| 1 | """
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| 2 | TestCases for exercising a Queue DB.
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| 3 | """
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| 4 |
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| 5 | import os, string
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| 6 | from pprint import pprint
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| 7 | import unittest
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| 8 |
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| 9 | from test_all import db, verbose, get_new_database_path
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| 10 |
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| 11 | #----------------------------------------------------------------------
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| 12 |
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| 13 | class SimpleQueueTestCase(unittest.TestCase):
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| 14 | def setUp(self):
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| 15 | self.filename = get_new_database_path()
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| 16 |
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| 17 | def tearDown(self):
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| 18 | try:
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| 19 | os.remove(self.filename)
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| 20 | except os.error:
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| 21 | pass
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| 22 |
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| 23 |
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| 24 | def test01_basic(self):
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| 25 | # Basic Queue tests using the deprecated DBCursor.consume method.
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| 26 |
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| 27 | if verbose:
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| 28 | print '\n', '-=' * 30
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| 29 | print "Running %s.test01_basic..." % self.__class__.__name__
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| 30 |
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| 31 | d = db.DB()
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| 32 | d.set_re_len(40) # Queues must be fixed length
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| 33 | d.open(self.filename, db.DB_QUEUE, db.DB_CREATE)
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| 34 |
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| 35 | if verbose:
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| 36 | print "before appends" + '-' * 30
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| 37 | pprint(d.stat())
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| 38 |
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| 39 | for x in string.letters:
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| 40 | d.append(x * 40)
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| 41 |
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| 42 | self.assertEqual(len(d), len(string.letters))
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| 43 |
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| 44 | d.put(100, "some more data")
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| 45 | d.put(101, "and some more ")
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| 46 | d.put(75, "out of order")
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| 47 | d.put(1, "replacement data")
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| 48 |
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| 49 | self.assertEqual(len(d), len(string.letters)+3)
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| 50 |
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| 51 | if verbose:
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| 52 | print "before close" + '-' * 30
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| 53 | pprint(d.stat())
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| 54 |
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| 55 | d.close()
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| 56 | del d
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| 57 | d = db.DB()
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| 58 | d.open(self.filename)
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| 59 |
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| 60 | if verbose:
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| 61 | print "after open" + '-' * 30
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| 62 | pprint(d.stat())
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| 63 |
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| 64 | # Test "txn" as a positional parameter
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| 65 | d.append("one more", None)
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| 66 | # Test "txn" as a keyword parameter
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| 67 | d.append("another one", txn=None)
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| 68 |
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| 69 | c = d.cursor()
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| 70 |
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| 71 | if verbose:
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| 72 | print "after append" + '-' * 30
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| 73 | pprint(d.stat())
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| 74 |
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| 75 | rec = c.consume()
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| 76 | while rec:
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| 77 | if verbose:
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| 78 | print rec
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| 79 | rec = c.consume()
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| 80 | c.close()
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| 81 |
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| 82 | if verbose:
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| 83 | print "after consume loop" + '-' * 30
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| 84 | pprint(d.stat())
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| 85 |
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| 86 | self.assertEqual(len(d), 0, \
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| 87 | "if you see this message then you need to rebuild " \
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| 88 | "Berkeley DB 3.1.17 with the patch in patches/qam_stat.diff")
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| 89 |
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| 90 | d.close()
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| 91 |
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| 92 |
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| 93 |
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| 94 | def test02_basicPost32(self):
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| 95 | # Basic Queue tests using the new DB.consume method in DB 3.2+
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| 96 | # (No cursor needed)
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| 97 |
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| 98 | if verbose:
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| 99 | print '\n', '-=' * 30
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| 100 | print "Running %s.test02_basicPost32..." % self.__class__.__name__
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| 101 |
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| 102 | d = db.DB()
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| 103 | d.set_re_len(40) # Queues must be fixed length
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| 104 | d.open(self.filename, db.DB_QUEUE, db.DB_CREATE)
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| 105 |
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| 106 | if verbose:
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| 107 | print "before appends" + '-' * 30
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| 108 | pprint(d.stat())
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| 109 |
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| 110 | for x in string.letters:
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| 111 | d.append(x * 40)
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| 112 |
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| 113 | self.assertEqual(len(d), len(string.letters))
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| 114 |
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| 115 | d.put(100, "some more data")
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| 116 | d.put(101, "and some more ")
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| 117 | d.put(75, "out of order")
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| 118 | d.put(1, "replacement data")
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| 119 |
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| 120 | self.assertEqual(len(d), len(string.letters)+3)
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| 121 |
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| 122 | if verbose:
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| 123 | print "before close" + '-' * 30
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| 124 | pprint(d.stat())
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| 125 |
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| 126 | d.close()
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| 127 | del d
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| 128 | d = db.DB()
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| 129 | d.open(self.filename)
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| 130 | #d.set_get_returns_none(true)
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| 131 |
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| 132 | if verbose:
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| 133 | print "after open" + '-' * 30
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| 134 | pprint(d.stat())
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| 135 |
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| 136 | d.append("one more")
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| 137 |
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| 138 | if verbose:
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| 139 | print "after append" + '-' * 30
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| 140 | pprint(d.stat())
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| 141 |
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| 142 | rec = d.consume()
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| 143 | while rec:
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| 144 | if verbose:
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| 145 | print rec
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| 146 | rec = d.consume()
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| 147 |
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| 148 | if verbose:
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| 149 | print "after consume loop" + '-' * 30
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| 150 | pprint(d.stat())
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| 151 |
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| 152 | d.close()
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| 153 |
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| 154 |
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| 155 |
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| 156 | #----------------------------------------------------------------------
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| 157 |
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| 158 | def test_suite():
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| 159 | return unittest.makeSuite(SimpleQueueTestCase)
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| 160 |
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| 161 |
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| 162 | if __name__ == '__main__':
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| 163 | unittest.main(defaultTest='test_suite')
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