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# Copyright 2015 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.
"""Tests for the brick library."""
from __future__ import print_function
import os
from chromite.cbuildbot import constants
from chromite.lib import brick_lib
from chromite.lib import cros_test_lib
from chromite.lib import osutils
from chromite.lib import workspace_lib
class BrickLibTest(cros_test_lib.WorkspaceTestCase):
"""Unittest for brick.py"""
# pylint: disable=protected-access
def setUp(self):
self.CreateWorkspace()
def SetupLegacyBrick(self, brick_dir=None, brick_name='foo'):
"""Sets up a legacy brick layout."""
if brick_dir is None:
brick_dir = self.workspace_path
layout_conf = 'repo-name = %s\n' % brick_name
osutils.WriteFile(os.path.join(brick_dir, 'metadata', 'layout.conf'),
layout_conf, makedirs=True)
def testLayoutFormat(self):
"""Test that layout.conf is correctly formatted."""
brick = self.CreateBrick()
content = {'repo-name': 'hello',
'bar': 'foo'}
brick._WriteLayoutConf(content)
path = os.path.join(brick.OverlayDir(), 'metadata', 'layout.conf')
layout_conf = osutils.ReadFile(path).split('\n')
expected_lines = ['repo-name = hello',
'bar = foo',
'profile-formats = portage-2 profile-default-eapi']
for line in expected_lines:
self.assertTrue(line in layout_conf)
def testConfigurationGenerated(self):
"""Test that portage's files are generated when the config file changes."""
brick = self.CreateBrick()
sample_config = {'name': 'hello',
'dependencies': []}
brick.UpdateConfig(sample_config)
self.assertExists(brick._LayoutConfPath())
def testFindBrickInPath(self):
"""Test that we can infer the current brick from the current directory."""
brick = self.CreateBrick()
os.remove(os.path.join(brick.brick_dir, brick_lib._CONFIG_FILE))
brick_dir = os.path.join(self.workspace_path, 'foo', 'bar', 'project')
expected_name = 'hello'
brick_lib.Brick(brick_dir, initial_config={'name': 'hello'})
with osutils.ChdirContext(self.workspace_path):
self.assertEqual(None, brick_lib.FindBrickInPath())
with osutils.ChdirContext(brick_dir):
self.assertEqual(expected_name,
brick_lib.FindBrickInPath().config['name'])
subdir = os.path.join(brick_dir, 'sub', 'directory')
osutils.SafeMakedirs(subdir)
with osutils.ChdirContext(subdir):
self.assertEqual(expected_name,
brick_lib.FindBrickInPath().config['name'])
def testBrickCreation(self):
"""Test that brick initialization throws the right errors."""
brick = self.CreateBrick()
with self.assertRaises(brick_lib.BrickCreationFailed):
brick_lib.Brick(brick.brick_dir, initial_config={})
nonexistingbrick = os.path.join(self.workspace_path, 'foo')
with self.assertRaises(brick_lib.BrickNotFound):
brick_lib.Brick(nonexistingbrick)
def testLoadNonExistingBrickFails(self):
"""Tests that trying to load a non-existing brick fails."""
self.assertRaises(brick_lib.BrickNotFound, brick_lib.Brick,
self.workspace_path)
def testLoadExistingNormalBrickSucceeds(self):
"""Tests that loading an existing brick works."""
brick = self.CreateBrick(name='my_brick')
brick = brick_lib.Brick(brick.brick_dir, allow_legacy=False)
self.assertEquals('my_brick', brick.config.get('name'))
def testLoadExistingLegacyBrickFailsIfNotAllowed(self):
"""Tests that loading a legacy brick fails when not allowed."""
self.SetupLegacyBrick()
with self.assertRaises(brick_lib.BrickNotFound):
brick_lib.Brick(self.workspace_path, allow_legacy=False)
def testLoadExistingLegacyBrickSucceeds(self):
"""Tests that loading a legacy brick fails when not allowed."""
self.SetupLegacyBrick()
brick = brick_lib.Brick(self.workspace_path)
self.assertEquals('foo', brick.config.get('name'))
def testLegacyBrickUpdateConfigFails(self):
"""Tests that a legacy brick config cannot be updated."""
self.SetupLegacyBrick()
brick = brick_lib.Brick(self.workspace_path)
with self.assertRaises(brick_lib.BrickFeatureNotSupported):
brick.UpdateConfig({'name': 'bar'})
def testInherits(self):
"""Tests the containment checking works as intended."""
saved_root = constants.SOURCE_ROOT
try:
# Mock the source root so that we can create fake legacy overlay.
constants.SOURCE_ROOT = self.workspace_path
legacy = os.path.join(self.workspace_path, 'src', 'overlays',
'overlay-foobar')
self.SetupLegacyBrick(brick_dir=legacy, brick_name='foobar')
bar_brick = brick_lib.Brick('//bar', initial_config={'name': 'bar'})
foo_brick = brick_lib.Brick(
'//foo', initial_config={'name': 'foo',
'dependencies': ['//bar', 'board:foobar']})
self.assertTrue(bar_brick.Inherits('bar'))
self.assertTrue(foo_brick.Inherits('bar'))
self.assertFalse(bar_brick.Inherits('foo'))
self.assertTrue(foo_brick.Inherits('foobar'))
self.assertFalse(foo_brick.Inherits('dontexist'))
finally:
constants.SOURCE_ROOT = saved_root
def testOverlayDir(self):
"""Tests that overlay directory is returned correctly."""
self.assertExists(self.CreateBrick().OverlayDir())
def testOpenUsingLocator(self):
"""Tests that we can open a brick given a locator."""
brick_lib.Brick(os.path.join(self.workspace_path, 'foo'),
initial_config={'name': 'foo'})
brick_lib.Brick('//foo')
with self.assertRaises(brick_lib.BrickNotFound):
brick_lib.Brick('//doesnotexist')
def testCreateUsingLocator(self):
"""Tests that we can create a brick using a locator."""
brick_lib.Brick('//foobar', initial_config={'name': 'foobar'})
brick_lib.Brick('//bricks/some/path', initial_config={'name': 'path'})
brick_lib.Brick('//foobar')
brick_lib.Brick('//bricks/some/path')
brick_lib.Brick(os.path.join(self.workspace_path, 'foobar'))
brick_lib.Brick(os.path.join(self.workspace_path, 'bricks', 'some', 'path'))
def testFriendlyName(self):
"""Tests that the friendly name generation works."""
first = brick_lib.Brick('//foo/bar/test', initial_config={'name': 'test'})
self.assertEqual('foo.bar.test', first.FriendlyName())
second = brick_lib.Brick(os.path.join(self.workspace_path, 'test', 'foo'),
initial_config={'name': 'foo'})
self.assertEqual('test.foo', second.FriendlyName())
def testMissingDependency(self):
"""Tests that the brick creation fails when a dependency is missing."""
with self.assertRaises(brick_lib.BrickCreationFailed):
brick_lib.Brick('//bar',
initial_config={'name':'bar',
'dependencies':['//dont/exist']})
# If the creation failed, the directory is removed cleanly.
self.assertFalse(os.path.exists(workspace_lib.LocatorToPath('//bar')))
def testNormalizedDependencies(self):
"""Tests that dependencies are normalized during brick creation."""
brick_lib.Brick('//foo/bar', initial_config={'name': 'bar'})
with osutils.ChdirContext(os.path.join(self.workspace_path, 'foo')):
brick_lib.Brick('//baz', initial_config={'name': 'baz',
'dependencies': ['bar']})
deps = brick_lib.Brick('//baz').config['dependencies']
self.assertEqual(1, len(deps))
self.assertEqual('//foo/bar', deps[0])
def testBrickStack(self):
"""Tests that the brick stacking is correct."""
def brick_dep(name, deps):
config = {'name': os.path.basename(name),
'dependencies': deps}
return brick_lib.Brick(name, initial_config=config)
brick_dep('//first', [])
brick_dep('//second', ['//first'])
third = brick_dep('//third', ['//first', '//second'])
fourth = brick_dep('//fourth', ['//second', '//first'])
self.assertEqual(['//first', '//second', '//third'],
[b.brick_locator for b in third.BrickStack()])
self.assertEqual(['//first', '//second', '//fourth'],
[b.brick_locator for b in fourth.BrickStack()])
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