linux-kernel - [RFC PATCH v5 0/4] fpga: add initial KUnit tests for the subsystem

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Message-Id: <20230511141922.437328-1-marpagan@redhat.com>
Date:   Thu, 11 May 2023 16:19:18 +0200
From:   Marco Pagani <marpagan@...hat.com>
To:     Moritz Fischer <mdf@...nel.org>, Wu Hao <hao.wu@...el.com>,
        Xu Yilun <yilun.xu@...el.com>, Tom Rix <trix@...hat.com>
Cc:     Marco Pagani <marpagan@...hat.com>, linux-kernel@...r.kernel.org,
        linux-fpga@...r.kernel.org
Subject: [RFC PATCH v5 0/4] fpga: add initial KUnit tests for the subsystem

This patch set introduces initial KUnit test suites for the FPGA subsystem.

Tests can be run using:
[user@...alhost linux]$ ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/fpga/tests

v5:
- Removed most of the exported functions from fake components
- Moved all KUnit expectations/assertions to the main test module
- Removed standalone use case to simplify the code
- Removed instances counters from fake components (using device.id instead)
- Set header size in the .parse_header op
- improved bridge get_put_list test case

v4:
- Fix build error

v3:
- Calling fpga_bridges_put() between reconfigurations
- Functions for registering fake modules allocate and return context structs

v2:
- Restructured code into multiple suites to test components in isolation
- Reduced code duplication using init and exit methods
- Using a get_bridges() method to build the list of bridges just before programming
- Regions and Bridges are organized topologically
- Changed bitstream/bit to images
- Allocate images dynamically
- Renamed fpga-tests to fpga-test
- Simplified Kconfig
- Add license info to the fpga-test module

Marco Pagani (4):
  fpga: add fake FPGA manager
  fpga: add fake FPGA bridge
  fpga: add fake FPGA region
  fpga: add initial KUnit test suites

 drivers/fpga/Kconfig                  |   2 +
 drivers/fpga/Makefile                 |   3 +
 drivers/fpga/tests/.kunitconfig       |   5 +
 drivers/fpga/tests/Kconfig            |  11 +
 drivers/fpga/tests/Makefile           |   6 +
 drivers/fpga/tests/fake-fpga-bridge.c | 203 ++++++++++
 drivers/fpga/tests/fake-fpga-bridge.h |  40 ++
 drivers/fpga/tests/fake-fpga-mgr.c    | 271 +++++++++++++
 drivers/fpga/tests/fake-fpga-mgr.h    |  53 +++
 drivers/fpga/tests/fake-fpga-region.c | 245 ++++++++++++
 drivers/fpga/tests/fake-fpga-region.h |  40 ++
 drivers/fpga/tests/fpga-test.c        | 551 ++++++++++++++++++++++++++
 12 files changed, 1430 insertions(+)
 create mode 100644 drivers/fpga/tests/.kunitconfig
 create mode 100644 drivers/fpga/tests/Kconfig
 create mode 100644 drivers/fpga/tests/Makefile
 create mode 100644 drivers/fpga/tests/fake-fpga-bridge.c
 create mode 100644 drivers/fpga/tests/fake-fpga-bridge.h
 create mode 100644 drivers/fpga/tests/fake-fpga-mgr.c
 create mode 100644 drivers/fpga/tests/fake-fpga-mgr.h
 create mode 100644 drivers/fpga/tests/fake-fpga-region.c
 create mode 100644 drivers/fpga/tests/fake-fpga-region.h
 create mode 100644 drivers/fpga/tests/fpga-test.c


base-commit: ac9a78681b921877518763ba0e89202254349d1b
-- 
2.40.1