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# coding: utf-8
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from __future__ import unicode_literals
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from collections import OrderedDict
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import os
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import unittest
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from datetime import datetime
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from sqlalchemy import FLOAT, TEXT, BIGINT
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from sqlalchemy.exc import IntegrityError, SQLAlchemyError, ArgumentError
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from dataset import connect, chunked
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from .sample_data import TEST_DATA, TEST_CITY_1
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class DatabaseTestCase(unittest.TestCase):
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def setUp(self):
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os.environ.setdefault('DATABASE_URL', 'sqlite:///:memory:')
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self.db = connect(os.environ['DATABASE_URL'])
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self.tbl = self.db['weather']
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self.tbl.insert_many(TEST_DATA)
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def tearDown(self):
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for table in self.db.tables:
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self.db[table].drop()
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def test_valid_database_url(self):
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assert self.db.url, os.environ['DATABASE_URL']
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def test_database_url_query_string(self):
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db = connect('sqlite:///:memory:/?cached_statements=1')
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assert 'cached_statements' in db.url, db.url
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def test_tables(self):
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assert self.db.tables == ['weather'], self.db.tables
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def test_contains(self):
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assert 'weather' in self.db, self.db.tables
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def test_create_table(self):
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table = self.db['foo']
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assert table.table.exists()
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assert len(table.table.columns) == 1, table.table.columns
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assert 'id' in table.table.c, table.table.c
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def test_create_table_no_ids(self):
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if 'mysql' in self.db.engine.dialect.dbapi.__name__:
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return
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if 'sqlite' in self.db.engine.dialect.dbapi.__name__:
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return
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table = self.db.create_table("foo_no_id", primary_id=False)
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assert table.table.exists()
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assert len(table.table.columns) == 0, table.table.columns
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def test_create_table_custom_id1(self):
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pid = "string_id"
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table = self.db.create_table("foo2", pid, self.db.types.string(255))
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assert table.table.exists()
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assert len(table.table.columns) == 1, table.table.columns
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assert pid in table.table.c, table.table.c
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table.insert({pid: 'foobar'})
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assert table.find_one(string_id='foobar')[pid] == 'foobar'
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def test_create_table_custom_id2(self):
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pid = "string_id"
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table = self.db.create_table("foo3", pid, self.db.types.string(50))
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assert table.table.exists()
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assert len(table.table.columns) == 1, table.table.columns
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assert pid in table.table.c, table.table.c
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table.insert({pid: 'foobar'})
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assert table.find_one(string_id='foobar')[pid] == 'foobar'
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def test_create_table_custom_id3(self):
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pid = "int_id"
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table = self.db.create_table("foo4", primary_id=pid)
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assert table.table.exists()
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assert len(table.table.columns) == 1, table.table.columns
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assert pid in table.table.c, table.table.c
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table.insert({pid: 123})
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table.insert({pid: 124})
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assert table.find_one(int_id=123)[pid] == 123
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assert table.find_one(int_id=124)[pid] == 124
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self.assertRaises(IntegrityError, lambda: table.insert({pid: 123}))
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def test_create_table_shorthand1(self):
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pid = "int_id"
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table = self.db.get_table('foo5', pid)
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assert table.table.exists
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assert len(table.table.columns) == 1, table.table.columns
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assert pid in table.table.c, table.table.c
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table.insert({'int_id': 123})
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table.insert({'int_id': 124})
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assert table.find_one(int_id=123)['int_id'] == 123
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assert table.find_one(int_id=124)['int_id'] == 124
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self.assertRaises(IntegrityError, lambda: table.insert({'int_id': 123}))
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def test_create_table_shorthand2(self):
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pid = "string_id"
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table = self.db.get_table('foo6', primary_id=pid,
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primary_type=self.db.types.string(255))
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assert table.table.exists
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assert len(table.table.columns) == 1, table.table.columns
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assert pid in table.table.c, table.table.c
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table.insert({
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'string_id': 'foobar'})
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assert table.find_one(string_id='foobar')['string_id'] == 'foobar'
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def test_with(self):
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init_length = len(self.db['weather'])
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with self.assertRaises(ValueError):
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with self.db as tx:
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tx['weather'].insert({'date': datetime(2011, 1, 1),
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'temperature': 1,
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'place': 'tmp_place'})
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raise ValueError()
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assert len(self.db['weather']) == init_length
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def test_invalid_values(self):
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if 'mysql' in self.db.engine.dialect.dbapi.__name__:
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# WARNING: mysql seems to be doing some weird type casting upon insert.
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# The mysql-python driver is not affected but it isn't compatible with Python 3
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# Conclusion: use postgresql.
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return
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with self.assertRaises(SQLAlchemyError):
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tbl = self.db['weather']
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tbl.insert({'date': True, 'temperature': 'wrong_value', 'place': 'tmp_place'})
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def test_load_table(self):
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tbl = self.db.load_table('weather')
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assert tbl.table.name == self.tbl.table.name
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def test_query(self):
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r = self.db.query('SELECT COUNT(*) AS num FROM weather').next()
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assert r['num'] == len(TEST_DATA), r
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def test_table_cache_updates(self):
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tbl1 = self.db.get_table('people')
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data = OrderedDict([('first_name', 'John'), ('last_name', 'Smith')])
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tbl1.insert(data)
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data['id'] = 1
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tbl2 = self.db.get_table('people')
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assert dict(tbl2.all().next()) == dict(data), (tbl2.all().next(), data)
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class TableTestCase(unittest.TestCase):
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def setUp(self):
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self.db = connect('sqlite:///:memory:')
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self.tbl = self.db['weather']
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for row in TEST_DATA:
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self.tbl.insert(row)
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def test_insert(self):
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assert len(self.tbl) == len(TEST_DATA), len(self.tbl)
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last_id = self.tbl.insert({
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'date': datetime(2011, 1, 2),
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'temperature': -10,
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'place': 'Berlin'}
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)
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assert len(self.tbl) == len(TEST_DATA) + 1, len(self.tbl)
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assert self.tbl.find_one(id=last_id)['place'] == 'Berlin'
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def test_insert_ignore(self):
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self.tbl.insert_ignore({
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'date': datetime(2011, 1, 2),
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'temperature': -10,
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'place': 'Berlin'},
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['place']
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)
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assert len(self.tbl) == len(TEST_DATA) + 1, len(self.tbl)
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self.tbl.insert_ignore({
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'date': datetime(2011, 1, 2),
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'temperature': -10,
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'place': 'Berlin'},
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['place']
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)
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assert len(self.tbl) == len(TEST_DATA) + 1, len(self.tbl)
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def test_insert_ignore_all_key(self):
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for i in range(0, 4):
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self.tbl.insert_ignore({
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'date': datetime(2011, 1, 2),
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'temperature': -10,
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'place': 'Berlin'},
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['date', 'temperature', 'place']
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)
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assert len(self.tbl) == len(TEST_DATA) + 1, len(self.tbl)
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def test_upsert(self):
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self.tbl.upsert({
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'date': datetime(2011, 1, 2),
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'temperature': -10,
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'place': 'Berlin'},
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['place']
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)
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assert len(self.tbl) == len(TEST_DATA) + 1, len(self.tbl)
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self.tbl.upsert({
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'date': datetime(2011, 1, 2),
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'temperature': -10,
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'place': 'Berlin'},
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['place']
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)
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assert len(self.tbl) == len(TEST_DATA) + 1, len(self.tbl)
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def test_upsert_single_column(self):
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table = self.db['banana_single_col']
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table.upsert({
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'color': 'Yellow'},
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['color']
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)
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assert len(table) == 1, len(table)
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table.upsert({
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'color': 'Yellow'},
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['color']
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)
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assert len(table) == 1, len(table)
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def test_upsert_all_key(self):
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assert len(self.tbl) == len(TEST_DATA), len(self.tbl)
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for i in range(0, 2):
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self.tbl.upsert({
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'date': datetime(2011, 1, 2),
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'temperature': -10,
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'place': 'Berlin'},
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['date', 'temperature', 'place']
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)
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assert len(self.tbl) == len(TEST_DATA) + 1, len(self.tbl)
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def test_upsert_id(self):
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table = self.db['banana_with_id']
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data = dict(id=10, title='I am a banana!')
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table.upsert(data, ['id'])
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assert len(table) == 1, len(table)
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def test_update_while_iter(self):
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for row in self.tbl:
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row['foo'] = 'bar'
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self.tbl.update(row, ['place', 'date'])
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assert len(self.tbl) == len(TEST_DATA), len(self.tbl)
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def test_weird_column_names(self):
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with self.assertRaises(ValueError):
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self.tbl.insert({
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'date': datetime(2011, 1, 2),
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'temperature': -10,
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'foo.bar': 'Berlin',
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'qux.bar': 'Huhu'
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})
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def test_cased_column_names(self):
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tbl = self.db['cased_column_names']
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tbl.insert({
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'place': 'Berlin',
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})
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tbl.insert({
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'Place': 'Berlin',
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})
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tbl.insert({
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'PLACE ': 'Berlin',
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})
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assert len(tbl.columns) == 2, tbl.columns
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assert len(list(tbl.find(Place='Berlin'))) == 3
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assert len(list(tbl.find(place='Berlin'))) == 3
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assert len(list(tbl.find(PLACE='Berlin'))) == 3
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def test_invalid_column_names(self):
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tbl = self.db['weather']
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with self.assertRaises(ValueError):
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tbl.insert({None: 'banana'})
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with self.assertRaises(ValueError):
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tbl.insert({'': 'banana'})
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with self.assertRaises(ValueError):
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tbl.insert({'-': 'banana'})
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def test_delete(self):
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self.tbl.insert({
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'date': datetime(2011, 1, 2),
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'temperature': -10,
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'place': 'Berlin'}
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)
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original_count = len(self.tbl)
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assert len(self.tbl) == len(TEST_DATA) + 1, len(self.tbl)
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# Test bad use of API
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with self.assertRaises(ArgumentError):
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self.tbl.delete({'place': 'Berlin'})
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assert len(self.tbl) == original_count, len(self.tbl)
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assert self.tbl.delete(place='Berlin') is True, 'should return 1'
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assert len(self.tbl) == len(TEST_DATA), len(self.tbl)
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assert self.tbl.delete() is True, 'should return non zero'
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assert len(self.tbl) == 0, len(self.tbl)
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def test_repr(self):
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assert repr(self.tbl) == '<Table(weather)>', \
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'the representation should be <Table(weather)>'
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def test_delete_nonexist_entry(self):
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assert self.tbl.delete(place='Berlin') is False, \
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'entry not exist, should fail to delete'
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def test_find_one(self):
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self.tbl.insert({
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'date': datetime(2011, 1, 2),
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'temperature': -10,
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'place': 'Berlin'
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})
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d = self.tbl.find_one(place='Berlin')
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assert d['temperature'] == -10, d
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d = self.tbl.find_one(place='Atlantis')
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assert d is None, d
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def test_count(self):
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assert len(self.tbl) == 6, len(self.tbl)
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length = self.tbl.count(place=TEST_CITY_1)
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assert length == 3, length
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def test_find(self):
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ds = list(self.tbl.find(place=TEST_CITY_1))
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assert len(ds) == 3, ds
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ds = list(self.tbl.find(place=TEST_CITY_1, _limit=2))
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assert len(ds) == 2, ds
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ds = list(self.tbl.find(place=TEST_CITY_1, _limit=2, _step=1))
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assert len(ds) == 2, ds
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ds = list(self.tbl.find(place=TEST_CITY_1, _limit=1, _step=2))
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assert len(ds) == 1, ds
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ds = list(self.tbl.find(_step=2))
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assert len(ds) == len(TEST_DATA), ds
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ds = list(self.tbl.find(order_by=['temperature']))
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assert ds[0]['temperature'] == -1, ds
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ds = list(self.tbl.find(order_by=['-temperature']))
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assert ds[0]['temperature'] == 8, ds
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ds = list(self.tbl.find(self.tbl.table.columns.temperature > 4))
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assert len(ds) == 3, ds
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def test_find_dsl(self):
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ds = list(self.tbl.find(place={'like': '%lw%'}))
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assert len(ds) == 3, ds
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ds = list(self.tbl.find(temperature={'>': 5}))
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assert len(ds) == 2, ds
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ds = list(self.tbl.find(temperature={'>=': 5}))
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assert len(ds) == 3, ds
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ds = list(self.tbl.find(temperature={'<': 0}))
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assert len(ds) == 1, ds
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ds = list(self.tbl.find(temperature={'<=': 0}))
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assert len(ds) == 2, ds
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ds = list(self.tbl.find(temperature={'!=': -1}))
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assert len(ds) == 5, ds
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ds = list(self.tbl.find(temperature={'between': [5, 8]}))
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assert len(ds) == 3, ds
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ds = list(self.tbl.find(place={'=': 'G€lway'}))
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assert len(ds) == 3, ds
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ds = list(self.tbl.find(place={'ilike': '%LwAy'}))
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assert len(ds) == 3, ds
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def test_offset(self):
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ds = list(self.tbl.find(place=TEST_CITY_1, _offset=1))
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assert len(ds) == 2, ds
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ds = list(self.tbl.find(place=TEST_CITY_1, _limit=2, _offset=2))
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assert len(ds) == 1, ds
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def test_streamed(self):
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ds = list(self.tbl.find(place=TEST_CITY_1, _streamed=True, _step=1))
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assert len(ds) == 3, len(ds)
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for row in self.tbl.find(place=TEST_CITY_1, _streamed=True, _step=1):
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row['temperature'] = -1
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self.tbl.update(row, ['id'])
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def test_distinct(self):
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x = list(self.tbl.distinct('place'))
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assert len(x) == 2, x
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x = list(self.tbl.distinct('place', 'date'))
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assert len(x) == 6, x
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x = list(self.tbl.distinct(
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'place', 'date',
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self.tbl.table.columns.date >= datetime(2011, 1, 2, 0, 0)))
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assert len(x) == 4, x
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x = list(self.tbl.distinct('temperature', place='B€rkeley'))
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assert len(x) == 3, x
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x = list(self.tbl.distinct('temperature',
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place=['B€rkeley', 'G€lway']))
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assert len(x) == 6, x
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def test_insert_many(self):
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data = TEST_DATA * 100
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self.tbl.insert_many(data, chunk_size=13)
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assert len(self.tbl) == len(data) + 6
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def test_chunked_insert(self):
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data = TEST_DATA * 100
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with chunked.ChunkedInsert(self.tbl) as chunk_tbl:
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for item in data:
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chunk_tbl.insert(item)
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assert len(self.tbl) == len(data) + 6
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def test_chunked_insert_callback(self):
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data = TEST_DATA * 100
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N = 0
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def callback(queue):
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nonlocal N
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N += len(queue)
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with chunked.ChunkedInsert(self.tbl, callback=callback) as chunk_tbl:
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for item in data:
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chunk_tbl.insert(item)
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assert len(data) == N
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assert len(self.tbl) == len(data) + 6
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def test_update_many(self):
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tbl = self.db['update_many_test']
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tbl.insert_many([
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dict(temp=10), dict(temp=20), dict(temp=30)
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])
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tbl.update_many(
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[dict(id=1, temp=50), dict(id=3, temp=50)], 'id'
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)
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# Ensure data has been updated.
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assert tbl.find_one(id=1)['temp'] == tbl.find_one(id=3)['temp']
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def test_upsert_many(self):
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# Also tests updating on records with different attributes
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tbl = self.db['upsert_many_test']
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W = 100
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tbl.upsert_many([dict(age=10), dict(weight=W)], 'id')
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assert tbl.find_one(id=1)['age'] == 10
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tbl.upsert_many([dict(id=1, age=70), dict(id=2, weight=W / 2)], 'id')
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assert tbl.find_one(id=2)['weight'] == W / 2
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def test_drop_operations(self):
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assert self.tbl._table is not None, \
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'table shouldn\'t be dropped yet'
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self.tbl.drop()
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assert self.tbl._table is None, \
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'table should be dropped now'
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assert list(self.tbl.all()) == [], self.tbl.all()
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assert self.tbl.count() == 0, self.tbl.count()
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def test_table_drop(self):
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assert 'weather' in self.db
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self.db['weather'].drop()
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assert 'weather' not in self.db
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def test_table_drop_then_create(self):
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assert 'weather' in self.db
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self.db['weather'].drop()
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assert 'weather' not in self.db
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self.db['weather'].insert({'foo': 'bar'})
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def test_columns(self):
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cols = self.tbl.columns
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assert len(list(cols)) == 4, 'column count mismatch'
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assert 'date' in cols and 'temperature' in cols and 'place' in cols
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def test_drop_column(self):
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try:
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self.tbl.drop_column('date')
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assert 'date' not in self.tbl.columns
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except RuntimeError:
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pass
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def test_iter(self):
|
|
c = 0
|
|
for row in self.tbl:
|
|
c += 1
|
|
assert c == len(self.tbl)
|
|
|
|
def test_update(self):
|
|
date = datetime(2011, 1, 2)
|
|
res = self.tbl.update({
|
|
'date': date,
|
|
'temperature': -10,
|
|
'place': TEST_CITY_1},
|
|
['place', 'date']
|
|
)
|
|
assert res, 'update should return True'
|
|
m = self.tbl.find_one(place=TEST_CITY_1, date=date)
|
|
assert m['temperature'] == -10, \
|
|
'new temp. should be -10 but is %d' % m['temperature']
|
|
|
|
def test_create_column(self):
|
|
tbl = self.tbl
|
|
tbl.create_column('foo', FLOAT)
|
|
assert 'foo' in tbl.table.c, tbl.table.c
|
|
assert isinstance(tbl.table.c['foo'].type, FLOAT), \
|
|
tbl.table.c['foo'].type
|
|
assert 'foo' in tbl.columns, tbl.columns
|
|
|
|
def test_ensure_column(self):
|
|
tbl = self.tbl
|
|
tbl.create_column_by_example('foo', 0.1)
|
|
assert 'foo' in tbl.table.c, tbl.table.c
|
|
assert isinstance(tbl.table.c['foo'].type, FLOAT), \
|
|
tbl.table.c['bar'].type
|
|
tbl.create_column_by_example('bar', 1)
|
|
assert 'bar' in tbl.table.c, tbl.table.c
|
|
assert isinstance(tbl.table.c['bar'].type, BIGINT), \
|
|
tbl.table.c['bar'].type
|
|
tbl.create_column_by_example('pippo', 'test')
|
|
assert 'pippo' in tbl.table.c, tbl.table.c
|
|
assert isinstance(tbl.table.c['pippo'].type, TEXT), \
|
|
tbl.table.c['pippo'].type
|
|
tbl.create_column_by_example('bigbar', 11111111111)
|
|
assert 'bigbar' in tbl.table.c, tbl.table.c
|
|
assert isinstance(tbl.table.c['bigbar'].type, BIGINT), \
|
|
tbl.table.c['bigbar'].type
|
|
tbl.create_column_by_example('littlebar', -11111111111)
|
|
assert 'littlebar' in tbl.table.c, tbl.table.c
|
|
assert isinstance(tbl.table.c['littlebar'].type, BIGINT), \
|
|
tbl.table.c['littlebar'].type
|
|
|
|
def test_key_order(self):
|
|
res = self.db.query('SELECT temperature, place FROM weather LIMIT 1')
|
|
keys = list(res.next().keys())
|
|
assert keys[0] == 'temperature'
|
|
assert keys[1] == 'place'
|
|
|
|
def test_empty_query(self):
|
|
empty = list(self.tbl.find(place='not in data'))
|
|
assert len(empty) == 0, empty
|
|
|
|
|
|
class Constructor(dict):
|
|
""" Very simple low-functionality extension to ``dict`` to
|
|
provide attribute access to dictionary contents"""
|
|
def __getattr__(self, name):
|
|
return self[name]
|
|
|
|
|
|
class RowTypeTestCase(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
self.db = connect('sqlite:///:memory:', row_type=Constructor)
|
|
self.tbl = self.db['weather']
|
|
for row in TEST_DATA:
|
|
self.tbl.insert(row)
|
|
|
|
def tearDown(self):
|
|
for table in self.db.tables:
|
|
self.db[table].drop()
|
|
|
|
def test_find_one(self):
|
|
self.tbl.insert({
|
|
'date': datetime(2011, 1, 2),
|
|
'temperature': -10,
|
|
'place': 'Berlin'}
|
|
)
|
|
d = self.tbl.find_one(place='Berlin')
|
|
assert d['temperature'] == -10, d
|
|
assert d.temperature == -10, d
|
|
d = self.tbl.find_one(place='Atlantis')
|
|
assert d is None, d
|
|
|
|
def test_find(self):
|
|
ds = list(self.tbl.find(place=TEST_CITY_1))
|
|
assert len(ds) == 3, ds
|
|
for item in ds:
|
|
assert isinstance(item, Constructor), item
|
|
ds = list(self.tbl.find(place=TEST_CITY_1, _limit=2))
|
|
assert len(ds) == 2, ds
|
|
for item in ds:
|
|
assert isinstance(item, Constructor), item
|
|
|
|
def test_distinct(self):
|
|
x = list(self.tbl.distinct('place'))
|
|
assert len(x) == 2, x
|
|
for item in x:
|
|
assert isinstance(item, Constructor), item
|
|
x = list(self.tbl.distinct('place', 'date'))
|
|
assert len(x) == 6, x
|
|
for item in x:
|
|
assert isinstance(item, Constructor), item
|
|
|
|
def test_iter(self):
|
|
c = 0
|
|
for row in self.tbl:
|
|
c += 1
|
|
assert isinstance(row, Constructor), row
|
|
assert c == len(self.tbl)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|