| # Copyright 2022 The Android Open Source Project |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| """Unittests for the repo_trace.py module.""" |
| |
| import os |
| import unittest |
| from unittest import mock |
| |
| import repo_trace |
| |
| |
| class TraceTests(unittest.TestCase): |
| """Check Trace behavior.""" |
| |
| def testTrace_MaxSizeEnforced(self): |
| content = 'git chicken' |
| |
| with repo_trace.Trace(content, first_trace=True): |
| pass |
| first_trace_size = os.path.getsize(repo_trace._TRACE_FILE) |
| |
| with repo_trace.Trace(content): |
| pass |
| self.assertGreater( |
| os.path.getsize(repo_trace._TRACE_FILE), first_trace_size) |
| |
| # Check we clear everything is the last chunk is larger than _MAX_SIZE. |
| with mock.patch('repo_trace._MAX_SIZE', 0): |
| with repo_trace.Trace(content, first_trace=True): |
| pass |
| self.assertEqual(first_trace_size, |
| os.path.getsize(repo_trace._TRACE_FILE)) |
| |
| # Check we only clear the chunks we need to. |
| repo_trace._MAX_SIZE = (first_trace_size + 1) / (1024 * 1024) |
| with repo_trace.Trace(content, first_trace=True): |
| pass |
| self.assertEqual(first_trace_size * 2, |
| os.path.getsize(repo_trace._TRACE_FILE)) |
| |
| with repo_trace.Trace(content, first_trace=True): |
| pass |
| self.assertEqual(first_trace_size * 2, |
| os.path.getsize(repo_trace._TRACE_FILE)) |