1 | """ |
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2 | Test cases for codeop.py |
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3 | Nick Mathewson |
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4 | """ |
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5 | import unittest |
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6 | from test.test_support import run_unittest, is_jython |
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7 | |
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8 | from codeop import compile_command, PyCF_DONT_IMPLY_DEDENT |
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9 | |
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10 | if is_jython: |
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11 | import sys |
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12 | import cStringIO |
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13 | |
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14 | def unify_callables(d): |
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15 | for n,v in d.items(): |
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16 | if callable(v): |
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17 | d[n] = callable |
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18 | return d |
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19 | |
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20 | class CodeopTests(unittest.TestCase): |
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21 | |
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22 | def assertValid(self, str, symbol='single'): |
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23 | '''succeed iff str is a valid piece of code''' |
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24 | if is_jython: |
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25 | code = compile_command(str, "<input>", symbol) |
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26 | self.assertTrue(code) |
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27 | if symbol == "single": |
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28 | d,r = {},{} |
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29 | saved_stdout = sys.stdout |
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30 | sys.stdout = cStringIO.StringIO() |
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31 | try: |
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32 | exec code in d |
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33 | exec compile(str,"<input>","single") in r |
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34 | finally: |
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35 | sys.stdout = saved_stdout |
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36 | elif symbol == 'eval': |
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37 | ctx = {'a': 2} |
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38 | d = { 'value': eval(code,ctx) } |
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39 | r = { 'value': eval(str,ctx) } |
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40 | self.assertEqual(unify_callables(r),unify_callables(d)) |
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41 | else: |
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42 | expected = compile(str, "<input>", symbol, PyCF_DONT_IMPLY_DEDENT) |
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43 | self.assertEqual(compile_command(str, "<input>", symbol), expected) |
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44 | |
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45 | def assertIncomplete(self, str, symbol='single'): |
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46 | '''succeed iff str is the start of a valid piece of code''' |
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47 | self.assertEqual(compile_command(str, symbol=symbol), None) |
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48 | |
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49 | def assertInvalid(self, str, symbol='single', is_syntax=1): |
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50 | '''succeed iff str is the start of an invalid piece of code''' |
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51 | try: |
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52 | compile_command(str,symbol=symbol) |
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53 | self.fail("No exception raised for invalid code") |
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54 | except SyntaxError: |
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55 | self.assertTrue(is_syntax) |
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56 | except OverflowError: |
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57 | self.assertTrue(not is_syntax) |
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58 | |
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59 | def test_valid(self): |
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60 | av = self.assertValid |
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61 | |
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62 | # special case |
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63 | if not is_jython: |
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64 | self.assertEqual(compile_command(""), |
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65 | compile("pass", "<input>", 'single', |
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66 | PyCF_DONT_IMPLY_DEDENT)) |
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67 | self.assertEqual(compile_command("\n"), |
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68 | compile("pass", "<input>", 'single', |
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69 | PyCF_DONT_IMPLY_DEDENT)) |
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70 | else: |
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71 | av("") |
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72 | av("\n") |
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73 | |
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74 | av("a = 1") |
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75 | av("\na = 1") |
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76 | av("a = 1\n") |
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77 | av("a = 1\n\n") |
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78 | av("\n\na = 1\n\n") |
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79 | |
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80 | av("def x():\n pass\n") |
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81 | av("if 1:\n pass\n") |
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82 | |
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83 | av("\n\nif 1: pass\n") |
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84 | av("\n\nif 1: pass\n\n") |
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85 | |
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86 | av("def x():\n\n pass\n") |
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87 | av("def x():\n pass\n \n") |
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88 | av("def x():\n pass\n \n") |
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89 | |
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90 | av("pass\n") |
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91 | av("3**3\n") |
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92 | |
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93 | av("if 9==3:\n pass\nelse:\n pass\n") |
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94 | av("if 1:\n pass\n if 1:\n pass\n else:\n pass\n") |
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95 | |
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96 | av("#a\n#b\na = 3\n") |
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97 | av("#a\n\n \na=3\n") |
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98 | av("a=3\n\n") |
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99 | av("a = 9+ \\\n3") |
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100 | |
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101 | av("3**3","eval") |
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102 | av("(lambda z: \n z**3)","eval") |
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103 | |
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104 | av("9+ \\\n3","eval") |
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105 | av("9+ \\\n3\n","eval") |
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106 | |
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107 | av("\n\na**3","eval") |
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108 | av("\n \na**3","eval") |
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109 | av("#a\n#b\na**3","eval") |
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110 | |
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111 | av("\n\na = 1\n\n") |
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112 | av("\n\nif 1: a=1\n\n") |
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113 | |
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114 | av("if 1:\n pass\n if 1:\n pass\n else:\n pass\n") |
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115 | av("#a\n\n \na=3\n\n") |
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116 | |
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117 | av("\n\na**3","eval") |
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118 | av("\n \na**3","eval") |
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119 | av("#a\n#b\na**3","eval") |
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120 | |
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121 | av("def f():\n try: pass\n finally: [x for x in (1,2)]\n") |
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122 | av("def f():\n pass\n#foo\n") |
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123 | av("@a.b.c\ndef f():\n pass\n") |
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124 | |
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125 | def test_incomplete(self): |
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126 | ai = self.assertIncomplete |
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127 | |
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128 | ai("(a **") |
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129 | ai("(a,b,") |
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130 | ai("(a,b,(") |
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131 | ai("(a,b,(") |
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132 | ai("a = (") |
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133 | ai("a = {") |
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134 | ai("b + {") |
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135 | |
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136 | ai("if 9==3:\n pass\nelse:") |
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137 | ai("if 9==3:\n pass\nelse:\n") |
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138 | ai("if 9==3:\n pass\nelse:\n pass") |
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139 | ai("if 1:") |
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140 | ai("if 1:\n") |
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141 | ai("if 1:\n pass\n if 1:\n pass\n else:") |
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142 | ai("if 1:\n pass\n if 1:\n pass\n else:\n") |
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143 | ai("if 1:\n pass\n if 1:\n pass\n else:\n pass") |
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144 | |
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145 | ai("def x():") |
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146 | ai("def x():\n") |
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147 | ai("def x():\n\n") |
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148 | |
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149 | ai("def x():\n pass") |
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150 | ai("def x():\n pass\n ") |
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151 | ai("def x():\n pass\n ") |
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152 | ai("\n\ndef x():\n pass") |
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153 | |
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154 | ai("a = 9+ \\") |
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155 | ai("a = 'a\\") |
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156 | ai("a = '''xy") |
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157 | |
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158 | ai("","eval") |
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159 | ai("\n","eval") |
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160 | ai("(","eval") |
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161 | ai("(\n\n\n","eval") |
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162 | ai("(9+","eval") |
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163 | ai("9+ \\","eval") |
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164 | ai("lambda z: \\","eval") |
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165 | |
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166 | ai("if True:\n if True:\n if True: \n") |
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167 | |
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168 | ai("@a(") |
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169 | ai("@a(b") |
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170 | ai("@a(b,") |
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171 | ai("@a(b,c") |
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172 | ai("@a(b,c,") |
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173 | |
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174 | ai("from a import (") |
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175 | ai("from a import (b") |
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176 | ai("from a import (b,") |
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177 | ai("from a import (b,c") |
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178 | ai("from a import (b,c,") |
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179 | |
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180 | ai("["); |
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181 | ai("[a"); |
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182 | ai("[a,"); |
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183 | ai("[a,b"); |
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184 | ai("[a,b,"); |
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185 | |
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186 | ai("{"); |
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187 | ai("{a"); |
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188 | ai("{a:"); |
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189 | ai("{a:b"); |
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190 | ai("{a:b,"); |
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191 | ai("{a:b,c"); |
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192 | ai("{a:b,c:"); |
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193 | ai("{a:b,c:d"); |
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194 | ai("{a:b,c:d,"); |
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195 | |
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196 | ai("a(") |
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197 | ai("a(b") |
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198 | ai("a(b,") |
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199 | ai("a(b,c") |
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200 | ai("a(b,c,") |
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201 | |
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202 | ai("a[") |
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203 | ai("a[b") |
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204 | ai("a[b,") |
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205 | ai("a[b:") |
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206 | ai("a[b:c") |
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207 | ai("a[b:c:") |
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208 | ai("a[b:c:d") |
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209 | |
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210 | ai("def a(") |
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211 | ai("def a(b") |
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212 | ai("def a(b,") |
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213 | ai("def a(b,c") |
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214 | ai("def a(b,c,") |
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215 | |
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216 | ai("(") |
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217 | ai("(a") |
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218 | ai("(a,") |
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219 | ai("(a,b") |
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220 | ai("(a,b,") |
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221 | |
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222 | ai("if a:\n pass\nelif b:") |
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223 | ai("if a:\n pass\nelif b:\n pass\nelse:") |
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224 | |
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225 | ai("while a:") |
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226 | ai("while a:\n pass\nelse:") |
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227 | |
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228 | ai("for a in b:") |
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229 | ai("for a in b:\n pass\nelse:") |
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230 | |
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231 | ai("try:") |
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232 | ai("try:\n pass\nexcept:") |
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233 | ai("try:\n pass\nfinally:") |
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234 | ai("try:\n pass\nexcept:\n pass\nfinally:") |
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235 | |
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236 | ai("with a:") |
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237 | ai("with a as b:") |
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238 | |
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239 | ai("class a:") |
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240 | ai("class a(") |
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241 | ai("class a(b") |
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242 | ai("class a(b,") |
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243 | ai("class a():") |
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244 | |
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245 | ai("[x for") |
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246 | ai("[x for x in") |
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247 | ai("[x for x in (") |
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248 | |
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249 | ai("(x for") |
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250 | ai("(x for x in") |
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251 | ai("(x for x in (") |
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252 | |
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253 | def test_invalid(self): |
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254 | ai = self.assertInvalid |
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255 | ai("a b") |
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256 | |
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257 | ai("a @") |
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258 | ai("a b @") |
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259 | ai("a ** @") |
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260 | |
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261 | ai("a = ") |
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262 | ai("a = 9 +") |
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263 | |
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264 | ai("def x():\n\npass\n") |
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265 | |
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266 | ai("\n\n if 1: pass\n\npass") |
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267 | |
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268 | ai("a = 9+ \\\n") |
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269 | ai("a = 'a\\ ") |
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270 | ai("a = 'a\\\n") |
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271 | |
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272 | ai("a = 1","eval") |
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273 | ai("a = (","eval") |
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274 | ai("]","eval") |
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275 | ai("())","eval") |
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276 | ai("[}","eval") |
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277 | ai("9+","eval") |
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278 | ai("lambda z:","eval") |
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279 | ai("a b","eval") |
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280 | |
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281 | ai("return 2.3") |
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282 | ai("if (a == 1 and b = 2): pass") |
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283 | |
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284 | ai("del 1") |
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285 | ai("del ()") |
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286 | ai("del (1,)") |
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287 | ai("del [1]") |
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288 | ai("del '1'") |
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289 | |
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290 | ai("[i for i in range(10)] = (1, 2, 3)") |
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291 | |
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292 | def test_filename(self): |
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293 | self.assertEqual(compile_command("a = 1\n", "abc").co_filename, |
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294 | compile("a = 1\n", "abc", 'single').co_filename) |
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295 | self.assertNotEqual(compile_command("a = 1\n", "abc").co_filename, |
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296 | compile("a = 1\n", "def", 'single').co_filename) |
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297 | |
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298 | |
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299 | def test_main(): |
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300 | run_unittest(CodeopTests) |
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301 | |
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302 | |
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303 | if __name__ == "__main__": |
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304 | test_main() |
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