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1 """ |
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2 Tests for uu module. |
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3 Nick Mathewson |
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4 """ |
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5 |
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6 import unittest |
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7 from test import test_support |
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8 |
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9 import sys, os, uu, cStringIO |
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10 import uu |
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11 |
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12 plaintext = "The smooth-scaled python crept over the sleeping dog\n" |
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13 |
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14 encodedtext = """\ |
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15 M5&AE('-M;V]T:\"US8V%L960@<'ET:&]N(&-R97!T(&]V97(@=&AE('-L965P |
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16 (:6YG(&1O9PH """ |
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17 |
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18 encodedtextwrapped = "begin %03o %s\n" + encodedtext.replace("%", "%%") + "\n \nend\n" |
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19 |
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20 class UUTest(unittest.TestCase): |
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21 |
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22 def test_encode(self): |
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23 inp = cStringIO.StringIO(plaintext) |
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24 out = cStringIO.StringIO() |
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25 uu.encode(inp, out, "t1") |
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26 self.assertEqual(out.getvalue(), encodedtextwrapped % (0666, "t1")) |
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27 inp = cStringIO.StringIO(plaintext) |
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28 out = cStringIO.StringIO() |
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29 uu.encode(inp, out, "t1", 0644) |
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30 self.assertEqual(out.getvalue(), encodedtextwrapped % (0644, "t1")) |
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31 |
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32 def test_decode(self): |
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33 inp = cStringIO.StringIO(encodedtextwrapped % (0666, "t1")) |
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34 out = cStringIO.StringIO() |
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35 uu.decode(inp, out) |
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36 self.assertEqual(out.getvalue(), plaintext) |
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37 inp = cStringIO.StringIO( |
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38 "UUencoded files may contain many lines,\n" + |
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39 "even some that have 'begin' in them.\n" + |
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40 encodedtextwrapped % (0666, "t1") |
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41 ) |
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42 out = cStringIO.StringIO() |
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43 uu.decode(inp, out) |
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44 self.assertEqual(out.getvalue(), plaintext) |
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45 |
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46 def test_truncatedinput(self): |
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47 inp = cStringIO.StringIO("begin 644 t1\n" + encodedtext) |
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48 out = cStringIO.StringIO() |
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49 try: |
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50 uu.decode(inp, out) |
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51 self.fail("No exception thrown") |
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52 except uu.Error, e: |
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53 self.assertEqual(str(e), "Truncated input file") |
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54 |
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55 def test_missingbegin(self): |
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56 inp = cStringIO.StringIO("") |
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57 out = cStringIO.StringIO() |
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58 try: |
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59 uu.decode(inp, out) |
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60 self.fail("No exception thrown") |
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61 except uu.Error, e: |
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62 self.assertEqual(str(e), "No valid begin line found in input file") |
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63 |
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64 class UUStdIOTest(unittest.TestCase): |
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65 |
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66 def setUp(self): |
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67 self.stdin = sys.stdin |
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68 self.stdout = sys.stdout |
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69 |
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70 def tearDown(self): |
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71 sys.stdin = self.stdin |
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72 sys.stdout = self.stdout |
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73 |
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74 def test_encode(self): |
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75 sys.stdin = cStringIO.StringIO(plaintext) |
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76 sys.stdout = cStringIO.StringIO() |
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77 uu.encode("-", "-", "t1", 0666) |
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78 self.assertEqual( |
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79 sys.stdout.getvalue(), |
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80 encodedtextwrapped % (0666, "t1") |
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81 ) |
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82 |
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83 def test_decode(self): |
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84 sys.stdin = cStringIO.StringIO(encodedtextwrapped % (0666, "t1")) |
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85 sys.stdout = cStringIO.StringIO() |
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86 uu.decode("-", "-") |
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87 self.assertEqual(sys.stdout.getvalue(), plaintext) |
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88 |
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89 class UUFileTest(unittest.TestCase): |
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90 |
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91 def _kill(self, f): |
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92 # close and remove file |
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93 try: |
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94 f.close() |
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95 except (SystemExit, KeyboardInterrupt): |
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96 raise |
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97 except: |
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98 pass |
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99 try: |
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100 os.unlink(f.name) |
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101 except (SystemExit, KeyboardInterrupt): |
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102 raise |
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103 except: |
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104 pass |
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105 |
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106 def setUp(self): |
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107 self.tmpin = test_support.TESTFN + "i" |
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108 self.tmpout = test_support.TESTFN + "o" |
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109 |
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110 def tearDown(self): |
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111 del self.tmpin |
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112 del self.tmpout |
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113 |
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114 def test_encode(self): |
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115 fin = fout = None |
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116 try: |
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117 test_support.unlink(self.tmpin) |
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118 fin = open(self.tmpin, 'wb') |
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119 fin.write(plaintext) |
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120 fin.close() |
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121 |
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122 fin = open(self.tmpin, 'rb') |
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123 fout = open(self.tmpout, 'w') |
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124 uu.encode(fin, fout, self.tmpin, mode=0644) |
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125 fin.close() |
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126 fout.close() |
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127 |
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128 fout = open(self.tmpout, 'r') |
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129 s = fout.read() |
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130 fout.close() |
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131 self.assertEqual(s, encodedtextwrapped % (0644, self.tmpin)) |
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132 |
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133 # in_file and out_file as filenames |
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134 uu.encode(self.tmpin, self.tmpout, self.tmpin, mode=0644) |
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135 fout = open(self.tmpout, 'r') |
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136 s = fout.read() |
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137 fout.close() |
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138 self.assertEqual(s, encodedtextwrapped % (0644, self.tmpin)) |
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139 |
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140 finally: |
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141 self._kill(fin) |
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142 self._kill(fout) |
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143 |
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144 def test_decode(self): |
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145 f = None |
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146 try: |
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147 test_support.unlink(self.tmpin) |
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148 f = open(self.tmpin, 'w') |
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149 f.write(encodedtextwrapped % (0644, self.tmpout)) |
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150 f.close() |
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151 |
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152 f = open(self.tmpin, 'r') |
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153 uu.decode(f) |
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154 f.close() |
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155 |
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156 f = open(self.tmpout, 'r') |
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157 s = f.read() |
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158 f.close() |
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159 self.assertEqual(s, plaintext) |
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160 # XXX is there an xp way to verify the mode? |
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161 finally: |
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162 self._kill(f) |
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163 |
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164 def test_decodetwice(self): |
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165 # Verify that decode() will refuse to overwrite an existing file |
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166 f = None |
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167 try: |
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168 f = cStringIO.StringIO(encodedtextwrapped % (0644, self.tmpout)) |
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169 |
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170 f = open(self.tmpin, 'r') |
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171 uu.decode(f) |
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172 f.close() |
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173 |
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174 f = open(self.tmpin, 'r') |
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175 self.assertRaises(uu.Error, uu.decode, f) |
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176 f.close() |
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177 finally: |
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178 self._kill(f) |
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179 |
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180 def test_main(): |
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181 test_support.run_unittest(UUTest, UUStdIOTest, UUFileTest) |
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182 |
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183 if __name__=="__main__": |
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184 test_main() |