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1000 words selected - interface test basis

2022-07-06 23:52:00 【Test Xiaona】

One 、 Interface test essence

What is an interface ？

Hardware ：USB、 Projector 【 Something used for data transmission 】

Software ： Interface collectively API（application program interface）【 Authentication code ：token、key、appkey】

Interface has internal interface and external interface

Internal interface ： The developer wrote it himself , For the system itself

External interface ： The system calls the external interface （ Like each big APP Pay with wechat , Alipay payment and so on ）

summary ： Why interfaces are needed

Because the interface allows internal data to be modified externally

such as ： The bank card deposit can be called by the payment interface , After online payment , The balance has changed

Why do interface tests

Most systems are separated from the front end and the back end , If the development progress is different , The interface developed first can be tested . It is usually used mock service , Imitate the response of the front end or the back end
security , The verification of the front end may be bypassed . Need to pay attention to safety , For example, financial transactions , ID card information, etc
Test shift left , Test early intervention

The process of interface interaction

Take the operation of wechat on bank cards as an example

Two 、 Interface returns data

1. Generally, there are three groups of data

error_code： Error code ,0 On behalf of success , Development customization

msg： Chinese description of the error

data： The real data returned

Json Detailed explanation

from 2 Data types in ： Key value pair , Array

Json Online editor https://www.bejson.com

2.html Format

<html>

<title></title>

<body>

<error_code>0</error_code>

...

</body>

3.xml Format

<?xml?version="1.0"encoding="utf-8">

<error_code>0</error_code>

...

</xml>

3、 ... and 、 Interface test protocol

1.webservice agreement ( Not commonly used )：

be based on http Of soap Protocol transfer data

webservice=soap=http+xml,webservice The agreement is http+xml Composed of , among xml Will be used in wsdl,wsdl Is a description language xml A format in .

Address of the interface ：http//...?wsdl

Restful It's a kind of The interface specification , Not the interface protocol ,restful Interface specifications will also be used http agreement .

get- get data
post- Submit data
put- Modifying data
delete- Delete data

2.dubbo agreement

Address of the interface ：dubbo://......

Apply to Transmission of a small amount of data , Can withstand large concurrency

3. Address of the interface ：http://

http Hypertext transfer protocol , It is mainly used for data transmission between browser and server

HTTPS=http+ssl（ Secure transport protocol ）

Finally, thank everyone who reads my article carefully , Watching the rise and attention of fans all the way , Reciprocity is always necessary , Although it's not very valuable , If you can use it, you can take it

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