def test_get_remove_data_length():
line = pymatrix.SingleLine(5, 20, 6, False)
line.length = 3
line.data = [(0, "T"), (1, "T"), (2, "T")]
rm = line.get_remove()
assert len(line.data) == 2
assert rm == (0, 5, " ")
def test_increment_reverse():
line = pymatrix.SingleLine(5, 20, 20, True)
line.increment()
assert line.lead_y == 16
assert line.y == 17
line.increment()
assert line.lead_y == 15
assert line.y == 16
def test_increment():
line = pymatrix.SingleLine(5, 20, 20, False)
line.increment()
assert line.lead_y == 1
assert line.y == 0
line.increment()
assert line.lead_y == 2
assert line.y == 1
def test_get_remove_past_height():
line = pymatrix.SingleLine(5, 20, 6, False)
line.length = 5
line.y = 5
line.data = [(4, "T"), (5, "T")]
rm = line.get_remove()
assert len(line.data) == 1
assert rm == (4, 5, " ")
def test_get_new():
line = pymatrix.SingleLine(5, 20, 20, False)
new = line.get_new()
assert new is None
line.increment()
with mock.patch.object(pymatrix, "choice", return_value="T"):
line.add_char()
new = line.get_new()
assert new == (0, 5, "T")
def test_add_char():
line = pymatrix.SingleLine(5, 20, 20, False)
line.add_char()
assert len(line.data) == 0
line.increment()
with mock.patch.object(pymatrix, "choice", return_value="T"):
line.add_char()
assert len(line.data) == 1
assert line.data == [(0, "T")]
def test_async_scroll_turn():
line = pymatrix.SingleLine(5, 20, 20, False)
line.async_scroll_rate = 1
result = line.async_scroll_turn()
assert result is False
result = line.async_scroll_turn()
assert result is True
result = line.async_scroll_turn()
assert result is False
def test_get_lead_reverse():
line = pymatrix.SingleLine(5, 20, 6, True)
with mock.patch.object(pymatrix, "choice", return_value="T"):
lead = line.get_lead()
assert lead == (3, 5, "T")
for _ in range(6):
line.increment()
lead = line.get_lead()
assert lead is None
def test_add_char_reverse():
line = pymatrix.SingleLine(5, 20, 20, True)
with mock.patch.object(pymatrix, "choice", return_value="T"):
line.add_char()
assert len(line.data) == 1
line.increment()
with mock.patch.object(pymatrix, "choice", return_value="T"):
line.add_char()
assert len(line.data) == 2
assert line.data == [(18, "T"), (17, "T")]
def test_increment_past_height():
line = pymatrix.SingleLine(5, 20, 6, False)
for _ in range(5):
line.increment()
assert line.lead_y == 5
assert line.y == 4
line.increment()
assert line.lead_y == 5
assert line.y == 5
line.increment()
assert line.lead_y == 5
assert line.y == 5
def test_get_remove_first_loop_reverse():
line = pymatrix.SingleLine(5, 20, 6, True)
line.add_char()
rm = line.get_remove()
assert rm is None
