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https://github.com/psycopg/psycopg2.git
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fcc083dc12
There is no need to import testutils.unittest instead of simply unittest. They are simple aliases. Use system unittest to be more regular, consistent as well as idiomatic with the wider Python community.
243 lines
9.1 KiB
Python
Executable File
243 lines
9.1 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# test_fast_executemany.py - tests for fast executemany implementations
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#
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# Copyright (C) 2017 Daniele Varrazzo <daniele.varrazzo@gmail.com>
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#
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# psycopg2 is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# psycopg2 is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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# License for more details.
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from datetime import date
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import testutils
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import unittest
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import psycopg2
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import psycopg2.extras
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import psycopg2.extensions as ext
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class TestPaginate(unittest.TestCase):
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def test_paginate(self):
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def pag(seq):
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return psycopg2.extras._paginate(seq, 100)
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self.assertEqual(list(pag([])), [])
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self.assertEqual(list(pag([1])), [[1]])
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self.assertEqual(list(pag(range(99))), [list(range(99))])
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self.assertEqual(list(pag(range(100))), [list(range(100))])
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self.assertEqual(list(pag(range(101))), [list(range(100)), [100]])
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self.assertEqual(
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list(pag(range(200))), [list(range(100)), list(range(100, 200))])
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self.assertEqual(
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list(pag(range(1000))),
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[list(range(i * 100, (i + 1) * 100)) for i in range(10)])
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class FastExecuteTestMixin(object):
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def setUp(self):
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super(FastExecuteTestMixin, self).setUp()
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cur = self.conn.cursor()
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cur.execute("""create table testfast (
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id serial primary key, date date, val int, data text)""")
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class TestExecuteBatch(FastExecuteTestMixin, testutils.ConnectingTestCase):
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def test_empty(self):
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cur = self.conn.cursor()
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psycopg2.extras.execute_batch(cur,
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"insert into testfast (id, val) values (%s, %s)",
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[])
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cur.execute("select * from testfast order by id")
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self.assertEqual(cur.fetchall(), [])
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def test_one(self):
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cur = self.conn.cursor()
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psycopg2.extras.execute_batch(cur,
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"insert into testfast (id, val) values (%s, %s)",
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iter([(1, 10)]))
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cur.execute("select id, val from testfast order by id")
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self.assertEqual(cur.fetchall(), [(1, 10)])
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def test_tuples(self):
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cur = self.conn.cursor()
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psycopg2.extras.execute_batch(cur,
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"insert into testfast (id, date, val) values (%s, %s, %s)",
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((i, date(2017, 1, i + 1), i * 10) for i in range(10)))
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cur.execute("select id, date, val from testfast order by id")
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self.assertEqual(cur.fetchall(),
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[(i, date(2017, 1, i + 1), i * 10) for i in range(10)])
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def test_many(self):
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cur = self.conn.cursor()
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psycopg2.extras.execute_batch(cur,
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"insert into testfast (id, val) values (%s, %s)",
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((i, i * 10) for i in range(1000)))
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cur.execute("select id, val from testfast order by id")
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self.assertEqual(cur.fetchall(), [(i, i * 10) for i in range(1000)])
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def test_pages(self):
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cur = self.conn.cursor()
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psycopg2.extras.execute_batch(cur,
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"insert into testfast (id, val) values (%s, %s)",
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((i, i * 10) for i in range(25)),
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page_size=10)
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# last command was 5 statements
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self.assertEqual(sum(c == u';' for c in cur.query.decode('ascii')), 4)
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cur.execute("select id, val from testfast order by id")
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self.assertEqual(cur.fetchall(), [(i, i * 10) for i in range(25)])
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@testutils.skip_before_postgres(8, 0)
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def test_unicode(self):
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cur = self.conn.cursor()
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ext.register_type(ext.UNICODE, cur)
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snowman = u"\u2603"
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# unicode in statement
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psycopg2.extras.execute_batch(cur,
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"insert into testfast (id, data) values (%%s, %%s) -- %s" % snowman,
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[(1, 'x')])
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cur.execute("select id, data from testfast where id = 1")
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self.assertEqual(cur.fetchone(), (1, 'x'))
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# unicode in data
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psycopg2.extras.execute_batch(cur,
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"insert into testfast (id, data) values (%s, %s)",
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[(2, snowman)])
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cur.execute("select id, data from testfast where id = 2")
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self.assertEqual(cur.fetchone(), (2, snowman))
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# unicode in both
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psycopg2.extras.execute_batch(cur,
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"insert into testfast (id, data) values (%%s, %%s) -- %s" % snowman,
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[(3, snowman)])
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cur.execute("select id, data from testfast where id = 3")
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self.assertEqual(cur.fetchone(), (3, snowman))
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class TestExecuteValues(FastExecuteTestMixin, testutils.ConnectingTestCase):
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def test_empty(self):
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cur = self.conn.cursor()
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psycopg2.extras.execute_values(cur,
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"insert into testfast (id, val) values %s",
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[])
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cur.execute("select * from testfast order by id")
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self.assertEqual(cur.fetchall(), [])
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def test_one(self):
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cur = self.conn.cursor()
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psycopg2.extras.execute_values(cur,
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"insert into testfast (id, val) values %s",
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iter([(1, 10)]))
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cur.execute("select id, val from testfast order by id")
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self.assertEqual(cur.fetchall(), [(1, 10)])
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def test_tuples(self):
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cur = self.conn.cursor()
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psycopg2.extras.execute_values(cur,
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"insert into testfast (id, date, val) values %s",
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((i, date(2017, 1, i + 1), i * 10) for i in range(10)))
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cur.execute("select id, date, val from testfast order by id")
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self.assertEqual(cur.fetchall(),
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[(i, date(2017, 1, i + 1), i * 10) for i in range(10)])
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def test_dicts(self):
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cur = self.conn.cursor()
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psycopg2.extras.execute_values(cur,
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"insert into testfast (id, date, val) values %s",
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(dict(id=i, date=date(2017, 1, i + 1), val=i * 10, foo="bar")
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for i in range(10)),
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template='(%(id)s, %(date)s, %(val)s)')
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cur.execute("select id, date, val from testfast order by id")
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self.assertEqual(cur.fetchall(),
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[(i, date(2017, 1, i + 1), i * 10) for i in range(10)])
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def test_many(self):
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cur = self.conn.cursor()
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psycopg2.extras.execute_values(cur,
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"insert into testfast (id, val) values %s",
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((i, i * 10) for i in range(1000)))
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cur.execute("select id, val from testfast order by id")
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self.assertEqual(cur.fetchall(), [(i, i * 10) for i in range(1000)])
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def test_pages(self):
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cur = self.conn.cursor()
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psycopg2.extras.execute_values(cur,
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"insert into testfast (id, val) values %s",
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((i, i * 10) for i in range(25)),
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page_size=10)
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# last statement was 5 tuples (one parens is for the fields list)
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self.assertEqual(sum(c == '(' for c in cur.query.decode('ascii')), 6)
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cur.execute("select id, val from testfast order by id")
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self.assertEqual(cur.fetchall(), [(i, i * 10) for i in range(25)])
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def test_unicode(self):
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cur = self.conn.cursor()
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ext.register_type(ext.UNICODE, cur)
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snowman = u"\u2603"
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# unicode in statement
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psycopg2.extras.execute_values(cur,
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"insert into testfast (id, data) values %%s -- %s" % snowman,
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[(1, 'x')])
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cur.execute("select id, data from testfast where id = 1")
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self.assertEqual(cur.fetchone(), (1, 'x'))
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# unicode in data
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psycopg2.extras.execute_values(cur,
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"insert into testfast (id, data) values %s",
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[(2, snowman)])
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cur.execute("select id, data from testfast where id = 2")
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self.assertEqual(cur.fetchone(), (2, snowman))
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# unicode in both
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psycopg2.extras.execute_values(cur,
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"insert into testfast (id, data) values %%s -- %s" % snowman,
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[(3, snowman)])
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cur.execute("select id, data from testfast where id = 3")
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self.assertEqual(cur.fetchone(), (3, snowman))
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def test_invalid_sql(self):
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cur = self.conn.cursor()
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self.assertRaises(ValueError, psycopg2.extras.execute_values, cur,
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"insert", [])
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self.assertRaises(ValueError, psycopg2.extras.execute_values, cur,
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"insert %s and %s", [])
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self.assertRaises(ValueError, psycopg2.extras.execute_values, cur,
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"insert %f", [])
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self.assertRaises(ValueError, psycopg2.extras.execute_values, cur,
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"insert %f %s", [])
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def test_percent_escape(self):
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cur = self.conn.cursor()
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psycopg2.extras.execute_values(cur,
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"insert into testfast (id, data) values %s -- a%%b",
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[(1, 'hi')])
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self.assert_(b'a%%b' not in cur.query)
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self.assert_(b'a%b' in cur.query)
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cur.execute("select id, data from testfast")
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self.assertEqual(cur.fetchall(), [(1, 'hi')])
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testutils.decorate_all_tests(TestExecuteValues,
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testutils.skip_before_postgres(8, 2))
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def test_suite():
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return unittest.TestLoader().loadTestsFromName(__name__)
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if __name__ == "__main__":
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unittest.main()
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