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#!/usr/bin/python2
#
# Copyright 2019 The Chromium OS 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 json
import os
import tempfile
import unittest
import common
from autotest_lib.client.common_lib import error
from autotest_lib.server.cros.faft.utils import config
class CanLoadDefaultTestCase(unittest.TestCase):
"""Ensure that configs can load the default JSON"""
def runTest(self):
"""Main test logic"""
platform = "foo"
cfg = config.Config(platform)
self.assertIsInstance(cfg.has_keyboard, bool)
class _MockConfigTestCaseBaseClass(unittest.TestCase):
"""
Base class which handles the setup/teardown of mock config files.
Sub-classes should declare a class attribute, mock_configs,
as a dict representing all platforms to be written as JSON files.
This class writes those JSON files during setUp() and deletes them
during tearDown().
During runTest(), sub-classes can create config.Config instances by name
and run assertions as normal.
"""
mock_configs = None
def setUp(self):
"""Set up a tempfile containing the test data"""
if self.mock_configs is None:
return
# Setup mock config._CONFIG_DIR, but remember the original.
self.mock_config_dir = tempfile.mkdtemp()
self.original_config_dir = config._CONFIG_DIR
config._CONFIG_DIR = self.mock_config_dir
# Write mock config file.
with open(config._consolidated_json_fp(), 'w') as f:
json.dump(self.mock_configs, f)
def tearDown(self):
"""After tests are complete, delete the tempfile"""
if self.mock_configs is None:
return
os.remove(config._consolidated_json_fp())
os.rmdir(self.mock_config_dir)
config._CONFIG_DIR = self.original_config_dir
class InheritanceTestCase(_MockConfigTestCaseBaseClass):
"""Ensure that platforms inherit attributes correctly"""
mock_configs = {
'DEFAULTS': {
'no_override': 'default',
'parent_override': 'default',
'child_override': 'default',
'both_override': 'default',
'parent': None
},
'childboard': {
'child_override': 'child',
'both_override': 'child',
'parent': 'parentboard'
},
'parentboard': {
'parent_override': 'parent',
'both_override': 'parent'
}
}
def runTest(self):
"""
Verify that the following situations resolve correctly:
A platform that inherit some overridess from another platform
A platform that does not inherit from another platform
A platform not found in the config file
"""
child_config = config.Config('childboard')
#print(child_config)
self.assertEqual(child_config.no_override, 'default')
self.assertEqual(child_config.parent_override, 'parent')
self.assertEqual(child_config.child_override, 'child')
self.assertEqual(child_config.both_override, 'child')
with self.assertRaises(AttributeError):
child_config.foo # pylint: disable=pointless-statement
parent_config = config.Config('parentboard')
self.assertEqual(parent_config.no_override, 'default')
self.assertEqual(parent_config.parent_override, 'parent')
self.assertEqual(parent_config.child_override, 'default')
self.assertEqual(parent_config.both_override, 'parent')
foo_config = config.Config('foo')
self.assertEqual(foo_config.no_override, 'default')
self.assertEqual(foo_config.parent_override, 'default')
self.assertEqual(foo_config.child_override, 'default')
self.assertEqual(foo_config.both_override, 'default')
# While we're here, verify that str(config) doesn't break
str(child_config) # pylint: disable=pointless-statement
class ModelOverrideTestCase(_MockConfigTestCaseBaseClass):
"""Verify that models of boards inherit overrides with proper precedence"""
mock_configs = {
'parentboard': {
'attr1': 'parent_attr1',
'attr2': 'parent_attr2',
'models': {
'modelA': {
'attr1': 'parent_modelA_attr1'
}
}
},
'childboard': {
'parent': 'parentboard',
'attr1': 'child_attr1',
'models': {
'modelA': {
'attr1': 'child_modelA_attr1'
}
}
},
'DEFAULTS': {
'models': None,
'attr1': 'default',
'attr2': 'default'
}
}
def runTest(self):
"""Run assertions on test data"""
child_config = config.Config('childboard')
child_modelA_config = config.Config('childboard', 'modelA')
child_modelB_config = config.Config('childboard', 'modelB')
parent_config = config.Config('parentboard')
parent_modelA_config = config.Config('parentboard', 'modelA')
parent_modelB_config = config.Config('parentboard', 'modelB')
self.assertEqual(child_config.attr1, 'child_attr1')
self.assertEqual(child_config.attr2, 'parent_attr2')
self.assertEqual(child_modelA_config.attr1, 'child_modelA_attr1')
self.assertEqual(child_modelA_config.attr2, 'parent_attr2')
self.assertEqual(child_modelB_config.attr1, 'child_attr1')
self.assertEqual(child_modelB_config.attr2, 'parent_attr2')
self.assertEqual(parent_config.attr1, 'parent_attr1')
self.assertEqual(parent_config.attr2, 'parent_attr2')
self.assertEqual(parent_modelA_config.attr1, 'parent_modelA_attr1')
self.assertEqual(parent_modelA_config.attr2, 'parent_attr2')
self.assertEqual(parent_modelB_config.attr1, 'parent_attr1')
self.assertEqual(parent_modelB_config.attr2, 'parent_attr2')
class DirectSelfInheritanceTestCase(_MockConfigTestCaseBaseClass):
"""Ensure that a config which inherits from itself raises an error."""
mock_configs = {
'selfloop': {
'parent': 'selfloop',
},
}
def runTest(self):
"""Run assertions on test data."""
with self.assertRaises(error.TestError):
config.Config('selfloop')
class IndirectSelfInheritanceTestCase(_MockConfigTestCaseBaseClass):
"""Ensure that configs which inherit from each other raise an error."""
mock_configs = {
'indirectloop1': {
'parent': 'indirectloop2',
},
'indirectloop2': {
'parent': 'indirectloop1',
},
'indirectloop3': {
'parent': 'indirectloop1',
},
}
def runTest(self):
"""Run assertions on test data."""
with self.assertRaises(error.TestError):
config.Config('indirectloop1')
with self.assertRaises(error.TestError):
config.Config('indirectloop3')
class FindMostSpecificConfigTestCase(_MockConfigTestCaseBaseClass):
"""Ensure that configs named like $BOARD-kernelnext load $BOARD.json."""
mock_configs = {
'DEFAULTS': {},
'samus': {},
'veyron': {},
'minnie': {'parent': 'veyron'},
}
def runTest(self):
cfg = config.Config('samus-kernelnext')
self.assertEqual(config.Config('samus-kernelnext').platform, 'samus')
self.assertEqual(config.Config('samus-arc-r').platform, 'samus')
self.assertEqual(config.Config('veyron_minnie').platform, 'minnie')
self.assertEqual(config.Config('veyron_monroe').platform, 'veyron')
self.assertEqual(config.Config('veyron_minnie-arc-r').platform, 'minnie')
self.assertEqual(config.Config('veyron_monroe-arc-r').platform, 'veyron')
if __name__ == '__main__':
unittest.main()