### Project Details >Jest is used by Facebook to test all JavaScript code including React applications. One of Jest's philosophies is to provide an integrated "zero-configuration" experience. We observed that when engineers are provided with ready-to-use tools, they end up writing more tests, which in turn results in more stable and healthy code bases. >Jest parallelizes test runs across workers to maximize performance. Console messages are buffered and printed together with test results. Sandboxed test files and automatic global state resets for every test so no two tests conflict with each other. [Source](http://facebook.github.io/jest/) ### Source Language English ### Number of Words I translate a total of 1269 words. ### Translated Language I contribute to Indonesian Language and translated the file 'docs/en/ExpectAPI.md'. The project is huge, it still needs 44658 words to translate. ### Before Translation https://image.prntscr.com/image/mc7uuhUVTL_YuuB6uILRdQ.png https://image.prntscr.com/image/E4YtuiOmQ8ubw6X4O3WXng.png - docs/en/ExpectAPI.md from 50% https://image.prntscr.com/image/6MZg1jqCQpmcHzNuZrBfsg.png
### After Translation https://image.prntscr.com/image/8mtnzGB_TgWjLIQ4jvwHTg.png https://image.prntscr.com/image/U0On44MeQkKHU_pb-NYrpg.png - docs/en/ExpectAPI.md to 70% https://image.prntscr.com/image/1gqOhtdBSKejMLTKap8T9w.png docs/en/ExpectAPI.md : https://crowdin.com/translate/jest/244/en-id ### Links [Check my Activity in Jest](https://crowdin.com/project/jest/activity_stream) [My Profile Activity as Translator](https://crowdin.com/profile/walterz/activity) [Project Profile Link](https://crowdin.com/project/jest) [GitHub Project Link](https://github.com/facebook/jest) [Crowdin Indonesian Translation](https://crowdin.com/project/jest/id#) [Part1](https://steemit.com/utopian-io/@walterz/translating-1178-words-of-jest-english-to-indonesian-part-1), [Part2](https://steemit.com/utopian-io/@walterz/translating-1091-words-of-jest-english-to-indonesian-part-2), [Part3](https://steemit.com/utopian-io/@walterz/translating-1075-words-of-jest-english-to-indonesian-part-3), [Part4](https://steemit.com/utopian-io/@walterz/translating-1238-words-of-jest-english-to-indonesian-part-4), [Part5](https://steemit.com/utopian-io/@walterz/translating-1227-words-of-jest-english-to-indonesian-part-5), [Part6](https://steemit.com/utopian-io/@walterz/translating-1218-words-of-jest-english-to-indonesian-part-6), [Part7](https://steemit.com/utopian-io/@walterz/translating-1270-words-of-jest-english-to-indonesian-part-7) ### Examples Use .toThrowErrorMatchingSnapshot to test that a function throws an error matching the most recent snapshot when it is called. >Gunakan .toThrowErrorMatchingSnapshot untuk menguji bahwa sebuah fungsi melemparkan sebuah kesalahan yang sesuai dengan hampir semua potret terbaru ketika dipanggil. When you're writing tests, you often need to check that values meet certain conditions. expect gives you access to a number of "matchers" that let you validate different things. >Ketika anda sedang menulis sebuah percobaan, anda sering harus memeriksa bahwa nilai harus memenuhi kondisi tertentu. expect memberikan anda akses ke sejumlah "matchers" yang mengizinkan anda untuk mengesahkan hal-hal yang berbeda. For an individual test file, an added module precedes any modules from snapshotSerializers configuration, which precede the default snapshot serializers for built-in JavaScript types and for React elements. >Untuk sebuah berkas percobaan yang tersendiri, sebuah modul yang ditambahkan mendahulukan modul apa pun dari pengaturan snapshotSerializers, yang mendahulukan potret bersambung bawaan untuk tipe JavaScript built-in dan untuk elemen React. If you know how to test something, .not lets you test its opposite. For example, this code tests that the best La Croix flavor is not coconut: >Jika anda tahu bagaimana cara menguji sesuatu, .not mengizinkan anda untuk menguji kebalikannya. Sebagai contoh, kode ini menguji bahwa rasa La Croix terbaik bukanlah kelapa:

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