Separate theme rendering from client subscriptions and materials

scripts/tests/test_material_isolated.py

@@ -0,0 +1,71 @@
+"""Check client material lifetimes on a disposable nested compositor.
+
+FERESE_TEST_MATERIAL=1 python3 scripts/tests/test_material_isolated.py
+Requires built debug compositor binaries, a Wayland host and dbus-daemon.
+"""
+import os
+from pathlib import Path
+import signal
+import subprocess
+import tempfile
+import time
+import unittest
+
+ROOT = Path(__file__).resolve().parents[2]
+
+
+@unittest.skipUnless(os.environ.get("FERESE_TEST_MATERIAL") == "1", "requires a Wayland host")
+class MaterialLifetime(unittest.TestCase):
+    def test_attachment_and_release(self):
+        with tempfile.TemporaryDirectory(prefix="ferese-material-") as directory:
+            root = Path(directory)
+            runtime = root / "runtime"
+            runtime.mkdir(mode=0o700)
+            config = root / "config/ferese"
+            config.mkdir(parents=True)
+            (config / "config.kdl").write_text("")
+            host = Path(os.environ["WAYLAND_DISPLAY"])
+            if not host.is_absolute():
+                host = Path(os.environ["XDG_RUNTIME_DIR"]) / host
+            env = dict(os.environ, WAYLAND_DISPLAY=str(host), XDG_RUNTIME_DIR=str(runtime),
+                       XDG_CONFIG_HOME=str(root / "config"), XDG_DATA_HOME=str(root / "data"),
+                       XDG_STATE_HOME=str(root / "state"), XDG_CACHE_HOME=str(root / "cache"))
+            children = []
+            with (root / "compositor.log").open("w") as log:
+                try:
+                    bus = subprocess.Popen(["dbus-daemon", "--session", "--nofork", "--print-address=1"],
+                                           env=env, stdout=subprocess.PIPE, text=True, start_new_session=True)
+                    children.append(bus)
+                    env["DBUS_SESSION_BUS_ADDRESS"] = bus.stdout.readline().strip()
+                    compositor = subprocess.Popen([str(ROOT / "target/debug/ferese"), "--backend", "nested"],
+                                                  env=env, stdout=log, stderr=log, start_new_session=True)
+                    children.append(compositor)
+                    deadline = time.monotonic() + 10
+                    while time.monotonic() < deadline:
+                        self.assertIsNone(compositor.poll(), (root / "compositor.log").read_text())
+                        sockets = [p for p in runtime.glob("wayland-*") if p.is_socket()]
+                        if sockets and (runtime / "ferese/control.sock").is_socket():
+                            break
+                        time.sleep(.05)
+                    else:
+                        self.fail("Nested compositor did not become ready")
+                    env["WAYLAND_DISPLAY"] = str(sockets[0])
+                    result = subprocess.run([
+                        "cargo", "test", "--workspace", "--locked",
+                        "material::tests::attachment_acknowledgement_and_last_clone_release",
+                        "--", "--ignored", "--exact",
+                    ], cwd=ROOT, env=env, capture_output=True, text=True, timeout=120)
+                    self.assertEqual(result.returncode, 0, result.stdout + result.stderr)
+                    self.assertIn("1 passed", result.stdout)
+                    self.assertIsNone(compositor.poll())
+                finally:
+                    for child in reversed(children):
+                        if child.poll() is None:
+                            os.killpg(child.pid, signal.SIGTERM)
+                        child.wait(timeout=5)
+                        if child.stdout:
+                            child.stdout.close()
+
+
+if __name__ == "__main__":
+    unittest.main()