depot_tools/recipe_modules/bot_update/test_api.py

# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import hashlib
import os
import struct
import sys
from recipe_engine import recipe_test_api

# TODO(phajdan.jr): Clean up this somewhat ugly import.
sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'resources'))
import bot_update


class BotUpdateTestApi(recipe_test_api.RecipeTestApi):
  def output_json(self, root, first_sln, revision_mapping, fail_patch=False,
                  output_manifest=False, fixed_revisions=None):
    """Deterministically synthesize json.output test data for gclient's
    --output-json option.
    """

    output = {
        'did_run': True,
        'patch_failure': False
    }

    properties = {
        property_name: self.gen_revision(project_name, True)
        for project_name, property_name in revision_mapping.iteritems()
    }
    properties.update({
        '%s_cp' % property_name: ('refs/heads/master@{#%s}' %
                                  self.gen_revision(project_name, False))
        for project_name, property_name in revision_mapping.iteritems()
    })

    output.update({
        'patch_root': root or first_sln,
        'root': first_sln,
        'properties': properties,
        'step_text': 'Some step text'
    })

    if output_manifest:
      output.update({
        'manifest': {
          project_name: {
            'repository': 'https://fake.org/%s.git' % project_name,
            'revision': self.gen_revision(project_name, True),
          }
          for project_name in revision_mapping
        }
      })

    if fixed_revisions:
      output['fixed_revisions'] = fixed_revisions

    if fail_patch:
      output['log_lines'] = [('patch error', 'Patch failed to apply'),]
      output['patch_failure'] = True
      output['patch_apply_return_code'] = 1
      if fail_patch == 'download':
        output['patch_apply_return_code'] = 3
    return self.m.json.output(output)

  @staticmethod
  def gen_revision(project, git_mode):
    """Hash project to bogus deterministic revision values."""
    h = hashlib.sha1(project)
    if git_mode:
      return h.hexdigest()
    else:
      return struct.unpack('!I', h.digest()[:4])[0] % 300000