接口测试：
接口测试是一种软件测试类型，用于检查两个不同软件系统之间的正确通信。接口是集成两个组件的连接。接口可以是 API、Web 服务等任何东西。这些连接接口的测试被定义为接口测试。
接口实际上是一个软件，它由一组命令、消息和其他属性组成，使设备和用户之间能够进行通信。
集成测试：
集成测试是测试两个软件单元或模块之间的接口的过程。集成测试的重点是确定接口的正确性。集成测试暴露了集成单元之间交互中的错误。在对所有模块进行单元测试后，进行集成测试。
集成测试是一种软件测试类型，其中软件模块被逻辑集成并作为一个组进行测试。一个典型的软件项目由多个由不同程序员编写的软件模块组成。集成测试侧重于验证这些模块之间的数据通信。
以下是接口测试和集成测试之间的区别：
| Interface Testing | Integration Testing |
|---|---|
| Interface testing is carried out to test an interface to verify the expected result. | Integration testing is performed to verify the end to end functionality of the integrated components. |
| Interface testing is tricky and boring. | Integration testing is easy but lengthy. |
| Interface testing is mostly automated. | Integration testing is manual and automation both. |
| Interface testing is performed only on the code. | Integration testing is performed on both code and GUI of the application. |
| Interface testing is done on interfaces like APIs, web services, connection strings etc. | Integration testing is done on integrated components. |