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from pocketbook.app import ToggleStateMachine, EscapeStateMachine, navigate
class TestToggleStateMachine:
def test_initial_state_visible(self):
sm = ToggleStateMachine(start_hidden=False)
assert sm.visible is True
def test_initial_state_hidden(self):
sm = ToggleStateMachine(start_hidden=True)
assert sm.visible is False
def test_toggle_alternates(self):
sm = ToggleStateMachine(start_hidden=False)
assert sm.visible is True
sm.toggle()
assert sm.visible is False
sm.toggle()
assert sm.visible is True
def test_toggle_from_hidden(self):
sm = ToggleStateMachine(start_hidden=True)
assert sm.visible is False
sm.toggle()
assert sm.visible is True
sm.toggle()
assert sm.visible is False
class TestEscapeStateMachine:
def test_escape_while_editing_returns_exit_edit(self):
esc = EscapeStateMachine()
toggle = ToggleStateMachine(start_hidden=False)
action = esc.escape(is_editing=True, toggle=toggle)
assert action == "exit_edit"
# Toggle state should not change
assert toggle.visible is True
def test_escape_while_browsing_returns_hide(self):
esc = EscapeStateMachine()
toggle = ToggleStateMachine(start_hidden=False)
action = esc.escape(is_editing=False, toggle=toggle)
assert action == "hide"
assert toggle.visible is False
def test_escape_edit_then_browse_hides(self):
"""Simulates: editing → Escape (exit edit) → Escape (hide)."""
esc = EscapeStateMachine()
toggle = ToggleStateMachine(start_hidden=False)
# First escape: exit edit mode
action1 = esc.escape(is_editing=True, toggle=toggle)
assert action1 == "exit_edit"
assert toggle.visible is True
# Second escape: now in browse mode, hide panel
action2 = esc.escape(is_editing=False, toggle=toggle)
assert action2 == "hide"
assert toggle.visible is False
def test_escape_hide_does_not_change_when_already_hidden(self):
esc = EscapeStateMachine()
toggle = ToggleStateMachine(start_hidden=True)
assert toggle.visible is False
action = esc.escape(is_editing=False, toggle=toggle)
assert action == "hide"
# Toggled again — now visible (edge case if called when hidden)
assert toggle.visible is True
class TestNavigate:
def test_no_notes(self):
assert navigate(None, 0, 1) is None
assert navigate(None, 0, -1) is None
def test_no_focus_next_goes_to_first(self):
assert navigate(None, 3, 1) == 0
def test_no_focus_prev_goes_to_last(self):
assert navigate(None, 3, -1) == 2
def test_next_from_middle(self):
assert navigate(1, 3, 1) == 2
def test_prev_from_middle(self):
assert navigate(1, 3, -1) == 0
def test_next_clamps_at_end(self):
assert navigate(2, 3, 1) == 2
def test_prev_clamps_at_start(self):
assert navigate(0, 3, -1) == 0
def test_single_note(self):
assert navigate(0, 1, 1) == 0
assert navigate(0, 1, -1) == 0
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