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62 lines
1.8 KiB
Python
62 lines
1.8 KiB
Python
"""
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标准输出滚动日志流的边界行为测试。
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"""
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from __future__ import annotations
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import sys
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from pathlib import Path
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from app.adapters.system import stdio
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def test_rotating_line_stream_buffers_lines_and_flushes_partial_message(
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tmp_path: Path,
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) -> None:
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"""
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滚动日志流应按行写入，并在 flush 时落下未结束的半行消息。
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"""
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log_file = tmp_path / "logs" / "stdout.log"
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log_file.parent.mkdir()
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stream = stdio.RotatingLineStream(log_file, max_bytes=1024, backup_count=1)
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try:
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assert stream.writable() is True
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assert stream.isatty() is False
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assert stream.write("") == 0
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assert stream.write("first\r\nsecond\npartial") == len("first\r\nsecond\npartial")
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stream.flush()
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assert log_file.read_text(encoding="utf-8").splitlines() == [
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"first",
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"second",
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"partial",
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]
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finally:
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for handler in stream._logger.handlers:
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handler.close()
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stream._logger.removeHandler(handler)
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def test_configure_rotating_stdio_creates_parent_and_replaces_process_streams(
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tmp_path: Path,
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) -> None:
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"""
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配置入口应创建父目录并同时替换 stdout 与 stderr。
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"""
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original_stdout = sys.stdout
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original_stderr = sys.stderr
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stream = stdio.configure_rotating_stdio(
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log_file=tmp_path / "nested" / "stdout.log",
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max_bytes=1024,
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backup_count=1,
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)
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try:
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assert sys.stdout is stream
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assert sys.stderr is stream
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assert stream._logger.handlers
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finally:
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sys.stdout = original_stdout
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sys.stderr = original_stderr
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for handler in stream._logger.handlers:
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handler.close()
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stream._logger.removeHandler(handler)
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