proper tests

cht/app.py

@@ -1,3 +1,4 @@
+import argparse
 import logging
 import os
 import signal
@@ -55,6 +56,11 @@ class ChtApp(Adw.Application):
             win = ChtWindow(application=self)
         win.present()
 
+        # Auto-connect for E2E testing: --auto-connect
+        # Delay gives the GUI time to fully render before starting the stream.
+        if os.environ.get("_CHT_AUTO_CONNECT") == "1" and not win._lifecycle.is_streaming:
+            GLib.timeout_add(2000, lambda: win._on_connect_clicked(None) or False)
+
 
 _STDERR_SKIP = [b"eglExportDMABUFImage"]
 
@@ -89,6 +95,16 @@ def _filter_stderr():
 
 
 def main():
+    parser = argparse.ArgumentParser(description="CHT — Stream Viewer + Agent")
+    parser.add_argument("--auto-connect", action="store_true", help="Connect on startup")
+    parser.add_argument("--python", action="store_true", help="Use Python transport (default)")
+    parser.add_argument("--rust", action="store_true", help="Use Rust transport")
+    args, gtk_args = parser.parse_known_args()
+
+    # Store parsed options so do_activate can read them
+    os.environ["_CHT_AUTO_CONNECT"] = "1" if args.auto_connect else "0"
+    os.environ["_CHT_RUST_TRANSPORT"] = "1" if args.rust else "0"
+
     _filter_stderr()
     logging.basicConfig(
         level=logging.DEBUG,
@@ -96,9 +112,10 @@ def main():
         datefmt="%H:%M:%S",
     )
     log = logging.getLogger("cht")
-    log.info("CHT starting")
+    log.info("CHT starting (transport=%s, auto_connect=%s)",
+             "rust" if args.rust else "python", args.auto_connect)
     app = ChtApp()
-    return app.run(sys.argv)
+    return app.run([sys.argv[0]] + gtk_args)
 
 
 if __name__ == "__main__":