Fixing issue with asynchronously writing test files

[PrabhuKathiresan]

Hi Team,

I am able to see few lines of code gets added at the end of my test file that is generated as shown in the image.

As I tracked down this issue I found the writing the test file content asynchronously causing this issue and once I re wrote the code as

for (var i = 0; i < compiled.length; i++) {
              const testObj = compiled[i];
              fs.writeFileSync(join(options.writeTo, testObj.filename), testObj.contents)
            }

It seems to be working fine.

Please evaluate and make required changes

Thank you.

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[PrabhuKathiresan]

I signed it!

[googlebot]

CLAs look good, thanks!

[noahdietz]

Thanks! Released in v1.2.4 patch.