Updated to Chrome 45 (2454) moved from SVN to git.

bindings/dart/scripts/dart_tests.py

-# Copyright (C) 2014 Google Inc.  All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in the
-#    documentation and/or other materials provided with the distribution.
-#
-# THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
-# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
-# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
-# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-#
-
-import fnmatch
-import os
-import shutil
-import sys
-import tempfile
-
-from webkitpy.common.checkout.scm.detection import detect_scm_system
-from webkitpy.common.system import executive
-from webkitpy.common.system.executive import ScriptError
-
-# Add Source path to PYTHONPATH to support function calls to bindings/scripts
-# for compute_dependencies and idl_compiler
-module_path = os.path.dirname(__file__)
-source_path = os.path.normpath(os.path.join(module_path, os.pardir,
-                                            os.pardir, os.pardir, os.pardir,
-                                            'Source'))
-sys.path.append(source_path)
-
-from bindings.scripts.compute_interfaces_info import compute_interfaces_info, interfaces_info
-from bindings.scripts.idl_compiler import IdlCompilerV8
-
-
-PASS_MESSAGE = 'All tests PASS!'
-FAIL_MESSAGE = """Some tests FAIL!
-To update the reference files, execute:
-    run-bindings-tests --reset-results
-
-If the failures are not due to your changes, test results may be out of sync;
-please rebaseline them in a separate CL, after checking that tests fail in ToT.
-In CL, please set:
-NOTRY=true
-TBR=(someone in Source/bindings/OWNERS or WATCHLISTS:bindings)
-"""
-
-DEPENDENCY_IDL_FILES = set([
-    'SupportTestPartialInterface.idl',
-    'TestImplements.idl',
-    'TestImplements2.idl',
-    'TestImplements3.idl',
-    'TestPartialInterface.idl',
-    'TestPartialInterfacePython.idl',
-    'TestPartialInterfacePython2.idl',
-])
-
-
-EXTENDED_ATTRIBUTES_FILE = 'bindings/IDLExtendedAttributes.txt'
-
-all_input_directory = '.'  # Relative to Source/
-test_input_directory = os.path.join('bindings', 'tests', 'idls')
-reference_directory = os.path.join('bindings', 'tests', 'results')
-
-
-class ScopedTempFileProvider(object):
-    def __init__(self):
-        self.file_handles = []
-        self.file_paths = []
-        self.dir_paths = []
-
-    def __enter__(self):
-        return self
-
-    def __exit__(self, exc_type, exc_value, traceback):
-        for file_handle in self.file_handles:
-            os.close(file_handle)
-        for file_path in self.file_paths:
-            os.remove(file_path)
-        for dir_path in self.dir_paths:
-            # Temporary directories are used as output directories, so they
-            # contains unknown files (they aren't empty), hence use rmtree
-            shutil.rmtree(dir_path)
-
-    def new_temp_file(self):
-        file_handle, file_path = tempfile.mkstemp()
-        self.file_handles.append(file_handle)
-        self.file_paths.append(file_path)
-        return file_handle, file_path
-
-    def new_temp_dir(self):
-        dir_path = tempfile.mkdtemp()
-        self.dir_paths.append(dir_path)
-        return dir_path
-
-
-class DartTests(object):
-    def __init__(self, reset_results, verbose, provider):
-        self.reset_results = reset_results
-        self.verbose = verbose
-        self.executive = executive.Executive()
-        self.provider = provider
-        self.idl_compiler = None
-        _, self.interfaces_info_filename = provider.new_temp_file()
-        # Generate output into the reference directory if resetting results, or
-        # a temp directory if not.
-        if reset_results:
-            self.output_directory = reference_directory
-        else:
-            self.output_directory = provider.new_temp_dir()
-
-    def run_command(self, cmd):
-        output = self.executive.run_command(cmd)
-        if output:
-            print output
-
-    def generate_from_idl(self, idl_file):
-        try:
-            idl_file_fullpath = os.path.realpath(idl_file)
-            self.idl_compiler.compile_file(idl_file_fullpath)
-        except ScriptError, e:
-            print 'ERROR: idl_compiler.py: ' + os.path.basename(idl_file)
-            print e.output
-            return e.exit_code
-
-        return 0
-
-    def generate_interface_dependencies(self):
-        def idl_paths(directory):
-            return [os.path.join(directory, input_file)
-                    for input_file in os.listdir(directory)
-                    if input_file.endswith('.idl')]
-
-        def idl_paths_recursive(directory):
-            idl_paths = []
-            for dirpath, _, files in os.walk(directory):
-                idl_paths.extend(os.path.join(dirpath, filename)
-                                 for filename in fnmatch.filter(files, '*.idl'))
-            return idl_paths
-
-        def write_list_file(idl_paths):
-            list_file, list_filename = self.provider.new_temp_file()
-            list_contents = ''.join(idl_path + '\n'
-                                    for idl_path in idl_paths)
-            os.write(list_file, list_contents)
-            return list_filename
-
-        # We compute interfaces info for *all* IDL files, not just test IDL
-        # files, as code generator output depends on inheritance (both ancestor
-        # chain and inherited extended attributes), and some real interfaces
-        # are special-cased, such as Node.
-        #
-        # For example, when testing the behavior of interfaces that inherit
-        # from Node, we also need to know that these inherit from EventTarget,
-        # since this is also special-cased and Node inherits from EventTarget,
-        # but this inheritance information requires computing dependencies for
-        # the real Node.idl file.
-        try:
-            compute_interfaces_info(idl_paths_recursive(all_input_directory))
-
-        except ScriptError, e:
-            print 'ERROR: compute_interfaces_info.py'
-            print e.output
-            return e.exit_code
-
-        return 0
-
-    def delete_cache_files(self):
-        # FIXME: Instead of deleting cache files, don't generate them.
-        cache_files = [os.path.join(self.output_directory, output_file)
-                       for output_file in os.listdir(self.output_directory)
-                       if (output_file in ('lextab.py',  # PLY lex
-                                           'lextab.pyc',
-                                           'parsetab.pickle') or  # PLY yacc
-                               output_file.endswith('.cache'))]  # Jinja
-        for cache_file in cache_files:
-            os.remove(cache_file)
-
-    def identical_file(self, reference_filename, output_filename):
-        reference_basename = os.path.basename(reference_filename)
-        cmd = ['diff',
-               '-u',
-               '-N',
-               reference_filename,
-               output_filename]
-        try:
-            self.run_command(cmd)
-        except ScriptError, e:
-            # run_command throws an exception on diff (b/c non-zero exit code)
-            print 'FAIL: %s' % reference_basename
-            print e.output
-            return False
-
-        if self.verbose:
-            print 'PASS: %s' % reference_basename
-        return True
-
-    def identical_output_files(self):
-        file_pairs = [(os.path.join(reference_directory, output_file),
-                       os.path.join(self.output_directory, output_file))
-                      for output_file in os.listdir(self.output_directory)]
-        return all([self.identical_file(reference_filename, output_filename)
-                    for (reference_filename, output_filename) in file_pairs])
-
-    def no_excess_files(self):
-        generated_files = set(os.listdir(self.output_directory))
-        generated_files.add('.svn')  # Subversion working copy directory
-        excess_files = [output_file
-                        for output_file in os.listdir(reference_directory)
-                        if output_file not in generated_files]
-        if excess_files:
-            print ('Excess reference files! '
-                  '(probably cruft from renaming or deleting):\n' +
-                  '\n'.join(excess_files))
-            return False
-        return True
-
-    def run_tests(self):
-        # Generate output, immediately dying on failure
-        if self.generate_interface_dependencies():
-            return False
-
-        self.idl_compiler = IdlCompilerV8(self.output_directory,
-                                          EXTENDED_ATTRIBUTES_FILE,
-                                          interfaces_info=interfaces_info,
-                                          only_if_changed=True)
-
-        for input_filename in os.listdir(test_input_directory):
-            if not input_filename.endswith('.idl'):
-                continue
-            if input_filename in DEPENDENCY_IDL_FILES:
-                # Dependencies aren't built (they are used by the dependent)
-                if self.verbose:
-                    print 'DEPENDENCY: %s' % input_filename
-                continue
-
-            idl_path = os.path.join(test_input_directory, input_filename)
-            if self.generate_from_idl(idl_path):
-                return False
-            if self.reset_results and self.verbose:
-                print 'Reset results: %s' % input_filename
-
-        self.delete_cache_files()
-
-        # Detect all changes
-        passed = self.identical_output_files()
-        passed &= self.no_excess_files()
-        return passed
-
-    def main(self):
-        current_scm = detect_scm_system(os.curdir)
-        os.chdir(os.path.join(current_scm.checkout_root, 'Source'))
-
-        all_tests_passed = self.run_tests()
-        if all_tests_passed:
-            if self.verbose:
-                print
-                print PASS_MESSAGE
-            return 0
-        print
-        print FAIL_MESSAGE
-        return -1
-
-
-def run_dart_tests(reset_results, verbose):
-    with ScopedTempFileProvider() as provider:
-        return DartTests(reset_results, verbose, provider).main()