端到端测试和单元测试之间的区别

1.端到端测试：
端到端测试是一种软件测试类型，用于从头到尾测试整个软件以及它与外部接口的集成。端到端测试的主要目的是确定系统依赖性，并确保数据完整性以及与其他系统，接口和数据库的通信以完成完整的生产。

2.单元测试：
单元测试是软件测试级别的一种类型，其中软件的各个组件分别进行测试。它通常由开发人员执行。它不能用于那些在不同模块之间有很多相互依存关系的系统。它不允许并行测试。

端到端测试和单元测试之间的区别：

End-to-end Testing	Unit Testing
In end-to-end testing, the behavioral flow of the software is tested.	Unit testing generally focuses on functional verification.
It tests the software system and the connected systems both combine.	In unit testing, software’s module are tested separately.
It is generally performed manually.	It is performed both manually and automated.
End-to-end testing is not cost efficient.	Unit testing is cost efficient.
End-to-end testing is performed for all testing processes at end.	Unit testing is performed for testing processes first.
Defects are not identified easily in end-to-end testing.	Defects are identified easily in unit testing.
Flow from end-to-end is tested.	Unit testing comprise of independent modules.
Knowledge about interconnected systems is required.	Knowledge of interconnected systems is not required.