This test verifies that the read position of a file is reset in the event of truncation. Failing to do so typically results loss of any new data written to the file.

1. Each subject is configured to tail a test log file and send it to a downstream service.
2. The subject is started.
3. The test log file is truncated.
4. A unique new line is added to the test log file.
5. Assert that the downstream service received the unique new line.

You can run this test via:

test -t file_truncate_correctness

• Setup
• Development
• How it works
• Vector docs
• Vector repo
• Vector website