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@kamilogorek
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Completely custom test runner and integration tests for Next.js application. Covers both, server and browser environments.
Currently implements the most common use cases of error handling, tracing, and sessions, but the suites are definitely non-exhaustive.

Application has to be pre-built using yarn build (covered by the npm run test:integration) and tests can be run using node directly or through npm scripts. The runner allows for filtering specific test cases and provides debug mode for logging intercepted requests and enabling console logs.

$ npm run test:integration
$ npm run test:integration:server
$ npm run test:integration:browser
Usage: node test/integration/[server|browser].js <filename>

ENV Variables:
DEBUG=[bool] - enable request and application logs
DEBUG_DEPTH=[int] - set logging depth

Arguments:
<filename> - filter tests based on filename partial match

Only the second commit is reviewable. The first one is completely isolated example app and it doesn't require a review, although feel free to do so if you feel like it.

@kamilogorek kamilogorek requested review from a team, AbhiPrasad and iker-barriocanal and removed request for a team June 1, 2021 12:42
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github-actions bot commented Jun 1, 2021

size-limit report

Path Size
@sentry/browser - CDN Bundle (gzipped) 20.83 KB (-0.01% 🔽)
@sentry/browser - Webpack 22.07 KB (0%)
@sentry/react - Webpack 22.11 KB (0%)
@sentry/browser + @sentry/tracing - CDN Bundle (gzipped) 28.23 KB (0%)

@kamilogorek kamilogorek force-pushed the nextjs-tests branch 2 times, most recently from b694ec3 to 7ac9d4c Compare June 1, 2021 13:27
let scenarios = await fs.readdir(path.resolve(__dirname, './server'));

if (FILES_FILTER) {
scenarios = scenarios.filter(file => file.toLowerCase().includes(FILES_FILTER));
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Why filtering without considering the case? Also, any condition that's not the exact same (partial) match should be documented on line 19.

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Purely for convinience. It just annoyed me that I typed node server.js api and it didn't find the test ¯_(ツ)_/¯
I dont understand the second part of your feedback. Line 19 states that it'll match on partials 🤔

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What I understand from "partial match" is it can be a substring, not that we're not considering the case. I'm good for not considering it, but I feel we should not that.

if (
isSentryRequest(request) ||
// Used for testing http tracing
request.url().includes('example.com')
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example.com (http://example.com in other places) is required, or can any URL be used? If it has to be this one, is there any other way to use (or modify) it, instead of hardcoding it everywhere?

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Added missing protocol. Any URL can be used, but it has to match, that's why I used the same one everywhere.

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@iker-barriocanal iker-barriocanal left a comment

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LGTM.

return true;
};

// Misc
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I'd separate this misc stuff from the server stuff into two separate files, but this is a minor thing.

@kamilogorek kamilogorek merged commit 17b12e1 into master Jun 2, 2021
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4 participants