Summary
Cannot test everything
Think test program as a whole
The science of testing
Making good test investments
work like an engineer
- decomposing
- automating
- testing
- systematically
think like an economist
- understand downside
- time and energy consuming
How many test
谷歌测试团队建议:70% 单元测试 20% 集成测试 10% 系统测试
根据迭代回顾和生产环境反馈调整