How to Use Tosca's Test Configuration Parameters

Tosca by Tricentis is a powerful model-based test automation tool widely used in enterprise environments for end-to-end testing. One of its most useful features is Test Configuration Parameters (TCPs), which provide flexibility and control in managing test execution. TCPs enable testers to create reusable test cases by passing dynamic values without hardcoding them. This significantly enhances test maintenance, scalability, and efficiency.

In this blog, we’ll explore what Test Configuration Parameters are, how to create and use them, and the best practices to follow when working with TCPs in Tosca.

What Are Test Configuration Parameters?

Test Configuration Parameters are custom-defined key-value pairs that can be associated with test cases, test case folders, or execution lists in Tosca. They help manage configuration data such as environment URLs, browser types, credentials, or any other variable data that may differ across test runs.

By using TCPs, you can avoid duplicating test cases for each data variation, thereby improving test reusability and consistency.

Why Use Test Configuration Parameters?

• Centralized control of test settings and input values
• Improved flexibility for running tests across environments (e.g., dev, QA, production)
• Data reusability across multiple test cases
• Cleaner test cases with fewer hardcoded values
• Ease of maintenance when test data or configuration changes
• Creating Test Configuration Parameters

Here’s how to create and use TCPs in Tosca:

1. Open the Tosca Commander

Launch Tosca Commander and navigate to your TestCases or ExecutionList section.

2. Define the Test Configuration Parameter

Right-click on the TestCase, TestCaseFolder, or ExecutionList.

Select “Create TestConfiguration Parameter.”

Enter a name (e.g., URL, Browser, Username) and assign a value.

You can create multiple TCPs at different levels. If a TCP exists at both the folder and test case level, the test case-level parameter takes precedence.

Accessing TCPs in TestSteps

Once the TCPs are defined, you can reference them in your test steps using the following syntax:

{TCPName}

For example, if you defined a TCP called URL, you can use {URL} as a dynamic value in a test step that opens the browser.

Example:

plaintext

Action: OpenUrl

Input: {URL}

This makes your test case reusable across different environments by simply changing the TCP value at the ExecutionList level.

Using TCPs with Business Components

TCPs can also be used inside Modules and Business Components, allowing dynamic inputs to flow into reusable automation blocks. This is especially helpful in large, enterprise-scale testing environments.

Best Practices for Using TCPs

• Define global TCPs at the folder or execution list level to maintain a centralized structure.
• Name TCPs clearly and consistently (e.g., App_URL, User_Email, Env_Type).
• Use inheritance wisely – higher-level TCPs are inherited by nested items unless overridden.
• Document your TCP usage so that others on the team understand where and why parameters are used.
• Validate TCP values before executing tests to prevent runtime failures due to missing or incorrect data.

Final Thoughts

Test Configuration Parameters are a key feature in Tosca that bring agility, scalability, and control to test automation projects. By separating test logic from test data, TCPs allow teams to focus on building robust and maintainable test cases that adapt easily to changes.

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