diff mbox series

[RFC,01/10] drm: test-drm_cmdline_parser: Convert to KUnit

Message ID 20220117232259.180459-2-michal.winiarski@intel.com
State New
Headers show
Series drm: selftests: Convert to KUnit | expand

Commit Message

Michał Winiarski Jan. 17, 2022, 11:22 p.m. UTC 
One-to-one conversion, no functional changes.
Negative tests were merged into single parameterized test case.

Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
---
 drivers/gpu/drm/Kconfig                       |   12 +
 drivers/gpu/drm/Makefile                      |    2 +-
 drivers/gpu/drm/selftests/Makefile            |    8 +-
 .../gpu/drm/selftests/drm_cmdline_selftests.h |   68 -
 .../drm/selftests/test-drm_cmdline_parser.c   | 1680 ++++++++---------
 5 files changed, 802 insertions(+), 968 deletions(-)
 delete mode 100644 drivers/gpu/drm/selftests/drm_cmdline_selftests.h
diff mbox series

Patch

diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index b1f22e457fd0..21e329f32997 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -80,6 +80,18 @@  config DRM_DEBUG_SELFTEST
 
 	  If in doubt, say "N".
 
+config DRM_KUNIT_TEST
+	bool "DRM tests" if !KUNIT_ALL_TESTS
+	depends on DRM=y && KUNIT=y
+	default KUNIT_ALL_TESTS
+	help
+	  Enables unit tests for DRM. Only useful for kernel devs running KUnit.
+
+	  For more information on KUnit and unit tests in general please refer
+	  to the KUnit documentation in Documentation/dev-tools/kunit/.
+
+	  If unsure, say N.
+
 config DRM_KMS_HELPER
 	tristate
 	depends on DRM
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 301a44dc18e3..550800e81836 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -65,7 +65,7 @@  drm_kms_helper-$(CONFIG_DRM_DP_AUX_CHARDEV) += drm_dp_aux_dev.o
 drm_kms_helper-$(CONFIG_DRM_DP_CEC) += drm_dp_cec.o
 
 obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o
-obj-$(CONFIG_DRM_DEBUG_SELFTEST) += selftests/
+obj-y += selftests/
 
 obj-$(CONFIG_DRM)	+= drm.o
 obj-$(CONFIG_DRM_MIPI_DBI) += drm_mipi_dbi.o
diff --git a/drivers/gpu/drm/selftests/Makefile b/drivers/gpu/drm/selftests/Makefile
index 0856e4b12f70..6411c9a957b3 100644
--- a/drivers/gpu/drm/selftests/Makefile
+++ b/drivers/gpu/drm/selftests/Makefile
@@ -1,7 +1,11 @@ 
 # SPDX-License-Identifier: GPL-2.0-only
-test-drm_modeset-y := test-drm_modeset_common.o test-drm_plane_helper.o \
+test-drm_modeset-$(CONFIG_DRM_DEBUG_SELFTEST) := \
+		      test-drm_modeset_common.o test-drm_plane_helper.o \
                       test-drm_format.o test-drm_framebuffer.o \
 		      test-drm_damage_helper.o test-drm_dp_mst_helper.o \
 		      test-drm_rect.o
 
-obj-$(CONFIG_DRM_DEBUG_SELFTEST) += test-drm_mm.o test-drm_modeset.o test-drm_cmdline_parser.o
+obj-$(CONFIG_DRM_DEBUG_SELFTEST) += test-drm_mm.o test-drm_modeset.o
+
+obj-$(CONFIG_DRM_KUNIT_TEST) := \
+	test-drm_cmdline_parser.o
diff --git a/drivers/gpu/drm/selftests/drm_cmdline_selftests.h b/drivers/gpu/drm/selftests/drm_cmdline_selftests.h
deleted file mode 100644
index 29e367db6118..000000000000
--- a/drivers/gpu/drm/selftests/drm_cmdline_selftests.h
+++ /dev/null
@@ -1,68 +0,0 @@ 
-/* SPDX-License-Identifier: GPL-2.0 */
-/* List each unit test as selftest(function)
- *
- * The name is used as both an enum and expanded as igt__name to create
- * a module parameter. It must be unique and legal for a C identifier.
- *
- * Tests are executed in order by igt/drm_mm
- */
-
-#define cmdline_test(test)	selftest(test, test)
-
-cmdline_test(drm_cmdline_test_force_d_only)
-cmdline_test(drm_cmdline_test_force_D_only_dvi)
-cmdline_test(drm_cmdline_test_force_D_only_hdmi)
-cmdline_test(drm_cmdline_test_force_D_only_not_digital)
-cmdline_test(drm_cmdline_test_force_e_only)
-cmdline_test(drm_cmdline_test_margin_only)
-cmdline_test(drm_cmdline_test_interlace_only)
-cmdline_test(drm_cmdline_test_res)
-cmdline_test(drm_cmdline_test_res_missing_x)
-cmdline_test(drm_cmdline_test_res_missing_y)
-cmdline_test(drm_cmdline_test_res_bad_y)
-cmdline_test(drm_cmdline_test_res_missing_y_bpp)
-cmdline_test(drm_cmdline_test_res_vesa)
-cmdline_test(drm_cmdline_test_res_vesa_rblank)
-cmdline_test(drm_cmdline_test_res_rblank)
-cmdline_test(drm_cmdline_test_res_bpp)
-cmdline_test(drm_cmdline_test_res_bad_bpp)
-cmdline_test(drm_cmdline_test_res_refresh)
-cmdline_test(drm_cmdline_test_res_bad_refresh)
-cmdline_test(drm_cmdline_test_res_bpp_refresh)
-cmdline_test(drm_cmdline_test_res_bpp_refresh_interlaced)
-cmdline_test(drm_cmdline_test_res_bpp_refresh_margins)
-cmdline_test(drm_cmdline_test_res_bpp_refresh_force_off)
-cmdline_test(drm_cmdline_test_res_bpp_refresh_force_on_off)
-cmdline_test(drm_cmdline_test_res_bpp_refresh_force_on)
-cmdline_test(drm_cmdline_test_res_bpp_refresh_force_on_analog)
-cmdline_test(drm_cmdline_test_res_bpp_refresh_force_on_digital)
-cmdline_test(drm_cmdline_test_res_bpp_refresh_interlaced_margins_force_on)
-cmdline_test(drm_cmdline_test_res_margins_force_on)
-cmdline_test(drm_cmdline_test_res_vesa_margins)
-cmdline_test(drm_cmdline_test_res_invalid_mode)
-cmdline_test(drm_cmdline_test_res_bpp_wrong_place_mode)
-cmdline_test(drm_cmdline_test_name)
-cmdline_test(drm_cmdline_test_name_bpp)
-cmdline_test(drm_cmdline_test_name_refresh)
-cmdline_test(drm_cmdline_test_name_bpp_refresh)
-cmdline_test(drm_cmdline_test_name_refresh_wrong_mode)
-cmdline_test(drm_cmdline_test_name_refresh_invalid_mode)
-cmdline_test(drm_cmdline_test_name_option)
-cmdline_test(drm_cmdline_test_name_bpp_option)
-cmdline_test(drm_cmdline_test_rotate_0)
-cmdline_test(drm_cmdline_test_rotate_90)
-cmdline_test(drm_cmdline_test_rotate_180)
-cmdline_test(drm_cmdline_test_rotate_270)
-cmdline_test(drm_cmdline_test_rotate_multiple)
-cmdline_test(drm_cmdline_test_rotate_invalid_val)
-cmdline_test(drm_cmdline_test_rotate_truncated)
-cmdline_test(drm_cmdline_test_hmirror)
-cmdline_test(drm_cmdline_test_vmirror)
-cmdline_test(drm_cmdline_test_margin_options)
-cmdline_test(drm_cmdline_test_multiple_options)
-cmdline_test(drm_cmdline_test_invalid_option)
-cmdline_test(drm_cmdline_test_bpp_extra_and_option)
-cmdline_test(drm_cmdline_test_extra_and_option)
-cmdline_test(drm_cmdline_test_freestanding_options)
-cmdline_test(drm_cmdline_test_freestanding_force_e_and_options)
-cmdline_test(drm_cmdline_test_panel_orientation)
diff --git a/drivers/gpu/drm/selftests/test-drm_cmdline_parser.c b/drivers/gpu/drm/selftests/test-drm_cmdline_parser.c
index d96cd890def6..ffe5a483320a 100644
--- a/drivers/gpu/drm/selftests/test-drm_cmdline_parser.c
+++ b/drivers/gpu/drm/selftests/test-drm_cmdline_parser.c
@@ -3,1139 +3,1025 @@ 
  * Copyright (c) 2019 Bootlin
  */
 
-#define pr_fmt(fmt) "drm_cmdline: " fmt
-
-#include <linux/kernel.h>
-#include <linux/module.h>
+#include <kunit/test.h>
 
 #include <drm/drm_connector.h>
 #include <drm/drm_modes.h>
 
-#define TESTS "drm_cmdline_selftests.h"
-#include "drm_selftest.h"
-#include "test-drm_modeset_common.h"
-
 static const struct drm_connector no_connector = {};
 
-static int drm_cmdline_test_force_e_only(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("e",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(mode.specified);
-	FAIL_ON(mode.refresh_specified);
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_ON);
-
-	return 0;
-}
-
-static int drm_cmdline_test_force_D_only_not_digital(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("D",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(mode.specified);
-	FAIL_ON(mode.refresh_specified);
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_ON);
-
-	return 0;
-}
-
-static const struct drm_connector connector_hdmi = {
-	.connector_type	= DRM_MODE_CONNECTOR_HDMIB,
-};
-
-static int drm_cmdline_test_force_D_only_hdmi(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("D",
-							   &connector_hdmi,
-							   &mode));
-	FAIL_ON(mode.specified);
-	FAIL_ON(mode.refresh_specified);
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_ON_DIGITAL);
-
-	return 0;
-}
-
-static const struct drm_connector connector_dvi = {
-	.connector_type	= DRM_MODE_CONNECTOR_DVII,
-};
-
-static int drm_cmdline_test_force_D_only_dvi(void *ignored)
+static void drm_cmdline_test_force_e_only(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("D",
-							   &connector_dvi,
-							   &mode));
-	FAIL_ON(mode.specified);
-	FAIL_ON(mode.refresh_specified);
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_ON_DIGITAL);
-
-	return 0;
-}
-
-static int drm_cmdline_test_force_d_only(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("d",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(mode.specified);
-	FAIL_ON(mode.refresh_specified);
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_OFF);
-
-	return 0;
+	const char *cmdline = "e";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_FALSE(test, mode.specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static int drm_cmdline_test_margin_only(void *ignored)
+static void drm_cmdline_test_force_D_only_not_digital(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(drm_mode_parse_command_line_for_connector("m",
-							  &no_connector,
-							  &mode));
-
-	return 0;
-}
-
-static int drm_cmdline_test_interlace_only(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(drm_mode_parse_command_line_for_connector("i",
-							  &no_connector,
-							  &mode));
-
-	return 0;
-}
-
-static int drm_cmdline_test_res(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-
-	FAIL_ON(mode.refresh_specified);
-
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
-
-	return 0;
+	const char *cmdline = "D";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_FALSE(test, mode.specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static int drm_cmdline_test_res_missing_x(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
 
-	FAIL_ON(drm_mode_parse_command_line_for_connector("x480",
-							  &no_connector,
-							  &mode));
-
-	return 0;
-}
-
-static int drm_cmdline_test_res_missing_y(void *ignored)
+static void drm_cmdline_test_force_D_only_hdmi(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(drm_mode_parse_command_line_for_connector("1024x",
-							  &no_connector,
-							  &mode));
-
-	return 0;
+	const struct drm_connector connector_hdmi = {
+		.connector_type	= DRM_MODE_CONNECTOR_HDMIB,
+	};
+	const char *cmdline = "D";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &connector_hdmi,
+									  &mode));
+	KUNIT_EXPECT_FALSE(test, mode.specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON_DIGITAL);
 }
 
-static int drm_cmdline_test_res_bad_y(void *ignored)
+static void drm_cmdline_test_force_D_only_dvi(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(drm_mode_parse_command_line_for_connector("1024xtest",
-							  &no_connector,
-							  &mode));
-
-	return 0;
+	const struct drm_connector connector_dvi = {
+		.connector_type = DRM_MODE_CONNECTOR_DVII,
+	};
+	const char *cmdline = "D";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &connector_dvi,
+									  &mode));
+	KUNIT_EXPECT_FALSE(test, mode.specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON_DIGITAL);
 }
 
-static int drm_cmdline_test_res_missing_y_bpp(void *ignored)
+static void drm_cmdline_test_force_d_only(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(drm_mode_parse_command_line_for_connector("1024x-24",
-							  &no_connector,
-							  &mode));
-
-	return 0;
+	const char *cmdline = "d";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_FALSE(test, mode.specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_OFF);
 }
 
-static int drm_cmdline_test_res_vesa(void *ignored)
+static void drm_cmdline_test_res(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480";
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480M",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
 
-	FAIL_ON(mode.refresh_specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-	FAIL_ON(mode.bpp_specified);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 
-	FAIL_ON(mode.rb);
-	FAIL_ON(!mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
-
-	return 0;
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_res_vesa_rblank(void *ignored)
+static void drm_cmdline_test_res_vesa(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480M";
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480MR",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-
-	FAIL_ON(mode.refresh_specified);
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
 
-	FAIL_ON(mode.bpp_specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-	FAIL_ON(!mode.rb);
-	FAIL_ON(!mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 
-	return 0;
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_TRUE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_res_rblank(void *ignored)
+static void drm_cmdline_test_res_vesa_rblank(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480MR";
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480R",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
 
-	FAIL_ON(mode.refresh_specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-	FAIL_ON(mode.bpp_specified);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 
-	FAIL_ON(!mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
-
-	return 0;
+	KUNIT_EXPECT_TRUE(test, mode.rb);
+	KUNIT_EXPECT_TRUE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_res_bpp(void *ignored)
+static void drm_cmdline_test_res_rblank(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480R";
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480-24",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-
-	FAIL_ON(mode.refresh_specified);
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
 
-	FAIL_ON(!mode.bpp_specified);
-	FAIL_ON(mode.bpp != 24);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 
-	return 0;
+	KUNIT_EXPECT_TRUE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_res_bad_bpp(void *ignored)
+static void drm_cmdline_test_res_bpp(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480-24";
 
-	FAIL_ON(drm_mode_parse_command_line_for_connector("720x480-test",
-							  &no_connector,
-							  &mode));
-
-	return 0;
-}
-
-static int drm_cmdline_test_res_refresh(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480@60",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-
-	FAIL_ON(!mode.refresh_specified);
-	FAIL_ON(mode.refresh != 60);
-
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
 
-	return 0;
-}
-
-static int drm_cmdline_test_res_bad_refresh(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-	FAIL_ON(drm_mode_parse_command_line_for_connector("720x480@refresh",
-							  &no_connector,
-							  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.bpp_specified);
+	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
 
-	return 0;
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_res_bpp_refresh(void *ignored)
+static void drm_cmdline_test_res_refresh(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480@60";
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480-24@60",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
 
-	FAIL_ON(!mode.refresh_specified);
-	FAIL_ON(mode.refresh != 60);
+	KUNIT_EXPECT_TRUE(test, mode.refresh_specified);
+	KUNIT_EXPECT_EQ(test, mode.refresh, 60);
 
-	FAIL_ON(!mode.bpp_specified);
-	FAIL_ON(mode.bpp != 24);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
-
-	return 0;
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_res_bpp_refresh_interlaced(void *ignored)
+static void drm_cmdline_test_res_bpp_refresh(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480-24@60i",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-
-	FAIL_ON(!mode.refresh_specified);
-	FAIL_ON(mode.refresh != 60);
-
-	FAIL_ON(!mode.bpp_specified);
-	FAIL_ON(mode.bpp != 24);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(!mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
-
-	return 0;
+	const char *cmdline = "720x480-24@60";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+
+	KUNIT_EXPECT_TRUE(test, mode.refresh_specified);
+	KUNIT_EXPECT_EQ(test, mode.refresh, 60);
+
+	KUNIT_EXPECT_TRUE(test, mode.bpp_specified);
+	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_res_bpp_refresh_margins(void *ignored)
+static void drm_cmdline_test_res_bpp_refresh_interlaced(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480-24@60m",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-
-	FAIL_ON(!mode.refresh_specified);
-	FAIL_ON(mode.refresh != 60);
-
-	FAIL_ON(!mode.bpp_specified);
-	FAIL_ON(mode.bpp != 24);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(!mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
-
-	return 0;
+	const char *cmdline = "720x480-24@60i";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+
+	KUNIT_EXPECT_TRUE(test, mode.refresh_specified);
+	KUNIT_EXPECT_EQ(test, mode.refresh, 60);
+
+	KUNIT_EXPECT_TRUE(test, mode.bpp_specified);
+	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_TRUE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_res_bpp_refresh_force_off(void *ignored)
+static void drm_cmdline_test_res_bpp_refresh_margins(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480-24@60d",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-
-	FAIL_ON(!mode.refresh_specified);
-	FAIL_ON(mode.refresh != 60);
-
-	FAIL_ON(!mode.bpp_specified);
-	FAIL_ON(mode.bpp != 24);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_OFF);
-
-	return 0;
+	const char *cmdline = "720x480-24@60m";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+
+	KUNIT_EXPECT_TRUE(test, mode.refresh_specified);
+	KUNIT_EXPECT_EQ(test, mode.refresh, 60);
+
+	KUNIT_EXPECT_TRUE(test, mode.bpp_specified);
+	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_TRUE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_res_bpp_refresh_force_on_off(void *ignored)
+static void drm_cmdline_test_res_bpp_refresh_force_off(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(drm_mode_parse_command_line_for_connector("720x480-24@60de",
-							  &no_connector,
-							  &mode));
-
-	return 0;
+	const char *cmdline = "720x480-24@60d";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+
+	KUNIT_EXPECT_TRUE(test, mode.refresh_specified);
+	KUNIT_EXPECT_EQ(test, mode.refresh, 60);
+
+	KUNIT_EXPECT_TRUE(test, mode.bpp_specified);
+	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_OFF);
 }
 
-static int drm_cmdline_test_res_bpp_refresh_force_on(void *ignored)
+static void drm_cmdline_test_res_bpp_refresh_force_on(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480-24@60e",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-
-	FAIL_ON(!mode.refresh_specified);
-	FAIL_ON(mode.refresh != 60);
-
-	FAIL_ON(!mode.bpp_specified);
-	FAIL_ON(mode.bpp != 24);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_ON);
-
-	return 0;
+	const char *cmdline = "720x480-24@60e";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+
+	KUNIT_EXPECT_TRUE(test, mode.refresh_specified);
+	KUNIT_EXPECT_EQ(test, mode.refresh, 60);
+
+	KUNIT_EXPECT_TRUE(test, mode.bpp_specified);
+	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static int drm_cmdline_test_res_bpp_refresh_force_on_analog(void *ignored)
+static void drm_cmdline_test_res_bpp_refresh_force_on_analog(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480-24@60D",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-
-	FAIL_ON(!mode.refresh_specified);
-	FAIL_ON(mode.refresh != 60);
-
-	FAIL_ON(!mode.bpp_specified);
-	FAIL_ON(mode.bpp != 24);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_ON);
-
-	return 0;
+	const char *cmdline = "720x480-24@60D";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+
+	KUNIT_EXPECT_TRUE(test, mode.refresh_specified);
+	KUNIT_EXPECT_EQ(test, mode.refresh, 60);
+
+	KUNIT_EXPECT_TRUE(test, mode.bpp_specified);
+	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static int drm_cmdline_test_res_bpp_refresh_force_on_digital(void *ignored)
+static void drm_cmdline_test_res_bpp_refresh_force_on_digital(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-	static const struct drm_connector connector = {
+	const struct drm_connector connector = {
 		.connector_type = DRM_MODE_CONNECTOR_DVII,
 	};
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480-24@60D",
-							   &connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-
-	FAIL_ON(!mode.refresh_specified);
-	FAIL_ON(mode.refresh != 60);
-
-	FAIL_ON(!mode.bpp_specified);
-	FAIL_ON(mode.bpp != 24);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_ON_DIGITAL);
-
-	return 0;
+	const char *cmdline = "720x480-24@60D";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+
+	KUNIT_EXPECT_TRUE(test, mode.refresh_specified);
+	KUNIT_EXPECT_EQ(test, mode.refresh, 60);
+
+	KUNIT_EXPECT_TRUE(test, mode.bpp_specified);
+	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON_DIGITAL);
 }
 
-static int drm_cmdline_test_res_bpp_refresh_interlaced_margins_force_on(void *ignored)
+static void drm_cmdline_test_res_bpp_refresh_interlaced_margins_force_on(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480-24@60ime",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-
-	FAIL_ON(!mode.refresh_specified);
-	FAIL_ON(mode.refresh != 60);
-
-	FAIL_ON(!mode.bpp_specified);
-	FAIL_ON(mode.bpp != 24);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(!mode.interlace);
-	FAIL_ON(!mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_ON);
-
-	return 0;
+	const char *cmdline = "720x480-24@60ime";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+
+	KUNIT_EXPECT_TRUE(test, mode.refresh_specified);
+	KUNIT_EXPECT_EQ(test, mode.refresh, 60);
+
+	KUNIT_EXPECT_TRUE(test, mode.bpp_specified);
+	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_TRUE(test, mode.interlace);
+	KUNIT_EXPECT_TRUE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static int drm_cmdline_test_res_margins_force_on(void *ignored)
+static void drm_cmdline_test_res_margins_force_on(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480me";
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480me",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-
-	FAIL_ON(mode.refresh_specified);
-
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(!mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_ON);
-
-	return 0;
-}
-
-static int drm_cmdline_test_res_vesa_margins(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480Mm",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-
-	FAIL_ON(mode.refresh_specified);
-
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(!mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(!mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
 
-	return 0;
-}
-
-static int drm_cmdline_test_res_invalid_mode(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-	FAIL_ON(drm_mode_parse_command_line_for_connector("720x480f",
-							  &no_connector,
-							  &mode));
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 
-	return 0;
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_TRUE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static int drm_cmdline_test_res_bpp_wrong_place_mode(void *ignored)
+static void drm_cmdline_test_res_vesa_margins(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480Mm";
 
-	FAIL_ON(drm_mode_parse_command_line_for_connector("720x480e-24",
-							  &no_connector,
-							  &mode));
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
 
-	return 0;
-}
-
-static int drm_cmdline_test_name(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("NTSC",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(strcmp(mode.name, "NTSC"));
-	FAIL_ON(mode.refresh_specified);
-	FAIL_ON(mode.bpp_specified);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 
-	return 0;
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_TRUE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_TRUE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_name_bpp(void *ignored)
+static void drm_cmdline_test_name(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("NTSC-24",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(strcmp(mode.name, "NTSC"));
-
-	FAIL_ON(mode.refresh_specified);
-
-	FAIL_ON(!mode.bpp_specified);
-	FAIL_ON(mode.bpp != 24);
-
-	return 0;
+	const char *cmdline = "NTSC";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_STREQ(test, mode.name, "NTSC");
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 }
 
-static int drm_cmdline_test_name_bpp_refresh(void *ignored)
+static void drm_cmdline_test_name_bpp(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "NTSC-24";
 
-	FAIL_ON(drm_mode_parse_command_line_for_connector("NTSC-24@60",
-							  &no_connector,
-							  &mode));
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_STREQ(test, mode.name, "NTSC");
 
-	return 0;
-}
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-static int drm_cmdline_test_name_refresh(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(drm_mode_parse_command_line_for_connector("NTSC@60",
-							  &no_connector,
-							  &mode));
-
-	return 0;
+	KUNIT_EXPECT_TRUE(test, mode.bpp_specified);
+	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
 }
 
-static int drm_cmdline_test_name_refresh_wrong_mode(void *ignored)
+static void drm_cmdline_test_name_option(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(drm_mode_parse_command_line_for_connector("NTSC@60m",
-							  &no_connector,
-							  &mode));
-
-	return 0;
+	const char *cmdline = "NTSC,rotate=180";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_STREQ(test, mode.name, "NTSC");
+	KUNIT_EXPECT_EQ(test, mode.rotation_reflection, DRM_MODE_ROTATE_180);
 }
 
-static int drm_cmdline_test_name_refresh_invalid_mode(void *ignored)
+static void drm_cmdline_test_name_bpp_option(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(drm_mode_parse_command_line_for_connector("NTSC@60f",
-							  &no_connector,
-							  &mode));
-
-	return 0;
+	const char *cmdline = "NTSC-24,rotate=180";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_STREQ(test, mode.name, "NTSC");
+	KUNIT_EXPECT_EQ(test, mode.rotation_reflection, DRM_MODE_ROTATE_180);
+	KUNIT_EXPECT_TRUE(test, mode.bpp_specified);
+	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
 }
 
-static int drm_cmdline_test_name_option(void *ignored)
+static void drm_cmdline_test_rotate_0(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480,rotate=0";
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("NTSC,rotate=180",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(strcmp(mode.name, "NTSC"));
-	FAIL_ON(mode.rotation_reflection != DRM_MODE_ROTATE_180);
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+	KUNIT_EXPECT_EQ(test, mode.rotation_reflection, DRM_MODE_ROTATE_0);
 
-	return 0;
-}
-
-static int drm_cmdline_test_name_bpp_option(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("NTSC-24,rotate=180",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(strcmp(mode.name, "NTSC"));
-	FAIL_ON(mode.rotation_reflection != DRM_MODE_ROTATE_180);
-	FAIL_ON(!mode.bpp_specified);
-	FAIL_ON(mode.bpp != 24);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 
-	return 0;
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_rotate_0(void *ignored)
+static void drm_cmdline_test_rotate_90(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480,rotate=90";
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480,rotate=0",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-	FAIL_ON(mode.rotation_reflection != DRM_MODE_ROTATE_0);
-
-	FAIL_ON(mode.refresh_specified);
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+	KUNIT_EXPECT_EQ(test, mode.rotation_reflection, DRM_MODE_ROTATE_90);
 
-	FAIL_ON(mode.bpp_specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 
-	return 0;
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_rotate_90(void *ignored)
+static void drm_cmdline_test_rotate_180(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480,rotate=180";
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480,rotate=90",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-	FAIL_ON(mode.rotation_reflection != DRM_MODE_ROTATE_90);
-
-	FAIL_ON(mode.refresh_specified);
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+	KUNIT_EXPECT_EQ(test, mode.rotation_reflection, DRM_MODE_ROTATE_180);
 
-	FAIL_ON(mode.bpp_specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 
-	return 0;
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_rotate_180(void *ignored)
+static void drm_cmdline_test_rotate_270(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480,rotate=270";
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480,rotate=180",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-	FAIL_ON(mode.rotation_reflection != DRM_MODE_ROTATE_180);
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+	KUNIT_EXPECT_EQ(test, mode.rotation_reflection, DRM_MODE_ROTATE_270);
 
-	FAIL_ON(mode.refresh_specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-	FAIL_ON(mode.bpp_specified);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
-
-	return 0;
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_rotate_270(void *ignored)
+static void drm_cmdline_test_hmirror(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480,reflect_x";
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480,rotate=270",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-	FAIL_ON(mode.rotation_reflection != DRM_MODE_ROTATE_270);
-
-	FAIL_ON(mode.refresh_specified);
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+	KUNIT_EXPECT_EQ(test, mode.rotation_reflection, (DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_X));
 
-	FAIL_ON(mode.bpp_specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 
-	return 0;
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_rotate_multiple(void *ignored)
+static void drm_cmdline_test_vmirror(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480,reflect_y";
 
-	FAIL_ON(drm_mode_parse_command_line_for_connector("720x480,rotate=0,rotate=90",
-							  &no_connector,
-							  &mode));
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+	KUNIT_EXPECT_EQ(test, mode.rotation_reflection, (DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_Y));
 
-	return 0;
-}
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-static int drm_cmdline_test_rotate_invalid_val(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(drm_mode_parse_command_line_for_connector("720x480,rotate=42",
-							  &no_connector,
-							  &mode));
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 
-	return 0;
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_rotate_truncated(void *ignored)
+static void drm_cmdline_test_margin_options(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(drm_mode_parse_command_line_for_connector("720x480,rotate=",
-							  &no_connector,
-							  &mode));
-
-	return 0;
+	const char *cmdline =
+		"720x480,margin_right=14,margin_left=24,margin_bottom=36,margin_top=42";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+	KUNIT_EXPECT_EQ(test, mode.tv_margins.right, 14);
+	KUNIT_EXPECT_EQ(test, mode.tv_margins.left, 24);
+	KUNIT_EXPECT_EQ(test, mode.tv_margins.bottom, 36);
+	KUNIT_EXPECT_EQ(test, mode.tv_margins.top, 42);
+
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
+
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_hmirror(void *ignored)
+static void drm_cmdline_test_multiple_options(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
+	const char *cmdline = "720x480,rotate=270,reflect_x";
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480,reflect_x",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-	FAIL_ON(mode.rotation_reflection != (DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_X));
-
-	FAIL_ON(mode.refresh_specified);
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+	KUNIT_EXPECT_EQ(test, mode.rotation_reflection, (DRM_MODE_ROTATE_270 | DRM_MODE_REFLECT_X));
 
-	FAIL_ON(mode.bpp_specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
 
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
 
-	return 0;
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_vmirror(void *ignored)
+static void drm_cmdline_test_bpp_extra_and_option(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480,reflect_y",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-	FAIL_ON(mode.rotation_reflection != (DRM_MODE_ROTATE_0 | DRM_MODE_REFLECT_Y));
-
-	FAIL_ON(mode.refresh_specified);
-
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
-
-	return 0;
+	const char *cmdline = "720x480-24e,rotate=180";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+	KUNIT_EXPECT_EQ(test, mode.rotation_reflection, DRM_MODE_ROTATE_180);
+
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
+
+	KUNIT_EXPECT_TRUE(test, mode.bpp_specified);
+	KUNIT_EXPECT_EQ(test, mode.bpp, 24);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static int drm_cmdline_test_margin_options(void *ignored)
+static void drm_cmdline_test_extra_and_option(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480,margin_right=14,margin_left=24,margin_bottom=36,margin_top=42",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-	FAIL_ON(mode.tv_margins.right != 14);
-	FAIL_ON(mode.tv_margins.left != 24);
-	FAIL_ON(mode.tv_margins.bottom != 36);
-	FAIL_ON(mode.tv_margins.top != 42);
-
-	FAIL_ON(mode.refresh_specified);
-
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
-
-	return 0;
+	const char *cmdline = "720x480e,rotate=180";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_TRUE(test, mode.specified);
+	KUNIT_EXPECT_EQ(test, mode.xres, 720);
+	KUNIT_EXPECT_EQ(test, mode.yres, 480);
+	KUNIT_EXPECT_EQ(test, mode.rotation_reflection, DRM_MODE_ROTATE_180);
+
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static int drm_cmdline_test_multiple_options(void *ignored)
+static void drm_cmdline_test_freestanding_options(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480,rotate=270,reflect_x",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-	FAIL_ON(mode.rotation_reflection != (DRM_MODE_ROTATE_270 | DRM_MODE_REFLECT_X));
-
-	FAIL_ON(mode.refresh_specified);
-
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
-
-	return 0;
+	const char *cmdline = "margin_right=14,margin_left=24,margin_bottom=36,margin_top=42";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_FALSE(test, mode.specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
+
+	KUNIT_EXPECT_EQ(test, mode.tv_margins.right, 14);
+	KUNIT_EXPECT_EQ(test, mode.tv_margins.left, 24);
+	KUNIT_EXPECT_EQ(test, mode.tv_margins.bottom, 36);
+	KUNIT_EXPECT_EQ(test, mode.tv_margins.top, 42);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_invalid_option(void *ignored)
+static void drm_cmdline_test_freestanding_force_e_and_options(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(drm_mode_parse_command_line_for_connector("720x480,test=42",
-							  &no_connector,
-							  &mode));
-
-	return 0;
+	const char *cmdline = "e,margin_right=14,margin_left=24,margin_bottom=36,margin_top=42";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_FALSE(test, mode.specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
+
+	KUNIT_EXPECT_EQ(test, mode.tv_margins.right, 14);
+	KUNIT_EXPECT_EQ(test, mode.tv_margins.left, 24);
+	KUNIT_EXPECT_EQ(test, mode.tv_margins.bottom, 36);
+	KUNIT_EXPECT_EQ(test, mode.tv_margins.top, 42);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_ON);
 }
 
-static int drm_cmdline_test_bpp_extra_and_option(void *ignored)
+static void drm_cmdline_test_panel_orientation(struct kunit *test)
 {
 	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480-24e,rotate=180",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-	FAIL_ON(mode.rotation_reflection != DRM_MODE_ROTATE_180);
-
-	FAIL_ON(mode.refresh_specified);
-
-	FAIL_ON(!mode.bpp_specified);
-	FAIL_ON(mode.bpp != 24);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_ON);
-
-	return 0;
+	const char *cmdline = "panel_orientation=upside_down";
+
+	KUNIT_ASSERT_TRUE(test, drm_mode_parse_command_line_for_connector(cmdline,
+									  &no_connector,
+									  &mode));
+	KUNIT_EXPECT_FALSE(test, mode.specified);
+	KUNIT_EXPECT_FALSE(test, mode.refresh_specified);
+	KUNIT_EXPECT_FALSE(test, mode.bpp_specified);
+
+	KUNIT_EXPECT_EQ(test, mode.panel_orientation, DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP);
+
+	KUNIT_EXPECT_FALSE(test, mode.rb);
+	KUNIT_EXPECT_FALSE(test, mode.cvt);
+	KUNIT_EXPECT_FALSE(test, mode.interlace);
+	KUNIT_EXPECT_FALSE(test, mode.margins);
+	KUNIT_EXPECT_EQ(test, mode.force, DRM_FORCE_UNSPECIFIED);
 }
 
-static int drm_cmdline_test_extra_and_option(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("720x480e,rotate=180",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(!mode.specified);
-	FAIL_ON(mode.xres != 720);
-	FAIL_ON(mode.yres != 480);
-	FAIL_ON(mode.rotation_reflection != DRM_MODE_ROTATE_180);
-
-	FAIL_ON(mode.refresh_specified);
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_ON);
-
-	return 0;
-}
+struct drm_cmdline_negative_test {
+	const char *name;
+	const char *cmdline;
+};
 
-static int drm_cmdline_test_freestanding_options(void *ignored)
+static void drm_cmdline_test_negative(struct kunit *test)
 {
+	const struct drm_cmdline_negative_test *params = test->param_value;
 	struct drm_cmdline_mode mode = { };
 
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("margin_right=14,margin_left=24,margin_bottom=36,margin_top=42",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(mode.specified);
-	FAIL_ON(mode.refresh_specified);
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.tv_margins.right != 14);
-	FAIL_ON(mode.tv_margins.left != 24);
-	FAIL_ON(mode.tv_margins.bottom != 36);
-	FAIL_ON(mode.tv_margins.top != 42);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
-
-	return 0;
+	KUNIT_EXPECT_FALSE(test, drm_mode_parse_command_line_for_connector(params->cmdline,
+									   &no_connector,
+									   &mode));
 }
 
-static int drm_cmdline_test_freestanding_force_e_and_options(void *ignored)
-{
-	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("e,margin_right=14,margin_left=24,margin_bottom=36,margin_top=42",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(mode.specified);
-	FAIL_ON(mode.refresh_specified);
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.tv_margins.right != 14);
-	FAIL_ON(mode.tv_margins.left != 24);
-	FAIL_ON(mode.tv_margins.bottom != 36);
-	FAIL_ON(mode.tv_margins.top != 42);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_ON);
-
-	return 0;
-}
+static const struct drm_cmdline_negative_test drm_cmdline_negative_tests[] = {
+	{
+		.name = "margin_only",
+		.cmdline = "m",
+	},
+	{
+		.name = "interlace_only",
+		.cmdline = "i",
+	},
+	{
+		.name = "res_missing_x",
+		.cmdline = "x480",
+	},
+	{
+		.name = "res_missing_y",
+		.cmdline = "1024x",
+	},
+	{
+		.name = "res_bad_y",
+		.cmdline = "1024xtest",
+	},
+	{
+		.name = "res_missing_y_bpp",
+		.cmdline = "1024x-24",
+	},
+	{
+		.name = "res_bad_bpp",
+		.cmdline = "720x480-test",
+	},
+	{
+		.name = "res_bad_refresh",
+		.cmdline = "720x480@refresh",
+	},
+	{
+		.name = "res_bpp_refresh_force_on_off",
+		.cmdline = "720x480-24@60de",
+	},
+	{
+		.name = "res_invalid_mode",
+		.cmdline = "720x480f",
+	},
+	{
+		.name = "res_bpp_wrong_place_mode",
+		.cmdline = "720x480e-24",
+	},
+	{
+		.name = "name_bpp_refresh",
+		.cmdline = "NTSC-24@60",
+	},
+	{
+		.name = "name_refresh",
+		.cmdline = "NTSC@60",
+	},
+	{
+		.name = "name_refresh_wrong_mode",
+		.cmdline = "NTSC@60m",
+	},
+	{
+		.name = "name_refresh_invalid_mode",
+		.cmdline = "NTSC@60f",
+	},
+	{
+		.name = "rotate_multiple",
+		.cmdline = "720x480,rotate=0,rotate=90",
+	},
+	{
+		.name = "rotate_invalid_val",
+		.cmdline = "720x480,rotate=42",
+	},
+	{
+		.name = "rotate_truncated",
+		.cmdline = "720x480,rotate=",
+	},
+	{
+		.name = "invalid_option",
+		.cmdline = "720x480,test=42",
+	},
+};
 
-static int drm_cmdline_test_panel_orientation(void *ignored)
+static void drm_cmdline_negative_desc(const struct drm_cmdline_negative_test *t,
+				      char *desc)
 {
-	struct drm_cmdline_mode mode = { };
-
-	FAIL_ON(!drm_mode_parse_command_line_for_connector("panel_orientation=upside_down",
-							   &no_connector,
-							   &mode));
-	FAIL_ON(mode.specified);
-	FAIL_ON(mode.refresh_specified);
-	FAIL_ON(mode.bpp_specified);
-
-	FAIL_ON(mode.panel_orientation != DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP);
-
-	FAIL_ON(mode.rb);
-	FAIL_ON(mode.cvt);
-	FAIL_ON(mode.interlace);
-	FAIL_ON(mode.margins);
-	FAIL_ON(mode.force != DRM_FORCE_UNSPECIFIED);
-
-	return 0;
+	sprintf(desc, "%s", t->name);
 }
 
-#include "drm_selftest.c"
-
-static int __init test_drm_cmdline_init(void)
-{
-	int err;
+KUNIT_ARRAY_PARAM(drm_cmdline_negative, drm_cmdline_negative_tests, drm_cmdline_negative_desc);
+
+static struct kunit_case drm_cmdline_tests[] = {
+	KUNIT_CASE(drm_cmdline_test_force_d_only),
+	KUNIT_CASE(drm_cmdline_test_force_D_only_dvi),
+	KUNIT_CASE(drm_cmdline_test_force_D_only_hdmi),
+	KUNIT_CASE(drm_cmdline_test_force_D_only_not_digital),
+	KUNIT_CASE(drm_cmdline_test_force_e_only),
+	KUNIT_CASE(drm_cmdline_test_res),
+	KUNIT_CASE(drm_cmdline_test_res_vesa),
+	KUNIT_CASE(drm_cmdline_test_res_vesa_rblank),
+	KUNIT_CASE(drm_cmdline_test_res_rblank),
+	KUNIT_CASE(drm_cmdline_test_res_bpp),
+	KUNIT_CASE(drm_cmdline_test_res_refresh),
+	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh),
+	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_interlaced),
+	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_margins),
+	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_force_off),
+	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_force_on),
+	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_force_on_analog),
+	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_force_on_digital),
+	KUNIT_CASE(drm_cmdline_test_res_bpp_refresh_interlaced_margins_force_on),
+	KUNIT_CASE(drm_cmdline_test_res_margins_force_on),
+	KUNIT_CASE(drm_cmdline_test_res_vesa_margins),
+	KUNIT_CASE(drm_cmdline_test_name),
+	KUNIT_CASE(drm_cmdline_test_name_bpp),
+	KUNIT_CASE(drm_cmdline_test_name_option),
+	KUNIT_CASE(drm_cmdline_test_name_bpp_option),
+	KUNIT_CASE(drm_cmdline_test_rotate_0),
+	KUNIT_CASE(drm_cmdline_test_rotate_90),
+	KUNIT_CASE(drm_cmdline_test_rotate_180),
+	KUNIT_CASE(drm_cmdline_test_rotate_270),
+	KUNIT_CASE(drm_cmdline_test_hmirror),
+	KUNIT_CASE(drm_cmdline_test_vmirror),
+	KUNIT_CASE(drm_cmdline_test_margin_options),
+	KUNIT_CASE(drm_cmdline_test_multiple_options),
+	KUNIT_CASE(drm_cmdline_test_bpp_extra_and_option),
+	KUNIT_CASE(drm_cmdline_test_extra_and_option),
+	KUNIT_CASE(drm_cmdline_test_freestanding_options),
+	KUNIT_CASE(drm_cmdline_test_freestanding_force_e_and_options),
+	KUNIT_CASE(drm_cmdline_test_panel_orientation),
+	KUNIT_CASE_PARAM(drm_cmdline_test_negative, drm_cmdline_negative_gen_params),
+	{}
+};
 
-	err = run_selftests(selftests, ARRAY_SIZE(selftests), NULL);
+static struct kunit_suite drm_cmdline_test_suite = {
+	.name = "drm_cmdline_tests",
+	.test_cases = drm_cmdline_tests,
+};
 
-	return err > 0 ? 0 : err;
-}
-module_init(test_drm_cmdline_init);
+kunit_test_suite(drm_cmdline_test_suite);
 
 MODULE_AUTHOR("Maxime Ripard <maxime.ripard@bootlin.com>");
 MODULE_LICENSE("GPL");