Headless execution for Host

For Host application test cases, Tosca Cloud supports all emulators listed in the system requirements. If you're using a Host emulator that's not supported, you may be able to run tests using headless execution. Even if you do use a supported emulator, you might still consider headless execution. This topic explains advantages and limitations.

Advantages

Headless execution offers the following advantages:

• You can perform mainframe testing even if Tosca Cloud doesn't support your emulator.

• You don't need a virtual environment to run mainframe tests.

• You don't have to maintain licenses for multiple emulators.

• You can run your tests even if you're using a web-to-host emulator.

Limitations

Headless execution supports TN3270 protocol with session mode IBM-3278-2-E (80x24).

Additionally, headless execution doesn't support the following functionality:

• Multi-session test execution.

• Test cases that use the module Host Change Session.

• Secure connection to mainframe.

What's next

You've decided to use headless execution for Host? Then check out Test Host applications, which will guide you through your first Host test case—including how to prepare it for headless execution.