Table of contents
foreword
When we pressure test the login interface, if we only use one account to set up concurrent pressure testing, such a result is obviously unreasonable, and one concurrent user cannot simulate the real situation.
If you want to stress test the login interface, you must prepare hundreds or even thousands of accounts to log in, so that the test results can be referenced
1. Scenarios
I now have a login interface, the basic information of the interface login interface document
Access URL: http://127.0.0.1:8000/api/v1/login/
Request Type: POST
Request Header: Content-Type: application/json
Request Parameters: {"username":"test", "password": "123456"}
I want to pressure test this login interface now, and I need to set the concurrency number of 30, 50, 80, 100, so I need to prepare at least 100 accounts and passwords
2. Login interface
First ensure that an account and password can be successfully requested 
to add an HTTP header manager, and add a post request type Content-Type: application/json 
to view the results
3. Test data preparation
The single user above can request successfully, and then prepare the test data, and register a batch of account numbers and passwords by yourself, here I take 10 account numbers and passwords as an example
The account number and password are in the following format, separated by commas, and saved as login_user_psw.txt
test1,123456
test2,123456
test3,123456
test4,123456
test5,123456
test6,123456
test7,123456
test8,123456
test9,123456
test10,123456
4. CSV data file settings
Add configuration components, CSV data file settings to 
import txt data files, use 2 variables user and psw The middle parameters are separated by commas by default, and 
then change the account and password references to variables
CSV data file setting parameter description:
file name: import the absolute path of your txt file
File encoding: generally choose UTF-8
Variable name: The variable you set yourself. If there is only one variable, write only one. When there are multiple variables, separate them with English commas
Ignore the first line: If your first line is the test account, the default is False, if the first line is the title column, set True to ignore
Delimiter: that is, the match of the parameters in your txt file, generally use English commas
Whether to run with quotes: generally do not need to change, the default is Fasle
Loop when encountering the end of the file: it will loop to get values from the txt file. If you want to continue after all the fetches, it will be True. If you want the file to end when the data is used up, for example, the registration cannot be reused, then set False
Thread sharing mode: all threads are fine by default
Five, view the results
For example, if I set the number of threads to 3, one thread number represents one user
Looking at the structure tree, there will be 3 results returned by the request, and they have logged in with different accounts.
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5. Resume of first-tier manufacturers
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7. Commonly used automated testing tools
Eight, JMeter performance test
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Information acquisition method:
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