ExecScript returns a command to execute a script.

HelperPath takes the configured path to a helper and expands it to a full absolute path that can be executed.

Test is a public function that can be used in other tests to test that a helper is functioning properly.

TestHelperProcessCLI can be called to implement TestHelperProcess for TestProcess that just executes a CLI command.

TestProcess is used to re-execute this test in order to use it as the helper process.

TestProcessPath returns the path to the test process.

Helper is the struct that has all the logic for storing and retrieving tokens from the token helper.