Install tini as an ubuntu package

base-notebook/test/test_start_container.py

@@ -0,0 +1,43 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+import logging
+import pytest
+
+LOGGER = logging.getLogger(__name__)
+
+
+@pytest.mark.parametrize(
+    "env,expected_server", [(["JUPYTER_ENABLE_LAB=yes"], "lab"), (None, "notebook"), ],
+)
+def test_start_notebook(container, http_client, env, expected_server):
+    """Test the notebook start-notebook script"""
+    LOGGER.info(
+        f"Test that the start-notebook launches the {expected_server} server from the env {env} ..."
+    )
+    c = container.run(tty=True, environment=env, command=["start-notebook.sh"])
+    resp = http_client.get("http://localhost:8888")
+    assert resp.status_code == 200, "Server is not listening"
+    logs = c.logs(stdout=True).decode("utf-8")
+    LOGGER.debug(logs)
+    assert (
+        f"Executing the command: jupyter {expected_server}" in logs
+    ), f"Not the expected command (jupyter {expected_server}) was launched"
+    # Checking warning messages
+    if not env:
+        msg = "WARN: Jupyter Notebook deprecation notice"
+        assert msg in logs, f"Expected warning message {msg} not printed"
+
+
+def test_tini_entrypoint(container, pid=1, command="tini"):
+    """Check that tini is launched as PID 1
+
+    Credits to the following answer for the ps options used in the test:
+    https://superuser.com/questions/632979/if-i-know-the-pid-number-of-a-process-how-can-i-get-its-name
+    """
+    LOGGER.info(f"Test that {command} is launched as PID {pid} ...")
+    c = container.run(tty=True, command=["start.sh"])
+    # Select the PID 1 and get the corresponding command
+    cmd = c.exec_run(f"ps -p {pid} -o comm=")
+    output = cmd.output.decode("utf-8").strip("\n")
+    assert output == command, f"{command} shall be launched as pid {pid}, got {output}"