[PATCH i-g-t v2 14/43] tests/vkms_configfs: Test CRTC valid values

[José Expósito]

Test that all valid values for the CRTC "writeback" work and that it
changes accordingly.

Signed-off-by: José Expósito <jose.exposito89 at gmail.com>
---
 tests/vkms/vkms_configfs.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/tests/vkms/vkms_configfs.c b/tests/vkms/vkms_configfs.c
index 1d96a627c..860a06f41 100644
--- a/tests/vkms/vkms_configfs.c
+++ b/tests/vkms/vkms_configfs.c
@@ -382,6 +382,30 @@ static void test_crtc_wrong_values(void)
 	igt_vkms_device_destroy(dev);
 }
 
+/**
+ * SUBTEST: crtc-valid-values
+ * Description: Check that setting valid values works.
+ */
+
+static void test_crtc_valid_values(void)
+{
+	igt_vkms_t *dev;
+
+	dev = igt_vkms_device_create(__func__);
+	igt_assert(dev);
+
+	igt_vkms_device_add_crtc(dev, "crtc0");
+
+	/* Test valid values for "writeback" */
+	igt_vkms_crtc_set_writeback_enabled(dev, "crtc0", true);
+	igt_assert(igt_vkms_crtc_is_writeback_enabled(dev, "crtc0"));
+
+	igt_vkms_crtc_set_writeback_enabled(dev, "crtc0", false);
+	igt_assert(!igt_vkms_crtc_is_writeback_enabled(dev, "crtc0"));
+
+	igt_vkms_device_destroy(dev);
+}
+
 igt_main
 {
 	struct {
@@ -398,6 +422,7 @@ igt_main
 		{ "crtc-default-files", test_crtc_default_files },
 		{ "crtc-default-values", test_crtc_default_values },
 		{ "crtc-wrong-values", test_crtc_wrong_values },
+		{ "crtc-valid-values", test_crtc_valid_values },
 	};
 
 	igt_fixture {
-- 
2.48.1