Insert test for the drm_rect_intersect() function, it also create a
helper for comparing drm_rects more easily.
Signed-off-by: Arthur Grillo <arthurgrillo@xxxxxxxxxx>
---
drivers/gpu/drm/tests/drm_rect_test.c | 30 +++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/drivers/gpu/drm/tests/drm_rect_test.c b/drivers/gpu/drm/tests/drm_rect_test.c
index e9809ea32696..f700984f70a8 100644
--- a/drivers/gpu/drm/tests/drm_rect_test.c
+++ b/drivers/gpu/drm/tests/drm_rect_test.c
@@ -9,6 +9,15 @@
#include <drm/drm_rect.h>
+static void drm_rect_compare(struct kunit *test, const struct drm_rect *r,
+ const struct drm_rect *expected)
+{
+ KUNIT_EXPECT_EQ(test, r->x1, expected->x1);
+ KUNIT_EXPECT_EQ(test, r->y1, expected->y1);
+ KUNIT_EXPECT_EQ(test, drm_rect_width(r), drm_rect_width(expected));
+ KUNIT_EXPECT_EQ(test, drm_rect_height(r), drm_rect_height(expected));
+}
+
static void drm_test_rect_clip_scaled_div_by_zero(struct kunit *test)
{
struct drm_rect src, dst, clip;
@@ -196,11 +205,32 @@ static void drm_test_rect_clip_scaled_signed_vs_unsigned(struct kunit *test)
KUNIT_EXPECT_FALSE_MSG(test, drm_rect_visible(&src), "Source should not be visible\n");
}
+static void drm_test_rect_intersect(struct kunit *test)
+{
+ struct drm_rect r1, r2;
+ bool visible;
+
+ drm_rect_init(&r1, 0, 0, 2, 2);
+ drm_rect_init(&r2, 1, 1, 2, 2);
+
+ visible = drm_rect_intersect(&r1, &r2);
+
+ KUNIT_EXPECT_TRUE_MSG(test, visible, "Interserction should be a visible rect");
+ drm_rect_compare(test, &r1, &DRM_RECT_INIT(1, 1, 1, 1));
+
+ drm_rect_init(&r1, 0, 0, 1, 1);
+
+ visible = drm_rect_intersect(&r1, &r2);
+
+ KUNIT_EXPECT_FALSE_MSG(test, visible, "Interserction should not be a visible rect");
+}
+
static struct kunit_case drm_rect_tests[] = {
KUNIT_CASE(drm_test_rect_clip_scaled_div_by_zero),
KUNIT_CASE(drm_test_rect_clip_scaled_not_clipped),
KUNIT_CASE(drm_test_rect_clip_scaled_clipped),
KUNIT_CASE(drm_test_rect_clip_scaled_signed_vs_unsigned),
+ KUNIT_CASE(drm_test_rect_intersect),
{ }
};
--
2.39.2
