def test_check_filter():
# No filter gives 'None'
assert check_filter(()) is None
assert check_filter(False) is None
assert check_filter(None) is None
# The check filter always returns floats
assert check_filter([(6, 7)]) == [(6.0, 7.0)]
assert check_filter([(6, 7), (2, 8)]) == [(6.0, 7.0), (2.0, 8.0)]
# Invalid ranges get a ValueError
with raises(ValueError) as err:
check_filter([(7, 2)])
assert str(err.value) == 'Error in --filter: low >= high'
def test_check_filter_raises_ValueError_if_filter_is_invalid(x, y):
assume(any(float(i) >= float(j) for i, j in zip(x, y)))
with raises(ValueError) as err:
check_filter(list(zip(x, y)))
assert str(err.value) == 'Error in --filter: low >= high'
def test_check_filter_raises_ValueError_if_filter_is_invalid_example():
with raises(ValueError) as err:
check_filter([(7, 2)])
assert str(err.value) == 'Error in --filter: low >= high'
def test_check_filter_converts_filter_numbers_to_floats_if_filter_is_valid(x, y):
assume(all(float(i) < float(j) for i, j in zip(x, y)))
assert check_filter(list(zip(x, y))) == [(float(i), float(j)) for i, j in zip(x, y)]
def test_check_filter_converts_filter_numbers_to_floats_if_filter_is_valid_example():
assert check_filter([(6, 7)]) == [(6.0, 7.0)]
assert check_filter([(6, 7), (2, 8)]) == [(6.0, 7.0), (2.0, 8.0)]
def test_check_filter_returns_None_if_filter_evaluates_to_False():
assert check_filter(()) is None
assert check_filter(False) is None
assert check_filter(None) is None
def test_check_filter_raises_ValueError_if_filter_is_invalid(x, data):
y = [data.draw(integers(max_value=val))
for val in x] # ensure y is element-wise less than or equal to x
with raises(ValueError) as err:
check_filter(list(zip(x, y)))
assert str(err.value) == 'Error in --filter: low >= high'
def test_check_filter_raises_ValueError_if_filter_is_invalid_example():
with raises(ValueError) as err:
check_filter([(7, 2)])
assert str(err.value) == 'Error in --filter: low >= high'
def test_check_filter_returns_input_as_is_if_filter_is_valid(x, data):
y = [data.draw(integers(min_value=val + 1))
for val in x] # ensure y is element-wise greater than x
assert check_filter(list(zip(x, y))) == [(i, j) for i, j in zip(x, y)]
def test_check_filter_returns_input_as_is_if_filter_is_valid_example():
assert check_filter([(6, 7)]) == [(6, 7)]
assert check_filter([(6, 7), (2, 8)]) == [(6, 7), (2, 8)]
def test_check_filter_returns_None_if_filter_evaluates_to_False():
assert check_filter(()) is None
assert check_filter(False) is None
assert check_filter(None) is None
def test_check_filter_raises_ValueError_if_filter_is_invalid(x, y):
assume(any(i >= j for i, j in zip(x, y)))
with raises(ValueError) as err:
check_filter(list(zip(x, y)))
assert str(err.value) == 'Error in --filter: low >= high'
def test_check_filter_converts_filter_numbers_to_floats_if_filter_is_valid(
x, y):
assume(all(i < j for i, j in zip(x, y)))
assert check_filter(list(zip(x, y))) == [(float(i), float(j))
for i, j in zip(x, y)]
def test_check_filter_converts_filter_numbers_to_floats_if_filter_is_valid_example(
):
assert check_filter([(6, 7)]) == [(6.0, 7.0)]
assert check_filter([(6, 7), (2, 8)]) == [(6.0, 7.0), (2.0, 8.0)]
