ES5 target support + Angular 10 Support

[icorne]

Hello,

This is the only library I encountered thus far that does not support ES5 target anymore..
Could it be because in https://github.com/satanTime/ng-mocks/blob/83debd26ac89ed5ae5efb3c9be8ce7ad91ad6c64/e2e/a10es2015ivy/.browserslistrc you excluded IE11?

Can we try and revisit this?

[satanTime]

Hi,

the lib does support es5, but angular 10 doesn't support it and always uses es2015 version of an imported lib.

I spent around 2 weeks to determine a solution and failed with every idea.

Feel free to try to fix it yourself, perhaps you'll find a working solution.

The link you provided is E2E test, there's a version for es5 too: https://github.com/satanTime/ng-mocks/blob/83debd26ac89ed5ae5efb3c9be8ce7ad91ad6c64/e2e/a10es5ivy/.browserslistrc

[icorne]

I can have a look when I find some time.
Where did you find that angular 10 does not support ES5 target?
We've got a pretty extensive app (hybrid with angularjs even) and everything is working except my tests which use ng-mocks.

[satanTime]

During investigation, starting from angular 10 it ignores es5 build even it has been provided: https://github.com/ike18t/ng-mocks/blob/master/package.json#L5-L8.

I think in your app dependencies don't extend code base built by es5 and es2015, in case of ng-mocks if a component was built as es2015 and ng-mocks was built as es5 then it throws an error that an instance can't be created without using new operator that is required in es2015. Because es2015 is more popular it is the default build target.

Perhaps there's a way to downgrade to es5 not only the app itself, but also installed dependencies.

Current solution is to change tsconfig.spec.ts to use es2015.

[satanTime]

Note: As an option to try: eval with detection of es6 classes.

[satanTime]

Hi, might you check that #161 works for you on es5?