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87 lines
2.9 KiB
Python
Executable File
87 lines
2.9 KiB
Python
Executable File
#!/usr/bin/env python
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from testutils import unittest
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import psycopg2
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import psycopg2.extensions
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import tests
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class QuotingTestCase(unittest.TestCase):
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r"""Checks the correct quoting of strings and binary objects.
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Since ver. 8.1, PostgreSQL is moving towards SQL standard conforming
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strings, where the backslash (\) is treated as literal character,
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not as escape. To treat the backslash as a C-style escapes, PG supports
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the E'' quotes.
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This test case checks that the E'' quotes are used whenever they are
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needed. The tests are expected to pass with all PostgreSQL server versions
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(currently tested with 7.4 <= PG <= 8.3beta) and with any
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'standard_conforming_strings' server parameter value.
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The tests also check that no warning is raised ('escape_string_warning'
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should be on).
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http://www.postgresql.org/docs/8.1/static/sql-syntax.html#SQL-SYNTAX-STRINGS
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http://www.postgresql.org/docs/8.1/static/runtime-config-compatible.html
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"""
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def setUp(self):
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self.conn = psycopg2.connect(tests.dsn)
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def tearDown(self):
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self.conn.close()
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def test_string(self):
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data = """some data with \t chars
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to escape into, 'quotes' and \\ a backslash too.
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"""
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data += "".join(map(chr, range(1,127)))
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curs = self.conn.cursor()
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curs.execute("SELECT %s;", (data,))
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res = curs.fetchone()[0]
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self.assertEqual(res, data)
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self.assert_(not self.conn.notices)
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def test_binary(self):
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data = """some data with \000\013 binary
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stuff into, 'quotes' and \\ a backslash too.
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"""
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data += "".join(map(chr, range(256)))
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curs = self.conn.cursor()
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curs.execute("SELECT %s::bytea;", (psycopg2.Binary(data),))
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res = str(curs.fetchone()[0])
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self.assertEqual(res, data)
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self.assert_(not self.conn.notices)
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def test_unicode(self):
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curs = self.conn.cursor()
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curs.execute("SHOW server_encoding")
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server_encoding = curs.fetchone()[0]
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if server_encoding != "UTF8":
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return self.skipTest(
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"Unicode test skipped since server encoding is %s"
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% server_encoding)
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data = u"""some data with \t chars
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to escape into, 'quotes', \u20ac euro sign and \\ a backslash too.
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"""
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data += u"".join(map(unichr, [ u for u in range(1,65536)
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if not 0xD800 <= u <= 0xDFFF ])) # surrogate area
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self.conn.set_client_encoding('UNICODE')
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psycopg2.extensions.register_type(psycopg2.extensions.UNICODE, self.conn)
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curs.execute("SELECT %s::text;", (data,))
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res = curs.fetchone()[0]
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self.assertEqual(res, data)
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self.assert_(not self.conn.notices)
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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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