Fixed test_webui only failing in nix_sandbox

pkgs/clan-cli/tests/test_webui.py

@@ -5,16 +5,23 @@ import subprocess
 import sys
 from pathlib import Path
 
-import pytest
+from cli import Cli
 from ports import PortFunction
 
+from clan_cli.debug import breakpoint_container
 
-@pytest.mark.timeout(10)
+
+# @pytest.mark.timeout(10)
 def test_start_server(unused_tcp_port: PortFunction, temporary_home: Path) -> None:
+    Cli()
     port = unused_tcp_port()
 
     fifo = temporary_home / "fifo"
     os.mkfifo(fifo)
+
+    # Create a script called "firefox" in the temporary home directory that
+    # writes "1" to the fifo. This is used to notify the test that the firefox has been
+    # started.
     notify_script = temporary_home / "firefox"
     bash = shutil.which("bash")
     assert bash is not None
@@ -26,11 +33,27 @@ echo "1" > {fifo}
     )
     notify_script.chmod(0o700)
 
+    # Add the temporary home directory to the PATH so that the script is found
     env = os.environ.copy()
-    print(str(temporary_home.absolute()))
-    env["PATH"] = ":".join([str(temporary_home.absolute())] + env["PATH"].split(":"))
+    env["PATH"] = f"{temporary_home}:{env['PATH']}"
+
+    # Add build/src to PYTHONPATH so that the webui module is found in nix sandbox
+    python_path = env.get("PYTHONPATH")
+    if python_path:
+        env["PYTHONPATH"] = f"/build/src:{python_path}"
+
+    breakpoint_container(
+        cmd=[sys.executable, "-m", "clan_cli.webui", "--port", str(port)],
+        env=env,
+        work_dir=temporary_home,
+    )
+
     with subprocess.Popen(
-        [sys.executable, "-m", "clan_cli.webui", "--port", str(port)], env=env
+        [sys.executable, "-m", "clan_cli.webui", "--port", str(port)],
+        env=env,
+        stdout=sys.stderr,
+        stderr=sys.stderr,
+        text=True,
     ) as p:
         try:
             with open(fifo) as f: