Implementation and Design Jmeter interface test database assertion

Interface test most of them use as the basis of the value of the interface in response to verification of the interface, but the result of the determination in this interface to interact with the database has not judge the correctness of the interface, as an interface jmeter herein will test tools to the interface database assertion

I. Overview of the general idea

1. jmeter interface request initiated

2. json extractor acquires content interface in response to key results

3. jmeter initiate a database operation, the database values obtained

4. Comparative BeanShell use assertions, and implement the interface in response to the content of the database content

Two. Jmeter initiate interface requests

To search interface, for example, business requirements are: search by keyword merchandise. Interface information is as follows:

Interface information:

Input parameters:

Return result:

Add jmeter http request in accordance with the interface information above, below

III. Adding an interface to request extractor json

Add json extractor to obtain all of the interface in response name, and the name value to be found in the database one comparisons

Add json Extractor 3.1

Select search requests - Add - postprocessor extractor --json

3.2 extractor provided json

The parameters explained:

1. Names of created variables: variables representing json extractor acquired from the response to the stored content, just as long as no conflict can be defined, since a meaningful name suggestions, do not write the name of abc meaningless

2. JSON Path Expressions: json extraction expression that requires matching content from the response in accordance with this rule, all the figures showing the expression match the name field value corresponding to the response

3. Match No. (0 for Random): matching result storage policy to a variable, the default is nothing to write 0

10 represents a random variable stored, for example, we matched the values of a plurality of name fields, which will then randomly assigned to a variable value specified Names of created variables

2 -1表示使用数字后缀标识每一个匹配的结果，比如我们匹配了多个name字段的值，那么最终每一个结果都会对应一个变量，变量名称则是name_1、name_2、name_3、name_4 ....

3 X表示把第几个匹配到的值赋值给Names of created variables指定的变量，比如写个2，那么就会把匹配到的第2的name字段的值赋值给name

4. Compute concatenation var：表示如果匹配到多个值，可以将多个值存储在一个变量中，变量名为Names of created variables指定的变量名称加_ALL，比如当前图中就是name_ALL，存储的多个值以,分割

5. Default Values：表示如果json表达式没有匹配到任何值，那么变量的默认值是啥

四. 配置数据库发起数据库请求

以mysql数据库为例

4.1 配置数据库连接元件

配置数据库所需要的jar包，下载mysql-connector-java.5.1.46.jar，可以直接在maven上进行下载，下载地址https://mvnrepository.com/artifact/mysql/mysql-connector-java/5.1.46