Add some typing to tests

.gitattributes

@@ -1,2 +1 @@
 * text=auto eol=lf
-

all-spark-notebook/test/test_spark_notebooks.py

@@ -4,20 +4,22 @@
 import logging
 
 import pytest
-import os
+from pathlib import Path
+
+from conftest import TrackedContainer
 
 LOGGER = logging.getLogger(__name__)
-THIS_DIR = os.path.dirname(os.path.realpath(__file__))
+THIS_DIR = Path(__file__).parent.resolve()
 
 
 @pytest.mark.parametrize(
     "test_file",
     # TODO: add local_sparklyr
     ["local_pyspark", "local_spylon", "local_sparkR", "issue_1168"],
 )
-def test_nbconvert(container, test_file):
+def test_nbconvert(container: TrackedContainer, test_file: str) -> None:
     """Check if Spark notebooks can be executed"""
-    host_data_dir = os.path.join(THIS_DIR, "data")
+    host_data_dir = THIS_DIR / "data"
     cont_data_dir = "/home/jovyan/data"
     output_dir = "/tmp"
     timeout_ms = 600
@@ -29,7 +31,7 @@ def test_nbconvert(container, test_file):
         + f"--execute {cont_data_dir}/{test_file}.ipynb"
     )
     c = container.run(
-        volumes={host_data_dir: {"bind": cont_data_dir, "mode": "ro"}},
+        volumes={str(host_data_dir): {"bind": cont_data_dir, "mode": "ro"}},
         tty=True,
         command=["start.sh", "bash", "-c", command],
     )

base-notebook/test/test_container_options.py

@@ -4,11 +4,14 @@
 import logging
 
 import pytest
+import requests
+
+from conftest import TrackedContainer
 
 LOGGER = logging.getLogger(__name__)
 
 
-def test_cli_args(container, http_client):
+def test_cli_args(container: TrackedContainer, http_client: requests.Session) -> None:
     """Container should respect notebook server command line args
     (e.g., disabling token security)"""
     c = container.run(command=["start-notebook.sh", "--NotebookApp.token=''"])
@@ -26,7 +29,9 @@ def test_cli_args(container, http_client):
 
 
 @pytest.mark.filterwarnings("ignore:Unverified HTTPS request")
-def test_unsigned_ssl(container, http_client):
+def test_unsigned_ssl(
+    container: TrackedContainer, http_client: requests.Session
+) -> None:
     """Container should generate a self-signed SSL certificate
     and notebook server should use it to enable HTTPS.
     """
@@ -48,7 +53,7 @@ def test_unsigned_ssl(container, http_client):
     assert warnings[0].startswith("WARNING: Jupyter Notebook deprecation notice")
 
 
-def test_uid_change(container):
+def test_uid_change(container: TrackedContainer) -> None:
     """Container should change the UID of the default user."""
     c = container.run(
         tty=True,
@@ -65,7 +70,7 @@ def test_uid_change(container):
     assert "uid=1010(jovyan)" in c.logs(stdout=True).decode("utf-8")
 
 
-def test_gid_change(container):
+def test_gid_change(container: TrackedContainer) -> None:
     """Container should change the GID of the default user."""
     c = container.run(
         tty=True,
@@ -82,7 +87,7 @@ def test_gid_change(container):
     assert "groups=110(jovyan),100(users)" in logs
 
 
-def test_nb_user_change(container):
+def test_nb_user_change(container: TrackedContainer) -> None:
     """Container should change the user name (`NB_USER`) of the default user."""
     nb_user = "nayvoj"
     running_container = container.run(
@@ -131,7 +136,7 @@ def test_nb_user_change(container):
     ), f"Hidden folder .jupyter was not copied properly to {nb_user} home folder. stat: {output}, expected {expected_output}"
 
 
-def test_chown_extra(container):
+def test_chown_extra(container: TrackedContainer) -> None:
     """Container should change the UID/GID of a comma separated
     CHOWN_EXTRA list of folders."""
     c = container.run(
@@ -160,7 +165,7 @@ def test_chown_extra(container):
     assert "/opt/conda/bin/jupyter:1010:101" in logs
 
 
-def test_chown_home(container):
+def test_chown_home(container: TrackedContainer) -> None:
     """Container should change the NB_USER home directory owner and
     group to the current value of NB_UID and NB_GID."""
     c = container.run(
@@ -183,7 +188,7 @@ def test_chown_home(container):
     assert "/home/kitten/.bashrc:1010:101" in logs
 
 
-def test_sudo(container):
+def test_sudo(container: TrackedContainer) -> None:
     """Container should grant passwordless sudo to the default user."""
     c = container.run(
         tty=True,
@@ -199,7 +204,7 @@ def test_sudo(container):
     assert "uid=0(root)" in logs
 
 
-def test_sudo_path(container):
+def test_sudo_path(container: TrackedContainer) -> None:
     """Container should include /opt/conda/bin in the sudo secure_path."""
     c = container.run(
         tty=True,
@@ -215,7 +220,7 @@ def test_sudo_path(container):
     assert logs.rstrip().endswith("/opt/conda/bin/jupyter")
 
 
-def test_sudo_path_without_grant(container):
+def test_sudo_path_without_grant(container: TrackedContainer) -> None:
     """Container should include /opt/conda/bin in the sudo secure_path."""
     c = container.run(
         tty=True,
@@ -230,7 +235,7 @@ def test_sudo_path_without_grant(container):
     assert logs.rstrip().endswith("/opt/conda/bin/jupyter")
 
 
-def test_group_add(container):
+def test_group_add(container: TrackedContainer) -> None:
     """Container should run with the specified uid, gid, and secondary
     group. It won't be possible to modify /etc/passwd since gid is nonzero, so
     additionally verify that setting gid=0 is suggested in a warning.
@@ -252,7 +257,7 @@ def test_group_add(container):
     assert "uid=1010 gid=1010 groups=1010,100(users)" in logs
 
 
-def test_set_uid(container):
+def test_set_uid(container: TrackedContainer) -> None:
     """Container should run with the specified uid and NB_USER.
     The /home/jovyan directory will not be writable since it's owned by 1000:users.
     Additionally verify that "--group-add=users" is suggested in a warning to restore
@@ -274,7 +279,7 @@ def test_set_uid(container):
     assert "--group-add=users" in warnings[0]
 
 
-def test_set_uid_and_nb_user(container):
+def test_set_uid_and_nb_user(container: TrackedContainer) -> None:
     """Container should run with the specified uid and NB_USER."""
     c = container.run(
         user="1010",
@@ -294,7 +299,7 @@ def test_set_uid_and_nb_user(container):
     assert "user is kitten but home is /home/jovyan" in warnings[0]
 
 
-def test_container_not_delete_bind_mount(container, tmp_path):
+def test_container_not_delete_bind_mount(container: TrackedContainer, tmp_path) -> None:
     """Container should not delete host system files when using the (docker)
     -v bind mount flag and mapping to /home/jovyan.
     """
@@ -324,7 +329,9 @@ def test_container_not_delete_bind_mount(container, tmp_path):
 
 
 @pytest.mark.parametrize("enable_root", [False, True])
-def test_jupyter_env_vars_to_unset_as_root(container, enable_root):
+def test_jupyter_env_vars_to_unset_as_root(
+    container: TrackedContainer, enable_root: bool
+) -> None:
     """Environment variables names listed in JUPYTER_ENV_VARS_TO_UNSET
     should be unset in the final environment."""
     root_args = {"user": "root"} if enable_root else {}

base-notebook/test/test_package_managers.py

@@ -4,6 +4,8 @@
 import logging
 import pytest
 
+from conftest import TrackedContainer
+
 LOGGER = logging.getLogger(__name__)
 
 
@@ -17,7 +19,9 @@
         ("pip", "--version"),
     ],
 )
-def test_package_manager(container, package_manager, version_arg):
+def test_package_manager(
+    container: TrackedContainer, package_manager: str, version_arg: tuple[str, ...]
+) -> None:
     """Test the notebook start-notebook script"""
     LOGGER.info(
         f"Test that the package manager {package_manager} is working properly ..."

base-notebook/test/test_pandoc.py

@@ -3,10 +3,12 @@
 
 import logging
 
+from conftest import TrackedContainer
+
 LOGGER = logging.getLogger(__name__)
 
 
-def test_pandoc(container):
+def test_pandoc(container: TrackedContainer) -> None:
     """Pandoc shall be able to convert MD to HTML."""
     c = container.run(
         tty=True,

base-notebook/test/test_python.py

@@ -4,10 +4,14 @@
 
 from packaging import version
 
+from conftest import TrackedContainer
+
 LOGGER = logging.getLogger(__name__)
 
 
-def test_python_version(container, python_next_version="3.10"):
+def test_python_version(
+    container: TrackedContainer, python_next_version: str = "3.10"
+) -> None:
     """Check that python version is lower than the next version"""
     LOGGER.info(f"Checking that python version is lower than {python_next_version}")
     c = container.run(

base-notebook/test/test_start_container.py

@@ -3,6 +3,9 @@
 
 import logging
 import pytest
+import requests
+
+from conftest import TrackedContainer
 
 LOGGER = logging.getLogger(__name__)
 
@@ -14,7 +17,12 @@
         (None, "notebook"),
     ],
 )
-def test_start_notebook(container, http_client, env, expected_server):
+def test_start_notebook(
+    container: TrackedContainer,
+    http_client: requests.Session,
+    env,
+    expected_server: str,
+) -> None:
     """Test the notebook start-notebook script"""
     LOGGER.info(
         f"Test that the start-notebook launches the {expected_server} server from the env {env} ..."
@@ -46,7 +54,9 @@ def test_start_notebook(container, http_client, env, expected_server):
         assert msg in logs, f"Expected warning message {msg} not printed"
 
 
-def test_tini_entrypoint(container, pid=1, command="tini"):
+def test_tini_entrypoint(
+    container: TrackedContainer, pid: int = 1, command: str = "tini"
+) -> None:
     """Check that tini is launched as PID 1
 
     Credits to the following answer for the ps options used in the test:

conftest.py

@@ -2,6 +2,7 @@
 # Distributed under the terms of the Modified BSD License.
 import os
 import logging
+import typing
 
 import docker
 import pytest
@@ -15,7 +16,7 @@
 
 
 @pytest.fixture(scope="session")
-def http_client():
+def http_client() -> requests.Session:
     """Requests session with retries and backoff."""
     s = requests.Session()
     retries = Retry(total=5, backoff_factor=1)
@@ -25,13 +26,13 @@ def http_client():
 
 
 @pytest.fixture(scope="session")
-def docker_client():
+def docker_client() -> docker.DockerClient:
     """Docker client configured based on the host environment"""
     return docker.from_env()
 
 
 @pytest.fixture(scope="session")
-def image_name():
+def image_name() -> str:
     """Image name to test"""
     return os.getenv("TEST_IMAGE")
 
@@ -50,13 +51,15 @@ class TrackedContainer:
         Default keyword arguments to pass to docker.DockerClient.containers.run
     """
 
-    def __init__(self, docker_client, image_name, **kwargs):
+    def __init__(
+        self, docker_client: docker.DockerClient, image_name: str, **kwargs: typing.Any
+    ):
         self.container = None
         self.docker_client = docker_client
         self.image_name = image_name
         self.kwargs = kwargs
 
-    def run(self, **kwargs):
+    def run(self, **kwargs: typing.Any):
         """Runs a docker container using the preconfigured image name
         and a mix of the preconfigured container options and those passed
         to this method.
@@ -74,9 +77,7 @@ def run(self, **kwargs):
         -------
         docker.Container
         """
-        all_kwargs = {}
-        all_kwargs.update(self.kwargs)
-        all_kwargs.update(kwargs)
+        all_kwargs = self.kwargs | kwargs
         LOGGER.info(f"Running {self.image_name} with args {all_kwargs} ...")
         self.container = self.docker_client.containers.run(
             self.image_name,
@@ -91,7 +92,7 @@ def remove(self):
 
 
 @pytest.fixture(scope="function")
-def container(docker_client, image_name):
+def container(docker_client: docker.DockerClient, image_name: str):
     """Notebook container with initial configuration appropriate for testing
     (e.g., HTTP port exposed to the host for HTTP calls).
 

datascience-notebook/test/test_julia.py

@@ -2,10 +2,12 @@
 # Distributed under the terms of the Modified BSD License.
 import logging
 
+from conftest import TrackedContainer
+
 LOGGER = logging.getLogger(__name__)
 
 
-def test_julia(container):
+def test_julia(container: TrackedContainer) -> None:
     """Basic julia test"""
     LOGGER.info("Test that julia is correctly installed ...")
     running_container = container.run(

minimal-notebook/test/test_inkscape.py

@@ -3,10 +3,12 @@
 
 import logging
 
+from conftest import TrackedContainer
+
 LOGGER = logging.getLogger(__name__)
 
 
-def test_inkscape(container):
+def test_inkscape(container: TrackedContainer) -> None:
     """Inkscape shall be installed to be able to convert SVG files."""
     LOGGER.info("Test that inkscape is working by printing its version ...")
     c = container.run(