Add unit tests for untested modules

[ruck314]

Summary

• Add 17 new test files (1,773 lines) covering remaining modules without unit tests
• 82 new test cases pass, 5 skip gracefully (GPIB library, ZMQ client GIL constraint)
• C++ CRC test via doctest (header-only CRC.h check vectors)

Modules now covered

Protocols: SrpV0, SRP Cmd, Packetizer CRC (C++), Packetizer V1 Core, RSSI Client+Server, GPIB (conditional)
Utilities: PRBS generator/checker, PrbsRx/PrbsTx/PrbsPair devices, HLS RegInterfParser
Interfaces: Stream TCP bridge, Stream Fifo device, Stream Variable, ZmqClient (skipped), AxiStreamDmaMon (mock), hardware module imports
PyDM: Smoke-import all 18 tools/widgets (conditional skip when Qt unavailable)

Test plan

• ./scripts/run_linters.sh clean (flake8 on new files)
• cmake -S . -B build -DROGUE_INSTALL=local -DROGUE_BUILD_TESTS=ON && cmake --build build -j && cmake --build build --target install
• ctest --test-dir build --output-on-failure -L cpp
• python -m pytest <new test files> -v
• python -m pytest -m "not perf" --ignore=tests/perf

Note

• XVC tests excluded per PR XVC: event-driven refactor + CI regression test #1182
• ZmqClient tests are written but skipped: the C++ ZmqClient deadlocks with an in-process Python ZmqServer under pytest's GIL constraints (works standalone). The Python ZMQ server is already covered by test_interfaces_zmq_server.py.

[Copilot]

Pull request overview

Adds a broad set of new unit/integration tests to close previously identified coverage gaps across protocols, utilities, interfaces, PyDM imports, and C++ packetizer CRC functionality.

Changes:

• Add new pytest-based tests for SRP (v0 + Cmd), PRBS utilities/devices, stream interfaces (FIFO device, stream variable), TCP bridge, RSSI, Packetizer V1, HLS RegInterfParser, and conditional smoke imports (GPIB / hardware / PyDM).
• Add new C++ doctest coverage for rogue/protocols/packetizer/CRC.h and wire it into the CMake test build.
• Extend tests/cpp CMake structure to include the new protocols/packetizer test directory.

Reviewed changes

Copilot reviewed 19 out of 19 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
tests/utilities/test_reg_interf_parser.py	Tests HLS RegInterfParser parsing and error exits using temp zip/header inputs.
tests/utilities/test_prbs_devices.py	Exercises PyRogue PRBS device trees and basic loopback behavior.
tests/utilities/test_prbs.py	Tests rogue.utilities.Prbs generation/checking, widths, counters, and enable/disable API.
tests/protocols/test_srpv0.py	Adds SRPv0 end-to-end tests using a Python responder to emulate hardware.
tests/protocols/test_srp_cmd.py	Validates SRP Cmd frame size and content.
tests/protocols/test_gpib.py	Conditional import/skip smoke tests for optional GPIB dependencies.
tests/interfaces/test_zmq_client.py	Adds (currently skipped) ZmqClient API tests and a local ZmqServer setup helper.
tests/interfaces/test_stream_variable.py	Tests YAML streaming behavior of pyrogue.interfaces.stream.Variable.
tests/interfaces/test_stream_fifo_device.py	Tests PyRogue stream Fifo device variables and stream flow.
tests/interfaces/test_pydm_tools_widgets_smoke.py	Conditional import smoke tests for PyDM/Qt tools/widgets.
tests/interfaces/test_hardware_imports.py	Conditional import smoke tests for rogue.hardware on supported platforms.
tests/interfaces/test_axi_stream_dma_mon.py	Tests DMA monitor device variables using a mock DMA object (conditional import).
tests/integration/test_stream_tcp_bridge.py	Adds integration tests for TcpServer/TcpClient frame delivery and ordering.
tests/integration/test_rssi_loopback.py	Adds RSSI handshake/data transfer/invariants integration checks over UDP.
tests/integration/test_packetizer_v1.py	Adds integration tests for packetizer v1 routing and fragmentation.
tests/cpp/protocols/packetizer/test_crc.cpp	Adds doctest coverage for CRC check vectors and incremental/table modes.
tests/cpp/protocols/packetizer/CMakeLists.txt	Registers the new CRC C++ test target.
tests/cpp/protocols/CMakeLists.txt	Adds protocols subtree to C++ tests.
tests/cpp/CMakeLists.txt	Includes protocols subtree in overall C++ test build.

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[Copilot]

Pull request overview

Copilot reviewed 20 out of 20 changed files in this pull request and generated 1 comment.

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[Copilot]

Pull request overview

Copilot reviewed 20 out of 20 changed files in this pull request and generated no new comments.

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 58.97%. Comparing base (b1e9040) to head (6cc49cf).
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Additional details and impacted files

@@               Coverage Diff               @@
##           pre-release    #1185      +/-   ##
===============================================
+ Coverage        56.05%   58.97%   +2.92%     
===============================================
  Files               70       72       +2     
  Lines             8137     8168      +31     
  Branches          1209     1209              
===============================================
+ Hits              4561     4817     +256     
+ Misses            3293     3059     -234     
- Partials           283      292       +9     

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