def engine_choices():
"""Returns a dict mapping command-line options to functions that return an
engine
"""
choices = {'libdmtx': LibDMTXEngine,
'zbar': ZbarEngine,
'zxing': ZxingEngine,
}
choices = {k:v for k,v in choices.iteritems() if v.available()}
if AccusoftEngine.available():
choices.update({'accusoft-1d': partial(AccusoftEngine, datamatrix=False),
'accusoft-dm': partial(AccusoftEngine, datamatrix=True),
})
if DataSymbolEngine.available():
choices.update({'datasymbol-1d': partial(DataSymbolEngine, datamatrix=False),
'datasymbol-dm': partial(DataSymbolEngine, datamatrix=True),
})
if DTKEngine.available():
choices.update({'dtk-1d': partial(DTKEngine, datamatrix=False),
'dtk-dm': partial(DTKEngine, datamatrix=True),
})
if InliteEngine.available():
choices.update({'inlite-1d': partial(InliteEngine, format='1d'),
'inlite-dm': partial(InliteEngine, format='datamatrix'),
'inlite-pdf417': partial(InliteEngine, format='pdf417'),
'inlite-qrcode': partial(InliteEngine, format='qrcode'),
})
if StecosEngine.available():
choices.update({'stecos-1d' : partial(StecosEngine, datamatrix=False),
'stecos-dm' : partial(StecosEngine, datamatrix=True),
})
if SoftekEngine.available():
choices.update({'softek-1d': partial(SoftekEngine, datamatrix=False),
'softek-dm': partial(SoftekEngine, datamatrix=True),
})
return choices
self.assertEqual([], engine(self.NOBARCODE))
def _test_qr(self, engine, type='QR Code'):
expected = [Barcode(type=type, data=u'Thalassiodracon')]
res = engine(self.QRCODE)
self.assertEqual(expected, res)
self.assertEqual([], engine(self.NOBARCODE))
def _test_pdf417(self, engine, type='PDF 417'):
expected = [Barcode(type=type, data=u'Metasequoia')]
res = engine(self.PDF417)
self.assertEqual(expected, res)
self.assertEqual([], engine(self.NOBARCODE))
@unittest.skipUnless(AccusoftEngine.available(), 'AccusoftEngine unavailable')
class TestAccusoftEngine(TestEngine):
def test_1d(self):
self._test_1d(AccusoftEngine(datamatrix=False), type='Code 128')
def test_dm(self):
self._test_dm(AccusoftEngine(datamatrix=True), type='DataMatrix')
@unittest.skipUnless(DataSymbolEngine.available(), 'DataSymbolEngine unavailable')
class TestDataSymbolEngine(TestEngine):
# Evaluation SDK replaces the last three characters of the
# decoded value with 'DEMO', so this test needs to do some extra work.
def test_1d(self):
res = DataSymbolEngine(datamatrix=False)(self.CODE128)
self.assertEqual(1, len(res))
