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linux/drivers/gpu/drm/tests/drm_format_test.c
Michał Winiarski 0173ce114d drm/format: Split into more granular test cases 
While we have multiple test cases, most of them check multiple
conditions, calling the function that is tested multiple times with
different arguments (with comments that indicate test case boundary).
This usually means that it can be easily converted into multiple test
cases.

Passing output:
============================================================
================= drm_format (18 subtests) =================
[PASSED] drm_format_block_width_invalid
[PASSED] drm_format_block_width_one_plane
[PASSED] drm_format_block_width_two_plane
[PASSED] drm_format_block_width_three_plane
[PASSED] drm_format_block_width_tiled
[PASSED] drm_format_block_height_invalid
[PASSED] drm_format_block_height_one_plane
[PASSED] drm_format_block_height_two_plane
[PASSED] drm_format_block_height_three_plane
[PASSED] drm_format_block_height_tiled
[PASSED] drm_format_min_pitch_invalid
[PASSED] drm_format_min_pitch_one_plane_8bpp
[PASSED] drm_format_min_pitch_one_plane_16bpp
[PASSED] drm_format_min_pitch_one_plane_24bpp
[PASSED] drm_format_min_pitch_one_plane_32bpp
[PASSED] drm_format_min_pitch_two_plane
[PASSED] drm_format_min_pitch_three_plane_8bpp
[PASSED] drm_format_min_pitch_tiled
=================== [PASSED] drm_format ====================
============================================================
Testing complete. Ran 18 tests: passed: 18

Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20220831215608.349269-2-michal.winiarski@intel.com
2022-09-09 15:54:23 -03:00

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// SPDX-License-Identifier: GPL-2.0
/*
* Test cases for the drm_format functions
*
* Copyright (c) 2022 Maíra Canal <mairacanal@riseup.net>
*/
#include <kunit/test.h>
#include <drm/drm_fourcc.h>
static void drm_format_block_width_invalid(struct kunit *test)
{
const struct drm_format_info *info = NULL;
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, -1), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 1), 0);
}
static void drm_format_block_width_one_plane(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_XRGB4444);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 0), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 1), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, -1), 0);
}
static void drm_format_block_width_two_plane(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_NV12);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 0), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 1), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 2), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, -1), 0);
}
static void drm_format_block_width_three_plane(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_YUV422);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 0), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 1), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 2), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 3), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, -1), 0);
}
static void drm_format_block_width_tiled(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_X0L0);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 0), 2);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, 1), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_block_width(info, -1), 0);
}
static void drm_format_block_height_invalid(struct kunit *test)
{
const struct drm_format_info *info = NULL;
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, -1), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 1), 0);
}
static void drm_format_block_height_one_plane(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_XRGB4444);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 0), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, -1), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 1), 0);
}
static void drm_format_block_height_two_plane(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_NV12);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 0), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 1), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 2), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, -1), 0);
}
static void drm_format_block_height_three_plane(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_YUV422);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 0), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 1), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 2), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 3), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, -1), 0);
}
static void drm_format_block_height_tiled(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_X0L0);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 0), 2);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, 1), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_block_height(info, -1), 0);
}
static void drm_format_min_pitch_invalid(struct kunit *test)
{
const struct drm_format_info *info = NULL;
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
}
static void drm_format_min_pitch_one_plane_8bpp(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_RGB332);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 2), 2);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 640), 640);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1024), 1024);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1920), 1920);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 4096), 4096);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 671), 671);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, UINT_MAX),
(uint64_t)UINT_MAX);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, (UINT_MAX - 1)),
(uint64_t)(UINT_MAX - 1));
}
static void drm_format_min_pitch_one_plane_16bpp(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_XRGB4444);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1), 2);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 2), 4);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 640), 1280);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1024), 2048);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1920), 3840);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 4096), 8192);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 671), 1342);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, UINT_MAX),
(uint64_t)UINT_MAX * 2);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, (UINT_MAX - 1)),
(uint64_t)(UINT_MAX - 1) * 2);
}
static void drm_format_min_pitch_one_plane_24bpp(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_RGB888);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1), 3);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 2), 6);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 640), 1920);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1024), 3072);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1920), 5760);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 4096), 12288);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 671), 2013);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, UINT_MAX),
(uint64_t)UINT_MAX * 3);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, UINT_MAX - 1),
(uint64_t)(UINT_MAX - 1) * 3);
}
static void drm_format_min_pitch_one_plane_32bpp(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_ABGR8888);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1), 4);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 2), 8);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 640), 2560);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1024), 4096);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1920), 7680);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 4096), 16384);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 671), 2684);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, UINT_MAX),
(uint64_t)UINT_MAX * 4);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, UINT_MAX - 1),
(uint64_t)(UINT_MAX - 1) * 4);
}
static void drm_format_min_pitch_two_plane(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_NV12);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 2, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 1), 2);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 2), 2);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 1), 2);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 640), 640);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 320), 640);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1024), 1024);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 512), 1024);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1920), 1920);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 960), 1920);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 4096), 4096);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 2048), 4096);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 671), 671);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 336), 672);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, UINT_MAX),
(uint64_t)UINT_MAX);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, UINT_MAX / 2 + 1),
(uint64_t)UINT_MAX + 1);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, (UINT_MAX - 1)),
(uint64_t)(UINT_MAX - 1));
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, (UINT_MAX - 1) / 2),
(uint64_t)(UINT_MAX - 1));
}
static void drm_format_min_pitch_three_plane_8bpp(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_YUV422);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 2, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 3, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 1), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 2, 1), 1);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 2), 2);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 2), 2);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 2, 2), 2);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 640), 640);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 320), 320);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 2, 320), 320);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1024), 1024);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 512), 512);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 2, 512), 512);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1920), 1920);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 960), 960);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 2, 960), 960);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 4096), 4096);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 2048), 2048);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 2, 2048), 2048);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 671), 671);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 336), 336);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 2, 336), 336);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, UINT_MAX),
(uint64_t)UINT_MAX);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, UINT_MAX / 2 + 1),
(uint64_t)UINT_MAX / 2 + 1);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 2, UINT_MAX / 2 + 1),
(uint64_t)UINT_MAX / 2 + 1);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, (UINT_MAX - 1) / 2),
(uint64_t)(UINT_MAX - 1) / 2);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, (UINT_MAX - 1) / 2),
(uint64_t)(UINT_MAX - 1) / 2);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 2, (UINT_MAX - 1) / 2),
(uint64_t)(UINT_MAX - 1) / 2);
}
static void drm_format_min_pitch_tiled(struct kunit *test)
{
const struct drm_format_info *info = drm_format_info(DRM_FORMAT_X0L2);
KUNIT_ASSERT_NOT_NULL(test, info);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, -1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 1, 0), 0);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1), 2);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 2), 4);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 640), 1280);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1024), 2048);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 1920), 3840);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 4096), 8192);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, 671), 1342);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, UINT_MAX),
(uint64_t)UINT_MAX * 2);
KUNIT_EXPECT_EQ(test, drm_format_info_min_pitch(info, 0, UINT_MAX - 1),
(uint64_t)(UINT_MAX - 1) * 2);
}
static struct kunit_case drm_format_tests[] = {
KUNIT_CASE(drm_format_block_width_invalid),
KUNIT_CASE(drm_format_block_width_one_plane),
KUNIT_CASE(drm_format_block_width_two_plane),
KUNIT_CASE(drm_format_block_width_three_plane),
KUNIT_CASE(drm_format_block_width_tiled),
KUNIT_CASE(drm_format_block_height_invalid),
KUNIT_CASE(drm_format_block_height_one_plane),
KUNIT_CASE(drm_format_block_height_two_plane),
KUNIT_CASE(drm_format_block_height_three_plane),
KUNIT_CASE(drm_format_block_height_tiled),
KUNIT_CASE(drm_format_min_pitch_invalid),
KUNIT_CASE(drm_format_min_pitch_one_plane_8bpp),
KUNIT_CASE(drm_format_min_pitch_one_plane_16bpp),
KUNIT_CASE(drm_format_min_pitch_one_plane_24bpp),
KUNIT_CASE(drm_format_min_pitch_one_plane_32bpp),
KUNIT_CASE(drm_format_min_pitch_two_plane),
KUNIT_CASE(drm_format_min_pitch_three_plane_8bpp),
KUNIT_CASE(drm_format_min_pitch_tiled),
{}
};
static struct kunit_suite drm_format_test_suite = {
.name = "drm_format",
.test_cases = drm_format_tests,
};
kunit_test_suite(drm_format_test_suite);
MODULE_LICENSE("GPL");
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