def test_correct_number_columns_are_passed(columns_4,
settings_number_of_columns_4): # pylint: disable=unused-argument
"""Test that the correct numbers of columns does not raise an error"""
instance = DefinedVMCView()
rows = instance.process_columns(columns_4)
num_cols = len(rows[0])
assert num_cols == 4
def test_same_data_after_processing(columns_2, settings_NUMBER_OF_COLUMNS_2):
instance = DefinedVMCView()
rows = instance.process_columns(columns_2)
gen_columns_from_rows = []
for c in range(len(rows)):
column = []
for r in rows[c]:
column.append(r)
gen_columns_from_rows.append(column)
assert gen_columns_from_rows == rows
def test_same_data_after_processing(columns_2, settings_number_of_columns_2): # pylint: disable=unused-argument
"""Test that the original data can be reconstructed from the processed data, proving the processing worked """
instance = DefinedVMCView()
rows = instance.process_columns(columns_2)
gen_columns_from_rows = []
num_columns = len(rows)
for col in range(num_columns):
column = []
for row in rows[col]:
column.append(row)
gen_columns_from_rows.append(column)
assert gen_columns_from_rows == rows
def test_too_many_columns_are_passed(columns_4, settings_number_of_columns_3): # pylint: disable=unused-argument
"""An error is raised if too many columns are raised"""
instance = DefinedVMCView()
with pytest.raises(ImproperlyConfigured):
instance.process_columns(columns_4)
def test_no_columns_are_passed(settings_number_of_columns_3): # pylint: disable=unused-argument
"""An error is raised if there are no columns passed"""
instance = DefinedVMCView()
with pytest.raises(ImproperlyConfigured):
instance.process_columns(None)
def test_no_columns_are_passed(settings_NUMBER_OF_COLUMNS_3):
# The number of columns passed must correspond to the columns setting
instance = DefinedVMCView()
with pytest.raises(ImproperlyConfigured):
instance.process_columns(None)
def test_correct_number_columns_are_passed(columns_4,
settings_NUMBER_OF_COLUMNS_4):
instance = DefinedVMCView()
rows = instance.process_columns(columns_4)
num_cols = len(rows[0])
assert num_cols == 4