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from operator import truediv
from random import randint, random
import pytest
from term_image import AutoCellRatio, get_cell_ratio, set_cell_ratio
from term_image.exceptions import TermImageError
from . import reset_cell_size_ratio, set_cell_size
class TestCellRatio:
@reset_cell_size_ratio()
def test_args(self):
for value in (0, "1", ()):
with pytest.raises(TypeError):
set_cell_ratio(value)
for value in (0.0, -0.1, -1.0):
with pytest.raises(ValueError):
set_cell_ratio(value)
set_cell_size(None)
for value in AutoCellRatio:
with pytest.raises(TermImageError):
set_cell_ratio(value)
@reset_cell_size_ratio()
def test_fixed(self):
for value in (0.01, 0.1, 0.9, 0.99, 1.0, 2.0):
set_cell_ratio(value)
assert get_cell_ratio() == value
for _ in range(20):
value = random()
set_cell_ratio(value)
assert get_cell_ratio() == value
@reset_cell_size_ratio()
def test_fixed_auto(self):
set_cell_size((4, 9))
set_cell_ratio(AutoCellRatio.FIXED)
assert get_cell_ratio() == 4 / 9 == get_cell_ratio()
for _ in range(20):
cell_size = (randint(1, 20), randint(1, 20))
set_cell_size(cell_size)
set_cell_ratio(AutoCellRatio.FIXED)
assert get_cell_ratio() == truediv(*cell_size) == get_cell_ratio()
set_cell_size((0, 1))
assert get_cell_ratio() == truediv(*cell_size)
@reset_cell_size_ratio()
def test_dynamic_auto(self):
set_cell_size((4, 9))
set_cell_ratio(AutoCellRatio.DYNAMIC)
assert get_cell_ratio() == 4 / 9 == get_cell_ratio()
for _ in range(20):
cell_size = (randint(1, 20), randint(1, 20))
set_cell_size(cell_size)
assert get_cell_ratio() == truediv(*cell_size) == get_cell_ratio()
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