gh-109276: libregrtest: use separated file for JSON #109277
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For example, the following hack to trigger a race condition adds logs into stderr: #109135 (comment) Without this change, libregrtest fails when tests are run with With this change, it just works as expected. |
libregrtest now uses a separated file descriptor to write test result as JSON. Previously, if a test wrote debug messages late around the JSON, the main test process failed to parse JSON. Rename TestResult.write_json() to TestResult.write_json_into(). worker_process() no longer writes an empty line at the end. There is no need to separate test process output from the JSON output anymore, since JSON is now written into a separated file descriptor. create_worker_process() now always spawn the process with close_fds=True.
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Oh, I forgot that |
serhiy-storchaka
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Sep 11, 2023
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libregrtest now uses a separated file descriptor to write test result as JSON. Previously, if a test wrote debug messages late around the JSON, the main test process failed to parse JSON.
Rename TestResult.write_json() to TestResult.write_json_into().
worker_process() no longer writes an empty line at the end. There is no need to separate test process output from the JSON output anymore, since JSON is now written into a separated file descriptor.