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# Lint as: python3
# Copyright 2020 The Bazel Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Tests for bazel_api.py."""
import os
import unittest
from src.test.py.bazel import test_base
from tools.ctexplain.bazel_api import BazelApi
from tools.ctexplain.types import HostConfiguration
from tools.ctexplain.types import NullConfiguration
class BazelApiTest(test_base.TestBase):
_bazel_api: BazelApi = None
def setUp(self):
test_base.TestBase.setUp(self)
self._bazel_api = BazelApi(self.RunBazel)
self.ScratchFile('WORKSPACE')
self.CreateWorkspaceWithDefaultRepos('repo/WORKSPACE')
def tearDown(self):
test_base.TestBase.tearDown(self)
def testBasicCquery(self):
self.ScratchFile('testapp/BUILD', [
'filegroup(name = "fg", srcs = ["a.file"])',
])
res = self._bazel_api.cquery(['//testapp:all'])
success = res[0]
cts = res[2]
self.assertTrue(success)
self.assertEqual(len(cts), 1)
self.assertEqual(cts[0].label, '//testapp:fg')
self.assertIsNone(cts[0].config)
self.assertGreater(len(cts[0].config_hash), 10)
self.assertIn('PlatformConfiguration', cts[0].transitive_fragments)
def testFailedCquery(self):
self.ScratchFile('testapp/BUILD', [
'filegroup(name = "fg", srcs = ["a.file"])',
])
(success, stderr, cts) = self._bazel_api.cquery(['//testapp:typo'])
self.assertFalse(success)
self.assertEqual(len(cts), 0)
self.assertIn("target 'typo' not declared in package 'testapp'",
os.linesep.join(stderr))
def testTransitiveFragmentsAccuracy(self):
self.ScratchFile('testapp/BUILD', [
'filegroup(name = "fg", srcs = ["a.file"])',
'filegroup(name = "ccfg", srcs = [":ccbin"])',
'cc_binary(name = "ccbin", srcs = ["ccbin.cc"])'
])
cts1 = self._bazel_api.cquery(['//testapp:fg'])[2]
self.assertNotIn('CppConfiguration', cts1[0].transitive_fragments)
cts2 = self._bazel_api.cquery(['//testapp:ccfg'])[2]
self.assertIn('CppConfiguration', cts2[0].transitive_fragments)
def testGetTargetConfig(self):
self.ScratchFile('testapp/BUILD', [
'filegroup(name = "fg", srcs = ["a.file"])',
])
cts = self._bazel_api.cquery(['//testapp:fg'])[2]
config = self._bazel_api.get_config(cts[0].config_hash)
expected_fragments = ['PlatformConfiguration', 'JavaConfiguration']
for exp in expected_fragments:
self.assertIn(exp, config.fragments)
core_options = config.options['CoreOptions']
self.assertIsNotNone(core_options)
self.assertIn(('stamp', 'false'), core_options.items())
def testGetHostConfig(self):
self.ScratchFile('testapp/BUILD', [
'genrule(',
' name = "g",',
' srcs = [],',
' cmd = "",',
' outs = ["g.out"],',
' tools = [":fg"])',
'filegroup(name = "fg", srcs = ["a.file"])',
])
query = ['//testapp:fg', '--universe_scope=//testapp:g']
cts = self._bazel_api.cquery(query)[2]
config = self._bazel_api.get_config(cts[0].config_hash)
self.assertIsInstance(config, HostConfiguration)
# We don't currently populate or read a host configuration's details.
self.assertEqual(len(config.fragments), 0)
self.assertEqual(len(config.options), 0)
def testGetNullConfig(self):
self.ScratchFile('testapp/BUILD', [
'filegroup(name = "fg", srcs = ["a.file"])',
])
cts = self._bazel_api.cquery(['//testapp:a.file'])[2]
config = self._bazel_api.get_config(cts[0].config_hash)
self.assertIsInstance(config, NullConfiguration)
# Null configurations have no information by definition.
self.assertEqual(len(config.fragments), 0)
self.assertEqual(len(config.options), 0)
def testConfigWithDefines(self):
self.ScratchFile('testapp/BUILD', [
'filegroup(name = "fg", srcs = ["a.file"])',
])
cquery_args = ['//testapp:fg', '--define', 'a=b']
cts = self._bazel_api.cquery(cquery_args)[2]
config = self._bazel_api.get_config(cts[0].config_hash)
user_defined_options = config.options['user-defined']
self.assertIsNotNone(user_defined_options)
self.assertDictEqual(user_defined_options._dict, {'--define:a': 'b'})
def testConfigWithStarlarkFlags(self):
self.ScratchFile('testapp/defs.bzl', [
'def _flag_impl(settings, attr):', ' pass', 'string_flag = rule(',
' implementation = _flag_impl,',
' build_setting = config.string(flag = True)'
')'
])
self.ScratchFile('testapp/BUILD', [
'load(":defs.bzl", "string_flag")',
'string_flag(name = "my_flag", build_setting_default = "nada")',
'filegroup(name = "fg", srcs = ["a.file"])',
])
cquery_args = ['//testapp:fg', '--//testapp:my_flag', 'algo']
cts = self._bazel_api.cquery(cquery_args)[2]
config = self._bazel_api.get_config(cts[0].config_hash)
user_defined_options = config.options['user-defined']
self.assertIsNotNone(user_defined_options)
self.assertDictEqual(user_defined_options._dict,
{'//testapp:my_flag': 'algo'})
if __name__ == '__main__':
unittest.main()
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