Excel+DDT数据驱动实例

一、首先安装dtt模块

数据驱动原理

1.测试数据为多个字典的list类型

2.测试类前加修饰@ddt.ddt

3.case前加修饰@ddt.data()

4.运行后用例会自动加载成N个单独的用例

二、实例

ExcellData.py

# coding:utf-8
import xlrd


class excel:
    def __init__(self):
        self.test_data_path = 'F:\testdata.xlsx'

    def open_excel(self,file):
        u'''读取excel文件'''
        try:
            data = xlrd.open_workbook(file)
            return data
        except Exception, e:
            raise e

    def excel_table(self,file, sheetName):
        u'''装载list'''
        data = self.open_excel(file)
        # 通过工作表名称，获取到一个工作表
        table = data.sheet_by_name(sheetName)
        # 获取行数
        Trows = table.nrows
        # 获取 第一行数据
        Tcolnames = table.row_values(0)
        lister = []
        for rownumber in range(1,Trows):
            row = table.row_values(rownumber)
            if row:
                app = {}
                for i in range(len(Tcolnames)):
                    app[Tcolnames[i]] = row[i]
                lister.append(app)
        return lister

    def get_list(self,sheetname):
        try:
            data_list = self.excel_table(self.test_data_path, sheetname)
            assert len(data_list)>=0,u'excel标签页:'+sheetname+u'为空'
            return data_list
        except Exception as e:
            raise e

test.py

# coding:utf-8
__author__ = 'Helen'
'''
project:ddt数据驱动
'''
import unittest,ddt
from ExcelData import excel

# 测试数据
excel_data = excel()
testdata = excel_data.get_list('userData')

@ddt.ddt
class TestDtt(unittest.TestCase):
    @classmethod
    def setUpClass(cls):
        print u'开始测试---------------'

    @ddt.data(*testdata)
    def test(self, data):
        print 'username:'+data['username']+',password:'+data['password']

    @classmethod
    def tearDownClass(cls):
        print u'结束测试------------------'

if __name__=='__main__':
    unittest.main()