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test_2100_nchar_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.
#------------------------------------------------------------------------------
"""
2100 - Module for testing NCHAR variables
"""
import test_env
import cx_Oracle as oracledb
class TestCase(test_env.BaseTestCase):
def setUp(self):
super().setUp()
self.raw_data = []
self.data_by_key = {}
for i in range(1, 11):
unicode_col = "Unicode \u3042 %d" % i
fixed_char_col = ("Fixed Unicode %d" % i).ljust(40)
if i % 2:
nullable_col = "Nullable %d" % i
else:
nullable_col = None
data_tuple = (i, unicode_col, fixed_char_col, nullable_col)
self.raw_data.append(data_tuple)
self.data_by_key[i] = data_tuple
def test_2100_unicode_length(self):
"2100 - test value length"
return_value = self.cursor.var(int)
self.cursor.execute("""
begin
:retval := LENGTH(:value);
end;""",
value="InVal \u3042",
retval=return_value)
self.assertEqual(return_value.getvalue(), 7)
def test_2101_bind_unicode(self):
"2101 - test binding in a unicode"
self.cursor.setinputsizes(value=oracledb.DB_TYPE_NVARCHAR)
self.cursor.execute("""
select * from TestUnicodes
where UnicodeCol = :value""",
value="Unicode \u3042 5")
self.assertEqual(self.cursor.fetchall(), [self.data_by_key[5]])
def test_2102_bind_different_var(self):
"2102 - test binding a different variable on second execution"
retval_1 = self.cursor.var(oracledb.DB_TYPE_NVARCHAR, 30)
retval_2 = self.cursor.var(oracledb.DB_TYPE_NVARCHAR, 30)
self.cursor.execute(r"begin :retval := unistr('Called \3042'); end;",
retval=retval_1)
self.assertEqual(retval_1.getvalue(), "Called \u3042")
self.cursor.execute("begin :retval := 'Called'; end;", retval=retval_2)
self.assertEqual(retval_2.getvalue(), "Called")
def test_2103_bind_unicode_after_number(self):
"2103 - test binding in a string after setting input sizes to a number"
unicode_val = self.cursor.var(oracledb.DB_TYPE_NVARCHAR)
unicode_val.setvalue(0, "Unicode \u3042 6")
self.cursor.setinputsizes(value=oracledb.NUMBER)
self.cursor.execute("""
select * from TestUnicodes
where UnicodeCol = :value""",
value=unicode_val)
self.assertEqual(self.cursor.fetchall(), [self.data_by_key[6]])
def test_2104_bind_unicode_array_direct(self):
"2104 - test binding in a unicode array"
return_value = self.cursor.var(oracledb.NUMBER)
array = [r[1] for r in self.raw_data]
array_var = self.cursor.arrayvar(oracledb.DB_TYPE_NVARCHAR, array)
statement = """
begin
:retval := pkg_TestUnicodeArrays.TestInArrays(
:integer_value, :array);
end;"""
self.cursor.execute(statement, retval=return_value, integer_value=5,
array=array_var)
self.assertEqual(return_value.getvalue(), 116)
array = ["Unicode - \u3042 %d" % i for i in range(15)]
array_var = self.cursor.arrayvar(oracledb.DB_TYPE_NVARCHAR, array)
self.cursor.execute(statement, integer_value=8, array=array_var)
self.assertEqual(return_value.getvalue(), 208)
def test_2105_bind_unicode_array_by_sizes(self):
"2105 - test binding in a unicode array (with setinputsizes)"
return_value = self.cursor.var(oracledb.NUMBER)
self.cursor.setinputsizes(array = [oracledb.DB_TYPE_NVARCHAR, 10])
array = [r[1] for r in self.raw_data]
self.cursor.execute("""
begin
:retval := pkg_TestUnicodeArrays.TestInArrays(:integer_value,
:array);
end;""",
retval=return_value,
integer_value=6,
array=array)
self.assertEqual(return_value.getvalue(), 117)
def test_2106_bind_unicode_array_by_var(self):
"2106 - test binding in a unicode array (with arrayvar)"
return_value = self.cursor.var(oracledb.NUMBER)
array = self.cursor.arrayvar(oracledb.DB_TYPE_NVARCHAR, 10, 20)
array.setvalue(0, [r[1] for r in self.raw_data])
self.cursor.execute("""
begin
:retval := pkg_TestUnicodeArrays.TestInArrays(:integer_value,
:array);
end;""",
retval=return_value,
integer_value=7,
array=array)
self.assertEqual(return_value.getvalue(), 118)
def test_2107_bind_in_out_unicode_array_by_var(self):
"2107 - test binding in/out a unicode array (with arrayvar)"
array = self.cursor.arrayvar(oracledb.DB_TYPE_NVARCHAR, 10, 100)
original_data = [r[1] for r in self.raw_data]
fmt = "Converted element \u3042 # %d originally had length %d"
expected_data = [fmt % (i, len(original_data[i - 1])) \
for i in range(1, 6)] + original_data[5:]
array.setvalue(0, original_data)
self.cursor.execute("""
begin
pkg_TestUnicodeArrays.TestInOutArrays(:numElems, :array);
end;""",
numElems = 5,
array = array)
self.assertEqual(array.getvalue(), expected_data)
def test_2108_bind_out_unicode_array_by_var(self):
"2108 - test binding out a unicode array (with arrayvar)"
array = self.cursor.arrayvar(oracledb.DB_TYPE_NVARCHAR, 6, 100)
fmt = "Test out element \u3042 # %d"
expected_data = [fmt % i for i in range(1, 7)]
self.cursor.execute("""
begin
pkg_TestUnicodeArrays.TestOutArrays(:numElems, :array);
end;""",
numElems = 6,
array = array)
self.assertEqual(array.getvalue(), expected_data)
def test_2109_bind_null(self):
"2109 - test binding in a null"
self.cursor.execute("""
select * from TestUnicodes
where UnicodeCol = :value""",
value = None)
self.assertEqual(self.cursor.fetchall(), [])
def test_2110_bind_out_set_input_sizes_by_type(self):
"2110 - test binding out with set input sizes defined (by type)"
bind_vars = self.cursor.setinputsizes(value=oracledb.DB_TYPE_NVARCHAR)
self.cursor.execute(r"""
begin
:value := unistr('TSI \3042');
end;""")
self.assertEqual(bind_vars["value"].getvalue(), "TSI \u3042")
def test_2111_bind_in_out_set_input_sizes_by_type(self):
"2111 - test binding in/out with set input sizes defined (by type)"
bind_vars = self.cursor.setinputsizes(value=oracledb.DB_TYPE_NVARCHAR)
self.cursor.execute(r"""
begin
:value := :value || unistr(' TSI \3042');
end;""",
value = "InVal \u3041")
self.assertEqual(bind_vars["value"].getvalue(),
"InVal \u3041 TSI \u3042")
def test_2112_bind_out_var(self):
"2112 - test binding out with cursor.var() method"
var = self.cursor.var(oracledb.DB_TYPE_NVARCHAR)
self.cursor.execute(r"""
begin
:value := unistr('TSI (VAR) \3042');
end;""",
value=var)
self.assertEqual(var.getvalue(), "TSI (VAR) \u3042")
def test_2113_bind_in_out_var_direct_set(self):
"2113 - test binding in/out with cursor.var() method"
var = self.cursor.var(oracledb.DB_TYPE_NVARCHAR)
var.setvalue(0, "InVal \u3041")
self.cursor.execute(r"""
begin
:value := :value || unistr(' TSI (VAR) \3042');
end;""",
value = var)
self.assertEqual(var.getvalue(), "InVal \u3041 TSI (VAR) \u3042")
def test_2114_cursor_description(self):
"2114 - test cursor description is accurate"
self.cursor.execute("select * from TestUnicodes")
expected_value = [
('INTCOL', oracledb.DB_TYPE_NUMBER, 10, None, 9, 0, 0),
('UNICODECOL', oracledb.DB_TYPE_NVARCHAR, 20, 80, None, None, 0),
('FIXEDUNICODECOL', oracledb.DB_TYPE_NCHAR, 40, 160, None, None, 0),
('NULLABLECOL', oracledb.DB_TYPE_NVARCHAR, 50, 200, None, None, 1)
]
self.assertEqual(self.cursor.description, expected_value)
def test_2115_fetchall(self):
"2115 - test that fetching all of the data returns the correct results"
self.cursor.execute("select * From TestUnicodes order by IntCol")
self.assertEqual(self.cursor.fetchall(), self.raw_data)
self.assertEqual(self.cursor.fetchall(), [])
def test_2116_fetchmany(self):
"2116 - test that fetching data in chunks returns the correct results"
self.cursor.execute("select * From TestUnicodes 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_2117_fetchone(self):
"2117 - test that fetching a single row returns the correct results"
self.cursor.execute("""
select *
from TestUnicodes
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)
if __name__ == "__main__":
test_env.run_test_cases()