A BDD-style test (as used by Mocha.js, Unit.js, Jasmine and others),
that is, an invocation of a function named
it where the first argument
is a string and the second argument is a function.
Gets the line on which this element ends.
Gets the file this program element comes from.
Gets this element’s location.
Gets the number of lines covered by this element.
Gets the line on which this element starts.
Gets a textual representation of this element.