recipes/recipes/luci-test.py

PYTHON_VERSION_COMPATIBILITY = "PY3"

# Reference: https://chromium.googlesource.com/infra/luci/recipes-py/+/HEAD/doc/

# All the deps get combined into an `api` variable passed in to RunSteps and
# GenTests. Versions and urls are specified in `recipes.cfg`.
DEPS = [
  'depot_tools/bot_update',
  'depot_tools/gclient',
  'recipe_engine/buildbucket',
  'recipe_engine/context',
  'recipe_engine/path',
  'recipe_engine/step',
  'recipe_engine/nodejs',
]

# Check out the change and run the tests to verify the change as part of Change
# Verification (ie. CQ label).
def RunSteps(api):
  cl = api.buildbucket.build.input.gerrit_changes[0]

  # Remove "-review" part of host URL
  host = cl.host
  gs_suffix = '-review.googlesource.com'
  if host.endswith(gs_suffix):
    host = '%s.googlesource.com' % host[:-len(gs_suffix)]

  gclient_config = api.gclient.make_config()
  s = gclient_config.solutions.add()
  s.url = 'https://%s/%s' % (host, cl.project)
  # This is the name of the subfolder under api.path['cache'].join('builder')
  # where the repo will be checked out at.
  s.name = 'src'
  gclient_config.got_revision_mapping[s.name] = 'got_revision'

  # Check out the code for the change, this is by default cached between builds
  # for the same builder.
  with api.context(cwd=api.path['cache'].join('builder')):
    update_result = api.bot_update.ensure_checkout(
        gclient_config=gclient_config)
    api.step.raise_on_failure(update_result)

  # Now in the checked out code directory run our verification.
  with api.context(cwd=api.path['cache'].join('builder').join(s.name)):
    # Current LTS for Node.js
    with api.nodejs(version='18.11.0'):
      # Named steps to test the change
      api.step('install deps', ['npm', 'install'])
      api.step('run tests', ['npm', 'run', 'test'])


# Test the recipe and generate the expect json file.
def GenTests(api):
  yield api.test(
    'basic',
    # Execute RunSteps with test data
    api.buildbucket.try_build(
      project="gerrit",
      git_repo="https://gerrit.googlesource.com/luci-test",
    ),
  )