def test_pad_lots_of_columns(columns_many):
"""Ensure edge case where there are more columns than would be normally expected are handled correctly"""
instance = _BaseVMC()
columns, max_column = instance.pad_columns(columns_many(1000, 5000))
assert max_column == 1000
for i in columns:
assert (len(i)) == 1000
def test_pad_last_column_empty(last_column_empty_2):
"""Ensure edge case where last column in empty is padded correctly"""
instance = _BaseVMC()
columns, max_column = instance.pad_columns(last_column_empty_2)
assert max_column == 2
for i in columns:
assert (len(i)) == 2
def test_pad_all_columns_empty(all_columns_empty):
"""Ensure edge case where all columns are empty can be handled"""
instance = _BaseVMC()
columns, max_column = instance.pad_columns(all_columns_empty)
assert max_column == 0
for i in columns:
assert (len(i)) == 0
def test_pad_columns_already_same(columns_same_length_4):
"""Ensure columns already the same length are not padded any further"""
instance = _BaseVMC()
columns, max_column = instance.pad_columns(columns_same_length_4)
assert max_column == 4
for i in columns:
assert (len(i)) == 4
def test_build_using_parametrized_fixture(padded_columns):
original_columns = padded_columns[0]
out_column_length = padded_columns[1]
num_cols = padded_columns[2]
instance = _BaseVMC(num_cols=num_cols)
rows = instance.build_new_rows(original_columns, out_column_length)
assert (
len(rows) == out_column_length
) # number of rows corresponds to max length of the original columns
for row in rows:
assert (
len(row) == instance.number_of_columns
) # each row contains the number of elements specified by the setting NUMBER_OF_COLUMNS
reversed_columns = []
for c in range(instance.number_of_columns):
col = [rows[r][c] for r in range(out_column_length)]
reversed_columns.append(col)
assert (
reversed_columns == original_columns
) # when "unbuilt" the result should be identical to the original columns
def test_pad_lots_of_columns(entries_0, columns_many):
instance = _BaseVMC()
columns, max_column = instance.pad_columns(columns_many(1000, 5000))
assert max_column == 1000
for i in columns:
assert (len(i)) == 1000
def test_pad_last_column_empty(entries_0, last_column_empty_2):
instance = _BaseVMC()
columns, max_column = instance.pad_columns(last_column_empty_2)
assert max_column == 2
for i in columns:
assert (len(i)) == 2
def test_pad_all_columns_empty(entries_0, all_columns_empty):
instance = _BaseVMC()
columns, max_column = instance.pad_columns(all_columns_empty)
assert max_column == 0
for i in columns:
assert (len(i)) == 0
def test_pad_first_column_empty(entries_0, first_column_empty_5):
instance = _BaseVMC()
columns, max_column = instance.pad_columns(first_column_empty_5)
assert max_column == 5
for i in columns:
assert (len(i)) == 5
def test_pad_columns_already_same(entries_0, columns_same_length_4):
instance = _BaseVMC()
columns, max_column = instance.pad_columns(columns_same_length_4)
assert max_column == 4
for i in columns:
assert (len(i)) == 4