from feapder.core.runtime_state import RuntimeState

def test_runtime_state_starts_idle_and_running():

state = RuntimeState()

assert state.is_idle is True

assert state.is_stop_requested is False

assert state.busy_count == 0

def test_runtime_state_tracks_busy_count():

state = RuntimeState()

state.mark_busy()

state.mark_busy()

assert state.is_idle is False

assert state.busy_count == 2

state.mark_idle()

state.mark_idle()

assert state.is_idle is True

assert state.busy_count == 0

def test_runtime_state_does_not_go_negative():

state = RuntimeState()

state.mark_idle()

assert state.busy_count == 0

assert state.is_idle is True

def test_runtime_state_busy_context_resets_on_exception():

state = RuntimeState()

try:

with state.busy():

assert state.is_idle is False

raise RuntimeError("boom")

except RuntimeError:

pass

assert state.is_idle is True

def test_runtime_state_stop_request_is_sticky():

state = RuntimeState()

state.request_stop()

state.request_stop()

assert state.is_stop_requested is True