| import errno |
| import os |
| import time |
| |
| import lit.Test # pylint: disable=import-error |
| import lit.TestRunner # pylint: disable=import-error |
| import lit.util # pylint: disable=import-error |
| |
| from libcxx.test.executor import LocalExecutor as LocalExecutor |
| import libcxx.util |
| |
| |
| class LibcxxTestFormat(object): |
| """ |
| Custom test format handler for use with the test format use by libc++. |
| |
| Tests fall into two categories: |
| FOO.pass.cpp - Executable test which should compile, run, and exit with |
| code 0. |
| FOO.fail.cpp - Negative test case which is expected to fail compilation. |
| FOO.sh.cpp - A test that uses LIT's ShTest format. |
| """ |
| |
| def __init__(self, cxx, use_verify_for_fail, execute_external, |
| executor, exec_env): |
| self.cxx = cxx |
| self.use_verify_for_fail = use_verify_for_fail |
| self.execute_external = execute_external |
| self.executor = executor |
| self.exec_env = dict(exec_env) |
| |
| # TODO: Move this into lit's FileBasedTest |
| def getTestsInDirectory(self, testSuite, path_in_suite, |
| litConfig, localConfig): |
| source_path = testSuite.getSourcePath(path_in_suite) |
| for filename in os.listdir(source_path): |
| # Ignore dot files and excluded tests. |
| if filename.startswith('.') or filename in localConfig.excludes: |
| continue |
| |
| filepath = os.path.join(source_path, filename) |
| if not os.path.isdir(filepath): |
| if any([filename.endswith(ext) |
| for ext in localConfig.suffixes]): |
| yield lit.Test.Test(testSuite, path_in_suite + (filename,), |
| localConfig) |
| |
| def execute(self, test, lit_config): |
| while True: |
| try: |
| return self._execute(test, lit_config) |
| except OSError as oe: |
| if oe.errno != errno.ETXTBSY: |
| raise |
| time.sleep(0.1) |
| |
| def _execute(self, test, lit_config): |
| name = test.path_in_suite[-1] |
| is_sh_test = name.endswith('.sh.cpp') |
| is_pass_test = name.endswith('.pass.cpp') |
| is_fail_test = name.endswith('.fail.cpp') |
| |
| if test.config.unsupported: |
| return (lit.Test.UNSUPPORTED, |
| "A lit.local.cfg marked this unsupported") |
| |
| res = lit.TestRunner.parseIntegratedTestScript( |
| test, require_script=is_sh_test) |
| # Check if a result for the test was returned. If so return that |
| # result. |
| if isinstance(res, lit.Test.Result): |
| return res |
| if lit_config.noExecute: |
| return lit.Test.Result(lit.Test.PASS) |
| # res is not an instance of lit.test.Result. Expand res into its parts. |
| script, tmpBase, execDir = res |
| # Check that we don't have run lines on tests that don't support them. |
| if not is_sh_test and len(script) != 0: |
| lit_config.fatal('Unsupported RUN line found in test %s' % name) |
| |
| # Dispatch the test based on its suffix. |
| if is_sh_test: |
| if not isinstance(self.executor, LocalExecutor): |
| # We can't run ShTest tests with a executor yet. |
| # For now, bail on trying to run them |
| return lit.Test.UNSUPPORTED, 'ShTest format not yet supported' |
| return lit.TestRunner._runShTest(test, lit_config, |
| self.execute_external, script, |
| tmpBase, execDir) |
| elif is_fail_test: |
| return self._evaluate_fail_test(test) |
| elif is_pass_test: |
| return self._evaluate_pass_test(test, tmpBase, execDir, lit_config) |
| else: |
| # No other test type is supported |
| assert False |
| |
| def _clean(self, exec_path): # pylint: disable=no-self-use |
| libcxx.util.cleanFile(exec_path) |
| |
| def _evaluate_pass_test(self, test, tmpBase, execDir, lit_config): |
| source_path = test.getSourcePath() |
| exec_path = tmpBase + '.exe' |
| object_path = tmpBase + '.o' |
| # Create the output directory if it does not already exist. |
| lit.util.mkdir_p(os.path.dirname(tmpBase)) |
| try: |
| # Compile the test |
| cmd, out, err, rc = self.cxx.compileLinkTwoSteps( |
| source_path, out=exec_path, object_file=object_path, |
| cwd=execDir) |
| compile_cmd = cmd |
| if rc != 0: |
| report = libcxx.util.makeReport(cmd, out, err, rc) |
| report += "Compilation failed unexpectedly!" |
| return lit.Test.FAIL, report |
| # Run the test |
| local_cwd = os.path.dirname(source_path) |
| env = None |
| if self.exec_env: |
| env = self.exec_env |
| # TODO: Only list actually needed files in file_deps. |
| # Right now we just mark all of the .dat files in the same |
| # directory as dependencies, but it's likely less than that. We |
| # should add a `// FILE-DEP: foo.dat` to each test to track this. |
| data_files = [os.path.join(local_cwd, f) |
| for f in os.listdir(local_cwd) if f.endswith('.dat')] |
| cmd, out, err, rc = self.executor.run(exec_path, [exec_path], |
| local_cwd, data_files, env) |
| if rc != 0: |
| report = libcxx.util.makeReport(cmd, out, err, rc) |
| report = "Compiled With: %s\n%s" % (compile_cmd, report) |
| report += "Compiled test failed unexpectedly!" |
| return lit.Test.FAIL, report |
| return lit.Test.PASS, '' |
| finally: |
| # Note that cleanup of exec_file happens in `_clean()`. If you |
| # override this, cleanup is your reponsibility. |
| libcxx.util.cleanFile(object_path) |
| self._clean(exec_path) |
| |
| def _evaluate_fail_test(self, test): |
| source_path = test.getSourcePath() |
| with open(source_path, 'r') as f: |
| contents = f.read() |
| verify_tags = ['expected-note', 'expected-remark', 'expected-warning', |
| 'expected-error', 'expected-no-diagnostics'] |
| use_verify = self.use_verify_for_fail and \ |
| any([tag in contents for tag in verify_tags]) |
| extra_flags = [] |
| if use_verify: |
| extra_flags += ['-Xclang', '-verify', |
| '-Xclang', '-verify-ignore-unexpected=note'] |
| cmd, out, err, rc = self.cxx.compile(source_path, out=os.devnull, |
| flags=extra_flags) |
| expected_rc = 0 if use_verify else 1 |
| if rc == expected_rc: |
| return lit.Test.PASS, '' |
| else: |
| report = libcxx.util.makeReport(cmd, out, err, rc) |
| report_msg = ('Expected compilation to fail!' if not use_verify else |
| 'Expected compilation using verify to pass!') |
| return lit.Test.FAIL, report + report_msg + '\n' |
