linux-kernel - [PATCH v7 0/4] fpga: add initial KUnit tests for the subsystem

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Message-Id: <20230616154405.220502-1-marpagan@redhat.com>
Date:   Fri, 16 Jun 2023 17:44:01 +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: [PATCH v7 0/4] fpga: add initial KUnit tests for the subsystem

This patch set introduces an initial set of KUnit test suites for the
core components of the FPGA subsystem.

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

v7:
- Dropped RFC prefix
- Add comments to explain fakes and helper functions
- Changed the implementation of the Bridge used in the Region suite

v6:
- Restructured the code into self-contained test modules
- Added tests for the basic behaviors of the components
- Improved programming tests for the FPGA Manager
- Fixed code/comments mismatch in the list of Bridges test case

v5:
- Removed most of the exported functions using shared buffers for stats
- 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 an initial KUnit suite for the FPGA Manager
  fpga: add an initial KUnit suite for the FPGA Bridge
  fpga: add an initial KUnit suite for the FPGA Region
  fpga: add configuration for the FPGA 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           |   5 +
 drivers/fpga/tests/fpga-bridge-test.c | 175 +++++++++++++++
 drivers/fpga/tests/fpga-mgr-test.c    | 302 ++++++++++++++++++++++++++
 drivers/fpga/tests/fpga-region-test.c | 211 ++++++++++++++++++
 8 files changed, 714 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/fpga-bridge-test.c
 create mode 100644 drivers/fpga/tests/fpga-mgr-test.c
 create mode 100644 drivers/fpga/tests/fpga-region-test.c


base-commit: 858fd168a95c5b9669aac8db6c14a9aeab446375
-- 
2.40.1