Integration tests: embedded mode

Work item: issue-17 · testing-plan row T2 · commit cdd0785 · run 2026-10-10 on Linux (Python 3.14, temporalio 1.34.0, Temporal CLI 1.9.1).

The embedded scenarios against the real dev server

env -u TEMPORAL_API_KEY uv run pytest tests/integration/embedded -v --basetemp ~/.cache/tiny-harness-pytest/run 2>&1 | grep -E 'PASSED|FAILED|ERROR|SKIPPED|passed|failed'

Exit status 0 in 27.5 s.

tests/integration/embedded/test_cli_embedded.py::test_tui_hosts_its_own_harness_in_embedded_mode PASSED [  6%]
tests/integration/embedded/test_cli_embedded.py::test_tui_with_a_url_starts_no_embedded_server PASSED [ 13%]
tests/integration/embedded/test_cli_embedded.py::test_admin_commands_act_on_persisted_embedded_state PASSED [ 20%]
tests/integration/embedded/test_cli_embedded.py::test_sigterm_to_serve_in_embedded_mode_leaves_no_dev_server PASSED [ 26%]
tests/integration/embedded/test_embedded_temporal.py::test_embedded_mode_starts_without_temporal_credentials PASSED [ 33%]
tests/integration/embedded/test_embedded_temporal.py::test_embedded_server_binds_loopback_only PASSED [ 40%]
tests/integration/embedded/test_embedded_temporal.py::test_embedded_server_stops_when_the_harness_exits[normal] PASSED [ 46%]
tests/integration/embedded/test_embedded_temporal.py::test_embedded_server_stops_when_the_harness_exits[exception] PASSED [ 53%]
tests/integration/embedded/test_embedded_temporal.py::test_embedded_server_stops_when_the_harness_exits[cancellation] PASSED [ 60%]
tests/integration/embedded/test_embedded_temporal.py::test_embedded_state_survives_a_restart PASSED [ 66%]
tests/integration/embedded/test_embedded_temporal.py::test_a_second_process_cannot_open_the_same_embedded_state PASSED [ 73%]
tests/integration/embedded/test_embedded_temporal.py::test_an_in_process_second_owner_is_refused_too PASSED [ 80%]
tests/integration/embedded/test_embedded_temporal.py::test_startup_time PASSED [ 86%]
tests/integration/embedded/test_running_harness.py::test_programmatic_harness_runs_a_task_in_embedded_mode PASSED [ 93%]
tests/integration/embedded/test_running_harness.py::test_embedded_server_registers_search_attributes_and_the_heartbeat_schedule PASSED [100%]
======================= 15 passed, 10 warnings in 23.22s =======================

Scenario table

the-loop scenarios --root "$PWD" --glob 'tests/integration/embedded/*.py' --format markdown

Exit status 0 in 0.4 s.

#	Feature	Scenario	Requirement	Location
1	Embedded Temporal mode	TUI hosts its own harness in embedded mode	docs/specs/issue-17/requirements.md#R5	tests/integration/embedded/test_cli_embedded.py:68
2	Embedded Temporal mode	TUI with a URL starts no embedded server	docs/specs/issue-17/requirements.md#R5	tests/integration/embedded/test_cli_embedded.py:114
3	Embedded Temporal mode	Admin commands act on persisted embedded state	docs/specs/issue-17/requirements.md#R5	tests/integration/embedded/test_cli_embedded.py:143
4	Embedded Temporal mode	Embedded server stops when serve receives SIGTERM	docs/specs/issue-17/requirements.md#R2	tests/integration/embedded/test_cli_embedded.py:177
5	Embedded Temporal mode	Embedded mode starts without Temporal credentials	docs/specs/issue-17/requirements.md#R1	tests/integration/embedded/test_embedded_temporal.py:149
6	Embedded Temporal mode	Embedded server binds loopback only	docs/specs/issue-17/requirements.md#R2	tests/integration/embedded/test_embedded_temporal.py:167
7	Embedded Temporal mode	Embedded server stops when the harness exits	docs/specs/issue-17/requirements.md#R2	tests/integration/embedded/test_embedded_temporal.py:197
8	Embedded Temporal mode	Embedded state survives a restart	docs/specs/issue-17/requirements.md#R3	tests/integration/embedded/test_embedded_temporal.py:230
9	Embedded Temporal mode	A second process cannot open the same embedded state	docs/specs/issue-17/design.md#security-design	tests/integration/embedded/test_embedded_temporal.py:263
10	Embedded Temporal mode	Programmatic harness runs a task in embedded mode	docs/specs/issue-17/requirements.md#R6	tests/integration/embedded/test_running_harness.py:71
11	Embedded Temporal mode	Embedded server registers search attributes and the heartbeat schedule	docs/specs/issue-17/requirements.md#R2	tests/integration/embedded/test_running_harness.py:97