Troubleshooting Common Errors in Tosca

Tricentis Tosca is a powerful test automation tool widely used for end-to-end functional and regression testing. It offers a no-code approach, making test creation accessible even to non-programmers. However, like any enterprise tool, Tosca can present challenges in the form of errors and unexpected behavior during test design or execution.

Whether you're a beginner or an experienced Tosca user, knowing how to troubleshoot common issues is essential to ensure test stability and maintain productivity. In this blog, we’ll cover the most frequent errors faced in Tosca and practical ways to resolve them.


1. Module Not Identifying Elements Correctly

Symptoms: Test steps fail because the module cannot locate elements in the application.

Causes:

Dynamic element properties (like changing IDs)

Outdated or incorrect XPaths

UI changes after scanning the module

Solutions:

Re-scan the module using Tosca XScan and check if the element's properties have changed.

Use more stable identification properties like name, label, or anchored combinations.

Utilize Tosca’s “Buffer” or “Dynamic Expressions” for handling dynamic values.


2. “Object Not Found” During Execution

Symptoms: Execution fails with an error stating that the object couldn’t be found.

Causes:

Application not fully loaded before execution

Timing issues in test steps

Incorrect wait times

Solutions:

Use “WaitOn” or “Synchronization” settings to wait until the element appears.

Add appropriate delays or use “Wait for Property” instead of hard-coded waits.

Check if the correct screen or module is active at the time of execution.


3. TestCase Fails to Execute Due to Missing Test Data

Symptoms: Execution logs show “No data found” or incomplete data entries.

Causes:

Missing or improperly linked test data in TestCaseDesign

Excel or database connections not configured correctly

Solutions:

Recheck the TestCase-Data binding.

Make sure the test sheet is properly imported and mapped.

Validate external data sources like Excel sheets or databases using Tosca's data wizard.


4. Execution Stops Unexpectedly

Symptoms: Test execution halts or skips steps unexpectedly.

Causes:

Undefined behavior in conditional statements

Use of “ContinueOnError” or “Verify” instead of “ActionMode”

Solutions:

Debug the flow logic—ensure conditions and loops are properly defined.

Review the execution logs for skipped steps and error messages.

Avoid using “Exit” conditions unless required, and use proper verification points.


5. Tosca Workspace Corruption or Performance Issues

Symptoms: Tosca crashes, runs slowly, or shows workspace errors.

Causes:

Corrupted workspace due to improper shutdowns

Heavy test suites with insufficient system resources

Solutions:

Use “Project → Repair Project” to fix workspace issues.

Regularly back up your workspace.

Optimize test cases by modularizing reusable steps and deleting unused modules or objects.


6. Automation Engine Compatibility Issues

Symptoms: Modules scanned but don’t behave as expected during execution.

Causes:

Mismatch between Tosca version and Automation Engine version

Unsupported browser or desktop application version

Solutions

Ensure your browser/OS and Tosca versions are compatible (refer to the Tricentis support matrix).

Update Tosca and the Automation Engine together to avoid version conflicts.


Conclusion

Troubleshooting in Tosca requires a good understanding of its components—Modules, TestCases, ExecutionLists, and TestData. By approaching errors methodically and using Tosca’s built-in tools like logs, XScan, and test configuration, you can quickly identify and resolve issues. Regular workspace maintenance, modular design, and keeping the toolset updated are key to reducing errors and improving the overall test automation experience.

Learn Tosca Training in Hyderabad

Read More : Building Scalable Tosca Test Automation Frameworks

Read More : Tosca Service Virtualization Capabilities


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