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# This file is part of python-sql. The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.
import unittest
import warnings
from array import array
from sql import Flavor, Literal, Null, Table
from sql.operators import (
Abs, And, Between, Div, Equal, Exists, FloorDiv, Greater, GreaterEqual,
ILike, In, Is, IsDistinct, IsNot, IsNotDistinct, Less, LessEqual, Like,
LShift, Mod, Mul, Neg, Not, NotBetween, NotEqual, NotILike, NotIn, NotLike,
Or, Pos, Pow, RShift, Sub)
class TestOperators(unittest.TestCase):
table = Table('t')
def test_and(self):
for and_ in [And((self.table.c1, self.table.c2)),
self.table.c1 & self.table.c2]:
self.assertEqual(str(and_), '("c1" AND "c2")')
self.assertEqual(and_.params, ())
and_ = And((Literal(True), self.table.c2))
self.assertEqual(str(and_), '(%s AND "c2")')
self.assertEqual(and_.params, (True,))
and_ = And((Literal(True), 'foo'))
self.assertEqual(str(and_), '(%s AND %s)')
self.assertEqual(and_.params, (True, 'foo'))
def test_operator_operators(self):
and_ = And((Literal(True), self.table.c1))
and2 = and_ & And((Literal(True), self.table.c2))
self.assertEqual(str(and2), '((%s AND "c1") AND %s AND "c2")')
self.assertEqual(and2.params, (True, True))
and3 = and_ & Literal(True)
self.assertEqual(str(and3), '((%s AND "c1") AND %s)')
self.assertEqual(and3.params, (True, True))
or_ = Or((Literal(True), self.table.c1))
or2 = or_ | Or((Literal(True), self.table.c2))
self.assertEqual(str(or2), '((%s OR "c1") OR %s OR "c2")')
self.assertEqual(or2.params, (True, True))
or3 = or_ | Literal(True)
self.assertEqual(str(or3), '((%s OR "c1") OR %s)')
self.assertEqual(or3.params, (True, True))
def test_operator_compat_column(self):
and_ = And((self.table.c1, self.table.c2))
self.assertEqual(and_.table, '')
self.assertEqual(and_.name, '')
def test_or(self):
for or_ in [Or((self.table.c1, self.table.c2)),
self.table.c1 | self.table.c2]:
self.assertEqual(str(or_), '("c1" OR "c2")')
self.assertEqual(or_.params, ())
def test_not(self):
for not_ in [Not(self.table.c), ~self.table.c]:
self.assertEqual(str(not_), '(NOT "c")')
self.assertEqual(not_.params, ())
not_ = Not(Literal(False))
self.assertEqual(str(not_), '(NOT %s)')
self.assertEqual(not_.params, (False,))
def test_neg(self):
for neg in [Neg(self.table.c1), -self.table.c1]:
self.assertEqual(str(neg), '(- "c1")')
self.assertEqual(neg.params, ())
def test_pos(self):
for pos in [Pos(self.table.c1), +self.table.c1]:
self.assertEqual(str(pos), '(+ "c1")')
self.assertEqual(pos.params, ())
def test_less(self):
for less in [Less(self.table.c1, self.table.c2),
self.table.c1 < self.table.c2,
~GreaterEqual(self.table.c1, self.table.c2)]:
self.assertEqual(str(less), '("c1" < "c2")')
self.assertEqual(less.params, ())
less = Less(Literal(0), self.table.c2)
self.assertEqual(str(less), '(%s < "c2")')
self.assertEqual(less.params, (0,))
def test_greater(self):
for greater in [Greater(self.table.c1, self.table.c2),
self.table.c1 > self.table.c2,
~LessEqual(self.table.c1, self.table.c2)]:
self.assertEqual(str(greater), '("c1" > "c2")')
self.assertEqual(greater.params, ())
def test_less_equal(self):
for less in [LessEqual(self.table.c1, self.table.c2),
self.table.c1 <= self.table.c2,
~Greater(self.table.c1, self.table.c2)]:
self.assertEqual(str(less), '("c1" <= "c2")')
self.assertEqual(less.params, ())
def test_greater_equal(self):
for greater in [GreaterEqual(self.table.c1, self.table.c2),
self.table.c1 >= self.table.c2,
~Less(self.table.c1, self.table.c2)]:
self.assertEqual(str(greater), '("c1" >= "c2")')
self.assertEqual(greater.params, ())
def test_equal(self):
for equal in [Equal(self.table.c1, self.table.c2),
self.table.c1 == self.table.c2,
~NotEqual(self.table.c1, self.table.c2)]:
self.assertEqual(str(equal), '("c1" = "c2")')
self.assertEqual(equal.params, ())
equal = Equal(Literal('foo'), Literal('bar'))
self.assertEqual(str(equal), '(%s = %s)')
self.assertEqual(equal.params, ('foo', 'bar'))
equal = Equal(self.table.c1, Null)
self.assertEqual(str(equal), '("c1" IS NULL)')
self.assertEqual(equal.params, ())
equal = Equal(Literal('test'), Null)
self.assertEqual(str(equal), '(%s IS NULL)')
self.assertEqual(equal.params, ('test',))
equal = Equal(Null, self.table.c1)
self.assertEqual(str(equal), '("c1" IS NULL)')
self.assertEqual(equal.params, ())
equal = Equal(Null, Literal('test'))
self.assertEqual(str(equal), '(%s IS NULL)')
self.assertEqual(equal.params, ('test',))
def test_not_equal(self):
for equal in [NotEqual(self.table.c1, self.table.c2),
self.table.c1 != self.table.c2,
~Equal(self.table.c1, self.table.c2)]:
self.assertEqual(str(equal), '("c1" != "c2")')
self.assertEqual(equal.params, ())
equal = NotEqual(self.table.c1, Null)
self.assertEqual(str(equal), '("c1" IS NOT NULL)')
self.assertEqual(equal.params, ())
equal = NotEqual(Null, self.table.c1)
self.assertEqual(str(equal), '("c1" IS NOT NULL)')
self.assertEqual(equal.params, ())
def test_between(self):
for between in [Between(self.table.c1, 1, 2),
~NotBetween(self.table.c1, 1, 2)]:
self.assertEqual(str(between), '("c1" BETWEEN %s AND %s)')
self.assertEqual(between.params, (1, 2))
between = Between(
self.table.c1, self.table.c2, self.table.c3, symmetric=True)
self.assertEqual(
str(between), '("c1" BETWEEN SYMMETRIC "c2" AND "c3")')
self.assertEqual(between.params, ())
def test_not_between(self):
for between in [NotBetween(self.table.c1, 1, 2),
~Between(self.table.c1, 1, 2)]:
self.assertEqual(str(between), '("c1" NOT BETWEEN %s AND %s)')
self.assertEqual(between.params, (1, 2))
between = NotBetween(
self.table.c1, self.table.c2, self.table.c3, symmetric=True)
self.assertEqual(
str(between), '("c1" NOT BETWEEN SYMMETRIC "c2" AND "c3")')
self.assertEqual(between.params, ())
def test_is_distinct(self):
for distinct in [IsDistinct(self.table.c1, self.table.c2),
~IsNotDistinct(self.table.c1, self.table.c2)]:
self.assertEqual(str(distinct), '("c1" IS DISTINCT FROM "c2")')
self.assertEqual(distinct.params, ())
def test_is_not_distinct(self):
for distinct in [IsNotDistinct(self.table.c1, self.table.c2),
~IsDistinct(self.table.c1, self.table.c2)]:
self.assertEqual(str(distinct), '("c1" IS NOT DISTINCT FROM "c2")')
self.assertEqual(distinct.params, ())
def test_is(self):
for is_ in [Is(self.table.c1, None),
~IsNot(self.table.c1, None)]:
self.assertEqual(str(is_), '("c1" IS UNKNOWN)')
self.assertEqual(is_.params, ())
for is_ in [Is(self.table.c1, True),
~IsNot(self.table.c1, True)]:
self.assertEqual(str(is_), '("c1" IS TRUE)')
self.assertEqual(is_.params, ())
for is_ in [Is(self.table.c1, False),
~IsNot(self.table.c1, False)]:
self.assertEqual(str(is_), '("c1" IS FALSE)')
self.assertEqual(is_.params, ())
def test_is_not(self):
for is_ in [IsNot(self.table.c1, None),
~Is(self.table.c1, None)]:
self.assertEqual(str(is_), '("c1" IS NOT UNKNOWN)')
self.assertEqual(is_.params, ())
for is_ in [IsNot(self.table.c1, True),
~Is(self.table.c1, True)]:
self.assertEqual(str(is_), '("c1" IS NOT TRUE)')
self.assertEqual(is_.params, ())
for is_ in [IsNot(self.table.c1, False),
~Is(self.table.c1, False)]:
self.assertEqual(str(is_), '("c1" IS NOT FALSE)')
self.assertEqual(is_.params, ())
def test_sub(self):
for sub in [Sub(self.table.c1, self.table.c2),
self.table.c1 - self.table.c2]:
self.assertEqual(str(sub), '("c1" - "c2")')
self.assertEqual(sub.params, ())
def test_mul(self):
for mul in [Mul(self.table.c1, self.table.c2),
self.table.c1 * self.table.c2]:
self.assertEqual(str(mul), '("c1" * "c2")')
self.assertEqual(mul.params, ())
def test_div(self):
for div in [Div(self.table.c1, self.table.c2),
self.table.c1 / self.table.c2]:
self.assertEqual(str(div), '("c1" / "c2")')
self.assertEqual(div.params, ())
def test_mod(self):
for mod in [Mod(self.table.c1, self.table.c2),
self.table.c1 % self.table.c2]:
self.assertEqual(str(mod), '("c1" %% "c2")')
self.assertEqual(mod.params, ())
def test_mod_paramstyle(self):
flavor = Flavor(paramstyle='format')
Flavor.set(flavor)
try:
mod = Mod(self.table.c1, self.table.c2)
self.assertEqual(str(mod), '("c1" %% "c2")')
self.assertEqual(mod.params, ())
finally:
Flavor.set(Flavor())
flavor = Flavor(paramstyle='qmark')
Flavor.set(flavor)
try:
mod = Mod(self.table.c1, self.table.c2)
self.assertEqual(str(mod), '("c1" % "c2")')
self.assertEqual(mod.params, ())
finally:
Flavor.set(Flavor())
def test_pow(self):
for pow_ in [Pow(self.table.c1, self.table.c2),
self.table.c1 ** self.table.c2]:
self.assertEqual(str(pow_), '("c1" ^ "c2")')
self.assertEqual(pow_.params, ())
def test_abs(self):
for abs_ in [Abs(self.table.c1), abs(self.table.c1)]:
self.assertEqual(str(abs_), '(@ "c1")')
self.assertEqual(abs_.params, ())
def test_lshift(self):
for lshift in [LShift(self.table.c1, 2),
self.table.c1 << 2]:
self.assertEqual(str(lshift), '("c1" << %s)')
self.assertEqual(lshift.params, (2,))
def test_rshift(self):
for rshift in [RShift(self.table.c1, 2),
self.table.c1 >> 2]:
self.assertEqual(str(rshift), '("c1" >> %s)')
self.assertEqual(rshift.params, (2,))
def test_like(self):
for like in [Like(self.table.c1, 'foo'),
self.table.c1.like('foo'),
~NotLike(self.table.c1, 'foo'),
~~Like(self.table.c1, 'foo')]:
self.assertEqual(str(like), '("c1" LIKE %s ESCAPE %s)')
self.assertEqual(like.params, ('foo', '\\'))
def test_like_escape(self):
like = Like(self.table.c1, 'foo', escape='$')
self.assertEqual(str(like), '("c1" LIKE %s ESCAPE %s)')
self.assertEqual(like.params, ('foo', '$'))
def test_like_escape_empty_false(self):
flavor = Flavor(escape_empty=False)
Flavor.set(flavor)
try:
like = Like(self.table.c1, 'foo', escape='')
self.assertEqual(str(like), '("c1" LIKE %s)')
self.assertEqual(like.params, ('foo',))
finally:
Flavor.set(Flavor())
def test_like_escape_empty_true(self):
flavor = Flavor(escape_empty=True)
Flavor.set(flavor)
try:
like = Like(self.table.c1, 'foo', escape='')
self.assertEqual(str(like), '("c1" LIKE %s ESCAPE %s)')
self.assertEqual(like.params, ('foo', ''))
finally:
Flavor.set(Flavor())
def test_ilike(self):
flavor = Flavor(ilike=True)
Flavor.set(flavor)
try:
for like in [ILike(self.table.c1, 'foo'),
self.table.c1.ilike('foo'),
~NotILike(self.table.c1, 'foo')]:
self.assertEqual(str(like), '("c1" ILIKE %s ESCAPE %s)')
self.assertEqual(like.params, ('foo', '\\'))
finally:
Flavor.set(Flavor())
flavor = Flavor(ilike=False)
Flavor.set(flavor)
try:
like = ILike(self.table.c1, 'foo')
self.assertEqual(
str(like), '(UPPER("c1") LIKE UPPER(%s) ESCAPE %s)')
self.assertEqual(like.params, ('foo', '\\'))
finally:
Flavor.set(Flavor())
def test_not_ilike(self):
flavor = Flavor(ilike=True)
Flavor.set(flavor)
try:
for like in [NotILike(self.table.c1, 'foo'),
~self.table.c1.ilike('foo')]:
self.assertEqual(str(like), '("c1" NOT ILIKE %s ESCAPE %s)')
self.assertEqual(like.params, ('foo', '\\'))
finally:
Flavor.set(Flavor())
flavor = Flavor(ilike=False)
Flavor.set(flavor)
try:
like = NotILike(self.table.c1, 'foo')
self.assertEqual(
str(like), '(UPPER("c1") NOT LIKE UPPER(%s) ESCAPE %s)')
self.assertEqual(like.params, ('foo', '\\'))
finally:
Flavor.set(Flavor())
def test_in(self):
for in_ in [In(self.table.c1, [self.table.c2, 1, Null]),
~NotIn(self.table.c1, [self.table.c2, 1, Null]),
~~In(self.table.c1, [self.table.c2, 1, Null])]:
self.assertEqual(str(in_), '("c1" IN ("c2", %s, %s))')
self.assertEqual(in_.params, (1, None))
t2 = Table('t2')
in_ = In(self.table.c1, t2.select(t2.c2))
self.assertEqual(str(in_),
'("c1" IN (SELECT "a"."c2" FROM "t2" AS "a"))')
self.assertEqual(in_.params, ())
in_ = In(self.table.c1, t2.select(t2.c2) | t2.select(t2.c3))
self.assertEqual(str(in_),
'("c1" IN (SELECT "a"."c2" FROM "t2" AS "a" '
'UNION SELECT "a"."c3" FROM "t2" AS "a"))')
self.assertEqual(in_.params, ())
in_ = In(self.table.c1, array('l', list(range(10))))
self.assertEqual(str(in_),
'("c1" IN (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s))')
self.assertEqual(in_.params, tuple(range(10)))
def test_exists(self):
exists = Exists(self.table.select(self.table.c1,
where=self.table.c1 == 1))
self.assertEqual(str(exists),
'(EXISTS (SELECT "a"."c1" FROM "t" AS "a" '
'WHERE ("a"."c1" = %s)))')
self.assertEqual(exists.params, (1,))
def test_floordiv(self):
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter("always")
FloorDiv(4, 2)
self.assertEqual(len(w), 1)
self.assertTrue(issubclass(w[-1].category, DeprecationWarning))
if hasattr(self, 'assertIn'):
self.assertIn(
'FloorDiv operator is deprecated, use Div function',
str(w[-1].message))
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