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https://github.com/psycopg/psycopg2.git
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104 lines
3.8 KiB
Python
Executable File
104 lines
3.8 KiB
Python
Executable File
#!/usr/bin/env python
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# types_basic.py - tests for basic types conversions
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#
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# Copyright (C) 2004 Federico Di Gregorio <fog@debian.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2, or (at your option) any later
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# version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# for more details.
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try:
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import decimal
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except:
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pass
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import sys
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import unittest
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import psycopg2
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import tests
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class TypesBasicTests(unittest.TestCase):
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"""Test that all type conversions are working."""
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def setUp(self):
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self.conn = psycopg2.connect(tests.dsn)
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def execute(self, *args):
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curs = self.conn.cursor()
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curs.execute(*args)
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return curs.fetchone()[0]
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def testQuoting(self):
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s = "Quote'this\\! ''ok?''"
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self.failUnless(self.execute("SELECT %s AS foo", (s,)) == s,
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"wrong quoting: " + s)
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def testUnicode(self):
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s = u"Quote'this\\! ''ok?''"
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self.failUnless(self.execute("SELECT %s AS foo", (s,)) == s,
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"wrong unicode quoting: " + s)
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def testNumber(self):
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s = self.execute("SELECT %s AS foo", (1971,))
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self.failUnless(s == 1971, "wrong integer quoting: " + str(s))
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s = self.execute("SELECT %s AS foo", (1971L,))
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self.failUnless(s == 1971L, "wrong integer quoting: " + str(s))
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# Python 2.4 defaults to Decimal? (Apparently it does not.)
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if sys.version_info[0] >= 2 and sys.version_info[1] >= 4:
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s = self.execute("SELECT %s AS foo", (decimal.Decimal("19.10"),))
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self.failUnless(s - decimal.Decimal("19.10") == 0,
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"wrong decimal quoting: " + str(s))
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else:
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s = self.execute("SELECT %s AS foo", (19.10,))
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self.failUnless(abs(s - 19.10) < 0.001,
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"wrong float quoting: " + str(s))
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def testFloat(self):
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s = self.execute("SELECT %s AS foo", (float("nan"),))
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self.failUnless(str(s) == "nan", "wrong float quoting: " + str(s))
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self.failUnless(type(s) == float, "wrong float conversion: " + repr(s))
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s = self.execute("SELECT %s AS foo", (float("inf"),))
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self.failUnless(str(s) == "inf", "wrong float quoting: " + str(s))
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self.failUnless(type(s) == float, "wrong float conversion: " + repr(s))
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def testBinary(self):
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s = ''.join([chr(x) for x in range(256)])
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b = psycopg2.Binary(s)
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buf = self.execute("SELECT %s::bytea AS foo", (b,))
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self.failUnless(str(buf) == s, "wrong binary quoting")
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def testBinaryEmptyString(self):
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# test to make sure an empty Binary is converted to an empty string
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b = psycopg2.Binary('')
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self.assertEqual(str(b), "''")
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def testBinaryRoundTrip(self):
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# test to make sure buffers returned by psycopg2 are
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# understood by execute:
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s = ''.join([chr(x) for x in range(256)])
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buf = self.execute("SELECT %s::bytea AS foo", (psycopg2.Binary(s),))
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buf2 = self.execute("SELECT %s::bytea AS foo", (buf,))
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self.failUnless(str(buf2) == s, "wrong binary quoting")
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def testArray(self):
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s = self.execute("SELECT %s AS foo", ([[1,2],[3,4]],))
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self.failUnless(s == [[1,2],[3,4]], "wrong array quoting " + str(s))
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s = self.execute("SELECT %s AS foo", (['one', 'two', 'three'],))
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self.failUnless(s == ['one', 'two', 'three'],
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"wrong array quoting " + str(s))
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def test_suite():
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return unittest.TestLoader().loadTestsFromName(__name__)
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if __name__ == "__main__":
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unittest.main()
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