Implement client-server test infra and window opening tests

These tests make a real Niri instance and real Wayland clients (via manual
wayland-rs implementation), both on the same event loop local to the test. This
allows testing the full Wayland interaction, including arbitrary event ordering
and delays.

To start off, add a massive powerset test for the settings that influence where
a window may open.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/lib.rs b/src/lib.rs
index abce64a1..62d6eebf 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -28,3 +28,6 @@ pub mod pw_utils;
 
 #[cfg(not(feature = "xdp-gnome-screencast"))]
 pub use dummy_pw_utils as pw_utils;
+
+#[cfg(test)]
+mod tests;