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test_2200_number_var.py
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#------------------------------------------------------------------------------
# Copyright (c) 2016, 2020, Oracle and/or its affiliates. All rights reserved.
#
# Portions Copyright 2007-2015, Anthony Tuininga. All rights reserved.
#
# Portions Copyright 2001-2007, Computronix (Canada) Ltd., Edmonton, Alberta,
# Canada. All rights reserved.
#------------------------------------------------------------------------------
"""
2200 - Module for testing number variables
"""
import test_env
import cx_Oracle as oracledb
import decimal
import sys
class TestCase(test_env.BaseTestCase):
def output_type_handler_binary_int(self, cursor, name, default_type, size,
precision, scale):
return cursor.var(oracledb.DB_TYPE_BINARY_INTEGER,
arraysize=cursor.arraysize)
def output_type_handler_decimal(self, cursor, name, default_type, size,
precision, scale):
if default_type == oracledb.NUMBER:
return cursor.var(str, 255, outconverter=decimal.Decimal,
arraysize=cursor.arraysize)
def setUp(self):
super().setUp()
self.raw_data = []
self.data_by_key = {}
for i in range(1, 11):
number_col = i + i * 0.25
float_col = i + i * 0.75
unconstrained_col = i ** 3 + i * 0.5
if i % 2:
nullable_col = 143 ** i
else:
nullable_col = None
data_tuple = (i, 38 ** i, number_col, float_col,
unconstrained_col, nullable_col)
self.raw_data.append(data_tuple)
self.data_by_key[i] = data_tuple
def test_2200_bind_boolean(self):
"2200 - test binding in a boolean"
result = self.cursor.callfunc("pkg_TestBooleans.GetStringRep", str,
(True,))
self.assertEqual(result, "TRUE")
def test_2201_bind_boolean_as_number(self):
"2201 - test binding in a boolean as a number"
var = self.cursor.var(oracledb.NUMBER)
var.setvalue(0, True)
self.cursor.execute("select :1 from dual", [var])
result, = self.cursor.fetchone()
self.assertEqual(result, 1)
var.setvalue(0, False)
self.cursor.execute("select :1 from dual", [var])
result, = self.cursor.fetchone()
self.assertEqual(result, 0)
def test_2202_bind_decimal(self):
"2202 - test binding in a decimal.Decimal"
self.cursor.execute("""
select * from TestNumbers
where NumberCol - :value1 - :value2 = trunc(NumberCol)""",
value1=decimal.Decimal("0.20"),
value2=decimal.Decimal("0.05"))
expected_data = [self.data_by_key[1], self.data_by_key[5],
self.data_by_key[9]]
self.assertEqual(self.cursor.fetchall(), expected_data)
def test_2203_bind_float(self):
"2203 - test binding in a float"
self.cursor.execute("""
select * from TestNumbers
where NumberCol - :value = trunc(NumberCol)""",
value=0.25)
expected_data = [self.data_by_key[1], self.data_by_key[5],
self.data_by_key[9]]
self.assertEqual(self.cursor.fetchall(), expected_data)
def test_2204_bind_integer(self):
"2204 - test binding in an integer"
self.cursor.execute("""
select * from TestNumbers
where IntCol = :value""",
value = 2)
self.assertEqual(self.cursor.fetchall(), [self.data_by_key[2]])
def test_2205_bind_large_long_as_oracle_number(self):
"2205 - test binding in a large long integer as Oracle number"
in_val = 6088343244
value_var = self.cursor.var(oracledb.NUMBER)
value_var.setvalue(0, in_val)
self.cursor.execute("""
begin
:value := :value + 5;
end;""",
value=value_var)
value = value_var.getvalue()
self.assertEqual(value, in_val + 5)
def test_2206_bind_large_long_as_integer(self):
"2206 - test binding in a large long integer as Python integer"
long_value = -9999999999999999999
self.cursor.execute("select :value from dual", value=long_value)
result, = self.cursor.fetchone()
self.assertEqual(result, long_value)
def test_2207_bind_integer_after_string(self):
"2207 - test binding in an integer after setting input sizes to string"
self.cursor.setinputsizes(value=15)
self.cursor.execute("""
select * from TestNumbers
where IntCol = :value""",
value=3)
self.assertEqual(self.cursor.fetchall(), [self.data_by_key[3]])
def test_2208_bind_decimal_after_number(self):
"2208 - test binding in a decimal after setting input sizes to number"
cursor = self.connection.cursor()
value = decimal.Decimal("319438950232418390.273596")
cursor.setinputsizes(value=oracledb.NUMBER)
cursor.outputtypehandler = self.output_type_handler_decimal
cursor.execute("select :value from dual", value=value)
out_value, = cursor.fetchone()
self.assertEqual(out_value, value)
def test_2209_bind_null(self):
"2209 - test binding in a null"
self.cursor.execute("""
select * from TestNumbers
where IntCol = :value""",
value=None)
self.assertEqual(self.cursor.fetchall(), [])
def test_2210_bind_number_array_direct(self):
"2210 - test binding in a number array"
return_value = self.cursor.var(oracledb.NUMBER)
array = [r[2] for r in self.raw_data]
statement = """
begin
:return_value := pkg_TestNumberArrays.TestInArrays(
:start_value, :array);
end;"""
self.cursor.execute(statement, return_value=return_value,
start_value=5, array=array)
self.assertEqual(return_value.getvalue(), 73.75)
array = list(range(15))
self.cursor.execute(statement, start_value=10, array=array)
self.assertEqual(return_value.getvalue(), 115.0)
def test_2211_bind_number_array_by_sizes(self):
"2211 - test binding in a number array (with setinputsizes)"
return_value = self.cursor.var(oracledb.NUMBER)
self.cursor.setinputsizes(array = [oracledb.NUMBER, 10])
array = [r[2] for r in self.raw_data]
self.cursor.execute("""
begin
:return_value := pkg_TestNumberArrays.TestInArrays(
:start_value, :array);
end;""",
return_value=return_value,
start_value=6,
array=array)
self.assertEqual(return_value.getvalue(), 74.75)
def test_2212_bind_number_array_by_var(self):
"2212 - test binding in a number array (with arrayvar)"
return_value = self.cursor.var(oracledb.NUMBER)
array = self.cursor.arrayvar(oracledb.NUMBER,
[r[2] for r in self.raw_data])
self.cursor.execute("""
begin
:return_value := pkg_TestNumberArrays.TestInArrays(
:integer_value, :array);
end;""",
return_value = return_value,
integer_value = 7,
array = array)
self.assertEqual(return_value.getvalue(), 75.75)
def test_2213_bind_zero_length_number_array_by_var(self):
"2213 - test binding in a zero length number array (with arrayvar)"
return_value = self.cursor.var(oracledb.NUMBER)
array = self.cursor.arrayvar(oracledb.NUMBER, 0)
self.cursor.execute("""
begin
:return_value := pkg_TestNumberArrays.TestInArrays(
:integer_value, :array);
end;""",
return_value=return_value,
integer_value=8,
array=array)
self.assertEqual(return_value.getvalue(), 8.0)
self.assertEqual(array.getvalue(), [])
def test_2214_bind_in_out_number_array_by_var(self):
"2214 - test binding in/out a number array (with arrayvar)"
array = self.cursor.arrayvar(oracledb.NUMBER, 10)
original_data = [r[2] for r in self.raw_data]
expected_data = [original_data[i - 1] * 10 for i in range(1, 6)] + \
original_data[5:]
array.setvalue(0, original_data)
self.cursor.execute("""
begin
pkg_TestNumberArrays.TestInOutArrays(:num_elems, :array);
end;""",
num_elems=5,
array=array)
self.assertEqual(array.getvalue(), expected_data)
def test_2215_bind_out_number_array_by_var(self):
"2215 - test binding out a Number array (with arrayvar)"
array = self.cursor.arrayvar(oracledb.NUMBER, 6)
expected_data = [i * 100 for i in range(1, 7)]
self.cursor.execute("""
begin
pkg_TestNumberArrays.TestOutArrays(:num_elems, :array);
end;""",
num_elems=6,
array=array)
self.assertEqual(array.getvalue(), expected_data)
def test_2216_bind_out_set_input_sizes(self):
"2216 - test binding out with set input sizes defined"
bind_vars = self.cursor.setinputsizes(value = oracledb.NUMBER)
self.cursor.execute("""
begin
:value := 5;
end;""")
self.assertEqual(bind_vars["value"].getvalue(), 5)
def test_2217_bind_in_out_set_input_sizes(self):
"2217 - test binding in/out with set input sizes defined"
bind_vars = self.cursor.setinputsizes(value = oracledb.NUMBER)
self.cursor.execute("""
begin
:value := :value + 5;
end;""",
value = 1.25)
self.assertEqual(bind_vars["value"].getvalue(), 6.25)
def test_2218_bind_out_var(self):
"2218 - test binding out with cursor.var() method"
var = self.cursor.var(oracledb.NUMBER)
self.cursor.execute("""
begin
:value := 5;
end;""",
value = var)
self.assertEqual(var.getvalue(), 5)
def test_2219_bind_in_out_var_direct_set(self):
"2219 - test binding in/out with cursor.var() method"
var = self.cursor.var(oracledb.NUMBER)
var.setvalue(0, 2.25)
self.cursor.execute("""
begin
:value := :value + 5;
end;""",
value = var)
self.assertEqual(var.getvalue(), 7.25)
def test_2220_cursor_description(self):
"2220 - test cursor description is accurate"
self.cursor.execute("select * from TestNumbers")
expected_value = [
('INTCOL', oracledb.DB_TYPE_NUMBER, 10, None, 9, 0, 0),
('LONGINTCOL', oracledb.DB_TYPE_NUMBER, 17, None, 16, 0, 0),
('NUMBERCOL', oracledb.DB_TYPE_NUMBER, 13, None, 9, 2, 0),
('FLOATCOL', oracledb.DB_TYPE_NUMBER, 127, None, 126, -127, 0),
('UNCONSTRAINEDCOL', oracledb.DB_TYPE_NUMBER, 127, None, 0, -127,
0),
('NULLABLECOL', oracledb.DB_TYPE_NUMBER, 39, None, 38, 0, 1)
]
self.assertEqual(self.cursor.description, expected_value)
def test_2221_fetchall(self):
"2221 - test that fetching all of the data returns the correct results"
self.cursor.execute("select * From TestNumbers order by IntCol")
self.assertEqual(self.cursor.fetchall(), self.raw_data)
self.assertEqual(self.cursor.fetchall(), [])
def test_2222_fetchmany(self):
"2222 - test that fetching data in chunks returns the correct results"
self.cursor.execute("select * From TestNumbers order by IntCol")
self.assertEqual(self.cursor.fetchmany(3), self.raw_data[0:3])
self.assertEqual(self.cursor.fetchmany(2), self.raw_data[3:5])
self.assertEqual(self.cursor.fetchmany(4), self.raw_data[5:9])
self.assertEqual(self.cursor.fetchmany(3), self.raw_data[9:])
self.assertEqual(self.cursor.fetchmany(3), [])
def test_2223_fetchone(self):
"2223 - test that fetching a single row returns the correct results"
self.cursor.execute("""
select *
from TestNumbers
where IntCol in (3, 4)
order by IntCol""")
self.assertEqual(self.cursor.fetchone(), self.data_by_key[3])
self.assertEqual(self.cursor.fetchone(), self.data_by_key[4])
self.assertEqual(self.cursor.fetchone(), None)
def test_2224_return_as_long(self):
"2224 - test that fetching a long integer returns such in Python"
self.cursor.execute("""
select NullableCol
from TestNumbers
where IntCol = 9""")
col, = self.cursor.fetchone()
self.assertEqual(col, 25004854810776297743)
def test_2225_return_constant_float(self):
"2225 - test fetching a floating point number returns such in Python"
self.cursor.execute("select 1.25 from dual")
result, = self.cursor.fetchone()
self.assertEqual(result, 1.25)
def test_2226_return_constant_integer(self):
"2226 - test that fetching an integer returns such in Python"
self.cursor.execute("select 148 from dual")
result, = self.cursor.fetchone()
self.assertEqual(result, 148)
self.assertTrue(isinstance(result, int), "integer not returned")
def test_2227_acceptable_boundary_numbers(self):
"2227 - test that acceptable boundary numbers are handled properly"
in_values = [decimal.Decimal("9.99999999999999e+125"),
decimal.Decimal("-9.99999999999999e+125"), 0.0, 1e-130,
-1e-130]
out_values = [int("9" * 15 + "0" * 111), -int("9" * 15 + "0" * 111),
0, 1e-130, -1e-130]
for in_value, out_value in zip(in_values, out_values):
self.cursor.execute("select :1 from dual", (in_value,))
result, = self.cursor.fetchone()
self.assertEqual(result, out_value)
def test_2228_unacceptable_boundary_numbers(self):
"2228 - test that unacceptable boundary numbers are rejected"
in_values = [1e126, -1e126, float("inf"), float("-inf"),
float("NaN"), decimal.Decimal("1e126"),
decimal.Decimal("-1e126"), decimal.Decimal("inf"),
decimal.Decimal("-inf"), decimal.Decimal("NaN")]
no_rep_err = "value cannot be represented as an Oracle number"
invalid_err = "invalid number"
expected_errors = [no_rep_err, no_rep_err, invalid_err, invalid_err,
invalid_err, no_rep_err, no_rep_err, invalid_err,
invalid_err, invalid_err]
for in_value, error in zip(in_values, expected_errors):
self.assertRaisesRegex(oracledb.DatabaseError, error,
self.cursor.execute, "select :1 from dual",
(in_value,))
def test_2229_return_float_from_division(self):
"2229 - test that fetching the result of division returns a float"
self.cursor.execute("""
select IntCol / 7
from TestNumbers
where IntCol = 1""")
result, = self.cursor.fetchone()
self.assertEqual(result, 1.0 / 7.0)
self.assertTrue(isinstance(result, float), "float not returned")
def test_2230_string_format(self):
"2230 - test that string format is returned properly"
var = self.cursor.var(oracledb.NUMBER)
self.assertEqual(str(var),
"<cx_Oracle.Var of type DB_TYPE_NUMBER with value None>")
var.setvalue(0, 4)
self.assertEqual(str(var),
"<cx_Oracle.Var of type DB_TYPE_NUMBER with value 4.0>")
def test_2231_bind_binary_double(self):
"2231 - test that binding binary double is possible"
statement = "select :1 from dual"
self.cursor.setinputsizes(oracledb.DB_TYPE_BINARY_DOUBLE)
self.cursor.execute(statement, (5,))
self.assertEqual(self.cursor.bindvars[0].type,
oracledb.DB_TYPE_BINARY_DOUBLE)
value, = self.cursor.fetchone()
self.assertEqual(value, 5)
self.cursor.execute(statement, (1.5,))
self.assertEqual(self.cursor.bindvars[0].type,
oracledb.DB_TYPE_BINARY_DOUBLE)
value, = self.cursor.fetchone()
self.assertEqual(value, 1.5)
self.cursor.execute(statement, (decimal.Decimal("NaN"),))
self.assertEqual(self.cursor.bindvars[0].type,
oracledb.DB_TYPE_BINARY_DOUBLE)
value, = self.cursor.fetchone()
self.assertEqual(str(value), str(float("NaN")))
def test_2232_fetch_binary_int(self):
"2232 - test fetching numbers as binary integers"
self.cursor.outputtypehandler = self.output_type_handler_binary_int
for value in (1, 2 ** 31, 2 ** 63 - 1, -1, -2 ** 31, -2 ** 63 + 1):
self.cursor.execute("select :1 from dual", [str(value)])
fetched_value, = self.cursor.fetchone()
self.assertEqual(value, fetched_value)
def test_2233_out_bind_binary_int(self):
"2233 - test binding native integer as an out bind"
statement = "begin :value := 2.9; end;"
simple_var = self.cursor.var(oracledb.DB_TYPE_BINARY_INTEGER)
self.cursor.execute(statement, [simple_var])
self.assertEqual(simple_var.getvalue(), 2)
statement = "begin :value := 1.5; end;"
simple_var = self.cursor.var(oracledb.DB_TYPE_BINARY_INTEGER)
self.cursor.execute(statement, [simple_var])
self.assertEqual(simple_var.getvalue(), 1)
def test_2234_in_bind_binary_int(self):
"2234 - test binding in a native integer"
statement = "begin :value := :value + 2.5; end;"
simple_var = self.cursor.var(oracledb.DB_TYPE_BINARY_INTEGER)
simple_var.setvalue(0, 0)
self.cursor.execute(statement, [simple_var])
self.assertEqual(simple_var.getvalue(), 2)
simple_var.setvalue(0, -5)
self.cursor.execute(statement, [simple_var])
self.assertEqual(simple_var.getvalue(), -2)
def test_2235_setting_decimal_value_binary_int(self):
"2235 - test setting decimal value for binary int"
statement = "begin :value := :value + 2.5; end;"
simple_var = self.cursor.var(oracledb.DB_TYPE_BINARY_INTEGER)
simple_var.setvalue(0, 2.5)
self.cursor.execute(statement, [simple_var])
self.assertEqual(simple_var.getvalue(), 4)
def test_2236_out_bind_binary_int_with_large_value(self):
"2236 - bind a large value to binary int"
statement = "begin :value := POWER(2, 31) - 1; end;"
simple_var = self.cursor.var(oracledb.DB_TYPE_BINARY_INTEGER)
self.cursor.execute(statement, [simple_var])
self.assertEqual(simple_var.getvalue(), 2**31 - 1)
statement = "begin :value := POWER(-2, 31) - 1; end;"
self.cursor.execute(statement, [simple_var])
self.assertEqual(simple_var.getvalue(), -2**31 - 1)
if __name__ == "__main__":
test_env.run_test_cases()