TestCafe can't run tests if 'tests' argument is a directory with large number of files

[AlexanderMoskovkin]

Are you requesting a feature or reporting a bug?

bug

What is the current behavior?

testcafe chrome <directory-with-node_modules-and-tests>

Error: Cannot find a test source file at "...\node_modules\testcafe-legacy-api\node_modules\core0js\modules\$.property-desc.js"

What is the expected behavior?

It was ok on the previous version

Specify your

• testcafe version: 0.12.0-alpha2

[AlexanderMoskovkin]

I'm working on this

[AlexanderMoskovkin]

I've found the cause of the problem.

When you pass to much files to compile (> 8000 in my case) the Compiler try to read and compile all of them at the same time (via Promise.all). As a result a EMFILE, too many open files error is raised here.

There are two ways to fix it:

1. Create custom logic to not parse more than <some_count> files at the same time (for example 1000)
2. Use graceful-fs

I prefer the second. @inikulin are you agree?

[AlexanderMoskovkin]

It seems the second way doesn't work when files too much (about 30000). Also I don't think it a nice idea to try to read so much files at the same time

[lock]

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