linux-kernel - [PATCH] drm/tests: Add KUnit tests for drm_mode_create_dvi_i

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Date:   Fri, 10 Nov 2023 16:33:23 +0530
From:   Dipam Turkar <dipamt1729@...il.com>
To:     maarten.lankhorst@...ux.intel.com
Cc:     mripard@...nel.org, tzimmermann@...e.de, airlied@...il.com,
        daniel@...ll.ch, mairacanal@...eup.net, javierm@...hat.com,
        arthurgrillo@...eup.net, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, Dipam Turkar <dipamt1729@...il.com>
Subject: [PATCH] drm/tests: Add KUnit tests for drm_mode_create_dvi_i_properties()

Introduce unit tests for the drm_mode_create_dvi_i_properties() function to ensure
the proper creation of DVI-I specific connector properties.

Signed-off-by: Dipam Turkar <dipamt1729@...il.com>
---
 drivers/gpu/drm/tests/drm_connector_test.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/gpu/drm/tests/drm_connector_test.c b/drivers/gpu/drm/tests/drm_connector_test.c
index c66aa2dc8d9d..aad63839b5e5 100644
--- a/drivers/gpu/drm/tests/drm_connector_test.c
+++ b/drivers/gpu/drm/tests/drm_connector_test.c
@@ -4,6 +4,9 @@
  */
 
 #include <drm/drm_connector.h>
+#include <drm/drm_device.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_kunit_helpers.h>
 
 #include <kunit/test.h>
 
@@ -58,10 +61,27 @@ static void drm_test_get_tv_mode_from_name_truncated(struct kunit *test)
 	KUNIT_EXPECT_LT(test, ret, 0);
 };
 
+static void drm_test_mode_create_dvi_i_properties(struct kunit *test)
+{
+	struct drm_device *drm;
+	struct device *dev;
+
+	dev = drm_kunit_helper_alloc_device(test);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev);
+
+	drm = __drm_kunit_helper_alloc_drm_device(test, dev, sizeof(*drm), 0, DRIVER_MODESET);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, drm);
+
+	KUNIT_EXPECT_EQ(test, drm_mode_create_dvi_i_properties(drm), 0);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, drm->mode_config.dvi_i_select_subconnector_property);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, drm->mode_config.dvi_i_subconnector_property);
+}
+
 static struct kunit_case drm_get_tv_mode_from_name_tests[] = {
 	KUNIT_CASE_PARAM(drm_test_get_tv_mode_from_name_valid,
 			 drm_get_tv_mode_from_name_valid_gen_params),
 	KUNIT_CASE(drm_test_get_tv_mode_from_name_truncated),
+	KUNIT_CASE(drm_test_mode_create_dvi_i_properties),
 	{ }
 };
 
-- 
2.34.1