import { describe, expect, it } from 'vitest'
import { isNoUpstreamError } from './git-remote-error'

describe('isNoUpstreamError', () => {
  it('treats a missing HEAD@{u} tracking ref as no upstream', () => {
    const error = new Error(
      "fatal: ambiguous argument 'HEAD@{u}': unknown revision or path not in the working tree.\n" +
        "Use '--' to separate paths from revisions, like this:\n" +
        "'git <command> [<revision>...] -- [<file>...]'"
    )

    expect(isNoUpstreamError(error)).toBe(true)
  })

  it('does not treat unrelated ambiguous refs as no upstream', () => {
    const error = new Error(
      "fatal: ambiguous argument 'feature': unknown revision or path not in the working tree."
    )

    expect(isNoUpstreamError(error)).toBe(false)
  })
})