You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
2.7 KiB
83 lines
2.7 KiB
#!/usr/bin/python2 |
|
# -*- coding: utf-8 -*- |
|
|
|
#Copyright 2008-2010 Carl Gherardi |
|
#This program is free software: you can redistribute it and/or modify |
|
#it under the terms of the GNU Affero General Public License as published by |
|
#the Free Software Foundation, version 3 of the License. |
|
# |
|
#This program is distributed in the hope that it will be useful, |
|
#but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
#GNU General Public License for more details. |
|
# |
|
#You should have received a copy of the GNU Affero General Public License |
|
#along with this program. If not, see <http://www.gnu.org/licenses/>. |
|
#In the "official" distribution you can find the license in agpl-3.0.txt. |
|
|
|
import sqlite3 |
|
import Database |
|
import math |
|
|
|
# Should probably use our wrapper classes - creating sqlite db in memory |
|
sqlite3.register_converter("bool", lambda x: bool(int(x))) |
|
sqlite3.register_adapter(bool, lambda x: "1" if x else "0") |
|
|
|
con = sqlite3.connect(":memory:") |
|
con.isolation_level = None |
|
|
|
#Floor function |
|
con.create_function("floor", 1, math.floor) |
|
|
|
#Mod function |
|
tmp = Database.sqlitemath() |
|
con.create_function("mod", 2, tmp.mod) |
|
|
|
# Aggregate function VARIANCE() |
|
con.create_aggregate("variance", 1, Database.VARIANCE) |
|
|
|
|
|
cur = con.cursor() |
|
|
|
def testSQLiteVarianceFunction(): |
|
cur.execute("CREATE TABLE test(i)") |
|
cur.execute("INSERT INTO test(i) values (1)") |
|
cur.execute("INSERT INTO test(i) values (2)") |
|
cur.execute("INSERT INTO test(i) values (3)") |
|
cur.execute("SELECT variance(i) from test") |
|
result = cur.fetchone()[0] |
|
|
|
print "DEBUG: Testing variance function" |
|
print "DEBUG: result: %s expecting: 0.666666 (result-expecting ~= 0.0): %s" % (result, (result - 0.66666)) |
|
cur.execute("DROP TABLE test") |
|
assert (result - 0.66666) <= 0.0001 |
|
|
|
def testSQLiteFloorFunction(): |
|
vars = [0.1, 1.5, 2.6, 3.5, 4.9] |
|
cur.execute("CREATE TABLE test(i float)") |
|
for var in vars: |
|
cur.execute("INSERT INTO test(i) values(%f)" % var) |
|
cur.execute("SELECT floor(i) from test") |
|
result = cur.fetchall() |
|
print "DEBUG: result: %s" % result |
|
answer = 0 |
|
for i in result: |
|
print "DEBUG: int(var): %s" % int(i[0]) |
|
assert answer == int(i[0]) |
|
answer = answer + 1 |
|
cur.execute("DROP TABLE test") |
|
|
|
def testSQLiteModFunction(): |
|
vars = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 ,17, 18] |
|
cur.execute("CREATE TABLE test(i int)") |
|
for var in vars: |
|
cur.execute("INSERT INTO test(i) values(%i)" % var) |
|
cur.execute("SELECT mod(i,13) from test") |
|
result = cur.fetchall() |
|
idx = 0 |
|
for i in result: |
|
print "DEBUG: int(var): %s" % i[0] |
|
assert vars[idx]%13 == int(i[0]) |
|
idx = idx+1 |
|
|
|
cur.execute("DROP TABLE test")
|
|
|