test(cli): cover exit resume hint -p flag across profiles

5 tests: default/custom profiles emit no -p; named profile emits
-p <name> on both --resume and -c hints; lookup failure falls back
gracefully.

tests/cli/test_exit_summary_resume_hint.py

@@ -0,0 +1,83 @@
+"""Tests for the CLI exit summary's resume hint, including profile-flag support."""
+
+from datetime import datetime
+from unittest.mock import MagicMock, patch
+
+from cli import HermesCLI
+
+
+def _make_cli(session_id="20260524_000001_abc123"):
+    cli_obj = HermesCLI.__new__(HermesCLI)
+    cli_obj.session_id = session_id
+    # _print_exit_summary requires a populated conversation history (msg_count > 0)
+    # to print the resume hint at all. One synthetic user turn is enough.
+    cli_obj.conversation_history = [{"role": "user", "content": "hi"}]
+    cli_obj.agent = None
+    cli_obj._session_db = None
+    cli_obj.session_start = datetime.now()
+    return cli_obj
+
+
+class TestExitSummaryResumeHint:
+    """The exit-line ``Resume this session with:`` hint must include the
+    active profile (`-p <name>`) so session IDs round-trip across
+    profile boundaries — sessions live under `~/.hermes-profiles/<profile>/`,
+    so a hint copied without `-p` from a non-default profile won't find
+    the session.
+    """
+
+    def test_resume_hint_no_profile_flag_on_default(self, capsys):
+        cli_obj = _make_cli()
+        with patch("hermes_cli.profiles.get_active_profile_name", return_value="default"):
+            cli_obj._print_exit_summary()
+        out = capsys.readouterr().out
+        # No `-p` for the default profile.
+        assert "hermes --resume 20260524_000001_abc123" in out
+        assert " -p " not in out
+
+    def test_resume_hint_no_profile_flag_on_custom(self, capsys):
+        cli_obj = _make_cli()
+        with patch("hermes_cli.profiles.get_active_profile_name", return_value="custom"):
+            cli_obj._print_exit_summary()
+        out = capsys.readouterr().out
+        # "custom" is the standard HERMES_HOME indicator — no -p needed.
+        assert "hermes --resume 20260524_000001_abc123" in out
+        assert " -p " not in out
+
+    def test_resume_hint_includes_profile_flag_for_named_profile(self, capsys):
+        cli_obj = _make_cli()
+        with patch("hermes_cli.profiles.get_active_profile_name", return_value="dev"):
+            cli_obj._print_exit_summary()
+        out = capsys.readouterr().out
+        assert "hermes --resume 20260524_000001_abc123 -p dev" in out
+
+    def test_resume_hint_includes_profile_flag_on_title_hint_too(self, capsys, tmp_path):
+        """When a session title is available, the `hermes -c "title"` hint
+        must also include the `-p` flag for non-default profiles.
+        """
+        cli_obj = _make_cli()
+        fake_db = MagicMock()
+        fake_db.get_session_title.return_value = "My Cool Session"
+        cli_obj._session_db = fake_db
+
+        with patch("hermes_cli.profiles.get_active_profile_name", return_value="dev"):
+            cli_obj._print_exit_summary()
+        out = capsys.readouterr().out
+        assert 'hermes -c "My Cool Session" -p dev' in out
+        assert "hermes --resume 20260524_000001_abc123 -p dev" in out
+
+    def test_resume_hint_falls_back_when_profile_lookup_fails(self, capsys):
+        """If `get_active_profile_name` raises (e.g. profiles module
+        missing during ``hermes update`` mid-flight), fall back to no
+        flag rather than crashing the exit summary.
+        """
+        cli_obj = _make_cli()
+        with patch(
+            "hermes_cli.profiles.get_active_profile_name",
+            side_effect=RuntimeError("profiles unavailable"),
+        ):
+            cli_obj._print_exit_summary()
+        out = capsys.readouterr().out
+        # Resume hint still printed without -p.
+        assert "hermes --resume 20260524_000001_abc123" in out
+        assert " -p " not in out