Look closely at command 6: Because the value is not placed in quotation marks (either single or double), whitespace is not protected.

Test developers created generic methods to get all objects of a particular class or to get just one object at a given index under a specific parent object.

In those cases, the user has to surround the value with quotation marks and then can't use quotation marks inside the value (they can be used by themselves in a value, though).