Benefits of Scenario Audits

Oct 13, 2025 by wbrum.org 20 views

Introduction

NBomber is a popular open-source tool for load testing and performance benchmarking of APIs. It provides a simple and intuitive way to write scenarios that simulate real-world user interactions with your application. However, as with any complex system, it's essential to have a way to audit and analyze the results of each test run. In this article, we'll explore the concept of scenario audits in NBomber and how they can be used to gain deeper insights into the performance of your application.

What are Scenario Audits?

A scenario audit is a detailed report of the requests and responses made during a specific scenario or step in a test run. It provides a comprehensive view of the interactions between the client and the server, including request and response times, status codes, and any errors that may have occurred. This information can be invaluable in identifying performance bottlenecks, debugging issues, and optimizing the overall user experience.

Benefits of Scenario Audits

So, why are scenario audits so important? Here are just a few benefits of incorporating them into your testing workflow:

Improved Debugging: With a detailed audit of each request and response, you can quickly identify and diagnose issues that may be causing problems in your application.
Enhanced Performance Optimization: By analyzing the performance of individual requests and responses, you can identify areas where your application can be optimized to improve overall performance.
Increased Test Coverage: Scenario audits provide a more comprehensive view of your application's behavior, allowing you to test and validate more scenarios and edge cases.

Implementing Scenario Audits in NBomber

So, how can you implement scenario audits in NBomber? Here are the basic steps:

Step 1: Create a Scenario

First, you need to create a scenario in NBomber. This involves defining the steps that will be executed during the test run. For example:

[ScenarioDefinition]
public class MyScenario
{
    [StepDefinition("Get user by ID")]
    public void GetUserId(int id)
    {
        // Code to get user by ID
    }

    [StepDefinition("Get user details")]
    public void GetUserDetails(int id)
    {
        // Code to get user details
    }
}

Step 2: Add Audit Logging

Next, you need to add audit logging to your scenario. This involves using the IAuditLogger interface to log requests and responses. For example:

[ScenarioDefinition]
public class MyScenario
{
    private readonly IAuditLogger _auditLogger;

    public MyScenario(IAuditLogger auditLogger)
    {
        _auditLogger = auditLogger;
    }

    [StepDefinition("Get user by ID")]
    public void GetUserId(int id)
    {
        // Code to get user by ID
        _auditLogger.LogRequest("GET", "/users/" + id);
    }

    [StepDefinition("Get user details")]
    public void GetUserDetails(int id)
    {
        // Code to get user details
        _auditLogger.LogResponse("GET", "/users/" + id, 200);
    }
}

Step 3: Configure Audit Logging

Finally, you need to configure audit logging in your NBomber configuration file. This involves setting up the IAuditLogger interface to write logs to a file or database. For example:

{
    "auditLogger": {
        "type": "file",
        "filePath": "audit.log"
    }
}

Example Use Case

Let's say you have a scenario that simulates a user logging in to your application. You want to audit the requests and responses made during this scenario to identify any performance bottlenecks. Here's an example of how you might implement scenario audits in this scenario:

[ScenarioDefinition]
public class LoginScenario
{
    private readonly IAuditLogger _auditLogger;

    public LoginScenario(IAuditLogger auditLogger)
    {
        _auditLogger = auditLogger;
    }

    [StepDefinition("Send login request")]
    public void SendLoginRequest(string username, string password)
    {
        // Code to send login request
        _auditLogger.LogRequest("POST", "/login", new { username, password });
    }

    [StepDefinition("Get login response")]
    public void GetLoginResponse()
    {
        // Code to get login response
        _auditLogger.LogResponse("POST", "/login", 200);
    }
}

In this example, we've added audit logging to the SendLoginRequest and GetLoginResponse steps. We're logging the request and response details, including the request method, URL, and status code.

Conclusion

Q: What is a scenario audit in NBomber?

A: A scenario audit is a detailed report of the requests and responses made during a specific scenario or step in a test run. It provides a comprehensive view of the interactions between the client and the server, including request and response times, status codes, and any errors that may have occurred.

Q: Why are scenario audits important?

A: Scenario audits are important because they provide a more comprehensive view of your application's behavior, allowing you to test and validate more scenarios and edge cases. They also help you identify performance bottlenecks, debug issues, and optimize the overall user experience.

Q: How do I implement scenario audits in NBomber?

A: To implement scenario audits in NBomber, you need to create a scenario, add audit logging to your scenario, and configure audit logging in your NBomber configuration file. You can use the IAuditLogger interface to log requests and responses, and configure audit logging to write logs to a file or database.

Q: What are the benefits of scenario audits?

A: The benefits of scenario audits include:

Improved Debugging: With a detailed audit of each request and response, you can quickly identify and diagnose issues that may be causing problems in your application.
Enhanced Performance Optimization: By analyzing the performance of individual requests and responses, you can identify areas where your application can be optimized to improve overall performance.
Increased Test Coverage: Scenario audits provide a more comprehensive view of your application's behavior, allowing you to test and validate more scenarios and edge cases.

Q: How do I configure audit logging in NBomber?

A: To configure audit logging in NBomber, you need to set up the IAuditLogger interface to write logs to a file or database. You can do this by adding the following configuration to your NBomber configuration file:

{
    "auditLogger": {
        "type": "file",
        "filePath": "audit.log"
    }
}

Q: Can I use scenario audits with other testing frameworks?

A: Yes, you can use scenario audits with other testing frameworks, including xUnit, NUnit, and MSTest. However, you may need to modify the implementation of the IAuditLogger interface to work with your specific testing framework.

Q: How do I view the audit logs?

A: To view the audit logs, you can use a tool such as a log viewer or a database client to view the logs stored in the file or database. You can also use the IAuditLogger interface to retrieve the logs programmatically.

Q: Can I customize the audit logging behavior?

A: Yes, you can customize the audit logging behavior by modifying the implementation of the IAuditLogger interface. You can also add custom logging behavior by implementing additional interfaces or classes.

Q: How do I troubleshoot issues with scenario audits?

A: To troubleshoot issues with scenario audits, you can use the following steps:

Check the audit logs to see if there are any errors or issues.
Verify that the IAuditLogger interface is correctly implemented and configured.
Check the NBomber configuration file to ensure that audit logging is enabled.
Use a debugger or logging tool to inspect the code and identify any issues.

Conclusion

In this article, we've answered some frequently asked questions about scenario audits in NBomber. We've discussed the benefits of scenario audits, how to implement them, and how to troubleshoot issues. By using scenario audits, you can gain a deeper understanding of your application's behavior and improve the overall user experience.