setup-buildx-action/__tests__/git.test.ts

import * as git from '../src/git';

describe('git', () => {
  it('returns git remote ref', async () => {
    const ref: string = await git.getRemoteSha('https://github.com/docker/buildx.git', 'refs/pull/648/head');
    console.log(`ref: ${ref}`);
    expect(ref).toEqual('f11797113e5a9b86bd976329c5dbb8a8bfdfadfa');
  });
});