Add more serverapp tests (jupyter-server#1079)

* add more serverapp tests

* try again

* try to isolate failure

* try isolating stop app

* try again

* try again

* another debug

* try again

* try again

* try again

* try again

* try again

* try again

* try again

.github/workflows/integration-tests.yml

@@ -17,17 +17,13 @@ jobs:
         uses: actions/checkout@v3
       - name: Base Setup
         uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
-      - name: Install the Python dependencies
-        run: |
-          pip install -e ".[test]"
-          pip install pytest-github-actions-annotate-failures
-      - name: List installed packages
-        run: |
-          pip freeze
-          pip check
       - name: Run the tests
         run: |
           hatch run cov:integration
+      - name: Coverage
+        run: |
+          pip install codecov
+          codecov
 
   integration_check: # This job does nothing and is only used for the branch protection
     if: always()

pyproject.toml

@@ -152,6 +152,7 @@ exclude_lines = [
   "def __repr__",
   "if self.debug:",
   "if settings.DEBUG",
+  "if TYPE_CHECKING:",
   "raise AssertionError",
   "raise NotImplementedError",
   "if 0:",

tests/test_serverapp.py

@@ -2,6 +2,7 @@
 import logging
 import os
 import pathlib
+import warnings
 from unittest.mock import patch
 
 import pytest
@@ -10,7 +11,13 @@
 from traitlets.tests.utils import check_help_all_output
 
 from jupyter_server.auth.security import passwd_check
-from jupyter_server.serverapp import JupyterPasswordApp, ServerApp, list_running_servers
+from jupyter_server.serverapp import (
+    JupyterPasswordApp,
+    ServerApp,
+    ServerWebApplication,
+    list_running_servers,
+    random_ports,
+)
 
 
 def test_help_output():
@@ -401,3 +408,32 @@ def test_observed_root_dir_does_not_update_preferred_dir(tmp_path, jp_configurab
     app = jp_configurable_serverapp(root_dir=path, preferred_dir=path)
     app.root_dir = new_path
     assert app.preferred_dir == path
+
+
+def test_random_ports():
+    ports = list(random_ports(500, 50))
+    assert len(ports) == 50
+
+
+def test_server_web_application(jp_serverapp):
+    server: ServerApp = jp_serverapp
+    server.default_url = "/foo"
+    with warnings.catch_warnings():
+        warnings.simplefilter("ignore")
+        app = ServerWebApplication(
+            server,
+            [],
+            server.kernel_manager,
+            server.contents_manager,
+            server.session_manager,
+            server.kernel_manager,
+            server.config_manager,
+            server.event_logger,
+            ["jupyter_server.gateway.handlers"],
+            server.log,
+            server.base_url,
+            server.default_url,
+            {},
+            {},
+        )
+    app.init_handlers([], app.settings)

tests/unix_sockets/test_serverapp_integration.py

@@ -6,7 +6,12 @@
 
 import pytest
 
-from jupyter_server.serverapp import list_running_servers, shutdown_server
+from jupyter_server.serverapp import (
+    JupyterServerListApp,
+    JupyterServerStopApp,
+    list_running_servers,
+    shutdown_server,
+)
 from jupyter_server.utils import urlencode_unix_socket, urlencode_unix_socket_path
 
 # Skip this module if on Windows. Unix sockets are not available on Windows.
@@ -58,6 +63,13 @@ def test_shutdown_sock_server_integration(jp_unix_socket_file):
 
     assert encoded_sock_path.encode() in subprocess.check_output(["jupyter-server", "list"])
 
+    # Fake out stopping the server.
+    app = JupyterServerStopApp(sock=str(jp_unix_socket_file))
+    app.initialize([])
+    app.shutdown_server = lambda _: True  # type:ignore
+    app._maybe_remove_unix_socket = lambda _: _  # type: ignore
+    app.start()
+
     subprocess.check_output(["jupyter-server", "stop", jp_unix_socket_file])
 
     assert encoded_sock_path.encode() not in subprocess.check_output(["jupyter-server", "list"])
@@ -195,4 +207,44 @@ def test_shutdown_server(jp_environ):
             break
         except ConnectionRefusedError:
             time.sleep(0.1)
-    p.wait()
+    _cleanup_process(p)
+
+
+@pytest.mark.integration_test
+def test_jupyter_server_apps(jp_environ):
+
+    # Start a server in another process
+    # Stop that server
+    import subprocess
+
+    from jupyter_client.connect import LocalPortCache
+
+    port = LocalPortCache().find_available_port("localhost")
+    p = subprocess.Popen(["jupyter-server", f"--port={port}"])
+    servers = []
+    while 1:
+        servers = list(list_running_servers())
+        if len(servers):
+            break
+        time.sleep(0.1)
+
+    app = JupyterServerListApp()
+    app.initialize([])
+    app.jsonlist = True
+    app.start()
+    app.jsonlist = False
+    app.json = True
+    app.start()
+    app.json = False
+    app.start()
+
+    app = JupyterServerStopApp()
+    app.initialize([])
+    app.port = port
+    while 1:
+        try:
+            app.start()
+            break
+        except ConnectionRefusedError:
+            time.sleep(0.1)
+    _cleanup_process(p)