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Reference Guide
This guide provides the topics to help the API tester use the product by using the user interface, commands or scripts. This guide is intended for API testers.
The Add Numbers service
The Add Numbers service, included with HCL OneTest™ API, provides a simple way to generate messages that you can observe with topology discovery or capture in Recording Studio.

Reference Guide
This guide provides the topics to help the API tester use the product by using the user interface, commands or scripts. This guide is intended for API testers.
- HCL OneTest™ API overview
  This section provides an overview of HCL OneTest™ API, including information about projects and files, the HCL OneTest API user interface, environments, and project settings and preferences.
- Architecture School
  Use the Architecture School perspective to build a system under test by using the logical, physical, and synchronization views. You can also use this perspective to manage the schemas available in your project.
- Recording Studio
  With HCL OneTest™ API, you can record events (messages or database interactions) sent to and from the system under test. Use Recording Studio to control what parts of the system should be recorded. These parts could be specific parts of the system infrastructure or specific services using that infrastructure. You can then use the recorded events as a source of tests and other interactions with the system. In Recording Studio, you can record the traffic over a number of different transports.
- Test Factory
  The Test Factory perspective is one of the main areas in HCL OneTest™ API. You can create all the tests and the required artifacts/data to support them.
- Test Lab
  You use the Test Lab to execute test assets, repair tests, and open test assets for editing directly from this perspective. You can execute all of the tests, test suites, and stubs that are created in Test Factory.
- Results Gallery
  You use the Results Gallery perspective to view an execution summary and detailed coverage, and error reports for executed test suites and for test cases that were executed within a suite or as part of a test cycle.
- Messages
  HCL OneTest™ API can publish and subscribe to messages as part of a test. A message normally consists of two parts: a header and a body. The header usually adheres to a predefined logical construction, while the structure of the body can be more arbitrary.
- Schemas
  HCL OneTest™ API can handle many types of content. For the product to be able to interpret the variety of content types, it must associate a content format description, or schema with the content.
- Database resources, connections, and bindings
  HCL OneTest™ API can interact with any database that supports connectivity through the JDBC specification. These interactions can be used to extract or update data where necessary, and test data sets can be taken directly from database table content.
- Identity stores and SSL
  An identity store can group a collection of one or more certificates that can be used in HCL OneTest™ API to validate and authenticate connections that use SSL. After you create an identity store, you can use it to enable SSL communications in various messaging transports.
- Scripting within tests and stubs
  You can use scripts in HCL OneTest™ API that include the HCL OneTest API legacy scripting language, ECMAScript (such as JavaScript™), Chai, or any third-party scripting language that you install.
- External tools
  HCL OneTest™ API is primarily GUI-based, but you can also run or view tests, suites, and stubs outside of the HCL OneTest API.
- Test actions
  Actions are the building blocks of a test. A test consists of a series of steps and each step is an action. Actions can be defined for tests and stubs.
- Formatting and parsing date-time patterns
  For some fields in HCL OneTest™ API, you can define patterns for date-time formatting. Pattern letters are repeated, as their number determines the exact presentation of the date-time information that they represent.
- The Add Numbers service
  The Add Numbers service, included with HCL OneTest™ API, provides a simple way to generate messages that you can observe with topology discovery or capture in Recording Studio.
  - Starting the Add Numbers server and client
    You can run the Add Numbers service on any server on your network including localhost.
  - Securing the Add Numbers service
    You can use a secure connection to access the Add Numbers service.

The Add Numbers service

The Add Numbers service, included with HCL OneTest™ API, provides a simple way to generate messages that you can observe with topology discovery or capture in Recording Studio.

The client sends two numbers of your choice to the server as a request message, and the server sends a response that contains the sum.

You can use the Add Numbers Client and Server to generate network traffic. You can then use that traffic for the following actions:

Record the messages to save as a test or as a virtual service (stub)
Observe the invocation of the service through topology discovery to help create resources that represent the service within the project

For either of those actions, you need a HCL OneTest HTTP/TCP Proxy server, to intercept the messages between the client and server, and pass those messages to HCL OneTest™ API. For more information about proxy servers, see HTTP/TCP proxy setup.

An HTTP/TCP proxy server is installed as part of HCL® Quality Server. On Windows™ systems, the proxy is started automatically as a service. On Linux™ or Mac OS systems, you must start HCL® Quality Server and the proxy before you start the Add Numbers Client.

For more information about starting the service, see Starting the Add Numbers server and client.

You can also configure the Add Numbers service to use secure connections. For more information, see Securing the Add Numbers service.