Use the cover configuration option to turn on coverage, as in Example 10-8 below. If cover groups are defined then coverage is automatically turned on. Note that in this example, although only one mode is illustrated, other modes for coverage are available. These modes for coverage are discussed in detail in the e language reference manuals.
Example shows how to turn on the coverage for the various coverage groups defined in the e code. The set_config() method is called to turn on coverage. The set_config() method has many different options. The simplest option is shown in this example. This file should be compiled with other e files to turn on coverage. <' extend sys { setup() is also { //Extend the setup() method of sys. set_config(cover, mode, on); //Turns on coverage //Other modes are available }; }; '>