def test_is_parsable_good_header():
"""Is a file with a good filename and header accepted?"""
data = ",".join(ParserImpl.field_names())
file_prefix = ParserImpl.file_prefix()
with temp_data(prefix=file_prefix, suffix=".csv", data=data) as file:
assert ParserImpl.is_file_parsable(file) == True
def test_is_parsable_bad_contents():
"""Is a file with bad header contents rejected?"""
data = "this,is,the,wrong,header"
with temp_data(prefix=None, suffix=".csv", data=data) as file:
assert ParserImpl.check_header(file, row=0) == False
assert ParserImpl.is_file_parsable(file) == False
def temp_valid_input_file():
with temp_data(prefix=ParserImpl.file_prefix(),
suffix='.csv',
data=FAKE_TRANSACTIONS) as file_name:
yield file_name
def test_parse_reject():
"""Does the `parse` function reject a bad file?"""
with pytest.raises(ValueError):
data = "this,is,the,wrong,header"
with temp_data(prefix=None, suffix=".csv", data=data) as file:
parser = ParserImpl(file)
parser.parse()
def test_check_header_read_file():
"""Is a good header accepted?"""
data = ",".join(ParserImpl.field_names())
file_prefix = ParserImpl.file_prefix()
with temp_data(prefix=file_prefix, suffix=".csv", data=data) as file:
assert ParserImpl.check_header(file, header=data, row=0) == True
assert ParserImpl.is_file_parsable(file) == True
def test_is_file_parsable_reject():
"""Does a file with bad contents get rejected?"""
data = FAKE_USAA_BAD_LINE
with temp_data(prefix=None, suffix=".csv", data=data) as path:
assert not Usaa.is_file_parsable(path)
def test_is_parsable_bad_filename():
"""Is a bad filename rejected?"""
with temp_data(prefix="invalid_prefix") as file:
assert ParserImpl.is_file_parsable(file) == False