def test_fetch_and_prep_pointer_blocks_raises_ValueError_if_original_data_size_not_an_int(
):
driver = StepEntangler(MockSource(),
1,
10,
3,
ec_type="liberasurecode_rs_vand")
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks([], 42, None)
assert str(
excinfo.value
) == "original_data_size argument must be an integer greater than 0"
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks([], 42, 42.42)
assert str(
excinfo.value
) == "original_data_size argument must be an integer greater than 0"
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks([], 42, "Hello, World!")
assert str(
excinfo.value
) == "original_data_size argument must be an integer greater than 0"
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks([], 42, {})
assert str(
excinfo.value
) == "original_data_size argument must be an integer greater than 0"
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks([], 42, [])
assert str(
excinfo.value
) == "original_data_size argument must be an integer greater than 0"
def test_fetch_and_prep_pointer_blocks_raises_ValueError_if_original_data_size_is_lower_than_frangment_size(
):
driver = StepEntangler(MockSource(),
1,
10,
3,
ec_type="liberasurecode_rs_vand")
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks([], 43, 42)
assert str(
excinfo.value
) == "original_data_size must be greater or equal to fragment_size"
def test_fetch_and_prep_pointer_blocks_raises_ValueError_if_fragment_size_lower_or_equal_to_0(
):
driver = StepEntangler(MockSource(),
1,
10,
3,
ec_type="liberasurecode_rs_vand")
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks([], -1, 1000)
assert str(excinfo.value
) == "fragment_size argument must be an integer greater than 0"
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks([], 0, 1000)
assert str(excinfo.value
) == "fragment_size argument must be an integer greater than 0"
def test_fetch_and_prep_pointer_blocks_returns_None_for_blocks_that_cannot_fetch(
):
source = FailingSource()
driver = StepEntangler(source, 1, 10, 3, ec_type="liberasurecode_rs_vand")
prepped_pointers = driver.fetch_and_prep_pointer_blocks(
[["non-existing", 42]], 42, 42)
assert isinstance(prepped_pointers, list)
assert len(prepped_pointers) == 1
assert prepped_pointers[0] is None
def test_fetch_and_prep_pointer_blocks_returns_empty_list_for_empty_pointers():
driver = StepEntangler(MockSource(),
1,
10,
3,
ec_type="liberasurecode_rs_vand")
prepped_pointers = driver.fetch_and_prep_pointer_blocks([], 42, 42)
assert isinstance(prepped_pointers, list)
assert len(prepped_pointers) == 0
def test_fetch_and_prep_pointer_blocks_raises_ValueError_if_pointers_not_list(
):
driver = StepEntangler(MockSource(),
1,
10,
3,
ec_type="liberasurecode_rs_vand")
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks(None, 42, 1000)
assert str(excinfo.value) == "pointers argument must be of type list"
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks(1, 42, 1000)
assert str(excinfo.value) == "pointers argument must be of type list"
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks("hello world", 42, 1000)
assert str(excinfo.value) == "pointers argument must be of type list"
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks({}, 42, 1000)
assert str(excinfo.value) == "pointers argument must be of type list"
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks(MockSource(), 42, 1000)
assert str(excinfo.value) == "pointers argument must be of type list"
def test_fetch_and_prep_pointer_blocks_raises_ValueError_if_fragment_size_not_an_int(
):
driver = StepEntangler(MockSource(),
1,
10,
3,
ec_type="liberasurecode_rs_vand")
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks([], None, 1000)
assert str(excinfo.value
) == "fragment_size argument must be an integer greater than 0"
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks([], 42.42, 1000)
assert str(excinfo.value
) == "fragment_size argument must be an integer greater than 0"
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks([], "hello world", 1000)
assert str(excinfo.value
) == "fragment_size argument must be an integer greater than 0"
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks([], {}, 1000)
assert str(excinfo.value
) == "fragment_size argument must be an integer greater than 0"
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks([], [], 1000)
assert str(excinfo.value
) == "fragment_size argument must be an integer greater than 0"
with pytest.raises(ValueError) as excinfo:
driver.fetch_and_prep_pointer_blocks([], [], 1000)
assert str(excinfo.value
) == "fragment_size argument must be an integer greater than 0"