build & tests tools in hls.js

[sparrowscout]

Hello, I'm interested in SDK development and I'm studying build and test tools.
I'm learning basics, so it may silly questions.
Could you please explain why you chose rollup + babel as your build tools and karma + mocha as your test tools, instead of something like rollup + SWC or karma + jasmine? I'm curious about the reasons behind this tool combination. Also, I'd like to check the test coverage within hls.js. How can I do that?

[robwalch]

Could you please explain why you chose rollup + babel as your build tools and karma + mocha as your test tools, instead of something like rollup + SWC or karma + jasmine?

Rollup provides the cleanest JavaScript output without adding any additional boiler plate for module import/export. We recently switched from webpack to rollup with #5299.

Babel does exactly what we need - I don't see any compelling reason to change. I don't think SWC was even an option when we adopted Babel.

The test framework and tools are maybe not the slickest, but they still work, and are easier to maintain than replace.

I'd like to check the test coverage within hls.js. How can I do that?

After running unit tests with npm run test:unit, you'll find the report in the "/coverage" directory (index.html file).

[sparrowscout]

Thank you for kind reply!!

[BusyCranis]

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