Tosca Object Synchronization Techniques

In the world of test automation, one of the most common challenges is handling the synchronization between the automation tool and the application under test. Sometimes, applications load elements dynamically or take time to respond after a user action. If your test script moves too quickly, it may try to interact with an element that isn’t yet available, leading to false failures. Tosca, a leading model-based automation tool, provides robust Object Synchronization Techniques to manage such timing issues effectively.

In this blog, we’ll explore the various synchronization strategies Tosca offers to ensure your test cases are both stable and efficient.


🚦 What is Object Synchronization in Tosca?

Object synchronization is the process of waiting for a UI element or object to be in the desired state (e.g., visible, enabled, loaded) before the test interacts with it. Tosca automatically synchronizes objects to a certain extent, but advanced test scenarios may require explicit synchronization settings to handle varying load times or dynamic content.


🔧 Key Synchronization Techniques in Tosca

1. WaitOn Property

Each Tosca TestStep has a property called WaitOn, which can be set to True to make Tosca wait until the object is available in the specified state before proceeding.

Use case: Wait for a button or field to appear or become enabled.

How to use:

Select the TestStep.

Set WaitOn = True in the properties pane.

This enables Tosca to poll for the object until it becomes available (within the default timeout).


2. Timeout Settings

Tosca allows customization of timeouts globally or at the TestStep level:

Global timeout: Set under Settings > TBox > SynchronizationTimeout.

Local timeout: Set using the Timeout property of a specific TestStep.

This flexibility allows you to fine-tune synchronization without slowing down the entire test suite unnecessarily.


3. Explicit Wait using Buffer or Loops

In some cases, you can implement explicit waits using Tosca Buffers and loops.

Example:

Use a loop to retry an action (like clicking a refresh button) until a condition (like element visibility) is met.

Useful when polling or waiting for status updates in dashboards or reports.


4. Dynamic Wait Using Conditions

You can use If conditions or Validation TestSteps combined with loops to wait for a specific object state.

Example:

mathematica

Copy

Edit

If [Element Exists] = False

   Click Refresh

   Wait 2 seconds

EndIf

This approach helps synchronize based on business logic, not just time, improving reliability.


5. Using the “Existence” or “Enabled” Properties

You can validate whether an object is present or enabled before performing actions:

Existence → Checks if the object exists in the DOM.

Enabled → Checks if the object is interactable.

Combining these with conditions allows for smart synchronization.


6. WaitOn with Conditions in Module Attributes

Tosca also supports synchronization at the module attribute level using settings like:

WaitOn: True

Timeout: 10000 (in milliseconds)

RetryInterval: 500 (check every 500ms)

These settings allow granular control over synchronization directly within the module.


🧠 Best Practices

Avoid using static delays (Sleep) as they slow down tests and may be unreliable.

Use WaitOn = True as the default first strategy.

Use loops and conditional logic for complex UI loads or polling scenarios.

Keep timeout settings reasonable to balance test speed and stability.

Always validate objects using Existence and Enabled before performing actions.


✅ Conclusion

Synchronization is the backbone of any reliable test automation framework. Tosca's rich set of synchronization techniques—from WaitOn and timeout settings to conditional waits and polling loops—ensures your tests can adapt to the dynamic nature of modern web and desktop applications.

By mastering these synchronization techniques, you can eliminate flaky tests, reduce false negatives, and build a more robust, maintainable test suite with Tosca.

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Read More : Tosca Manual Test Case Execution Features
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