def test_left_key_returns_none(self):
""" A Listbox shouldn't return anything when LEFT is pressed"""
num_elements = 3
contents = [["A" + str(i), "a" + str(i)] for i in range(num_elements)]
lb = Listbox(contents,
get_mock_input(),
get_mock_output(),
name=lb_name,
config={})
lb.refresh = lambda *args, **kwargs: None
# Checking at the start of the list
def scenario():
lb.deactivate() # KEY_LEFT
assert not lb.in_foreground
with patch.object(lb, 'idle_loop', side_effect=scenario) as p:
return_value = lb.activate()
assert return_value is None
# Checking at the end of the list
def scenario():
for i in range(num_elements):
lb.move_down() # KEY_DOWN x3
lb.deactivate() # KEY_LEFT
assert not lb.in_foreground
with patch.object(lb, 'idle_loop', side_effect=scenario) as p:
return_value = lb.activate()
assert return_value is None
def returns_on_enter_runner(self, contents, num_elements, exp_return1,
exp_return2):
lb = Listbox(contents,
get_mock_input(),
get_mock_output(),
name=lb_name,
config={})
lb.refresh = lambda *args, **kwargs: None
# Checking at the start of the list
def scenario():
lb.select_entry() # KEY_ENTER
assert not lb.in_foreground
with patch.object(lb, 'idle_loop', side_effect=scenario) as p:
return_value = lb.activate()
assert return_value == exp_return1
# Checking at the end of the list
def scenario():
for i in range(num_elements - 1):
lb.move_down() # KEY_DOWN x2
lb.select_entry() # KEY_ENTER
assert not lb.in_foreground
with patch.object(lb, 'idle_loop', side_effect=scenario) as p:
return_value = lb.activate()
assert return_value == exp_return2
def selected_single_el_entry_runner(self, contents, selected):
lb = Listbox(contents,
get_mock_input(),
get_mock_output(),
selected=selected,
name=lb_name,
config={})
lb.refresh = lambda *args, **kwargs: None
# Checking at the start of the list
def scenario():
lb.select_entry() # KEY_ENTER
assert not lb.in_foreground
with patch.object(lb, 'idle_loop', side_effect=scenario) as p:
return_value = lb.activate()
assert return_value == selected
def test_left_key_works_when_not_exitable(self):
"""Listbox should still exit on KEY_LEFT when exitable is set to False"""
num_elements = 3
contents = [["A" + str(i), "a" + str(i)] for i in range(num_elements)]
lb = Listbox(contents,
get_mock_input(),
get_mock_output(),
name=lb_name,
config={})
lb.refresh = lambda *args, **kwargs: None
def scenario():
assert "KEY_LEFT" in lb.keymap
lb.deactivate()
assert not lb.in_foreground
with patch.object(lb, 'idle_loop', side_effect=scenario) as p:
lb.activate()
