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SoapUI Interview Questions and Answers

Updated May 21, 2025

What is SoapUI?

SoapUI is an open-source tool used for functional and non-functional testing of SOAP and RESTful web services. It supports functional testing, performance testing, interoperability testing, regression testing, and more.

What is SoapUI Pro?

SoapUI Pro is the commercial version of SoapUI. It offers advanced features like data-driven testing, enhanced reporting, and support for complex scenarios, making it ideal for enterprise use.

How to use SoapUI?

  1. Right-click on Projects in the Navigator and select New SOAP Project.
  2. Enter a name in the Project Name field and click OK.
  3. Right-click the project name and select Add WSDL.
  4. Enter the WSDL path and click OK.
  5. The service operations will appear in the Navigator.
  6. Double-click the project or interface name for summaries and configurations.

What is an assertion in SoapUI?

An assertion in SoapUI is a validation mechanism to verify the response received from a web service request matches the expected outcome.

What are the major types of assertions available in SoapUI?

  • Property Content
  • Compliance
  • Status
  • Standard
  • Script
  • SLA
  • JMS
  • Security

What is WSDL in SoapUI?

WSDL (Web Services Description Language) is an XML-based language used to describe the functionality of a SOAP web service. SoapUI uses it to generate test requests, mock services, and assertions.

How to consume SOAP web service in Java?

  1. Use Gradle or Maven to build your project.
  2. Run the SOAP service locally or remotely.
  3. Generate domain classes from the WSDL using tools like wsimport.
  4. Implement the service client.
  5. Configure components.
  6. Run and verify the application.

How to automate test cases in SoapUI?

  1. Create a new SOAP project with a WSDL URL.
  2. Double-click on a request step to configure input values.
  3. View the response and trigger the request.
  4. Assertions can be added for validation.

How to do load testing in SoapUI?

  1. Right-click a TestCase and select New LoadTest.
  2. Name the test and click OK.
  3. Adjust test properties.
  4. Click Run in the editor toolbar.
  5. Add LoadTest Assertions like Max Response Time.
  6. Optionally, run tests in LoadUI Pro for advanced features.

What is an endpoint in SoapUI?

An endpoint is the URL where a web service is hosted. It represents the location through which the API interacts with the client.

How to parameterize in SoapUI?

  1. Create a SOAP project and add test suites and test steps.
  2. Add a DataSource test step (e.g., Excel).
  3. Configure the Excel file and worksheet name.
  4. Map data columns to properties.
  5. Add a DataSource Loop to iterate through test steps.
  6. Configure source and target steps accordingly.

Difference between SoapUI vs Postman?

SoapUI Postman
Supports SOAP and REST API testing Primarily supports REST API testing
Test script reusability supported Limited script reusability
Data-driven testing in Pro version Data-driven testing via JSON/CSV
Reports in Pro version only Free and Pro versions support reports
Uses Groovy scripting Uses JavaScript scripting

What are Web Services?

Web services are modular, platform-independent applications that communicate over the internet using open standards such as HTTP, XML, and SOAP to exchange data between systems.

What are the various components used in web services?

  • SOAP (Simple Object Access Protocol)
  • WSDL (Web Services Description Language)
  • UDDI (Universal Description, Discovery, and Integration)

What is the SOAP web service?

SOAP (Simple Object Access Protocol) is a protocol for exchanging structured information using XML over HTTP. It enables communication between applications running on different operating systems.

What is the difference between SOAP and REST?

SOAP REST
Protocol with official standards Architectural style without strict standards
Uses XML and HTTP Supports HTTP, JSON, XML, URL
Higher resource and bandwidth usage Lightweight and faster
Uses WSDL Uses WADL or none
Service interface exposure via annotations URL-based business logic exposure

What languages does SoapUI support?

SoapUI supports Groovy as its primary scripting language. JavaScript is also supported in versions above 3.0.

Explain SOAP HTTP Binding?

SOAP HTTP Binding defines how the SOAP message maps to HTTP requests and responses. It involves headers like Content-Type, Content-Length, and SOAPAction.

What is the SOAP header and what information does it include?

The SOAP Header is an optional element used to pass additional metadata or application-specific information like security tokens or authentication data. It includes:

  • Actor attribute: Defines the next recipient of the header element.
  • mustUnderstand attribute: Specifies if a header must be processed or can be ignored.

What are the syntax rules for SOAP?

  • Messages must be encoded in XML.
  • Must use SOAP Envelope namespace.
  • Should not include DTD references.
  • Must not have XML processing instructions.
  • Should use SOAP Encoding namespace if encoding is used.

What are the test steps available in SoapUI?

SoapUI offers a variety of test steps for building test cases. Some of the common test steps include:

  • SOAP Request
  • REST Request
  • HTTP Request
  • DataSource
  • DataSource Loop
  • Properties
  • Delay
  • Groovy Script
  • JDBC Request
  • Run TestCase

What is a TestSuite in SoapUI?

A TestSuite is a logical grouping of test cases in SoapUI. It represents a complete set of functional tests that verify a specific aspect of the service or application under test.

What is the use of a Groovy script in SoapUI?

Groovy scripts are used in SoapUI to perform advanced logic, manipulate test data, handle custom validation, and interact with external systems. They provide flexibility beyond standard test steps.

What are Property Transfers in SoapUI?

Property Transfers are used to move values between test steps, such as from a response to a request. This is useful for chaining test steps together and for data dependency handling between services.

How to handle dynamic responses in SoapUI?

You can use XPath or JSONPath assertions and Property Transfers to extract dynamic values (like session IDs or tokens) from responses and reuse them in subsequent requests.

What is the difference between DataSource and DataGen test steps?

DataSource DataGen
Reads test data from external files (Excel, XML, JDBC, etc.) Generates random or predefined test data internally
Used for data-driven testing Used for generating mock test data

How do you create a MockService in SoapUI?

  1. Right-click on the interface and select Generate MockService.
  2. Choose the operations you want to mock.
  3. Customize mock responses if needed.
  4. Start the MockService and hit the endpoint from a client to test it.

What is the use of TestRunner in SoapUI?

TestRunner is a command-line utility in SoapUI that allows you to run tests without opening the GUI. It's commonly used for CI/CD integrations and automated test executions.

How to integrate SoapUI with Jenkins?

  1. Install SoapUI on the Jenkins server.
  2. Use the SoapUI TestRunner command in a Jenkins build step.
  3. Store SoapUI project files in a version control system like Git.
  4. Configure Jenkins to pull the project and run tests using shell or batch commands.

How to import a REST project in SoapUI?

  1. Click on File > New REST Project.
  2. Enter the REST API endpoint URL.
  3. SoapUI will analyze the service and create the structure.
  4. You can now add methods, parameters, headers, and assertions to your REST requests.

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