Bug: jasmine-marbles with jest

[Bielik20]

Description

nrwl: 6.4.0
test-runner: jest

const value = of('foo');
const expected = of('foo');
expect(value).toBeObservable(expected);

Current Behavior

jasmine-marbles does not work with jest. When running tests I get TypeError: expect(...).toBeObservable is not a function.

Expected Behavior

jasmine-marbles should work with jest.

Rationale

When following the jest-preset-angular guide and adding jest to a standard angular-cli project jasmine-marbles work as expected. But when using nx built-in support for jest jasmine-marbles do not work.

I think it is worth noting that VSCode detects that test methods (expect, describe etc.) are from jest in an nx project. However, in an angular-cli project it points to @types/jasmine.

Alternatives

jest-marbles work but lack some of jasmine-marbles functionalities.

[FrozenPandaz]

Fixed by:

CodeSequence/jasmine-marbles@2bc640e

You can now use jasmine-marbles with jest 🎉

Re: I think it is worth noting that VSCode detects that test methods (expect, describe etc.) are from jest in an nx project. However, in an angular-cli project it points to @types/jasmine.

Refer to #816

[github-actions]

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