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Top 100 TOSCA Automation Testing Interview Questions and Answers with Real-Time Examples

Section 1 – TOSCA Basics

1. What is TOSCA Automation Testing and why is it used?

Answer:
TOSCA is a model-based test automation tool from Tricentis that enables test automation for web, desktop, API, mobile, and BI apps without scripting.

  • Reduces maintenance through reusable modules.
  • Supports CI/CD pipelines for Agile/DevOps.

Example:
In a retail ERP migration, TOSCA automated 800 regression tests across SAP and web portals, cutting regression cycles from 10 days to 2 days.

2. What is Model-Based Test Automation (MBTA) in TOSCA?

Answer:

  • Instead of writing scripts, TOSCA creates models of application screens/modules.
  • Test cases are built by combining these reusable modules.
  • When the application changes, updating the module updates all linked test cases.

Example:
A “Checkout” module was reused in 40 test cases for an e-commerce site. When the checkout button’s locator changed, updating it once fixed all tests.

3. What are Modules in TOSCA?

Answer:
Modules are collections of controls/elements that represent parts of the application under test.

  • Created via scanning tools like XScan or API Scan.
  • Can be linked to multiple test cases.

Snippet:

Module: LoginPage

  - UsernameField

  - PasswordField

  - LoginButton

4. What is TOSCA Commander?

Answer:

  • The main interface where testers design test cases, manage execution lists, link requirements, and view results.
  • Acts as the IDE for TOSCA.

5. Explain the TOSCA Workspace concept.

Answer:

  • A workspace contains all modules, test cases, execution logs, and configurations.
  • Can be Single-user (local) or Multi-user (connected to a repository).

6. What is the difference between TOSCA’s Standard Modules and Custom Modules?

Answer:

  • Standard Modules: Pre-built by Tricentis (e.g., TBox Wait, Loop, If).
  • Custom Modules: Created by scanning application UIs/APIs.

    During TOSCA Training, learners are taught how to leverage both Standard and Custom Modules effectively to maximize test automation efficiency.

7. What is XScan in TOSCA?

Answer:

  • The scanning utility to capture application controls for module creation.
  • Supports desktop, web, SAP, and mobile.

Example:
Captured 12 SAP transaction screens into reusable modules for automated purchase order processing.

8. How does TOSCA handle object changes in applications?

Answer:

  • Use Dynamic Identifiers or Parameterized Properties in modules.
  • Update modules instead of all test cases when locators change.

9. What are Requirements in TOSCA?

Answer:

  • Link business requirements to test cases for traceability.
  • Requirement status changes based on linked test execution results.

10. What are ExecutionLists in TOSCA?

Answer:

  • Groups of test cases for execution.
  • Supports scheduling and parallel execution.

11. How do you execute TOSCA tests in different environments?

Answer:

  • Use ExecutionList Configuration Parameters to set environment variables.
  • Pass parameters via CI pipelines.

12. What are TestStepBlocks in TOSCA?

Answer:

  • Groups of reusable TestSteps.
  • Can be linked to multiple test cases.

Example:
A “Login” TestStepBlock reused in 30+ test cases.

13. Explain the role of TOSCA ScratchBook.

Answer:

  • Allows ad-hoc execution of test steps without saving execution logs.
  • Useful for debugging and module validation.

14. What is a TOSCA Template?

Answer:

  • A parameterized TestCase used to generate multiple instances with different data sets.
  • Supports data-driven testing.

15. How does TOSCA support manual testing?

Answer:

  • TOSCA Commander allows creation of manual test cases.
  • Testers execute them and log results for requirements traceability.

Section 2 – Test Case Design & Data-Driven Testing

16. How do you design a Test Case in TOSCA?

Answer:

  • Identify reusable Modules.
  • Drag & drop modules into the Test Case.
  • Parameterize values for flexibility.
  • Link with Requirements for traceability.

Example:
For a banking login test:

Step 1: Enter Username  → Parameter: {BankUser}

Step 2: Enter Password  → Parameter: {BankPass}

Step 3: Click Login

Step 4: Verify Dashboard → Expected: “Welcome”

17. What is Test Case Design (TCD) in TOSCA?

Answer:

  • TCD separates test logic from test data.
  • Use Classes and Instances in the TestCase-Design section.
  • Instances generate test cases automatically.

Example:
Class: “Loan Application”
Instances:

  • Applicant Age: 25, Loan Type: Home
  • Applicant Age: 45, Loan Type: Personal

TOSCA will auto-create separate test cases for each combination.

18. How do you create parameterized Test Cases?

Answer:

  • Use {ParameterName} syntax inside Test Steps.
  • Link parameters to TestCase Design Instances or Excel data.

19. How do you import test data from Excel in TOSCA?

Answer:

  • Use Excel Engine or TestSheet Import.
  • Map Excel columns to test case parameters.

Snippet:
Excel:

UsernamePasswordExpectedMsg
user1pass1Welcome
user2pass2Access Denied

20. What is the difference between Instances and Templates?

Answer:

  • Template: A test case with placeholders for data.
  • Instance: A concrete data set used to execute the template.

21. How do you manage large test data sets in TOSCA?

Answer:

  • Store in TestSheets or external DB connections.
  • Use Buffer for runtime storage.

22. What is a Buffer in TOSCA?

Answer:

  • Temporary storage for values during execution.
  • Useful for passing data between test steps or test cases.

Example:
Step 1: Capture Order ID → Store in OrderID buffer
Step 2: Search Order → Use {B[OrderID]}

23. How do you use If/Else conditions in TOSCA?

Answer:

  • Use If → Condition → Else standard modules.
  • Supports logical operators and parameter values.

Example:
If {Status} = Approved → Proceed to Payment
Else → Cancel Order

24. What are Loops in TOSCA?

Answer:

  • Do-While or For Each loops to repeat steps for multiple items.
  • Common in list processing.

Example:
Loop through all rows in a table until “Invoice” is found.

25. How do you reuse Test Steps in multiple Test Cases?

Answer:

  • Use TestStepBlocks or Library Modules.
  • Update once to reflect everywhere.

26. How do you implement data-driven testing in TOSCA?

Answer:

  • Create Template Test Case.
  • Link to a data source (Excel/TestSheet/DB).
  • Generate multiple instances automatically.

27. What is the difference between Static and Dynamic Test Cases?

Answer:

  • Static: Fixed test steps, no data variations.
  • Dynamic: Steps generated based on data at runtime.

28. How do you validate dynamic content in TOSCA?

Answer:

  • Use wildcards (*, ?) or regex in verification steps.

Example:
Expected: Welcome * → Matches “Welcome John”, “Welcome Admin”.

29. How do you link test cases to requirements?

Answer:

  • Drag requirement to the test case or vice versa in Commander.
  • Execution status updates the requirement’s pass/fail status.

30. How do you optimize data usage in TOSCA for performance?

Answer:

  • Avoid hardcoding values.
  • Use parameterization and buffers.
  • Remove unused instances to reduce execution load.

Section 3 – TOSCA Execution & CI/CD Integration

31. How do you execute test cases in TOSCA?

Answer:

  • Create ExecutionLists in TOSCA Commander.
  • Drag the desired test cases into the list.
  • Choose ExecutionMode: Manual, Automated, or Distributed.

Example:
For a regression suite, create ExecutionList_Regression and schedule it to run nightly via Tosca Distributed Execution (DEX).

32. What is Tosca Distributed Execution (DEX)?

Answer:

  • DEX allows executing tests across multiple machines in parallel.
  • Increases execution speed and efficiency for large suites.

Real-Time Use:
In a telecom project with 5,000+ test cases, DEX was set up on 8 agents, reducing execution time from 14 hours to 3 hours.

33. How do you schedule tests in TOSCA?

Answer:

  • Use Tosca Execution Server Scheduler or integrate with Jenkins/ADO.
  • Define frequency (daily, weekly, post-deployment).

Example:
Nightly smoke tests scheduled at 2 AM after CI builds.

34. How do you integrate TOSCA with Jenkins?

Answer:

  1. Install Tosca CI Client on Jenkins node.
  2. Use Jenkins “Execute Windows Batch Command”:

ToscaCIClient.exe –ExecutionList=”Regression_Suite” –ResultsDir=”C:\Reports”

  1. Publish results as HTML or JUnit reports.

35. What is the Tosca CI Client?

Answer:

  • Command-line interface to trigger TOSCA executions.
  • Supports execution lists, workspaces, and results export.

36. How do you pass parameters from Jenkins to TOSCA tests?

Answer:

  • Use CI Parameters in ToscaCIClient.
    Example:

ToscaCIClient.exe –Parameter:Env=QA –Parameter:Build=123

Inside TOSCA, {CP[Env]} and {CP[Build]} can be used.

37. How do you execute only failed test cases from the last run?

Answer:

  • Use ExecutionList Filter → Status = Failed.
  • Rerun only those in the next execution cycle.

38. How do you integrate TOSCA with Azure DevOps (ADO)?

Answer:

  • Use Tosca Azure DevOps Extension or API calls.
  • Map ADO pipelines to trigger ToscaCIClient commands.

39. How do you run TOSCA tests in a Docker container?

Answer:

  • Create a Windows-based Docker image with Tosca CI Client installed.
  • Jenkins/Azure can run the container for isolated executions.

40. How do you generate execution logs in TOSCA?

Answer:

  • Right-click ExecutionList → “Export Execution Log”.
  • Or use Tosca Reporting Server for HTML dashboards.

41. How do you execute API and UI tests together in TOSCA?

Answer:

  • Combine API TestCases and UI TestCases into one ExecutionList.
  • Ensure proper sequencing (API first, then UI validation).

42. How do you perform smoke testing in TOSCA?

Answer:

  • Tag critical test cases with “Smoke”.
  • Create an ExecutionList filtered by this tag.

43. How do you handle environment switching in execution?

Answer:

  • Store environment details in TestConfigurationParameters (TCP).
  • Change TCP value at execution time without editing test cases.

44. How do you send execution results to stakeholders automatically?

Answer:

  • Enable “Email Notification” in DEX.
  • Or have Jenkins pipeline email the exported HTML report after execution.

45. How do you handle long-running execution lists?

Answer:

  • Break into smaller parallel execution lists.
  • Use DEX Agents for a distributed run.
  • Disable unnecessary logging for speed.

Section 4 – API Testing in TOSCA

46. What is API testing in TOSCA?

Answer:

  • Validates REST, SOAP, GraphQL, or other service endpoints without UI.
  • Ensures backend logic works correctly before UI is even built.
  • Done using TOSCA API Scan & API Modules.

Example:
Testing POST /login endpoint for valid and invalid credentials before UI deployment.

47. How do you scan an API in TOSCA?

Answer:

  1. Open Tosca API Scan.
  2. Import WSDL (SOAP) or OpenAPI/Swagger (REST).
  3. API Scan generates modules (like UI modules).
  4. Drag them into TestCases.

48. How do you pass JSON body in an API request?

Answer:

  • In API module’s RequestBody field, enter JSON text or parameterize it.

Snippet:

{

  "username": "{UserName}",

  "password": "{Password}"

}

49. How do you validate API response in TOSCA?

Answer:

  • Use Verify column for specific JSON/XML fields.
  • Or use JsonPath/XPath expressions to target nested values.

Example:
Response:

{“status”:”success”,”id”:101}

Verify: status = success

50. How do you extract values from API responses?

Answer:

  • Map response field to a Buffer for later use.

Example:
OrderID from API response stored in {B[OrderID]} → used in UI order tracking.

51. How do you handle API authentication in TOSCA?

Answer:

  • Pass token in Headers (Bearer Token) or use Basic Auth fields in API module.

Example:
Header: Authorization: Bearer {AuthToken}

52. How do you chain multiple API calls in TOSCA?

Answer:

  • Use output of first API (like an auth token or ID) as input to next API.
  • Store intermediate results in buffers.

53. How do you parameterize API tests for multiple environments?

Answer:

  • Store BaseURL in TCP (Test Configuration Parameter).
  • Example: {CP[BaseURL]}/login works for QA, UAT, and Prod by changing TCP only.

54. How do you handle file uploads in API testing?

Answer:

  • Use multipart/form-data in API module.
  • Provide file path via parameter: {CP[FilePath]}.

55. How do you handle API timeouts or retries?

Answer:

  • Use RetryOnError module.
  • Configure WaitOn time and retry count in API request step.

56. How do you test SOAP services in TOSCA?

Answer:

  • Import WSDL into API Scan.
  • TOSCA auto-generates request templates with sample XML.
  • Modify parameters and verify response tags.

57. How do you validate JSON arrays in TOSCA?

Answer:

  • Use JsonPath with [*] selector.
    Example:
    Path: items[*].price → verifies price of all products in list.

58. How do you store API request/response logs?

Answer:

  • Enable “SaveLog” in API Scan execution.
  • Or export logs to HTML for reporting.

59. How do you mock APIs in TOSCA?

Answer:

  • Use Tosca API Mock Server to simulate API responses when backend is unavailable.

Example:
Simulate GET /orders returning a fixed JSON response for UI testing.

60. How do you integrate API tests in CI/CD pipelines?

Answer:

  • Trigger via ToscaCIClient in Jenkins/Azure before UI tests.
  • Fail the build if any API test fails.

Section 5 – TOSCA Modules, Object Steering & Automation Best Practices

61. What is Object Steering in TOSCA?

Answer:

  • Object Steering is Tosca’s way of identifying and interacting with UI elements during automation.
  • Uses technical identifiers (XPaths, IDs, accessibility names) stored in Modules.

Real-Time Example:
When automating SAP, Tosca uses control IDs to uniquely steer a “Customer ID” input field even if its position changes.

62. How does Tosca identify UI objects?

Answer:

  • Uses Steering Parameters from Modules, such as:
    • TechnicalID (HTML id attribute)
    • Caption (label text)
    • Index (element position)

63. What is XScan in Tosca?

Answer:

  • XScan (Explorer Scan) is Tosca’s scanning tool for creating Modules.
  • Supports technologies like HTML, SAP, Java, Mobile.
  • Stores steering parameters for each control.

64. How do you scan a web page in Tosca?

Answer:

  1. Open XScan.
  2. Navigate to the page.
  3. Select elements → Save to Module folder.
  4. Use Module in TestCases.

65. What are Dynamic Identifiers in Tosca?

Answer:

  • Element IDs that change every time (e.g., input_1234).
  • Tosca handles them using Regular Expressions or Anchors in Module properties.

Example:
TechnicalID: input_\d+ matches any ID starting with input_ and followed by digits.

66. How do you handle dynamic tables in Tosca?

Answer:

  • Use Row/Column identification with conditions like ProductName=Samsung.
  • Tosca will automatically select that row regardless of its position.

67. How do you reuse Modules across projects?

Answer:

  • Create a Common Module Library.
  • Share via Tosca Repository or Workspace Import.

68. How do you handle popups in Tosca?

Answer:

  • Scan popup window separately in XScan.
  • Use Activate Window before interacting with controls.

69. How do you handle iframes in Tosca?

Answer:

  • XScan detects iframe context.
  • Ensure the Module contains the iframe switch info.

70. How do you handle controls that are not directly visible?

Answer:

  • Scroll into view before interacting.
  • Use steering parameter Visible=True.

71. How do you validate UI element properties?

Answer:

  • Use Verify action mode on Module attribute like Enabled, Visible, Text.

72. What is Steering by Anchors?

Answer:

  • Locating elements using nearby static text or controls.
  • Useful when control IDs are dynamic but labels are fixed.

73. How do you handle multi-window applications?

Answer:

  • Use Window Context in Modules.
  • Activate specific window before performing action.

74. What is a TechnicalID in Tosca?

Answer:

  • A unique identifier for a UI element used by Tosca to steer it.
  • Stored in the Module definition.

75. How do you handle shadow DOM elements in Tosca?

Answer:

  • Enable Shadow DOM Support in Tosca.
  • Scan inside shadow roots in XScan.

76. How do you optimize Module scanning?

Answer:

  • Scan only required controls, not the entire page.
  • Use proper naming conventions.

77. How do you handle mobile automation in Tosca?

Answer:

  • Use Tosca Mobile+ with Appium.
  • Scan mobile screens via Mobile Scan.

78. What are Automation Best Practices in Tosca?

Answer:

  1. Modularize tests.
  2. Use TestCase Design (TCD) for reusability.
  3. Parameterize everything.
  4. Minimize maintenance by using anchors & regex.

79. How do you maintain large automation suites?

Answer:

  • Organize Modules logically.
  • Use Naming Conventions.
  • Maintain common libraries separately.

80. How do you debug failed Tosca executions?

Answer:

  • Check Execution Log details.
  • Verify steering parameters in Modules.
  • Rerun test in Debug mode to inspect step-by-step execution.

Section 6 – Advanced Tosca Features, Reporting & Real-Time Project Scenarios

81. What is Tosca BI Testing?

Answer:

  • Tosca BI (Business Intelligence) Testing validates data transformations, ETL processes, and reports.
  • Ensures data extracted from source matches what is loaded into target systems (e.g., Data Warehouse).

Example:
Verifying that sales figures in a Tableau dashboard match the raw transactional database.

82. How does Tosca perform BI testing?

Answer:

  • Uses BI Modules for source & target data connections.
  • Compares datasets at field, row, and aggregate levels.

83. How do you connect Tosca to a database?

Answer:

  • Use Tosca DB Expert or ODBC connection.
  • Execute SQL queries and validate results directly in TestSteps.

84. How do you perform ETL validation in Tosca?

Answer:

  1. Query source DB before ETL load.
  2. Query target DB after load.
  3. Compare using Tosca BI Compare feature.

85. What is Tosca Distributed Execution (DEX)?

Answer:

  • Runs tests across multiple execution agents to reduce test time.
  • Useful for large regression suites.

86. How do you set up Distributed Execution in Tosca?

Answer:

  • Install Execution Agents on multiple machines.
  • Configure DEX Server to distribute tests.

87. What is Tosca Commander?

Answer:

  • The main desktop interface of Tosca where you create, manage, and execute tests.

88. What is Tosca Execution Log?

Answer:

  • A detailed log of every executed step, with timestamps, screenshots, and results.
  • Essential for debugging failures.

89. How do you capture screenshots in Tosca execution?

Answer:

  • Enable Log Screenshot on Error in settings.
  • Screenshots get attached to Execution Log.

90. How do you perform API & UI combined testing in Tosca?

Answer:

  • Chain API calls to prepare data → Execute UI steps to verify it.

Example:
Create an order via API → Open web app and confirm order in UI.

91. What is the advantage of Tosca TCD (TestCase Design)?

Answer:

  • Centralized test data management.
  • Auto-generates multiple TestCases from one template.

92. How do you integrate Tosca with Jenkins?

Answer:

  • Use Tosca CI Client in Jenkins pipeline.
  • Run specific TestEvents and publish results.

93. How do you handle encrypted data in Tosca?

Answer:

  • Use Crypto functions to encrypt/decrypt values.
  • Store sensitive data securely in Tosca repository.

94. What is Tosca ScratchBook?

Answer:

  • A test execution sandbox to run TestSteps instantly without affecting Execution Lists.
  • Great for debugging a single TestCase.

95. How do you work with SAP applications in Tosca?

Answer:

  • Use Tosca SAP Engine.
  • Scan SAP GUI screens & steer controls using SAP-specific modules.

96. How do you manage test data across multiple environments?

Answer:

  • Use Test Configuration Parameters (TCP) to switch URLs, DB connections, credentials based on environment.

97. How do you perform risk-based testing in Tosca?

Answer:

  • Assign risk ratings to Requirements.
  • Tosca auto-prioritizes high-risk areas during execution.

98. What is a real-time Tosca automation scenario you handled?

Answer:

  • Scenario: Retail e-commerce platform had nightly UI & API tests.
  • Tosca executed:
    • API tests for product catalog sync.
    • UI tests for checkout flow.
    • BI tests for daily sales reports.
  • Integrated in Jenkins → results emailed to stakeholders daily.

99. How do you reduce Tosca test maintenance?

Answer:

  1. Use reusable Modules.
  2. Parameterize as much as possible.
  3. Use anchors for dynamic controls.
  4. Implement Common Library for all projects.

100. Why should a company adopt Tosca for automation?

Answer:

  • Codeless automation speeds up onboarding.
  • Supports UI, API, DB, BI, and Mobile testing in one tool.
  • Strong integration with CI/CD.
  • Lower maintenance costs compared to code-based frameworks.
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