def test_dataoverflow():
data = 'A' * 4296 # Version 40: max. 4296 alphanumeric chars
seq = segno.make_sequence(data, version=40)
assert 1 == len(seq)
data += 'B'
seq = segno.make_sequence(data, version=40)
assert 2 == len(seq)
def test_dataoverflow_error():
data = 'A' * 4296 * 16 # Version 40: max. 4296 alphanumeric chars * 16 symbols
data = data[:-4] # Remove some chars taking some SA overhead into account
seq = segno.make_sequence(data, version=40)
assert 16 == len(seq)
data += 'B'
with pytest.raises(segno.DataOverflowError) as ex:
segno.make_sequence(data, version=40)
assert 'does not fit' in str(ex.value)
def test_boosterror():
seq = segno.make_sequence('I read the news today oh boy / About a lucky man '
'who made the grade', version=2)
assert 3 == len(seq)
assert 'M' == seq[0].error
assert 'M' == seq[1].error
assert 'M' == seq[2].error
def test_boosterror2():
seq = segno.make_sequence('I read the news today oh boy / About a lucky man who made the grade', symbol_count=4)
assert 4 == len(seq)
assert '2-Q' == seq[0].designator
assert '2-Q' == seq[1].designator
assert '2-Q' == seq[2].designator
assert '2-Q' == seq[3].designator
def test_save_one():
directory = tempfile.mkdtemp()
assert 0 == len(os.listdir(directory))
seq = segno.make_sequence('ABC', version=1)
assert 1 == len(seq)
seq.save(os.path.join(directory, 'test.svg'))
number_of_files = len(os.listdir(directory))
shutil.rmtree(directory)
assert 1 == number_of_files
def test_save_terminal_multiple():
out_multiple = io.StringIO()
data = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ'
seq = segno.make_sequence(data, version=1, error='m')
assert 4 == len(seq)
seq.terminal(out_multiple)
out_single = io.StringIO()
for qr in seq:
qr.terminal(out_single)
assert out_single.getvalue() == out_multiple.getvalue()
def test_save_terminal_one():
out_multiple = io.StringIO()
data = 'QR Code Symbol'
seq = segno.make_sequence(data, version=1)
assert 1 == len(seq)
seq.terminal(out_multiple)
qr = segno.make_qr(data, version=1)
out_single = io.StringIO()
qr.terminal(out_single)
assert out_single.getvalue() == out_multiple.getvalue()
def test_encode_single():
# ISO/IEC 18004:2015(E) - page 7
# 'QR Code Symbol' as 1-M symbol
seq = segno.make_sequence('QR Code Symbol', version=1, error='M',
boost_error=False)
assert '1-M' == seq.designator
ref_matrix = read_matrix('iso-fig-1')
assert ref_matrix == seq.matrix
qr = seq[0]
assert '1-M' == qr.designator
ref_matrix = read_matrix('iso-fig-1')
assert ref_matrix == qr.matrix
def test_save_multiple():
directory = tempfile.mkdtemp()
assert 0 == len(os.listdir(directory))
seq = segno.make_sequence('ABCDEFGHIJKLMN'
'OPQRSTUVWXYZ0123'
'456789ABCDEFGHIJ'
'KLMNOPQRSTUVWXYZ', version=1, error='m')
assert 4 == len(seq)
seq.save(os.path.join(directory, 'test.svg'))
number_of_files = len(os.listdir(directory))
shutil.rmtree(directory)
assert 4 == number_of_files
def test_encode_multi_by_version_or_symbol_count(version, symbol_count):
# ISO/IEC 18004:2015(E) - page 60
seq = segno.make_sequence('ABCDEFGHIJKLMN'
'OPQRSTUVWXYZ0123'
'456789ABCDEFGHIJ'
'KLMNOPQRSTUVWXYZ',
version=version, symbol_count=symbol_count,
error='m', mask=4, boost_error=False)
assert 4 == len(seq)
ref_matrix = read_matrix('seq-iso-04-01')
assert ref_matrix == seq[0].matrix
ref_matrix = read_matrix('seq-iso-04-02')
assert ref_matrix == seq[1].matrix
ref_matrix = read_matrix('seq-iso-04-03')
assert ref_matrix == seq[2].matrix
ref_matrix = read_matrix('seq-iso-04-04')
assert ref_matrix == seq[3].matrix
def test_illegal_version():
with pytest.raises(segno.VersionError):
segno.make_sequence('ABCD', version='M4')
def test_illegal_symbolcount(symbol_count):
with pytest.raises(ValueError):
segno.make_sequence(
'I read the news today oh boy / About a lucky man who made the grade',
symbol_count=symbol_count)
def test_toomany_symbols():
with pytest.raises(ValueError):
segno.make_sequence('ABCDEF', symbol_count=16)
def test_boosterror_noop():
seq = segno.make_sequence('I read the news today oh boy', version=1)
assert 2 == len(seq)
assert 'L' == seq[0].error
assert 'L' == seq[1].error
def test_int():
data = int('1' * 42)
seq = segno.make_sequence(data, version=1)
assert 2 == len(seq)
def test_no_version_provided():
with pytest.raises(ValueError):
segno.make_sequence('A')
