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#!/usr/bin/env python3
# Copyright 2018 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import sys
import tempfile
import unittest
# Configuring the path for the v8_presubmit module
TOOLS_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.append(TOOLS_ROOT)
from v8_presubmit import FileContentsCache, CacheableSourceFileProcessor
class FakeCachedProcessor(CacheableSourceFileProcessor):
def __init__(self, cache_file_path):
super(FakeCachedProcessor, self).__init__(
use_cache=True, cache_file_path=cache_file_path, file_type='.test')
def GetProcessorWorker(self):
return object
def GetProcessorScript(self):
return "echo", []
def DetectUnformattedFiles(_, cmd, worker, files):
raise NotImplementedError
class FileContentsCacheTest(unittest.TestCase):
def setUp(self):
_, self.cache_file_path = tempfile.mkstemp()
cache = FileContentsCache(self.cache_file_path)
cache.Load()
def generate_file():
_, file_name = tempfile.mkstemp()
with open(file_name, "w") as f:
f.write(file_name)
return file_name
self.target_files = [generate_file() for _ in range(2)]
unchanged_files = cache.FilterUnchangedFiles(self.target_files)
self.assertEqual(len(unchanged_files), 2)
cache.Save()
def tearDown(self):
for file in [self.cache_file_path] + self.target_files:
os.remove(file)
def testCachesFiles(self):
cache = FileContentsCache(self.cache_file_path)
cache.Load()
changed_files = cache.FilterUnchangedFiles(self.target_files)
self.assertListEqual(changed_files, [])
modified_file = self.target_files[0]
with open(modified_file, "w") as f:
f.write("modification")
changed_files = cache.FilterUnchangedFiles(self.target_files)
self.assertListEqual(changed_files, [modified_file])
def testCacheableSourceFileProcessor(self):
class CachedProcessor(FakeCachedProcessor):
def DetectFilesToChange(_, files):
self.assertListEqual(files, [])
return []
cached_processor = CachedProcessor(cache_file_path=self.cache_file_path)
cached_processor.ProcessFiles(self.target_files)
def testCacheableSourceFileProcessorWithModifications(self):
modified_file = self.target_files[0]
with open(modified_file, "w") as f:
f.write("modification")
class CachedProcessor(FakeCachedProcessor):
def DetectFilesToChange(_, files):
self.assertListEqual(files, [modified_file])
return []
cached_processor = CachedProcessor(
cache_file_path=self.cache_file_path,
)
cached_processor.ProcessFiles(self.target_files)
if __name__ == '__main__':
unittest.main()
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