""" Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. See https://llvm.org/LICENSE.txt for license information. SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception Provides the LLDBTestResult class, which holds information about progress and results of a single test run. """ # System modules import os import traceback # Third-party modules import unittest2 # LLDB Modules from . import configuration from lldbsuite.test_event import build_exception class LLDBTestResult(unittest2.TextTestResult): """ Enforce a singleton pattern to allow introspection of test progress. Overwrite addError(), addFailure(), and addExpectedFailure() methods to enable each test instance to track its failure/error status. It is used in the LLDB test framework to emit detailed trace messages to a log file for easier human inspection of test failures/errors. """ __singleton__ = None __ignore_singleton__ = False @staticmethod def getTerminalSize(): import os env = os.environ def ioctl_GWINSZ(fd): try: import fcntl import termios import struct cr = struct.unpack('hh', fcntl.ioctl(fd, termios.TIOCGWINSZ, '1234')) except: return return cr cr = ioctl_GWINSZ(0) or ioctl_GWINSZ(1) or ioctl_GWINSZ(2) if not cr: try: fd = os.open(os.ctermid(), os.O_RDONLY) cr = ioctl_GWINSZ(fd) os.close(fd) except: pass if not cr: cr = (env.get('LINES', 25), env.get('COLUMNS', 80)) return int(cr[1]), int(cr[0]) def __init__(self, *args): if not LLDBTestResult.__ignore_singleton__ and LLDBTestResult.__singleton__: raise Exception("LLDBTestResult instantiated more than once") super(LLDBTestResult, self).__init__(*args) LLDBTestResult.__singleton__ = self # Now put this singleton into the lldb module namespace. configuration.test_result = self # Computes the format string for displaying the counter. counterWidth = len(str(configuration.suite.countTestCases())) self.fmt = "%" + str(counterWidth) + "d: " self.indentation = ' ' * (counterWidth + 2) # This counts from 1 .. suite.countTestCases(). self.counter = 0 (width, height) = LLDBTestResult.getTerminalSize() def _config_string(self, test): compiler = getattr(test, "getCompiler", None) arch = getattr(test, "getArchitecture", None) return "%s-%s" % (compiler() if compiler else "", arch() if arch else "") def _exc_info_to_string(self, err, test): """Overrides superclass TestResult's method in order to append our test config info string to the exception info string.""" if hasattr(test, "getArchitecture") and hasattr(test, "getCompiler"): return '%sConfig=%s-%s' % (super(LLDBTestResult, self)._exc_info_to_string(err, test), test.getArchitecture(), test.getCompiler()) else: return super(LLDBTestResult, self)._exc_info_to_string(err, test) def getDescription(self, test): doc_first_line = test.shortDescription() if self.descriptions and doc_first_line: return '\n'.join((str(test), self.indentation + doc_first_line)) else: return str(test) def _getTestPath(self, test): # Use test.test_filename if the test was created with # lldbinline.MakeInlineTest(). if test is None: return "" elif hasattr(test, "test_filename"): return test.test_filename else: import inspect return inspect.getsourcefile(test.__class__) def _getFileBasedCategories(self, test): """ Returns the list of categories to which this test case belongs by collecting values of "categories" files. We start at the folder the test is in and traverse the hierarchy upwards until the test-suite root directory. """ start_path = self._getTestPath(test) import os.path folder = os.path.dirname(start_path) from lldbsuite import lldb_test_root as test_root if test_root != os.path.commonprefix([folder, test_root]): raise Exception("The test file %s is outside the test root directory" % start_path) categories = set() while not os.path.samefile(folder, test_root): categories_file_name = os.path.join(folder, "categories") if os.path.exists(categories_file_name): categories_file = open(categories_file_name, 'r') categories_str = categories_file.readline().strip() categories_file.close() categories.update(categories_str.split(',')) folder = os.path.dirname(folder) return list(categories) def getCategoriesForTest(self, test): """ Gets all the categories for the currently running test method in test case """ test_categories = [] test_method = getattr(test, test._testMethodName) if test_method is not None and hasattr(test_method, "categories"): test_categories.extend(test_method.categories) test_categories.extend(self._getFileBasedCategories(test)) return test_categories def hardMarkAsSkipped(self, test): getattr(test, test._testMethodName).__func__.__unittest_skip__ = True getattr( test, test._testMethodName).__func__.__unittest_skip_why__ = "test case does not fall in any category of interest for this run" def checkExclusion(self, exclusion_list, name): if exclusion_list: import re for item in exclusion_list: if re.search(item, name): return True return False def checkCategoryExclusion(self, exclusion_list, test): return not set(exclusion_list).isdisjoint( self.getCategoriesForTest(test)) def startTest(self, test): if configuration.shouldSkipBecauseOfCategories( self.getCategoriesForTest(test)): self.hardMarkAsSkipped(test) if self.checkExclusion( configuration.skip_tests, test.id()): self.hardMarkAsSkipped(test) self.counter += 1 test.test_number = self.counter if self.showAll: self.stream.write(self.fmt % self.counter) super(LLDBTestResult, self).startTest(test) def addSuccess(self, test): if (self.checkExclusion( configuration.xfail_tests, test.id()) or self.checkCategoryExclusion( configuration.xfail_categories, test)): self.addUnexpectedSuccess(test, None) return super(LLDBTestResult, self).addSuccess(test) self.stream.write( "PASS: LLDB (%s) :: %s\n" % (self._config_string(test), str(test))) def _isBuildError(self, err_tuple): exception = err_tuple[1] return isinstance(exception, build_exception.BuildError) def _saveBuildErrorTuple(self, test, err): # Adjust the error description so it prints the build command and build error # rather than an uninformative Python backtrace. build_error = err[1] error_description = "{}\nTest Directory:\n{}".format( str(build_error), os.path.dirname(self._getTestPath(test))) self.errors.append((test, error_description)) self._mirrorOutput = True def addError(self, test, err): configuration.sdir_has_content = True if self._isBuildError(err): self._saveBuildErrorTuple(test, err) else: super(LLDBTestResult, self).addError(test, err) method = getattr(test, "markError", None) if method: method() self.stream.write( "FAIL: LLDB (%s) :: %s\n" % (self._config_string(test), str(test))) def addCleanupError(self, test, err): configuration.sdir_has_content = True super(LLDBTestResult, self).addCleanupError(test, err) method = getattr(test, "markCleanupError", None) if method: method() self.stream.write( "CLEANUP ERROR: LLDB (%s) :: %s\n%s\n" % (self._config_string(test), str(test), traceback.format_exc())) def addFailure(self, test, err): if (self.checkExclusion( configuration.xfail_tests, test.id()) or self.checkCategoryExclusion( configuration.xfail_categories, test)): self.addExpectedFailure(test, err, None) return configuration.sdir_has_content = True super(LLDBTestResult, self).addFailure(test, err) method = getattr(test, "markFailure", None) if method: method() self.stream.write( "FAIL: LLDB (%s) :: %s\n" % (self._config_string(test), str(test))) if configuration.use_categories: test_categories = self.getCategoriesForTest(test) for category in test_categories: if category in configuration.failures_per_category: configuration.failures_per_category[ category] = configuration.failures_per_category[category] + 1 else: configuration.failures_per_category[category] = 1 def addExpectedFailure(self, test, err, bugnumber): configuration.sdir_has_content = True super(LLDBTestResult, self).addExpectedFailure(test, err, bugnumber) method = getattr(test, "markExpectedFailure", None) if method: method(err, bugnumber) self.stream.write( "XFAIL: LLDB (%s) :: %s\n" % (self._config_string(test), str(test))) def addSkip(self, test, reason): configuration.sdir_has_content = True super(LLDBTestResult, self).addSkip(test, reason) method = getattr(test, "markSkippedTest", None) if method: method() self.stream.write( "UNSUPPORTED: LLDB (%s) :: %s (%s) \n" % (self._config_string(test), str(test), reason)) def addUnexpectedSuccess(self, test, bugnumber): configuration.sdir_has_content = True super(LLDBTestResult, self).addUnexpectedSuccess(test, bugnumber) method = getattr(test, "markUnexpectedSuccess", None) if method: method(bugnumber) self.stream.write( "XPASS: LLDB (%s) :: %s\n" % (self._config_string(test), str(test)))