Provided here are commonly encountered SoapUI interview questions along with their answers for your perusal:
Composing an interview article can be demanding, given that the array of questions shared can never be complete and real-world interviews don’t abide by a Q&A setup.
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It is advised to study SoapUI concepts from this all-inclusive tutorial series which encompasses detailed examples.
During an interview, the queries typically relate to your professed experience.
For instance: If you claim to have experience with SoapUI for 5 years, examining the functional aspects of an application and executing load tests – then you might be asked some SoapUI testing interview questions about:
- The kind of application you tested.
- The degree of your involvement.
- Any obstacles encountered.
- Application of automation best practices.
- The extent of usage of groovy scripting.
- Your method of handling data from data sources.
The list goes on… The responses to these queries are dictated by the situation and experience, with no universal solution applying to all.
Nonetheless, here is a catalogue of typical SoapUI Web Services interview questions that are usually put forth during the functional and basic evaluation of SoapUI knowledge in interviews.
34 Frequently Encountered SoapUI Interview Questions and Responses
The questions could be as described below:
Q #1. How would you define web services?
Answer. Web services are web components that enable data exchange between client and server. Clients dispatch web requests to servers, which reply suitably. These requests and responses are interconnected, and distinct requests instigate specific responses.
Web services are software applications accessible over the Internet, predominantly employed for communication with web-based applications employing XML messaging concepts. For instance, we can access a particular location on Google Maps by utilizing the suitable web service URL and inputting appropriate data.
Q #2. What is the biggest obstacle when testing web services?
Answer. The primary difficulty when testing web services is their absence of a graphical user interface (GUI), unlike most functional testing approaches that hinge on GUI interaction.
Q #3. Which communication channels are available for web services?
Web services normally integrate with the following protocols:
- HTTP / POST
- HTTP / GET
- SOAP
These channels facilitate communication with clients while unveiling web services. HTTP / POST protocol guarantees secure information exchange between clients. The HTTP / GET protocol allows clients to partially view the data transferred in the browser’s address bar. SOAP is employed for secure transfer of private data.
Q #4. What are the different constituents used in web services?
Web services deploy four key components:
- WSDL – Web Service Description Language
- SOAP – Simple Access Object Protocol
- UDDI – Universal Description, Discovery, and Integration
- RDF – Resource Description Framework
- XML – eXtensible Markup Language
Q #5. What tools are employed to test web services?
For functional testing of web services, the following tools can be utilized:
- SoapUI
- RESTClient – a Firefox add-on
- JMeter – a performance testing tool that also supports functional testing of web services
Q #6. Can you explain WSDL?
Answer. WSDL, an acronym for Web Service Description Language, is an XML document describing the service layer, which includes the origin of the web service, headers, port types, and request and response data. WSDL supplies information about web methods and the web service itself.
It outlines:
- The origin of the web service
- Information contained in the header
- Type of port
- Input and output messages
For comprehensive information and examples, you can refer to this article: https://iptvassist.com/web-services-api-testing-tool-soapui-tutorial-1/
Q #7. What is the significance of the WSDL document in web service testing?
Answer. Validation of web services can only be accomplished with the WSDL document, as it is crucial for setting up web services in SoapUI. If the WSDL document is invalid, SoapUI will immediately produce an exception.
Q #8. Can you explain UDDI?
Answer. UDDI, which stands for Universal Description, Discovery, and Integration, represents a directory or worldwide repository encompassing all web services. New web services can also be registered on this platform. UDDI is the location where exhaustive WSDL definitions are stored.
UDDI incorporates a discovery layer for web services and houses detailed information about them. Global web services can be deployed on http://uddi.xml.org/
Q #9. Can you tell us what SOAP is?
Answer. SOAP, or Simple Object Access Protocol, utilizes XML to interact with web-based applications. SOAP employs XML-based content for communication between a pair of client devices over any network.
Q #10. What is the message format implemented by the SOAP protocol?
Usually, SOAP-based web services are composed using XML, which provides a standardized message format acknowledged universally. This format is easy to interpret, facilitates error detection, and circumvents interoperability issues.
A representative SOAP message format goes as follows:
POST /InStock HTTP/1.1
Host: localhost
Content-Type: application/soap+xml; charset=utf-8
Content-Length: 399
SOAPAction: “http://www.example.com/soap-envelope”
<?xml version=”1.0??>
<soap:Envelope xmlns:soap=”http://www.example.com/soap-envelope”>
<soap:Header>
</soap:Header>
<soap:Body>
<m:TutorialName>SoapUI</m:TutorialName>
</soap:Body>
</soap:Envelope>
Q #11. What are the advantages of SOAP?
Answer. SOAP, being XML-based, is indifferent to the platform or programming language. It circumvents limitations of Remote Procedure Calls (RPC) which are often obstructed by firewalls and proxy servers.
Q #12. What elements does a SOAP document contain?
Answer. A SOAP document incorporates the following constituents:
- Envelope: The top-tier tag identifying the XML document as a SOAP message.
- Header: Carries header details.
- Body: Specifies the call and response data.
- Fault: Accommodates errors and status data.
Q #13. What do you understand by protocols and what are the prime types employed in web services?
Protocols denote standardized norms for communication between hardware devices using software applications. A variety of protocols are employed in Internet and Intranet applications, such as:
- TCP (Transmission Control Protocol): Norms for exchanging messages between different Internet applications.
-
Internet Protocol: Norms for transmitting and receiving data between different Internet addresses.
-
HTTP (Hypertext Transfer Protocol)/ FTP (File Transfer Protocol)/ DHCP (Dynamic Host Configuration Protocol): Protocols for data transfer other than Internet applications.
Q #14. What is XML?
Answer. XML (eXtensible Markup Language) is a markup language utilized for storing, sharing, and structuring data. XML documents are structured using tags. For more information and examples, refer to this article: https://iptvassist.com/web-services-api-testing-tool-soapui-tutorial-1/
Q #15. What is the distinction between SoapUI and SoapUI Pro?
Answer. SoapUI denotes a web service testing tool, while SoapUI Pro is its commercial variant. SoapUI facilitates the creation of functional, security, and load testing test suites. SoapUI Pro offers advanced attributes such as drag and drop, Data Driven testing, sophisticated reporting, and coverage analysis. For further details, check out this article: https://iptvassist.com/soapui-tutorial-12-soapui-pro-features/
Q #16. What tasks can be executed with SoapUI?
- Automated testing, comprising functional testing, load testing, and Data Driven testing.
- Integrated reporting tool and export of test result records.
- Assertion of services using several sorts of assertions.
Q #17. What sequence should be adhered to when constructing a suitable testing project in SoapUI?
A suitable SoapUI project should uphold the following sequence:
- Test Suite: Combines functional tests and logical units.
- Test Case: A collection comprising numerous test steps for particular aspects of the service.
- Test Step: A collection of functional tests.
Q #18. How can web services be automated in SoapUI?
Answer.
- Establish a project and append the WSDL file.
- Add test suites, test cases, and test steps in that sequence.
- Incorporate custom programming or validation using Groovy steps.
- Invoke external data sources, if needed.
- Include necessary assertions.
- Then execute the tests.
Q #19. What are SoapUI assertions?
Answer. Assertions make comparisons between parts or the complete response message to the anticipated result.
Q #20. What are the principal types of assertions accessible in SoapUI?
SoapUI offers various types of assertions, for example:
- Simple contains
- Schema compliance
- Simple not contain
- Soap Faults
- Response SLA
- XPath Match
- XQuery Match
- WS security status
- Script Assertion
- WS-Addressing Request or Response Assertion
In SoapUI NG Pro version, the Equals assertion is also accessible.
Q #21. Can you explain the XPath Assertion in SoapUI?
In SoapUI, the XPath assertion is employed to assert web service response values grounded on specified absolute paths. If the absolute path corresponds to the response value, the test case or test suite will be acknowledged as PASS. If not, it will be marked as FAILED. The results of assertions can be viewed in the Assertion tab at the bottom of the screen.
Q #22. What is Data Driven testing?
Data Driven testing involves housing test data, including input and expected output, in an external data source such as an Excel file, database, or XML file. This data is then iterated using the respective component. In SoapUI, Datasource and Datasource Loop test steps are employed for data driven testing.
Q #23. What are the varied types of assertions used in SoapUI?
Answer. SoapUI extends support to various types of assertions, including:
- Contains and Not Contains
- XPath Match
- XQuery Match
- Schema compliance
- Soap Faults
- Response SLA
- WS security Status
- Script Assertion
- WS-Addressing Request or Response Assertion
Q #24. How can assertions be introduced in SoapUI?
Answer. To introduce assertions:
- Obtain a response to a request as you typically would.
- Click on “Add Assertions” atop the log tabs.
- Set up the assertions according to the requisite type and data.
For further information and examples, you can refer to this article: https://iptvassist.com/soapui-tutorial-5-soapui-assertions/
Q #25. What is Groovy script and where is it put into use?
Answer. Groovy is a scripting language that internally incorporates all Java libraries, authorizing customization and addition of custom validations to SoapUI tests.
Q #26. Is it possible to input custom code in SoapUI? If yes, what can be input?
Answer. Yes, SoapUI permits the input of custom code via Groovy steps and Javascript steps.
Q #27. How can tests be categorized in SoapUI?
Answer. Test suites are utilized to categorize tests in SoapUI. Forming a new test suite and appending tests as test cases beneath it enables distinct sets of tests to be sorted.
Q #28. How can the responses obtained be preserved?
Answer. To conserve response values, select the necessary request and stipulate the “Dump file” location in its properties.
Q #29. What properties are accessible in SoapUI?
In SoapUI, properties are available at three levels:
Custom Properties or Project Level Properties: These properties can be appended multiple times depending on requirements and can be put into use in any test suites, test cases, or test steps within the project.
Test Suite Level Properties: Testers can incorporate their own properties with relevant data under test suites. These properties are available only within the corresponding test suite.
Test Case Level Properties: Testers can produce their own properties within test cases to store test data. These properties can be accessed within the corresponding test cases.
Q #30. How can the endpoint be parameterized in SoapUI?
Answer.
- Construct a project with the endpoint data.
- If required, modify the endpoint and ascribe it to a property using the property expansion test step.
- Ensure the request data is available in the given endpoint address.
- During execution, a property will hold the test value. Inputting different values to the property is simple via the IDE.
Q #31. Where can Groovy Script Test steps be employed in SoapUI?
In SoapUI, Groovy Script Test steps can be utilized in two places:
- Groovy Script Test step within the test case
- Script Assertion Test Step
Q #32. What is the distinction between SOAP and REST?
Answer.
- SOAP is a protocol, while REST is an architecture. SOAP allows dispatching SOAP envelopes to REST-based applications.
- REST upholds different message formats, while SOAP only allows XML.
- REST services are swifter and simpler to manage.
- SOAP is bound to protocols like SMTP and HTTP, while REST relies solely on HTTP.
- SOAP is a safer and more structured format.
- REST does not rest on any specific standards and upholds various messaging formats like JSON, CSV, and XML.
- SOAP web services enable building clients with RESTful services.
- SOAP was developed for distributed computing, while REST garnered recognition for its lightweight, performance-focused approach.
- REST is stateless, whereas SOAP is stateful.
- REST employs Uniform Resource Identifier (URI) and offers methods like GET, PUT, POST, and DELETE to expose resources.
- SOAP uses named operations and interfaces to effectuate business logic.
For extensive information, refer to this article: https://iptvassist.com/soapui-tutorial-13-soap-vs-rest-services/
Q #33. What is RDF?
Answer. RDF stands for Resource Description Framework. It comprises descriptions of web resources such as title, author, content, and copyright information. RDF is composed using XML. For more information and examples, refer to this article: https://iptvassist.com/web-services-api-testing-tool-soapui-tutorial-1/
Q #34. What data sources can be utilized in SoapUI?
Answer.
- Excel Files
- CSV Files
- ODBC Sources
- SQL / ADO Objects
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