tree: ensure that node is marked active after un-fullscreening

src/it/test_config.rs

@@ -181,6 +181,13 @@ impl TestConfig {
         })
     }
 
+    pub fn set_fullscreen(&self, seat: SeatId, fs: bool) -> TestResult {
+        self.send(ClientMessage::SetFullscreen {
+            seat: Seat(seat.raw() as _),
+            fullscreen: fs,
+        })
+    }
+
     fn clear(&self) {
         unsafe {
             if let Some(srv) = self.srv.take() {

src/it/tests.rs

@@ -35,6 +35,7 @@ mod t0006_region;
 mod t0007_subsurface;
 mod t0008_map_focus;
 mod t0009_tab_focus;
+mod t0010_fullscreen_focus;
 
 pub trait TestCase: Sync {
     fn name(&self) -> &'static str;
@@ -62,5 +63,6 @@ pub fn tests() -> Vec<&'static dyn TestCase> {
         t0007_subsurface,
         t0008_map_focus,
         t0009_tab_focus,
+        t0010_fullscreen_focus,
     }
 }

src/it/tests/t0010_fullscreen_focus.rs

@@ -0,0 +1,42 @@
+use {
+    crate::{
+        it::{test_error::TestError, testrun::TestRun},
+        tree::ToplevelNode,
+    },
+    std::rc::Rc,
+};
+
+testcase!();
+
+/// Test that container focus is set after un-fullscreening
+async fn test(run: Rc<TestRun>) -> Result<(), TestError> {
+    let ds = run.create_default_setup().await?;
+    ds.mouse.rel(1.0, 1.0);
+
+    let client = run.create_client().await?;
+
+    let window = client.create_window().await?;
+    window.map().await?;
+
+    tassert!(!window.tl.server.tl_data().is_fullscreen.get());
+
+    run.cfg.set_fullscreen(ds.seat.id(), true)?;
+
+    tassert!(window.tl.server.tl_data().is_fullscreen.get());
+
+    run.cfg.set_fullscreen(ds.seat.id(), false)?;
+
+    tassert!(!window.tl.server.tl_data().is_fullscreen.get());
+
+    let container = match window.tl.server.tl_data().parent.get() {
+        Some(p) => match p.node_into_container() {
+            Some(p) => p,
+            _ => bail!("Containing node is not a container"),
+        },
+        _ => bail!("Toplevel doesn't have a parent"),
+    };
+
+    tassert!(container.children.iter().next().unwrap().active.get());
+
+    Ok(())
+}