Recent questions tagged jestjs

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jestjs - Yarn test hangs when one more tests file is added

I'm running a project that has several test suites (Jest), all passing locally. I have a step in my CircleCI ... What am I overlooking? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jestjs - How does one access state on a nested React component wrapped by an HOC?

I'm using Enzyme, and we can actually use the example component given in the docs as a foundation for my ... help would be greatly appreciated! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jestjs - jest global variable example

Can someone give an example on how to use jest globals? { ... "jest": { "globals": { "__DEV__": ... where the globals should be defined? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jestjs - How does jest --findRelatedTests work under the hood?

Find and run the tests that cover a space separated list of source files that were passed in as arguments. ... cache when finding related tests? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jestjs - How to use Jest with React Native

The testing section of the docs for React Native suggest that Jest is the official way to do unit tests. ... like I'm missing something! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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846 views

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jestjs - Loose match one value in jest.toHaveBeenCalledWith

I have an analytics tracker that will only call after 1 second and with an object where the intervalInMilliseconds ( ... useful for my use-case. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jestjs - Jest createSpyObj

With Chai, you can create a spy object as follows: chai.spy.object([ 'push', 'pop' ]); With jasmine, you ... be found in the docs about this. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jestjs - testing private functions in typescript with jest

In the below code my test case was passed as expected but i am using stryker for mutation testing , handleError function ... ) } }); }); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jestjs - How do I run a single test using Jest?

I have a test 'works with nested children' within the file fix-order-test.js. Running the below runs all ... jest 'works with nested children' See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jestjs - Create React App doesn't properly mock modules from __mocks__ directory

I have a working example with Jest and mocks from __mocks__ directory that works : With simple Jest setup // ... App. What's the problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jestjs - Testing MutationObserver with Jest

I wrote a script with the main purpose of adding new elements to some table's cells. The test is done with ... ? Except manually, that is :) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jestjs - Jest gives an error: "SyntaxError: Unexpected token export"

I'm using Jest to test my React app. Recently, I added DeckGL to my app. My tests fail with this error: ... . So any ideas whats going wrong? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jestjs - How to run Jest tests sequentially?

I'm running Jest tests via npm test. Jest runs tests in parallel by default. Is there any way to ... changing the current working directory. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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530 views

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jestjs - Console.log statements output nothing at all in Jest

console.log statements output nothing at all in Jest. This was working for me yesterday, and all of sudden, ... . Still seeing this issue. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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500 views

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jestjs - How can I clear the Jest cache?

Jest is picking up an old version of a package and thus my tests fail unless I use --no-cache. I can even ... how do I clear the Jest cache? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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922 views

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jestjs - Mocking `document` in jest

I'm trying to write tests for my web components projects in jest. I already use babel with es2015 preset. I ... by setting document as global. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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