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# -*- coding: utf-8 -*-
#
# Copyright (c) 2015, Cédric Krier
# Copyright (c) 2015, B2CK
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the <organization> nor the
# names of its contributors may be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import unittest
from sql import Window, Table
class TestWindow(unittest.TestCase):
def test_window(self):
t = Table('t')
window = Window([t.c1, t.c2])
self.assertEqual(str(window), 'PARTITION BY "c1", "c2"')
self.assertEqual(window.params, ())
def test_window_order(self):
t = Table('t')
window = Window([t.c], order_by=t.c)
self.assertEqual(str(window), 'PARTITION BY "c" ORDER BY "c"')
self.assertEqual(window.params, ())
def test_window_range(self):
t = Table('t')
window = Window([t.c], frame='RANGE')
self.assertEqual(str(window),
'PARTITION BY "c" RANGE '
'BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW')
self.assertEqual(window.params, ())
window.start = -1
self.assertEqual(str(window),
'PARTITION BY "c" RANGE '
'BETWEEN 1 PRECEDING AND CURRENT ROW')
self.assertEqual(window.params, ())
window.start = 0
window.end = 1
self.assertEqual(str(window),
'PARTITION BY "c" RANGE '
'BETWEEN CURRENT ROW AND 1 FOLLOWING')
self.assertEqual(window.params, ())
window.start = 1
window.end = None
self.assertEqual(str(window),
'PARTITION BY "c" RANGE '
'BETWEEN 1 FOLLOWING AND UNBOUNDED FOLLOWING')
self.assertEqual(window.params, ())
def test_window_rows(self):
t = Table('t')
window = Window([t.c], frame='ROWS')
self.assertEqual(str(window),
'PARTITION BY "c" ROWS '
'BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW')
self.assertEqual(window.params, ())
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