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我正在使用postgresql,我用MagicMock來測試,但我不確定我是否已經瞭解了模擬的概念。這是我的示例代碼(我有一個數據庫名=測試,表= py_test和用戶=西蒙娜):概念:嘲諷數據庫python
import psycopg2
import sys
from mock import Mock, patch
import unittest
from mock import MagicMock
from collections import Counter
import doctest
class db(object):
def __init__(self,database, user):
self.con = None
self.database = database
self.user = user
def test_connection(self):
"""Connection DB"""
try:
self.con = psycopg2.connect(database=self.database, user=self.user)
return True
except psycopg2.DatabaseError, e:
print 'Error %s' % e
return False
def test_empty_table(self,table):
"""empty table?"""
try:
cur = self.con.cursor()
cur.execute('SELECT * from ' + table)
ver = cur.fetchone()
return ver
except psycopg2.DatabaseError, e:
print 'Error %s' % e
def test_data_type(self, table, column):
"""data type"""
try:
cur = self.con.cursor()
cur.execute("SELECT data_type from information_schema.columns where table_name = '"+ table + "' and column_name= '"+column+"'")
ver = cur.fetchone()
return ver
except psycopg2.DatabaseError, e:
print 'Error %s' % e
def __del__(self):
if self.con:
self.con.close()
class test_db(unittest.TestCase):
def testing(self):
tdb = db('test','simone')
self.assertTrue(tdb.test_connection(), 1)
self.assertTrue(tdb.test_empty_table('py_test'), 1)
self.assertTrue(tdb.test_data_type('py_test','id'), int)
class test_mock(object):
def __init__(self, db):
self.db = db
def execute(self, nomedb, user, table, field):
self.db(nomedb, user)
self.db.test_connection()
self.db.test_empty_table(table)
self.db.test_data_type(table, field)
if __name__ == "__main__":
c = MagicMock()
d = test_mock(c)
d.execute('test','simone','py_test','id')
method_count = Counter([str(method) for method in c.method_calls])
print c.method_calls
print method_count
print c.mock_calls
那麼,什麼是問題?你的代碼不工作或什麼? – GSP