refactor(test): heavily simplify the context helper #404
Merged
ezolenko merged 2 commits intoezolenko:masterfrom Aug 25, 2022
Merged
refactor(test): heavily simplify the context helper #404ezolenko merged 2 commits intoezolenko:masterfrom
context helper #404ezolenko merged 2 commits intoezolenko:masterfrom
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agilgur5
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- since we're type-casting it anyway, we can heavily simplify this and remove the stubs entirely
- they're actually unused in the unit tests, so we don't need them at all
- besides the type-checking, which we force with a cast anyway
- the `as unknown as` is bad practice, and probably why I didn't use it initially (plus other typing issues), but it's much simpler this way and reflects the intent better -- just making it type-check with the few properties we use
- we can also use Jest mocks directly instead of the hacky `contextualLogger` and passing `data` in
- `makeContext` now creates the mocks, so we just need to check against `context.error` etc
- this is _much_ more familiar as it's what we use in the source and follows idiomatic Jest
- rewrite all the checks to test against the mocks instead
- I thought this felt too complicated / verbose before, but I had left this as is from brekk's initial test structure
- now that I understand all the tests and test intent much better, I could rewrite this to be a good bit simpler
- make the `toBeFalsy()` checks more precise by checking that the mock _wasn't_ called
- it returns `void` anyway, so `toBeFalsy()` _always_ returns true; it's not much of a test
- checking that the low verbosity level didn't trigger the mock to be called actually checks the test's intent
- `get-options-overrides`'s coverage func % decreased bc funcs passed to `context.debug` weren't being called
- took me a bit to notice too since we have no coverage checks
- and then another bit to realize _why_ it decreased
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NOTE: this is built on top of #397 as that also uses thecontexthelper. It may also merge conflict with #396 if that is merged. As such, I've marked this PR as "Draft" until those PRs are merged (or otherwise closed).Rebased on top, fixed merge conflicts, and marked as ready for review.
Summary
Significantly simplify the
contexthelper used in the unit tests with more forceful type-casting and directly using Jest mocks. This makes all usage ofcontextsignificantly easier and less hacky, as can be seen in the changed tests here.Details
since we're type-casting it anyway, we can heavily simplify this and remove the stubs entirely
as unknown asis bad practice, and probably why I didn't use it initially (plus other typing issues), but it's much simpler this way and reflects the intent better -- just making it type-check with the few properties we usewe can also use Jest mocks directly instead of the hacky
contextualLoggerand passingdatainmakeContextnow creates the mocks, so we just need to check againstcontext.erroretcmake the
toBeFalsy()checks more precise by checking that the mock wasn't calledvoidanyway, sotoBeFalsy()always returns true; it's not much of a test