Insert test for the drm_rect_vscale() function, besides the test
for the usual case it also test for the exceptions.
Signed-off-by: Arthur Grillo <arthurgrillo@xxxxxxxxxx>
---
drivers/gpu/drm/tests/drm_rect_test.c | 56 +++++++++++++++++++++++++++
1 file changed, 56 insertions(+)
diff --git a/drivers/gpu/drm/tests/drm_rect_test.c b/drivers/gpu/drm/tests/drm_rect_test.c
index c282e1cf9c30..a14da86ef435 100644
--- a/drivers/gpu/drm/tests/drm_rect_test.c
+++ b/drivers/gpu/drm/tests/drm_rect_test.c
@@ -388,6 +388,59 @@ static void drm_test_rect_calc_hscale_negative_args(struct kunit *test)
KUNIT_EXPECT_EQ(test, scaling_factor, -EINVAL);
}
+static void drm_test_rect_calc_vscale(struct kunit *test)
+{
+ struct drm_rect src, dst;
+ int scaling_factor;
+
+ drm_rect_init(&src, 0, 0, 0, 2 << 16);
+ drm_rect_init(&dst, 0, 0, 0, 1 << 16);
+
+ scaling_factor = drm_rect_calc_vscale(&src, &dst, 0, INT_MAX);
+
+ KUNIT_EXPECT_EQ(test, scaling_factor, 2);
+}
+
+static void drm_test_rect_calc_vscale_out_of_range(struct kunit *test)
+{
+ struct drm_rect src, dst;
+ int scaling_factor;
+
+ drm_rect_init(&src, 0, 0, 0, 10 << 16);
+ drm_rect_init(&dst, 0, 0, 0, 1 << 16);
+
+ scaling_factor = drm_rect_calc_vscale(&src, &dst, 3, 5);
+
+ KUNIT_EXPECT_EQ(test, scaling_factor, -ERANGE);
+
+ drm_rect_init(&src, 0, 0, 0, 2 << 16);
+ drm_rect_init(&dst, 0, 0, 0, 1 << 16);
+
+ scaling_factor = drm_rect_calc_vscale(&src, &dst, 3, 5);
+
+ KUNIT_EXPECT_EQ(test, scaling_factor, -ERANGE);
+}
+
+static void drm_test_rect_calc_vscale_negative_args(struct kunit *test)
+{
+ struct drm_rect src, dst;
+ int scaling_factor;
+
+ drm_rect_init(&src, 0, 0, 0, -1 << 16);
+ drm_rect_init(&dst, 0, 0, 0, 1 << 16);
+
+ scaling_factor = drm_rect_calc_vscale(&src, &dst, 0, INT_MAX);
+
+ KUNIT_EXPECT_EQ(test, scaling_factor, -EINVAL);
+
+ drm_rect_init(&src, 0, 0, 0, 1 << 16);
+ drm_rect_init(&dst, 0, 0, 0, -1 << 16);
+
+ scaling_factor = drm_rect_calc_vscale(&src, &dst, 0, INT_MAX);
+
+ KUNIT_EXPECT_EQ(test, scaling_factor, -EINVAL);
+}
+
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),
@@ -397,6 +450,9 @@ static struct kunit_case drm_rect_tests[] = {
KUNIT_CASE(drm_test_rect_calc_hscale),
KUNIT_CASE(drm_test_rect_calc_hscale_out_of_range),
KUNIT_CASE(drm_test_rect_calc_hscale_negative_args),
+ KUNIT_CASE(drm_test_rect_calc_vscale),
+ KUNIT_CASE(drm_test_rect_calc_vscale_out_of_range),
+ KUNIT_CASE(drm_test_rect_calc_vscale_negative_args),
{ }
};
--
2.39.2
