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test.py
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# -*- coding: utf-8 -*-
from __future__ import unicode_literals, print_function
"""
Performs some tests with pyBarcode. All created barcodes where saved in the
tests subdirectory with a tests.html to watch them.
"""
__docformat__ = 'restructuredtext en'
import codecs
import os
import sys
import unittest
from barcode import get_barcode, get_barcode_class, version
try:
from barcode.writer import ImageWriter
except ImportError:
ImageWriter = None # lint:ok
PATH = os.path.dirname(os.path.abspath(__file__))
TESTPATH = os.path.join(PATH, 'tests')
HTMLFILE = os.path.join(TESTPATH, 'index.html')
HTML = """<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>pyBarcode {version} Test</title>
</head>
<body>
<h1>pyBarcode {version} Tests</h1>
{body}
</body>
</html>
"""
OBJECTS = ('<p><h2>{name}</h2><br>\n'
'<img src="{filename}" alt="SVG {name}">\n')
IMAGES = ('<h3>As PNG-Image</h3><br>\n'
'<img src="{filename}" alt="PNG {name}"></p>\n')
NO_PIL = '<h3>Pillow was not found. No PNG-Image created.</h3></p>\n'
TESTCODES = (
('ean8', '40267708'),
('ean13', '5901234123457'),
('ean14', '12345678911230'),
('upca', '36000291453'),
('jan', '4901234567894'),
('isbn10', '3-12-517154-7'),
('isbn13', '978-3-16-148410-0'),
('issn', '1144875X'),
('code39', 'Example Code 39'),
('pzn', '487780'),
('code128', 'Example Code 128 998866'),
('itf', '12341234'),
)
def test():
if not os.path.isdir(TESTPATH):
try:
os.mkdir(TESTPATH)
except OSError as e:
print('Test not run.')
print('Error:', e)
sys.exit(1)
objects = []
append = lambda x, y: objects.append(OBJECTS.format(filename=x, name=y))
append_img = lambda x, y: objects.append(IMAGES.format(filename=x, name=y))
options = dict(module_width=0.495, module_height=25.0)
for codename, code in TESTCODES:
bcode = get_barcode(codename, code)
if codename.startswith('i'):
options['center_text'] = False
else:
options['center_text'] = True
filename = bcode.save(os.path.join(TESTPATH, codename),
options=options)
print('Code: {0}, Input: {1}, Output: {2}'.format(
bcode.name, code, bcode.get_fullcode()))
append(os.path.basename(filename), bcode.name)
if ImageWriter is not None:
bcodec = get_barcode_class(codename)
bcode = bcodec(code, writer=ImageWriter())
opts = dict(font_size=14, text_distance=1)
if codename.startswith('i'):
opts['center_text'] = False
else:
opts['center_text'] = True
filename = bcode.save(os.path.join(TESTPATH, codename),
options=opts)
append_img(os.path.basename(filename), bcode.name)
else:
objects.append(NO_PIL)
# Save htmlfile with all objects
with codecs.open(HTMLFILE, 'w', encoding='utf-8') as f:
obj = '\n'.join(objects)
f.write(HTML.format(version=version, body=obj))
class TestBarcodeBuilds(unittest.TestCase):
def test_ean8(self):
ref = ('1010100011000110100100110101111010101000100'
'100010011100101001000101')
ean = get_barcode('ean8', '40267708')
bc = ean.build()
self.assertEqual(ref, bc[0])
class TestChecksums(unittest.TestCase):
def test_code39(self):
code39 = get_barcode('code39', 'Code39')
self.assertEqual('CODE39W', code39.get_fullcode())
def test_pzn(self):
pzn = get_barcode('pzn', '103940')
self.assertEqual('PZN-1039406', pzn.get_fullcode())
def test_ean13(self):
ean = get_barcode('ean13', '400614457735')
self.assertEqual('4006144577350', ean.get_fullcode())
def test_ean8(self):
ean = get_barcode('ean8', '6032299')
self.assertEqual('60322999', ean.get_fullcode())
def test_jan(self):
jan = get_barcode('jan', '491400614457')
self.assertEqual('4914006144575', jan.get_fullcode())
def test_ean14(self):
ean = get_barcode('ean14', '1234567891258')
self.assertEqual('12345678912589', ean.get_fullcode())
def test_isbn10(self):
isbn = get_barcode('isbn10', '376926085')
self.assertEqual('3769260856', isbn.isbn10)
def test_isbn13(self):
isbn = get_barcode('isbn13', '978376926085')
self.assertEqual('9783769260854', isbn.get_fullcode())
def test_gs1_128(self):
gs1_128 = get_barcode('gs1_128', '00376401856400470087')
self.assertEqual('00376401856400470087', gs1_128.get_fullcode())
if __name__ == '__main__':
test()
print('\nNow open {htmlfile} in your browser.'.format(htmlfile=HTMLFILE))
if '-v' not in sys.argv:
sys.argv.append('-v')
unittest.main()