code: def test_init_options(
      inject_failure_rate, s3root, pathspecs, expected
  ):
      [pathspec] = pathspecs
      flow_name, run_id = pathspec.split("/")
      plen = len(s3root)
  
      # option 1) s3root as prefix
      with S3(s3root=s3root) as s3:
          for url, exp in expected.items():
              # s3root should work as a prefix
              s3obj = s3.get(url[plen:])
              assert s3obj.key == url[plen:]
              assert_results([s3obj], {url: exp})
          with pytest.raises(MetaflowS3URLException):
              s3.get("s3://some/fake/address")
  
      # option 2) full url as s3root
      for url, exp in expected.items():
          with S3(s3root=url) as s3:
              s3obj = s3.get()
              assert_results([s3obj], {url: exp})
  
      # option 3) full urls
      with S3(inject_failure_rate=inject_failure_rate) as s3:
          for url, exp in expected.items():
              # s3root should work as a prefix
              s3obj = s3.get(url)
              assert s3obj.key == url
              assert_results([s3obj], {url: exp})
          with pytest.raises(MetaflowS3URLException):
              s3.get("suffix")
          with pytest.raises(MetaflowS3URLException):
              s3.get("s3://nopath")
          with pytest.raises(MetaflowS3URLException):
              s3.get_many(["suffixes"])
          with pytest.raises(MetaflowS3URLException):
              s3.get_recursive(["suffixes"])
          with pytest.raises(MetaflowS3URLException):
              s3.get_all()
  
      # option 4) 'current' environment (fake a running flow)
      flow = FakeFlow(use_cli=False)
      parsed = urlparse(s3root)
  
      # Once current is set, we can't test again. It doesn't inject failures anyways so OK
      if inject_failure_rate == 0:
          with pytest.raises(MetaflowS3URLException):
              # current not set yet, so this should fail
              with S3(run=flow):
                  pass
  
      current._set_env(
          FakeFlow(name=flow_name),
          run_id,
          "no_step",
          "no_task",
          "no_origin_run_id",
          "no_ns",
          "no_user",
      )
  
      with S3(
          bucket=parsed.netloc,
          prefix=parsed.path,
          run=flow,
          inject_failure_rate=inject_failure_rate,
      ) as s3:
          for url, exp in expected.items():
              name = url.split("/")[-1]
              s3obj = s3.get(name)
              assert s3obj.key == name
              assert_results([s3obj], {url: exp})
          names = [url.split("/")[-1] for url in expected]
          s3objs = s3.get_many(names)
          assert {e.key for e in s3objs} == set(names)
          assert_results(s3objs, expected)
          assert_results(
              s3.get_all(), expected, info_should_be_empty=True
          )
  
      # option 5) run object
      if DO_TEST_RUN:
          # Only works if a metadata service exists with the run in question.
          namespace(None)
          with S3(
              bucket=parsed.netloc,
              prefix=parsed.path,
              run=Run(pathspec),
              inject_failure_rate=inject_failure_rate,
          ) as s3:
              names = [url.split("/")[-1] for url in expected]
              assert_results(s3.get_many(names), expected)
  
imports: import os
  from re import I
  import shutil
  from hashlib import sha1
  from tempfile import mkdtemp
  from itertools import groupby, starmap
  import random
  from uuid import uuid4
  from metaflow.plugins.datatools import s3
  import pytest
  from metaflow import current, namespace, Run
  from metaflow.plugins.datatools.s3 import S3, MetaflowS3AccessDenied, MetaflowS3NotFound, MetaflowS3URLException, MetaflowS3InvalidObject, S3PutObject, S3GetObject
  from metaflow.util import to_bytes, unicode_type
  from .None import s3_data
  from ..None import FakeFlow, DO_TEST_RUN
label_desc: Use image node_id 12 for calling a global function with example usage: test_init_options(inject_failure_rate, s3root, pathspecs, expected) without return types