# SPDX-License-Identifier: Apache-2.0 # Copyright 2016-2021 The Meson development team from pathlib import PurePath from unittest import mock, TestCase, SkipTest import json import io import os import re import subprocess import sys import tempfile import typing as T import mesonbuild.mlog import mesonbuild.depfile import mesonbuild.dependencies.base import mesonbuild.dependencies.factory import mesonbuild.compilers import mesonbuild.envconfig import mesonbuild.environment import mesonbuild.coredata import mesonbuild.modules.gnome from mesonbuild.mesonlib import ( is_cygwin, join_args, split_args, windows_proof_rmtree, python_command ) import mesonbuild.modules.pkgconfig from run_tests import ( Backend, ensure_backend_detects_changes, get_backend_commands, get_builddir_target_args, get_meson_script, run_configure_inprocess, run_mtest_inprocess, handle_meson_skip_test, ) # magic attribute used by unittest.result.TestResult._is_relevant_tb_level # This causes tracebacks to hide these internal implementation details, # e.g. for assertXXX helpers. __unittest = True class BasePlatformTests(TestCase): prefix = '/usr' libdir = 'lib' def setUp(self): super().setUp() self.maxDiff = None src_root = str(PurePath(__file__).parents[1]) self.src_root = src_root # Get the backend self.backend_name = os.environ['MESON_UNIT_TEST_BACKEND'] backend_type = 'vs' if self.backend_name.startswith('vs') else self.backend_name self.backend = getattr(Backend, backend_type) self.meson_args = ['--backend=' + self.backend_name] self.meson_native_files = [] self.meson_cross_files = [] self.meson_command = python_command + [get_meson_script()] self.setup_command = self.meson_command + ['setup'] + self.meson_args self.mconf_command = self.meson_command + ['configure'] self.mintro_command = self.meson_command + ['introspect'] self.wrap_command = self.meson_command + ['wrap'] self.rewrite_command = self.meson_command + ['rewrite'] # Backend-specific build commands self.build_command, self.clean_command, self.test_command, self.install_command, \ self.uninstall_command = get_backend_commands(self.backend) # Test directories self.common_test_dir = os.path.join(src_root, 'test cases/common') self.python_test_dir = os.path.join(src_root, 'test cases/python') self.rust_test_dir = os.path.join(src_root, 'test cases/rust') self.vala_test_dir = os.path.join(src_root, 'test cases/vala') self.framework_test_dir = os.path.join(src_root, 'test cases/frameworks') self.unit_test_dir = os.path.join(src_root, 'test cases/unit') self.rewrite_test_dir = os.path.join(src_root, 'test cases/rewrite') self.linuxlike_test_dir = os.path.join(src_root, 'test cases/linuxlike') self.objc_test_dir = os.path.join(src_root, 'test cases/objc') self.objcpp_test_dir = os.path.join(src_root, 'test cases/objcpp') # Misc stuff self.orig_env = os.environ.copy() if self.backend is Backend.ninja: self.no_rebuild_stdout = ['ninja: no work to do.', 'samu: nothing to do'] else: # VS doesn't have a stable output when no changes are done # XCode backend is untested with unit tests, help welcome! self.no_rebuild_stdout = [f'UNKNOWN BACKEND {self.backend.name!r}'] os.environ['COLUMNS'] = '80' self.builddirs = [] self.new_builddir() def change_builddir(self, newdir): self.builddir = newdir self.privatedir = os.path.join(self.builddir, 'meson-private') self.logdir = os.path.join(self.builddir, 'meson-logs') self.installdir = os.path.join(self.builddir, 'install') self.distdir = os.path.join(self.builddir, 'meson-dist') self.mtest_command = self.meson_command + ['test', '-C', self.builddir] self.builddirs.append(self.builddir) def new_builddir(self): # Keep builddirs inside the source tree so that virus scanners # don't complain newdir = tempfile.mkdtemp(dir=os.getcwd()) # In case the directory is inside a symlinked directory, find the real # path otherwise we might not find the srcdir from inside the builddir. newdir = os.path.realpath(newdir) self.change_builddir(newdir) def new_builddir_in_tempdir(self): # Can't keep the builddir inside the source tree for the umask tests: # https://github.com/mesonbuild/meson/pull/5546#issuecomment-509666523 # And we can't do this for all tests because it causes the path to be # a short-path which breaks other tests: # https://github.com/mesonbuild/meson/pull/9497 newdir = tempfile.mkdtemp() # In case the directory is inside a symlinked directory, find the real # path otherwise we might not find the srcdir from inside the builddir. newdir = os.path.realpath(newdir) self.change_builddir(newdir) def _open_meson_log(self) -> io.TextIOWrapper: log = os.path.join(self.logdir, 'meson-log.txt') return open(log, encoding='utf-8') def _get_meson_log(self) -> T.Optional[str]: try: with self._open_meson_log() as f: return f.read() except FileNotFoundError as e: print(f"{e.filename!r} doesn't exist", file=sys.stderr) return None def _print_meson_log(self) -> None: log = self._get_meson_log() if log: print(log) def tearDown(self): for path in self.builddirs: try: windows_proof_rmtree(path) except FileNotFoundError: pass os.environ.clear() os.environ.update(self.orig_env) super().tearDown() def _run(self, command, *, workdir=None, override_envvars: T.Optional[T.Mapping[str, str]] = None, stderr=True): ''' Run a command while printing the stdout and stderr to stdout, and also return a copy of it ''' # If this call hangs CI will just abort. It is very hard to distinguish # between CI issue and test bug in that case. Set timeout and fail loud # instead. if override_envvars is None: env = None else: env = os.environ.copy() env.update(override_envvars) proc = subprocess.run(command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT if stderr else subprocess.PIPE, env=env, encoding='utf-8', text=True, cwd=workdir, timeout=60 * 5) print('$', join_args(command)) print('stdout:') print(proc.stdout) if not stderr: print('stderr:') print(proc.stderr) if proc.returncode != 0: skipped, reason = handle_meson_skip_test(proc.stdout) if skipped: raise SkipTest(f'Project requested skipping: {reason}') raise subprocess.CalledProcessError(proc.returncode, command, output=proc.stdout) return proc.stdout def init(self, srcdir, *, extra_args=None, default_args=True, inprocess=False, override_envvars: T.Optional[T.Mapping[str, str]] = None, workdir=None, allow_fail: bool = False) -> str: """Call `meson setup` :param allow_fail: If set to true initialization is allowed to fail. When it does the log will be returned instead of stdout. :return: the value of stdout on success, or the meson log on failure when :param allow_fail: is true """ self.assertPathExists(srcdir) if extra_args is None: extra_args = [] if not isinstance(extra_args, list): extra_args = [extra_args] build_and_src_dir_args = [self.builddir, srcdir] args = [] if default_args: args += ['--prefix', self.prefix] if self.libdir: args += ['--libdir', self.libdir] for f in self.meson_native_files: args += ['--native-file', f] for f in self.meson_cross_files: args += ['--cross-file', f] self.privatedir = os.path.join(self.builddir, 'meson-private') if inprocess: try: returncode, out, err = run_configure_inprocess(['setup'] + self.meson_args + args + extra_args + build_and_src_dir_args, override_envvars) except Exception as e: if not allow_fail: self._print_meson_log() raise out = self._get_meson_log() # Best we can do here err = '' # type checkers can't figure out that on this path returncode will always be 0 returncode = 0 finally: # Close log file to satisfy Windows file locking mesonbuild.mlog.shutdown() mesonbuild.mlog._logger.log_dir = None mesonbuild.mlog._logger.log_file = None skipped, reason = handle_meson_skip_test(out) if skipped: raise SkipTest(f'Project requested skipping: {reason}') if returncode != 0: self._print_meson_log() print('Stdout:\n') print(out) print('Stderr:\n') print(err) if not allow_fail: raise RuntimeError('Configure failed') else: try: out = self._run(self.setup_command + args + extra_args + build_and_src_dir_args, override_envvars=override_envvars, workdir=workdir) except Exception: if not allow_fail: self._print_meson_log() raise out = self._get_meson_log() # best we can do here return out def build(self, target=None, *, extra_args=None, override_envvars=None, stderr=True): if extra_args is None: extra_args = [] # Add arguments for building the target (if specified), # and using the build dir (if required, with VS) args = get_builddir_target_args(self.backend, self.builddir, target) return self._run(self.build_command + args + extra_args, workdir=self.builddir, override_envvars=override_envvars, stderr=stderr) def clean(self, *, override_envvars=None): dir_args = get_builddir_target_args(self.backend, self.builddir, None) self._run(self.clean_command + dir_args, workdir=self.builddir, override_envvars=override_envvars) def run_tests(self, *, inprocess=False, override_envvars=None): if not inprocess: return self._run(self.test_command, workdir=self.builddir, override_envvars=override_envvars) else: with mock.patch.dict(os.environ, override_envvars): return run_mtest_inprocess(['-C', self.builddir])[1] def install(self, *, use_destdir=True, override_envvars=None): if self.backend is not Backend.ninja: raise SkipTest(f'{self.backend.name!r} backend can\'t install files') if use_destdir: destdir = {'DESTDIR': self.installdir} if override_envvars is None: override_envvars = destdir else: override_envvars.update(destdir) return self._run(self.install_command, workdir=self.builddir, override_envvars=override_envvars) def uninstall(self, *, override_envvars=None): self._run(self.uninstall_command, workdir=self.builddir, override_envvars=override_envvars) def run_target(self, target, *, override_envvars=None): ''' Run a Ninja target while printing the stdout and stderr to stdout, and also return a copy of it ''' return self.build(target=target, override_envvars=override_envvars) def setconf(self, arg, will_build=True): if not isinstance(arg, list): arg = [arg] if will_build: ensure_backend_detects_changes(self.backend) self._run(self.mconf_command + arg + [self.builddir]) def getconf(self, optname: str): opts = self.introspect('--buildoptions') for x in opts: if x.get('name') == optname: return x.get('value') self.fail(f'Option {optname} not found') def wipe(self): windows_proof_rmtree(self.builddir) def utime(self, f): ensure_backend_detects_changes(self.backend) os.utime(f) def get_compdb(self): if self.backend is not Backend.ninja: raise SkipTest(f'Compiler db not available with {self.backend.name} backend') try: with open(os.path.join(self.builddir, 'compile_commands.json'), encoding='utf-8') as ifile: contents = json.load(ifile) except FileNotFoundError: raise SkipTest('Compiler db not found') # If Ninja is using .rsp files, generate them, read their contents, and # replace it as the command for all compile commands in the parsed json. if len(contents) > 0 and contents[0]['command'].endswith('.rsp'): # Pretend to build so that the rsp files are generated self.build(extra_args=['-d', 'keeprsp', '-n']) for each in contents: # Extract the actual command from the rsp file compiler, rsp = each['command'].split(' @') rsp = os.path.join(self.builddir, rsp) # Replace the command with its contents with open(rsp, encoding='utf-8') as f: each['command'] = compiler + ' ' + f.read() return contents def get_meson_log_raw(self): with self._open_meson_log() as f: return f.read() def get_meson_log(self): with self._open_meson_log() as f: return f.readlines() def get_meson_log_compiler_checks(self): ''' Fetch a list command-lines run by meson for compiler checks. Each command-line is returned as a list of arguments. ''' prefix = 'Command line: `' suffix = '` -> 0\n' with self._open_meson_log() as log: cmds = [split_args(l[len(prefix):-len(suffix)]) for l in log if l.startswith(prefix)] return cmds def get_meson_log_sanitychecks(self): ''' Same as above, but for the sanity checks that were run ''' prefix = 'Sanity check compiler command line:' with self._open_meson_log() as log: cmds = [l[len(prefix):].split() for l in log if l.startswith(prefix)] return cmds def introspect(self, args): if isinstance(args, str): args = [args] out = subprocess.check_output(self.mintro_command + args + [self.builddir], universal_newlines=True) return json.loads(out) def introspect_directory(self, directory, args): if isinstance(args, str): args = [args] out = subprocess.check_output(self.mintro_command + args + [directory], universal_newlines=True) try: obj = json.loads(out) except Exception as e: print(out) raise e return obj def assertPathEqual(self, path1, path2): ''' Handles a lot of platform-specific quirks related to paths such as separator, case-sensitivity, etc. ''' self.assertEqual(PurePath(path1), PurePath(path2)) def assertPathListEqual(self, pathlist1, pathlist2): self.assertEqual(len(pathlist1), len(pathlist2)) worklist = list(zip(pathlist1, pathlist2)) for i in worklist: if i[0] is None: self.assertEqual(i[0], i[1]) else: self.assertPathEqual(i[0], i[1]) def assertPathBasenameEqual(self, path, basename): msg = f'{path!r} does not end with {basename!r}' # We cannot use os.path.basename because it returns '' when the path # ends with '/' for some silly reason. This is not how the UNIX utility # `basename` works. path_basename = PurePath(path).parts[-1] self.assertEqual(PurePath(path_basename), PurePath(basename), msg) def assertReconfiguredBuildIsNoop(self): 'Assert that we reconfigured and then there was nothing to do' ret = self.build(stderr=False) self.assertIn('The Meson build system', ret) if self.backend is Backend.ninja: for line in ret.split('\n'): if line in self.no_rebuild_stdout: break else: raise AssertionError('build was reconfigured, but was not no-op') elif self.backend is Backend.vs: # Ensure that some target said that no rebuild was done # XXX: Note CustomBuild did indeed rebuild, because of the regen checker! self.assertIn('ClCompile:\n All outputs are up-to-date.', ret) self.assertIn('Link:\n All outputs are up-to-date.', ret) # Ensure that no targets were built self.assertNotRegex(ret, re.compile('ClCompile:\n [^\n]*cl', flags=re.IGNORECASE)) self.assertNotRegex(ret, re.compile('Link:\n [^\n]*link', flags=re.IGNORECASE)) elif self.backend is Backend.xcode: raise SkipTest('Please help us fix this test on the xcode backend') else: raise RuntimeError(f'Invalid backend: {self.backend.name!r}') def assertBuildIsNoop(self): ret = self.build(stderr=False) if self.backend is Backend.ninja: self.assertIn(ret.split('\n')[-2], self.no_rebuild_stdout) elif self.backend is Backend.vs: # Ensure that some target of each type said that no rebuild was done # We always have at least one CustomBuild target for the regen checker self.assertIn('CustomBuild:\n All outputs are up-to-date.', ret) self.assertIn('ClCompile:\n All outputs are up-to-date.', ret) self.assertIn('Link:\n All outputs are up-to-date.', ret) # Ensure that no targets were built self.assertNotRegex(ret, re.compile('CustomBuild:\n [^\n]*cl', flags=re.IGNORECASE)) self.assertNotRegex(ret, re.compile('ClCompile:\n [^\n]*cl', flags=re.IGNORECASE)) self.assertNotRegex(ret, re.compile('Link:\n [^\n]*link', flags=re.IGNORECASE)) elif self.backend is Backend.xcode: raise SkipTest('Please help us fix this test on the xcode backend') else: raise RuntimeError(f'Invalid backend: {self.backend.name!r}') def assertRebuiltTarget(self, target): ret = self.build() if self.backend is Backend.ninja: self.assertIn(f'Linking target {target}', ret) elif self.backend is Backend.vs: # Ensure that this target was rebuilt linkre = re.compile('Link:\n [^\n]*link[^\n]*' + target, flags=re.IGNORECASE) self.assertRegex(ret, linkre) elif self.backend is Backend.xcode: raise SkipTest('Please help us fix this test on the xcode backend') else: raise RuntimeError(f'Invalid backend: {self.backend.name!r}') @staticmethod def get_target_from_filename(filename): base = os.path.splitext(filename)[0] if base.startswith(('lib', 'cyg')): return base[3:] return base def assertBuildRelinkedOnlyTarget(self, target): ret = self.build() if self.backend is Backend.ninja: linked_targets = [] for line in ret.split('\n'): if 'Linking target' in line: fname = line.rsplit('target ')[-1] linked_targets.append(self.get_target_from_filename(fname)) self.assertEqual(linked_targets, [target]) elif self.backend is Backend.vs: # Ensure that this target was rebuilt linkre = re.compile(r'Link:\n [^\n]*link.exe[^\n]*/OUT:".\\([^"]*)"', flags=re.IGNORECASE) matches = linkre.findall(ret) self.assertEqual(len(matches), 1, msg=matches) self.assertEqual(self.get_target_from_filename(matches[0]), target) elif self.backend is Backend.xcode: raise SkipTest('Please help us fix this test on the xcode backend') else: raise RuntimeError(f'Invalid backend: {self.backend.name!r}') def assertPathExists(self, path): m = f'Path {path!r} should exist' self.assertTrue(os.path.exists(path), msg=m) def assertPathDoesNotExist(self, path): m = f'Path {path!r} should not exist' self.assertFalse(os.path.exists(path), msg=m) def assertLength(self, val, length): assert len(val) == length, f'{val} is not length {length}'