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Mock Services Testing Using SoapUI

Mock Service is very interesting feature of SoapUI tool. Service Mocking is also known as the simulation, isolation or visualization of an environment. It is the practice of developing a facsimile environment which works in a similar way the environment you’re facsimileing. Mock Service in SoapUI can be achieved for both SOAP as well as RESTful web service projects. In this tutorial we are going to learn how to create, edit and invoke mock services for both of these projects.

SOAP Mock Service: Using this feature of SoapUI, we can mock the SOAP web services request message from its SOAP response message. This involves below steps.


Mock Services Testing Using SoapUI


Step 1: Let’s create SOAP Mock Service.Choose existing SOAP project and select “WebServiceImplementPortBinding” from Navigator to prepare new SOAP mock service. Right click on it and from the drop down menu select and click on “Generate SOAP Mock Service” as shown in the below screenshot.


SOAP Mock Service


Step 2: Above step will open a dialogue window asking for details to generate Mock Service as shown in the below screenshot. It will also ask you to include operations, path, port and endpoint in this new Mock Service. If you want to start this mock service immediately then keep the last checkbox checked. Click the OK button to proceed further.


Generate Mock Service


Step 3: Next it will ask you to specify the name of the Mock Service. You can choose the default name or provide a new name. In the below screenshot, default Mock Service name is used.


Mock Service Name


Step 4: This will create a SOAP Mock Service which can accessed from the Navigator as shown in the below screenshot.




Now let’s learn how to edit a MockService.

Step 5: Double click on MockService to open the editor as shown in the below screenshot. In the editor we can see the associated operations and the Message logs for request and response from web service.


Mock service editor


Step 6: Double click on the operation getUIDPassword to view the response present in the MockService as shown in the below screenshot.


Mock Service Response operation


Step 7: Double click on the Response to open the response editor as shown in the below screenshot. SoapUI response editor is similar to the normal SoapUI request editor. But unlike normal SoapUI request editor, here we edit the response to get the SOAP request. This helps in debugging the client request calls.


Mock Service Response


Step 8: Edit the response editor with some value like (UID and Password successfully created. UID: SoftwareTestingClasses; PWD: Let’sLearn) as shown in the below screenshot.


Edited Response


Next we will learn how to invoke and execute this SOAP Mock Service.

Step 9: Invoke the MockService by clicking on the green arrow button present on the left top corner of the MockService Editor.Below screenshot demonstrate a running MockService on port 8088 after click of green arrow button.


Running SOAP Mock Service


Step 10: In the MockService Response editor, Click on Create Request.


Create request


Step 11: Select the Request1 from drop down menu and click OK button.The actual client call SOAP request message which is mocked from the SOAP response message will be visible as shown below in the screenshot.


request from response


Step 12: Your first SOAP Mock Service has been completed successfully and it is ready to use.

RESTful Mock service: Using this feature of SoapUI, we can mock the RESTful web services request messages from its REST response messages that could be of format like JSON, HTML, XML and Plain Text. This involves below steps.

Step 1: Choose existing RESTful project (REST Project 4) and select the operation from the Navigator to prepare new REST mock service. Right click on it and from the drop down menu select and click on “Generate REST Mock Service” as shown in the below screenshot.


REST Mock service


Step 2: It will open a dialogue box where we may enter the MockService Name as shown in the below screenshot.


Generate REST Mock Service


Step 3: It will generate and start a mock service at an available port, in the below screen shot REST Mock Service is running on port 8089. REST Mock Services provides services by exposing Mock Actions which could be GET or POST method or both. Each action in turn can have any number of Mock Responses. Thus a Mock service in SoapUI has below hierarchy.

  • Mock Service.
  • Mock Action.
  • Mock Response.


REST Mock Service 1


Step 4: Double click on Actions to open Mock Responses window. It shows the Method as POST, the Resource path and list of Mock Responses. In this example, the Mock Service contains only one POST method. When we open the POST action, we can see the response contained by it. Using the dispatch setting as SEQUENCE indicates responses will be dispatched in a sequence from the beginning. All demonstrated in the below screenshot.


REST Mock Response


Step 5: Double click on Mock response to open the REST Response window. The Http Status code 200 as “Successful” response will be visible along with Editor as shown in the below screenshot. In the editor we can edit the response to procure the corresponding client call request after choosing the content or media type from the drop down menu.REST Mock service is ready to use now.


REST Response 2


Pros and Cons of the Mock Services:


  • Using mock services, we can prepare the test cases in advance as from the response or output we can infer the request or input parameters.
  • Both testing team and development team can work in parallel. While development team is writing the code, the testing team can use the mock service to test on the functionality which is in progress.
  • Mock services are very useful in POC (proof of concepts) or presentation demos.
  • Mock can be delivered to client as project prototype.
  • Using Mock services tests can be written for resources which are not accessible.
  • It allows to test the live environment before the actual services installed on it.


  • Double the work. Mock Service tests are of short span and later are replaced by the actual tests. So, to cover a test case it actually written twice.
  • Even Mock service get bugs and demand resource to understand and fix it.
  • Using Mock services, there may be deployment constraints as where it can deployed on machine.
  • It is not live yet, therefore testing team cannot infer the tests with mock services and cannot provide Go live sign off.


We need your feedback on SoapUI tutorial series – How we are doing, anything you wanted add/remove here. You can feel free to add your views in the comments below. We are focusing  tutorials which are very much helpful to our readers.

Your inputs are really appreciated and definitely consider for our upcoming tutorials. Thanks in advance.

Happy Testing!!!

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