General naming convention(s) for differentiating unit test files from integration test files

I’ve seen a few files called *.test.js, *-test.js, *.spec.js, etc.

e2e clearly means end to end, which is different than unit and integration

Is there a general convention how to differentiate JavaScript (or TypeScript) unit and integration test files?

I know in frameworks like Jest I can use regex and jest projects to identify which files are unit vs integration, but curious if there is general naming convention / what are industry standards on test file names

I started naming my unit test files file.test.js and my integration tests file.int.test.js, but I’m not sure I’ve seen that anywhere else

Inspired by this question on unit test conventions