Function simulateGitFetch

testing/test-utils/src/lib/utils/git.ts:95–118

(git: SimpleGit)

}

export async function simulateGitFetch(git: SimpleGit) {
  let fetchHead: string = await git.branchLocal().then(resp => resp.current);

  vi.spyOn(git, 'fetch').mockImplementation((...args) => {
    fetchHead = (args as unknown as [string, string, string[]])[1];
    return Promise.resolve({}) as Response<FetchResult>;
  });

  const originalDiffSummary = git.diffSummary.bind(git);
  const originalDiff = git.diff.bind(git);

  vi.spyOn(git, 'diffSummary').mockImplementation(args =>
    originalDiffSummary(
      (args as unknown as string[]).map(arg =>
        arg === 'FETCH_HEAD' ? fetchHead : arg,
      ),
    ),
  );
  vi.spyOn(git, 'diff').mockImplementation(args =>
    originalDiff(
      (args as string[]).map(arg => (arg === 'FETCH_HEAD' ? fetchHead : arg)),
    ),
  );
}