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tag: v2.0.0.beta.9
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module RSpec
module Core
class ExampleGroup
extend Hooks
include Subject
include Let
include Pending
attr_accessor :running_example
def self.world
RSpec.world
end
def self.inherited(klass)
RSpec::Core::Runner.autorun
world.example_groups << klass if klass.superclass == ExampleGroup
end
class << self
def self.delegate_to_metadata(*names)
names.each do |name|
define_method name do
metadata[:example_group][name]
end
end
end
delegate_to_metadata :description, :describes, :file_path
alias_method :display_name, :description
end
def self.define_example_method(name, extra_options={})
module_eval(<<-END_RUBY, __FILE__, __LINE__)
def self.#{name}(desc=nil, options={}, &block)
options.update(:pending => true) unless block
options.update(:caller => caller)
options.update(#{extra_options.inspect})
examples << RSpec::Core::Example.new(self, desc, options, block)
examples.last
end
END_RUBY
end
define_example_method :example
class << self
alias_method :alias_example_to, :define_example_method
end
alias_example_to :it
alias_example_to :its, :attribute_of_subject => true
alias_example_to :specify
alias_example_to :focused, :focused => true
alias_example_to :pending, :pending => true
def self.it_should_behave_like(*names)
names.each do |name|
begin
module_eval &RSpec.world.shared_example_groups[name]
rescue ArgumentError
raise "Could not find shared example group named #{name.inspect}"
end
end
end
def self.examples
@_examples ||= []
end
def self.filtered_examples
world.filtered_examples[self]
end
def self.metadata
@metadata
end
def self.superclass_metadata
self.superclass.respond_to?(:metadata) ? self.superclass.metadata : nil
end
def self.describe(*args, &example_group_block)
@_subclass_count ||= 0
@_subclass_count += 1
args << {} unless args.last.is_a?(Hash)
args.last.update(:example_group_block => example_group_block)
args.last.update(:caller => caller)
# TODO 2010-05-05: Because we don't know if const_set is thread-safe
child = const_set(
"Nested_#{@_subclass_count}",
subclass(self, args, &example_group_block)
)
children << child
child
end
class << self
alias_method :context, :describe
end
def self.subclass(parent, args, &example_group_block)
subclass = Class.new(parent)
subclass.set_it_up(*args)
subclass.module_eval(&example_group_block) if example_group_block
subclass
end
def self.children
@children ||= []
end
def self.descendents
[self] + children.collect {|c| c.descendents}.flatten
end
def self.ancestors
@_ancestors ||= super().select {|a| a < RSpec::Core::ExampleGroup}
end
def self.set_it_up(*args)
@metadata = RSpec::Core::Metadata.new(superclass_metadata).process(*args)
world.find_modules(self).each do |include_or_extend, mod, opts|
send(include_or_extend, mod) unless mixins[include_or_extend].include?(mod)
end
end
def self.before_all_ivars
@before_all_ivars ||= {}
end
def self.eval_before_alls(running_example)
return if filtered_examples.empty?
superclass.before_all_ivars.each { |ivar, val| running_example.instance_variable_set(ivar, val) }
world.run_hook(:before, :all, self, running_example)
ancestors.reverse.each do |ancestor|
until ancestor.before_alls.empty?
running_example.instance_eval &ancestor.before_alls.shift
end
end
running_example.instance_variables.each { |ivar| before_all_ivars[ivar] = running_example.instance_variable_get(ivar) }
end
def self.eval_before_eachs(running_example)
world.run_hook(:before, :each, self, running_example)
ancestors.reverse.each { |ancestor| ancestor.before_eachs.each { |blk| running_example.instance_eval(&blk) } }
end
def self.eval_after_eachs(running_example)
ancestors.each { |ancestor| ancestor.after_eachs.reverse.each { |blk| running_example.instance_eval(&blk) } }
world.run_hook(:after, :each, self, running_example)
end
def self.eval_after_alls(running_example)
return if filtered_examples.empty?
ancestors.each do |ancestor|
until ancestor.after_alls.empty?
running_example.instance_eval &ancestor.after_alls.pop
end
end
world.run_hook(:after, :all, self, running_example)
before_all_ivars.keys.each { |ivar| before_all_ivars[ivar] = running_example.instance_variable_get(ivar) }
end
def self.run(reporter)
example_group_instance = new
reporter.add_example_group(self)
begin
eval_before_alls(example_group_instance)
result_for_this_group = run_examples(example_group_instance, reporter)
results_for_descendents = children.map {|child| child.run(reporter)}
result_for_this_group && (children.empty? ? true : results_for_descendents)
ensure
eval_after_alls(example_group_instance)
end
end
def self.run_examples(instance, reporter)
filtered_examples.map do |example|
begin
set_ivars(instance, before_all_ivars)
example.run(instance, reporter)
ensure
clear_ivars(instance)
clear_memoized(instance)
end
end.all?
end
def self.to_s
self == RSpec::Core::ExampleGroup ? 'RSpec::Core::ExampleGroup' : name
end
def self.all_apply?(filters)
metadata.all_apply?(filters)
end
def self.declaration_line_numbers
[metadata[:example_group][:line_number]] +
examples.collect {|e| e.metadata[:line_number]} +
children.collect {|c| c.declaration_line_numbers}.flatten
end
def self.top_level_description
ancestors.last.description
end
def self.set_ivars(instance, ivars)
ivars.each {|name, value| instance.instance_variable_set(name, value)}
end
def self.clear_ivars(instance)
instance.instance_variables.each { |ivar| instance.send(:remove_instance_variable, ivar) }
end
def self.clear_memoized(instance)
instance.__memoized.clear
end
def described_class
self.class.describes
end
private
def self.extended_modules #:nodoc:
@extended_modules ||= ancestors.select { |mod| mod.class == Module } - [ Object, Kernel ]
end
def self.mixins
@mixins ||= {
:include => included_modules,
:extend => extended_modules
}
end
end
end
end
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