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The company has only one test, but the leader asked me to operate 1000 mobile numbers at the same time

2022-06-23 14:10:00 【Software testing】

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A lot now APP Or websites need to log in with a mobile number , When logging in with your mobile number , It is necessary to “ cell-phone number + SMS verification code ” Before you can log in successfully .

During the actual test , Testers usually have only one mobile phone number , Then you need to test multiple mobile phone numbers to get the information you need to log in through the SMS interface service “ SMS verification code ”, So how to solve the problem of multiple mobile phone numbers ？

Collect the personal mobile phone numbers of other colleagues in the company
Use Jmeter Provide random function , Generate the middle four digits of the mobile phone number

This paper focuses on the interface function of obtaining SMS verification code , Therefore, there is no need to check the format of each number segment of the mobile phone number , So choose the second one above “ use Jmeter The random number + Fixed number ” that will do . If you need a more realistic simulation （ For example, check whether the mobile phone number is legal, etc ）, Other methods can be used to generate 11 Cell phone number , For example, generate legal mobile phone numbers through regular expressions .

01 Interface Analysis

Before starting an interface test or interface stress test task , You need to obtain the following relevant information from the interface documents provided by the development ：

domain name （IP）

Address （path）

Request mode （post/get）

Enter the reference ： Mobile phone number and other information

…

This article focuses on “ How to use Jmeter The random number generated by the random function of ” Combine into different mobile phone numbers , In order to pass “ Get SMS verification code ” The interface obtains the verification code required for login .

02 utilize Jmeter Generate four bit random number

utilize Jmeter The random function of _Random, Four digit random numbers can be generated ：

choice Jmeter Self contained random function
Define the minimum value of a four digit random number
Define the maximum value of a four digit random number
Finally, the random function expression is generated ：${__Random(0000,9999,)}

03 Splice phone numbers

Use random functions and fixed numbers to form a mobile phone number , The domestic mobile phone number is 11 position ：

Top three ：152（ This article is an example of the fixed number segment of mobile phone number ）

The middle four ： Use random function expressions “${__Random(0000,9999,)}”

The last four ：5208（ This article is an example of a mobile phone number with a fixed tail number ）

Joining together the results ：152XXXX5208, In the middle of it “XXXX” Represents a four digit random number .

Sum up , The mobile phone number of the SMS interface "mobile":

"152${__Random(0000,9999,)}5208"

04 Simulate SMS interface request

Menu path ：

stay Thread Group Right click —sample-HTTP Request

JMeter add to HTTP Request Configure the domain name requested by the interface 、 route 、 Request mode 、 Enter the level , Here's the picture ：

05 Add listening tree

Menu path ：

stay Thread Group Right click - lisener - View Results Tree

The listening tree report configuration remains the default configuration （ All request logs are displayed by default ） that will do , If you need to simulate 1000 Or more , You can choose to display only the error log ：

06 Set the number of script runs

If you need to simulate 1000 Concurrent users , It can be set as follows ：

Number of threads（users）：1000

Ramp-up period（in seconds）：0

Loop Count：1

The above configuration indicates 1000 Multiple users initiate to obtain the verification code at the same time , And each user executes .

If interval is required 1s In order to 1000 Users send SMS verification code , You need to set... On the thread group Loop Count=1000

07 Running results

Because... Is set on the thread group Loop Count=1000, So the script runs 1000 Time , Each time, the random function will generate a random four digit number and a fixed number, which will be spliced into different mobile phone numbers .

The running result of the script is shown in the figure below ：

Click each request to see that the participating mobile phone numbers are different

Mobile number login process ：

Use your mobile number to get the verification code

Use cell phone number + Login with verification code

This paper implements the first stage of the login process ~, If you need to log in at the same time , The login interface request can be added after obtaining the verification code .

Tips：

During the test , The test environment generally needs to add SMS white list before users can really receive SMS verification code , So don't worry that the verification code will actually be sent to the mobile phone of the head of the mobile phone number , And there will be no SMS deduction .

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