Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/zxing-cpp/wrappers/python/test.py @ 46:7ee69f120f19 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
>>>>> tag v1.26.5+1 for changeset b74429b0f5c4
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 17:17:30 +0200
parents b50eed0cc0ef
children
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2
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1 import importlib.util
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2 import unittest
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3 import math
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4 import platform
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5
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6 import zxingcpp
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7
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8 has_numpy = importlib.util.find_spec('numpy') is not None
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9 has_pil = importlib.util.find_spec('PIL') is not None
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10 has_cv2 = importlib.util.find_spec('cv2') is not None
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11
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12 BF = zxingcpp.BarcodeFormat
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13 CT = zxingcpp.ContentType
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14
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15 class TestFormat(unittest.TestCase):
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17 def test_format(self):
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18 self.assertEqual(zxingcpp.barcode_format_from_str('qrcode'), BF.QRCode)
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19 self.assertEqual(zxingcpp.barcode_formats_from_str('ITF, qrcode'), BF.ITF | BF.QRCode)
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20
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22 class TestReadWrite(unittest.TestCase):
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23
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24 def check_res(self, res, format, text):
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25 self.assertTrue(res.valid)
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26 self.assertEqual(res.format, format)
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27 self.assertEqual(res.text, text)
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28 self.assertEqual(res.bytes, bytes(text, 'utf-8'))
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29 self.assertEqual(res.orientation, 0)
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30 self.assertEqual(res.content_type, CT.Text)
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32 def test_write_read_cycle(self):
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33 format = BF.QRCode
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34 text = "I have the best words."
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35 img = zxingcpp.write_barcode(format, text)
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36
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37 res = zxingcpp.read_barcode(img)
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38 self.check_res(res, format, text)
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39 self.assertEqual(res.symbology_identifier, "]Q1")
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40 # self.assertEqual(res.position.top_left.x, 4)
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42 res = zxingcpp.read_barcode(img, formats=format)
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43 self.check_res(res, format, text)
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44
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45 @unittest.skipIf(not hasattr(zxingcpp, 'create_barcode'), "skipping test for new create_barcode API")
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46 def test_create_write_read_cycle(self):
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47 format = BF.DataMatrix
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48 text = "I have the best words."
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49 img = zxingcpp.create_barcode(text, format).to_image()
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51 res = zxingcpp.read_barcode(img)
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52 self.check_res(res, format, text)
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53
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54 def test_write_read_oned_cycle(self):
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55 format = BF.Code128
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56 text = "I have the best words."
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57 height = 50
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58 width = 400
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59 img = zxingcpp.write_barcode(format, text, width=width, height=height)
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60 # self.assertEqual(img.shape[0], height)
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61 # self.assertEqual(img.shape[1], width)
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62
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63 res = zxingcpp.read_barcode(img)
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64 self.check_res(res, format, text)
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65 # self.assertEqual(res.position.top_left.x, 61)
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66
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67 def test_write_read_multi_cycle(self):
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68 format = BF.QRCode
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69 text = "I have the best words."
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70 img = zxingcpp.write_barcode(format, text)
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72 res = zxingcpp.read_barcodes(img)[0]
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73 self.check_res(res, format, text)
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75 def test_write_read_bytes_cycle(self):
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76 format = BF.QRCode
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77 text = b"\1\2\3\4"
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78 img = zxingcpp.write_barcode(format, text)
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80 res = zxingcpp.read_barcode(img)
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81 self.assertTrue(res.valid)
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82 self.assertEqual(res.bytes, text)
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83 self.assertEqual(res.content_type, CT.Binary)
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84
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85 @unittest.skipIf(not hasattr(zxingcpp, 'create_barcode'), "skipping test for new create_barcode API")
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86 def test_create_write_read_bytes_cycle(self):
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87 format = BF.DataMatrix
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88 text = b"\1\2\3\4"
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89 img = zxingcpp.create_barcode(text, format).to_image()
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91 res = zxingcpp.read_barcode(img)
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92 self.assertTrue(res.valid)
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93 self.assertEqual(res.bytes, text)
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94 self.assertEqual(res.content_type, CT.Binary)
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95
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96 @staticmethod
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97 def zeroes(shape):
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98 return memoryview(b"0" * math.prod(shape)).cast("B", shape=shape)
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99
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100 def test_failed_read_buffer(self):
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101 res = zxingcpp.read_barcode(
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102 self.zeroes((100, 100)), formats=BF.EAN8 | BF.Aztec, binarizer=zxingcpp.Binarizer.BoolCast
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103 )
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104
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105 self.assertEqual(res, None)
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106
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107 @unittest.skipIf(not has_numpy, "need numpy for read/write tests")
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108 def test_failed_read_numpy(self):
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109 import numpy as np
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110 res = zxingcpp.read_barcode(
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111 np.zeros((100, 100), np.uint8), formats=BF.EAN8 | BF.Aztec, binarizer=zxingcpp.Binarizer.BoolCast
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112 )
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113
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114 self.assertEqual(res, None)
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115
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116 def test_write_read_cycle_buffer(self):
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117 format = BF.QRCode
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118 text = "I have the best words."
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119 img = zxingcpp.write_barcode(format, text)
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120
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121 self.check_res(zxingcpp.read_barcode(img), format, text)
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122
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123 @unittest.skipIf(not has_numpy, "need numpy for read/write tests")
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124 def test_write_read_cycle_numpy(self):
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125 import numpy as np
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126 format = BF.QRCode
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127 text = "I have the best words."
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128 img = zxingcpp.write_barcode(format, text, quiet_zone=10)
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129 img = np.array(img)
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130
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131 self.check_res(zxingcpp.read_barcode(img), format, text)
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132 self.check_res(zxingcpp.read_barcode(img[4:40,4:40]), format, text)
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133
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134 @unittest.skipIf(not has_pil, "need PIL for read/write tests")
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135 def test_write_read_cycle_pil(self):
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136 from PIL import Image
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137 format = BF.QRCode
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138 text = "I have the best words."
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139 img = zxingcpp.write_barcode(format, text)
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140 img = Image.fromarray(img, "L")
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141
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142 self.check_res(zxingcpp.read_barcode(img), format, text)
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143 self.check_res(zxingcpp.read_barcode(img.convert("RGB")), format, text)
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144 self.check_res(zxingcpp.read_barcode(img.convert("RGBA")), format, text)
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145 self.check_res(zxingcpp.read_barcode(img.convert("1")), format, text)
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146 self.check_res(zxingcpp.read_barcode(img.convert("CMYK")), format, text)
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147
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148 @unittest.skipIf(not has_cv2, "need cv2 for read/write tests")
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149 def test_write_read_cycle_cv2(self):
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150 import cv2, numpy
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151 format = BF.QRCode
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152 text = "I have the best words."
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153 img = zxingcpp.write_barcode(format, text, quiet_zone=10)
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154 img = cv2.cvtColor(numpy.array(img), cv2.COLOR_GRAY2BGR )
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155
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156 self.check_res(zxingcpp.read_barcode(img), format, text)
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157 self.check_res(zxingcpp.read_barcode(img[4:40,4:40,:]), format, text)
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158
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159 def test_read_invalid_type(self):
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160 self.assertRaisesRegex(
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161 TypeError, "Invalid input: <class 'str'> does not support the buffer protocol.", zxingcpp.read_barcode, "foo"
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162 )
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163
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164 def test_read_invalid_numpy_array_channels_buffer(self):
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165 self.assertRaisesRegex(
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166 ValueError, "Unsupported number of channels for buffer: 4", zxingcpp.read_barcode,
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167 self.zeroes((100, 100, 4))
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168 )
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169
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170 @unittest.skipIf(not has_numpy, "need numpy for read/write tests")
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171 def test_read_invalid_numpy_array_channels_numpy(self):
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172 import numpy as np
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173 self.assertRaisesRegex(
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174 ValueError, "Unsupported number of channels for buffer: 4", zxingcpp.read_barcode,
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175 np.zeros((100, 100, 4), np.uint8)
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176 )
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177
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178
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179 if __name__ == '__main__':
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180 unittest.main()