoopNgZone, NgZone, ɵEffectScheduler, ApplicationRef, getDebugNode, RendererFactory2, ɵPendingTasks, ɵstringify, ɵReflectionCapabilities, Directive, Component, Pipe, NgModule, ɵgetAsyncClassMetadataFn, ɵgenerateStandaloneInDeclarationsError, ɵUSE_RUNTIME_DEPS_TRACKER_FOR_JIT, ɵdepsTracker, ɵgetInjectableDef, resolveForwardRef, ɵNG_COMP_DEF, ɵisComponentDefPendingResolution, ɵresolveComponentResources, ɵRender3NgModuleRef, ApplicationInitStatus, LOCALE_ID, ɵDEFAULT_LOCALE_ID, ɵsetLocaleId, ɵRender3ComponentFactory, ɵcompileComponent, ɵNG_DIR_DEF, ɵcompileDirective, ɵNG_PIPE_DEF, ɵcompilePipe, ɵNG_MOD_DEF, ɵtransitiveScopesFor, ɵpatchComponentDefWithScope, ɵNG_INJ_DEF, ɵcompileNgModuleDefs, ɵclearResolutionOfComponentResourcesQueue, ɵrestoreComponentResolutionQueue, provideZoneChangeDetection, Compiler, ɵDEFER_BLOCK_CONFIG, COMPILER_OPTIONS, Injector, ɵisEnvironmentProviders, ɵNgModuleFactory, ModuleWithComponentFactories, ɵconvertToBitFlags, InjectFlags, ɵsetAllowDuplicateNgModuleIdsForTest, ɵresetCompiledComponents, ɵsetUnknownElementStrictMode, ɵsetUnknownPropertyStrictMode, ɵgetUnknownElementStrictMode, ɵgetUnknownPropertyStrictMode, runInInjectionContext, EnvironmentInjector, ɵChangeDetectionScheduler, ɵflushModuleScopingQueueAsMuchAsPossible } from '@angular/core';
    ^^^^^^

    SyntaxError: Cannot use import statement outside a module

      at Runtime.createScriptFromCode (node_modules/jest-runtime/build/index.js:1505:14)
      at Object.<anonymous> (node_modules/@angular-builders/jest/src/jest-config/setup.ts:1:1)