shared shell registry

tests/test_app.py

@@ -49,6 +49,14 @@ class AppTests(unittest.TestCase):
             ],
         )
 
+    def test_call_ids_are_readable(self):
+        app = App()
+
+        with contextlib.redirect_stdout(io.StringIO()):
+            call = app.run_code("1 + 1", shell_name="new")
+
+        self.assertRegex(call.call_id, r"^[a-z]+-[a-z]+-[a-z]+-[0-9a-f]{4}$")
+
     def test_last_reuses_shell_but_each_call_has_new_id(self):
         app = App()
 

tests/test_jupyter_app.py

@@ -1,4 +1,5 @@
 import asyncio
+import re
 import unittest
 
 from ipython_shell.jupyter.app import JupyterApp
@@ -48,6 +49,25 @@ class JupyterShellTests(unittest.IsolatedAsyncioTestCase):
 
 
 class JupyterAppTests(unittest.IsolatedAsyncioTestCase):
+    async def test_app_exposes_shared_shell_metadata_api(self):
+        app = JupyterApp()
+        try:
+            created = app.create_shell()
+            listed = app.list_shells()
+            last = app.get_last_shell()
+            selected = app.get_shell(created.name)
+            info = app.info()
+        finally:
+            await app.shutdown()
+
+        self.assertEqual(len(listed), 1)
+        self.assertEqual(created.shell_id, listed[0].shell_id)
+        self.assertEqual(created.shell_id, last.shell_id)
+        self.assertEqual(created.shell_id, selected.shell_id)
+        self.assertEqual(created.execution_count, 0)
+        self.assertEqual(info.shell_count, 1)
+        self.assertEqual(info.last_shell, created.name)
+
     async def test_named_shells_have_isolated_namespaces(self):
         app = JupyterApp()
         try:
@@ -110,7 +130,10 @@ class JupyterAppTests(unittest.IsolatedAsyncioTestCase):
 
             self.assertIsInstance(input_request, InputRequest)
             assert isinstance(input_request, InputRequest)
-            self.assertTrue(input_request.call_id)
+            self.assertRegex(
+                input_request.call_id,
+                re.compile(r"^[a-z]+-[a-z]+-[a-z]+-[0-9a-f]{4}$"),
+            )
             self.assertEqual(input_request.prompt, "name? ")
 
             await app.reply_to_input(input_request.call_id, "Ada")