106 lines
4.1 KiB
Python
106 lines
4.1 KiB
Python
#------------------------------------------------------------------------------
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# Copyright (c) 2016, 2020, Oracle and/or its affiliates. All rights reserved.
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#
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# Portions Copyright 2007-2015, Anthony Tuininga. All rights reserved.
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#
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# Portions Copyright 2001-2007, Computronix (Canada) Ltd., Edmonton, Alberta,
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# Canada. All rights reserved.
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#------------------------------------------------------------------------------
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"""
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2000 - Module for testing long and long raw variables
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"""
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import base
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import cx_Oracle as oracledb
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class TestCase(base.BaseTestCase):
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def __perform_test(self, typ):
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name_part = "Long" if typ is oracledb.DB_TYPE_LONG else "LongRaw"
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self.cursor.execute("truncate table Test%ss" % name_part)
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long_string = ""
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for i in range(1, 11):
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char = chr(ord('A') + i - 1)
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long_string += char * 25000
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self.cursor.setinputsizes(long_string=typ)
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if typ is oracledb.DB_TYPE_LONG_RAW:
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bind_value = long_string.encode()
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else:
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bind_value = long_string
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self.cursor.execute("""
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insert into Test%ss (
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IntCol,
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%sCol
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) values (
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:integer_value,
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:long_string
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)""" % (name_part, name_part),
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integer_value=i,
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long_string=bind_value)
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self.connection.commit()
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self.cursor.execute("""
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select *
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from Test%ss
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order by IntCol""" % name_part)
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long_string = ""
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for integer_value, fetched_value in self.cursor:
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char = chr(ord('A') + integer_value - 1)
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long_string += char * 25000
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if typ is oracledb.DB_TYPE_LONG_RAW:
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actual_value = long_string.encode()
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else:
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actual_value = long_string
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self.assertEqual(len(fetched_value), integer_value * 25000)
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self.assertEqual(fetched_value, actual_value)
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def test_2000_longs(self):
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"2000 - test binding and fetching long data"
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self.__perform_test(oracledb.DB_TYPE_LONG)
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def test_2001_long_with_execute_many(self):
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"2001 - test binding long data with executemany()"
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data = []
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self.cursor.execute("truncate table TestLongs")
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for i in range(5):
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char = chr(ord('A') + i)
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long_str = char * (32768 * (i + 1))
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data.append((i + 1, long_str))
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self.cursor.executemany("insert into TestLongs values (:1, :2)", data)
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self.connection.commit()
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self.cursor.execute("select * from TestLongs order by IntCol")
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fetched_data = self.cursor.fetchall()
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self.assertEqual(fetched_data, data)
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def test_2002_long_raws(self):
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"2002 - test binding and fetching long raw data"
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self.__perform_test(oracledb.DB_TYPE_LONG_RAW)
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def test_2003_long_cursor_description(self):
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"2003 - test cursor description is accurate for longs"
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self.cursor.execute("select * from TestLongs")
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expected_value = [
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('INTCOL', oracledb.DB_TYPE_NUMBER, 10, None, 9, 0, 0),
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('LONGCOL', oracledb.DB_TYPE_LONG, None, None, None, None, 0)
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]
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self.assertEqual(self.cursor.description, expected_value)
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def test_2004_long_raw_cursor_description(self):
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"2004 - test cursor description is accurate for long raws"
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self.cursor.execute("select * from TestLongRaws")
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self.assertEqual(self.cursor.description,
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[ ('INTCOL', oracledb.DB_TYPE_NUMBER, 10, None, 9, 0, 0),
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('LONGRAWCOL', oracledb.DB_TYPE_LONG_RAW, None, None, None,
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None, 0) ])
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def test_2005_array_size_too_large(self):
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"2005 - test array size too large generates an exception"
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self.cursor.arraysize = 268435456
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self.assertRaises(oracledb.DatabaseError, self.cursor.execute,
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"select * from TestLongRaws")
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if __name__ == "__main__":
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base.run_test_cases()
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