config.ini headers missing causes test framework failure #33588

The functional tests in the repository fail because the config.ini file is missing proper section headers, causing the test framework to throw a MissingSectionHeaderError.

This occurs when running tests like mempool_ephemeral_dust.py, producing the following error:

configparser.MissingSectionHeaderError: File contains no section headers. file: '.../test/config.ini', line: 1 '[environment]\n'

The root cause is either a missing [environment] header or an invisible BOM (Byte Order Mark) character at the beginning of the file.

Solution:

Ensure config.ini starts with a proper [environment] header.

Remove any invisible BOM characters.

Correct example of config.ini:

[environment] rpcuser=user rpcpassword=pass rpcport=18443

This change allows the functional tests to read the configuration properly and run without errors.

♻️ Automatically closing for now based on heuristics. Please leave a comment, if this was erroneous. Generally, please focus on creating high-quality, original content that demonstrates a clear understanding of the project's requirements and goals.

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For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/33588.

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