From b988fd73c909cc859999881374bb1fc2839eae35 Mon Sep 17 00:00:00 2001
From: Robert Mader <robert.mader@collabora.com>
Date: Sat, 21 May 2022 18:18:01 +0200
Subject: [PATCH] tests/wayland: Add test for buffer transforms

Ensure that buffer transforms are correctly rendered.

This test would fail without the commit
"wayland/surface: Swap 90 and 270 degree transforms"

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1055>
---
 .../ref-tests/wayland_buffer_transform_0.ref.png | Bin 0 -> 1421 bytes
 .../ref-tests/wayland_buffer_transform_1.ref.png | Bin 0 -> 1420 bytes
 .../ref-tests/wayland_buffer_transform_2.ref.png | Bin 0 -> 1419 bytes
 .../ref-tests/wayland_buffer_transform_3.ref.png | Bin 0 -> 1422 bytes
 .../ref-tests/wayland_buffer_transform_4.ref.png | Bin 0 -> 1419 bytes
 .../ref-tests/wayland_buffer_transform_5.ref.png | Bin 0 -> 1422 bytes
 .../ref-tests/wayland_buffer_transform_6.ref.png | Bin 0 -> 1422 bytes
 .../ref-tests/wayland_buffer_transform_7.ref.png | Bin 0 -> 1420 bytes
 src/tests/wayland-test-clients/meson.build       |   3 +++
 src/tests/wayland-unit-tests.c                   |  12 ++++++++++++
 10 files changed, 15 insertions(+)
 create mode 100644 src/tests/ref-tests/wayland_buffer_transform_0.ref.png
 create mode 100644 src/tests/ref-tests/wayland_buffer_transform_1.ref.png
 create mode 100644 src/tests/ref-tests/wayland_buffer_transform_2.ref.png
 create mode 100644 src/tests/ref-tests/wayland_buffer_transform_3.ref.png
 create mode 100644 src/tests/ref-tests/wayland_buffer_transform_4.ref.png
 create mode 100644 src/tests/ref-tests/wayland_buffer_transform_5.ref.png
 create mode 100644 src/tests/ref-tests/wayland_buffer_transform_6.ref.png
 create mode 100644 src/tests/ref-tests/wayland_buffer_transform_7.ref.png

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diff --git a/src/tests/wayland-test-clients/meson.build b/src/tests/wayland-test-clients/meson.build
index 083c75057..6633b56f4 100644
--- a/src/tests/wayland-test-clients/meson.build
+++ b/src/tests/wayland-test-clients/meson.build
@@ -46,6 +46,9 @@ common_sources = [
 ]
 
 wayland_test_clients = [
+  {
+    'name': 'buffer-transform',
+  },
   {
     'name': 'subsurface-remap-toplevel',
   },
diff --git a/src/tests/wayland-unit-tests.c b/src/tests/wayland-unit-tests.c
index 116531ba4..9acbca23c 100644
--- a/src/tests/wayland-unit-tests.c
+++ b/src/tests/wayland-unit-tests.c
@@ -65,6 +65,16 @@ subsurface_remap_toplevel (void)
   meta_wayland_test_client_finish (wayland_test_client);
 }
 
+static void
+buffer_transform (void)
+{
+  MetaWaylandTestClient *wayland_test_client;
+
+  wayland_test_client =
+    meta_wayland_test_client_new ("buffer-transform");
+  meta_wayland_test_client_finish (wayland_test_client);
+}
+
 static void
 subsurface_reparenting (void)
 {
@@ -656,6 +666,8 @@ on_after_tests (void)
 static void
 init_tests (void)
 {
+  g_test_add_func ("/wayland/buffer/transform",
+                   buffer_transform);
   g_test_add_func ("/wayland/subsurface/remap-toplevel",
                    subsurface_remap_toplevel);
   g_test_add_func ("/wayland/subsurface/reparent",