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require "test/unit"
# Test::Unit loads a default test if the suite is empty, and the only
# purpose of that test is to fail. As having empty contexts is a common
# practice, we decided to overwrite TestSuite#empty? in order to
# allow them. Having a failure when no tests have been defined seems
# counter-intuitive.
class Test::Unit::TestSuite
unless method_defined?(:empty?)
def empty?
false
end
end
end
# We added setup, test and context as class methods, and the instance
# method setup now iterates on the setup blocks. Note that all setup
# blocks must be defined with the block syntax. Adding a setup instance
# method defeats the purpose of this library.
class Test::Unit::TestCase
def self.setup(&block)
setup_blocks << block
end
def setup
self.class.setup_blocks.each do |block|
instance_eval(&block)
end
end
def self.context(name, &block)
subclass = Class.new(self.superclass)
subclass.setup_blocks.unshift(*setup_blocks)
subclass.class_eval(&block)
const_set(context_name(name), subclass)
end
def self.test(name, &block)
define_method(test_name(name), &block)
end
class << self
alias_method :should, :test
alias_method :describe, :context
end
private
def self.setup_blocks
@setup_blocks ||= []
end
def self.context_name(name)
"Test#{sanitize_name(name).gsub(/(^| )(\w)/) { $2.upcase }}".to_sym
end
def self.test_name(name)
"test_#{sanitize_name(name).gsub(/\s+/,'_')}".to_sym
end
def self.sanitize_name(name)
name.gsub(/\W+/, ' ').strip
end
end
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