Add test coverage for oversized block messages
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Authored by roqqit on Mon, Jun 17, 21:01.

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Reviewers

Fabien
PiRK

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Restricted Owners Package	(Owns No Changed Paths)
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Summary

Oversized blocks are treated differently from bitcoin core, so extra test coverage near boundaries is warranted.

Test Plan

./test/functional/test_runner.py p2p_invalid_messages

Repository

rABC Bitcoin ABC

Branch

oversized-block-tests

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Lint Passed

Unit

No Test Coverage

Build Status

Buildable 29331
Build 58198: Build Diff	build-without-wallet · build-debug · build-clang · build-diff · build-clang-tidy
Build 58197: arc lint + arc unit

Owners added a reviewer: Restricted Owners Package.Mon, Jun 17, 21:01

roqqit requested review of this revision.Mon, Jun 17, 21:01

Fabien requested changes to this revision.Tue, Jun 18, 06:40

Fabien added a subscriber: Fabien.

Fabien added inline comments.

test/functional/p2p_invalid_messages.py
315	I still don't think you need blockmaxsize, which is only used for mining

This revision now requires changes to proceed.Tue, Jun 18, 06:40

The code looks goods. For future maintenance and ease of review, some additional comments would help.

test/functional/p2p_invalid_messages.py
294–295
296	Maybe add a comment that `size - 5` works for this particular compact size range `0x10000 <= size < 0x100000000`.

PiRK added inline comments.Tue, Jun 18, 07:11

test/functional/p2p_invalid_messages.py
315	The node won't start if excessiveblocksize < DEFAULT_MAX_BLOCK_SIZE. Here also a comment would be useful for future maintenance.

test/functional/p2p_invalid_messages.py
296	I am considering a patch that bumps this arbitrary value to `str_data=b'\xff'` everywhere because I ran into the limit when writing the new tests. I can include the comment in that patch.