Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_codeop.py @ 25838:8540887bcec6 2.2

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Backport of 2.183: Fix memory leak in add_subclass() found by NealN with valgrind.
author Guido van Rossum <guido@python.org>
date Fri, 18 Oct 2002 13:42:21 +0000
parents e3184e46303b
children 693155cdae03 aa0d2d51fbde
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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_support import run_unittest
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7
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8 from codeop import compile_command
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9
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10 class CodeopTests(unittest.TestCase):
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11
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12 def assertValid(self, str, symbol='single'):
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13 '''succeed iff str is a valid piece of code'''
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14 expected = compile(str, "<input>", symbol)
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15 self.assertEquals( compile_command(str, "<input>", symbol), expected)
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17
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18 def assertIncomplete(self, str, symbol='single'):
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19 '''succeed iff str is the start of a valid piece of code'''
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20 self.assertEquals( compile_command(str, symbol=symbol), None)
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21
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22 def assertInvalid(self, str, symbol='single', is_syntax=1):
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23 '''succeed iff str is the start of an invalid piece of code'''
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24 try:
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25 compile_command(str,symbol=symbol)
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26 self.fail("No exception thrown for invalid code")
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27 except SyntaxError:
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28 self.assert_(is_syntax)
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29 except OverflowError:
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30 self.assert_(not is_syntax)
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31
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32 def test_valid(self):
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33 av = self.assertValid
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34 av("a = 1\n")
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35 av("def x():\n pass\n")
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36 av("pass\n")
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37 av("3**3\n")
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38 av("if 9==3:\n pass\nelse:\n pass\n")
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39 av("#a\n#b\na = 3\n")
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40 av("#a\n\n \na=3\n")
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41 av("a=3\n\n")
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42
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43 # special case
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44 self.assertEquals(compile_command(""),
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45 compile("pass", "<input>", 'single'))
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46
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47 av("3**3","eval")
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48 av("(lambda z: \n z**3)","eval")
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49 av("#a\n#b\na**3","eval")
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50
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51 def test_incomplete(self):
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52 ai = self.assertIncomplete
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53 ai("(a **")
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54 ai("def x():\n")
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55 ai("(a,b,")
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56 ai("(a,b,(")
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57 ai("(a,b,(")
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58 ai("if 9==3:\n pass\nelse:\n")
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59 ai("if 9==3:\n pass\nelse:\n pass")
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60 ai("a = (")
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61 ai("a = 9+ \\")
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62
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63 ai("(","eval")
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64 ai("(\n\n\n","eval")
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65 ai("(9+","eval")
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66 ai("9+ \\","eval")
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67 ai("lambda z: \\","eval")
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68
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69 def test_invalid(self):
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70 ai = self.assertInvalid
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71 ai("a b")
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72 ai("a = ")
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73 ai("a = 9 +")
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74
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75 ai("a = 1","eval")
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76 ai("a = (","eval")
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77 ai("]","eval")
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78 ai("())","eval")
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79 ai("[}","eval")
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80 ai("9+","eval")
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81 ai("lambda z:","eval")
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82 ai("a b","eval")
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83
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84 def test_filename(self):
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85 self.assertEquals(compile_command("a = 1\n", "abc").co_filename,
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86 compile("a = 1\n", "abc", 'single').co_filename)
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87 self.assertNotEquals(compile_command("a = 1\n", "abc").co_filename,
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88 compile("a = 1\n", "def", 'single').co_filename)
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89
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91 def test_main():
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92 run_unittest(CodeopTests)
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95 if __name__ == "__main__":
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96 test_main()