refactor crypto_test.go againts web platform tests

[aniqaqill]

What?

This PR adds Web Platform Tests (WPT) for the Crypto interface in the k6 WebCrypto API implementation.

The tests are integrated into the existing WPT framework, and any necessary patches are applied to ensure compatibility with the k6 runtime.

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Why?

These changes ensure that the k6 implementation of the WebCrypto API is compliant with the WebCrypto specification. By running the WPT suite, we can:

1. Improve Maintainability:

   • Use the WPT suite to catch regressions and ensure consistency with the specification.

2. Increase Transparency:

   • Make it easier for contributors and users to understand how the k6 implementation aligns with the WebCrypto API.

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Checklist

• I have performed a self-review of my code.
• I have added tests for my changes.
• I have run linter locally (make lint) and all checks pass.
• I have run tests locally (make tests) and all tests pass.
• I have commented on my code, particularly in hard-to-understand areas.

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Related PR(s)/Issue(s)

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Changes Made

1. Updated crypto_test.go:

   • Integrated the WPT test files into the test suite.

2. Applied Patches:

   • Generated and applied patches to ensure the WPT tests are compatible with the k6 runtime.

3. Verified Tests:

   • Ran the tests locally to ensure they pass and cover the implemented functionality.

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Thanks for your contribution! 🙏🏼

[CLAassistant]

All committers have signed the CLA.

[olegbespalov]

Hi @aniqaqill !

Thanks for the opening the pull-request, however I'm not sure if it addresses the need of #4268.

So the predominant point of the #4268 is to migrate from the hardcoded tests (JavaScript code) to running the tests that are part of the web platform test suite.

For instance, TestGetRandomValuesSupportedTypedArrays has a comment that it was based on the https://github.com/web-platform-tests/wpt/blob/75db68b05454e7f3a81e063373defd094c176a16/WebCryptoAPI/getRandomValues.any.js (not I've replaced the master reference to a precise commit that we use for checking out the test).

So the desired state is that instead of current hardcoded logic:

...
_, gotErr := ts.RunOnEventLoop(fmt.Sprintf(`
				var buf = new %s(10);
				crypto.getRandomValues(buf);
				if (buf.length != 10) {
					throw new Error("buf.length != 10");
				}
			`, tc.typedArray))
...

We run the test against the files of web platform tests.

Furthermore, it seems like crypto_test.go just duplicates what is presented in the subtle_crypto_test.go.

Please let me know if you have more questions.