Bogus (Ruby)

Bogus is a Ruby API library used for minimizing risks involved in isolated unit testing. It was initially released in July 2012¹ by rubygems.org. Through Bogus, a piece of code can be tested in a fast and safe manner, without any actual integration with external programs. Bogus cannot mock or stub methods not present in the required external environment.

Bogus is a Ruby API library used for minimizing risks involved in isolated unit testing. It was initially released in July 2012 by rubygems.org. Through Bogus, a piece of code can be tested in a fast and safe manner, without any actual integration with external programs. Bogus cannot mock or stub methods not present in the required external environment. The syntax is similar to that of ruby stubbing: RR syntax stub(object).method_name { return_value } Bogus syntax stub(object).method_name(any_args) { return_value } The main difference between fakes and stubbing is that in fakes, method call can be verified before stubbing. But in stubbing, to verify that a method call has occurred, stubbing beforehand is necessary. Syntax: mock(object).method_name(*args) { return_value } Bogus configuration syntax: Bogus.configure do |c| c.search_modules = [Object] c.fake_ar_attributes = true end By default, Bogus does not maintain a namespace. Therefore, during the search for a particular class(to resolve a class name), the search is performed on all of the identifiers. In order to narrow down the search space, Search_modules can be customized to include a particular module of classes. For example: Bogus.configure do |c| c.search_modules Here, 'Bar' is a module which contains a set of classes where the search has to be performed. This feature deals with the ActiveRecord::Base class. Here, the Active Record is a module and Base is one of its classes. Active Record's attributes are not explicit. Their modification is done in the database directly. The Base class is a special class that has methods it responds to but doesn't explicitly mention as its own methods. Therefore, when such a method is faked, it raises an error because the method does not exist for the class. For example, class BlogPost true blog_post.method(:name) # raises NameError To avoid this problem, fake_ar_modules is set to true. Then fakes can be created with no error. ===Sources=== https://www.relishapp.com/bogus/bogus/v/0-1-6/docs/getting-started https://github.com/psyho/bogus https://github.com/groyoh/bogus https://www.ruby-toolbox.com/projects/bogus https://packages.debian.org/sid/ruby/ruby-bogus http://gunpowderlabs.com/blog/write-safer-tests-with-bogus/ https://coderwall.com/p/d1dksg/safe-stubbing-with-bogus http://bogus-wrug-2013-07.herokuapp.com/#59

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