Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_pprint.py @ 25135:0f0016632be4 legacy-trunk

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_formatparam(), set_param(): RFC 2231 encoding support by Oleg Broytmann in SF patch #600096. Specifically, the former function now encodes the triplets, while the latter adds optional charset and language arguments.
author Barry Warsaw <barry@python.org>
date Fri, 06 Sep 2002 03:55:04 +0000
parents dc66eb4cd17a
children 32e4c7753416
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 import pprint
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2 import unittest
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3 from test import test_support
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4
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5 try:
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6 uni = unicode
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7 except NameError:
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8 def uni(x):return x
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9
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10
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11 class QueryTestCase(unittest.TestCase):
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12
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13 def setUp(self):
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14 self.a = range(100)
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15 self.b = range(200)
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16 self.a[-12] = self.b
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17
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18 def test_basic(self):
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19 # Verify .isrecursive() and .isreadable() w/o recursion
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20 verify = self.assert_
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21 for safe in (2, 2.0, 2j, "abc", [3], (2,2), {3: 3}, uni("yaddayadda"),
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22 self.a, self.b):
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23 verify(not pprint.isrecursive(safe),
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24 "expected not isrecursive for " + `safe`)
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25 verify(pprint.isreadable(safe),
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26 "expected isreadable for " + `safe`)
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27
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28 def test_knotted(self):
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29 # Verify .isrecursive() and .isreadable() w/ recursion
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30 # Tie a knot.
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31 self.b[67] = self.a
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32 # Messy dict.
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33 self.d = {}
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34 self.d[0] = self.d[1] = self.d[2] = self.d
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35
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36 verify = self.assert_
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37
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38 for icky in self.a, self.b, self.d, (self.d, self.d):
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39 verify(pprint.isrecursive(icky), "expected isrecursive")
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40 verify(not pprint.isreadable(icky), "expected not isreadable")
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41
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42 # Break the cycles.
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43 self.d.clear()
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44 del self.a[:]
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45 del self.b[:]
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46
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47 for safe in self.a, self.b, self.d, (self.d, self.d):
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48 verify(not pprint.isrecursive(safe),
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49 "expected not isrecursive for " + `safe`)
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50 verify(pprint.isreadable(safe),
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51 "expected isreadable for " + `safe`)
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52
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53 def test_unreadable(self):
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54 # Not recursive but not readable anyway
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55 verify = self.assert_
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56 for unreadable in type(3), pprint, pprint.isrecursive:
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57 verify(not pprint.isrecursive(unreadable),
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58 "expected not isrecursive for " + `unreadable`)
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59 verify(not pprint.isreadable(unreadable),
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60 "expected not isreadable for " + `unreadable`)
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61
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62 def test_same_as_repr(self):
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63 # Simple objects and small containers that should be same as repr()
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64 verify = self.assert_
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65 for simple in (0, 0L, 0+0j, 0.0, "", uni(""), (), [], {}, verify, pprint,
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66 -6, -6L, -6-6j, -1.5, "x", uni("x"), (3,), [3], {3: 6},
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67 (1,2), [3,4], {5: 6, 7: 8},
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68 {"xy\tab\n": (3,), 5: [[]], (): {}},
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69 range(10, -11, -1)
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70 ):
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71 native = repr(simple)
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72 for function in "pformat", "saferepr":
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73 f = getattr(pprint, function)
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74 got = f(simple)
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75 verify(native == got, "expected %s got %s from pprint.%s" %
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76 (native, got, function))
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78
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79 def test_basic_line_wrap(self):
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80 # verify basic line-wrapping operation
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81 o = {'RPM_cal': 0,
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82 'RPM_cal2': 48059,
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83 'Speed_cal': 0,
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84 'controldesk_runtime_us': 0,
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85 'main_code_runtime_us': 0,
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86 'read_io_runtime_us': 0,
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87 'write_io_runtime_us': 43690}
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88 exp = """\
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89 {'RPM_cal': 0,
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90 'RPM_cal2': 48059,
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91 'Speed_cal': 0,
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92 'controldesk_runtime_us': 0,
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93 'main_code_runtime_us': 0,
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94 'read_io_runtime_us': 0,
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95 'write_io_runtime_us': 43690}"""
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96 self.assertEqual(pprint.pformat(o), exp)
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97
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98 def test_subclassing(self):
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99 o = {'names with spaces': 'should be presented using repr()',
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100 'others.should.not.be': 'like.this'}
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101 exp = """\
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102 {'names with spaces': 'should be presented using repr()',
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103 others.should.not.be: like.this}"""
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104 self.assertEqual(DottedPrettyPrinter().pformat(o), exp)
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105
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106
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107 class DottedPrettyPrinter(pprint.PrettyPrinter):
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108
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109 def format(self, object, context, maxlevels, level):
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110 if isinstance(object, str):
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111 if ' ' in object:
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112 return `object`, 1, 0
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113 else:
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114 return object, 0, 0
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115 else:
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116 return pprint.PrettyPrinter.format(
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117 self, object, context, maxlevels, level)
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118
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119
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120 def test_main():
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121 test_support.run_unittest(QueryTestCase)
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122
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123
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124 if __name__ == "__main__":
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125 test_main()