test(ext/node): add fs open unit test from std

[ktfth]

added _fs_open_test.ts from deno_std repo
added import paths
added import modules

#17840

[kt3k]

@ktfth Can you also add the line _fs_open_test = _fs / _fs_open_test, in cli/tests/integration/node_unit_tests.rs? (like this line https://github.com/denoland/deno/pull/19461/files#diff-f2b43150de49baab72b5591bd99fb549670093e60fe0eafc663594cda5760e9aR22) That is necessary to run this test file in CI. You can validate it by running the command cargo test _fs_open_test which should trigger this test file from cargo command (it might take a long time if you haven't built deno locally)

[kt3k]

Also check the command cargo test integration::node_unit_tests::check_test_glob which validates the settings of cli/tests/integration/node_unit_tests.rs, which is currently failing in CI

[ktfth]

@kt3k I can do that, and I have the tool locally installed. Bring some updates soon.

[ktfth]

@kt3k How to call this kind of files? Example:

ext:deno_node/_fs/_fs_constants.ts

[ktfth]

@kt3k all done, thank you for the dev experience! The team is awesome.

[ktfth]

@kt3k If have something who can I help, let me know

[kt3k]

LGTM. Thanks!