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Contents
require 'spec_helper'
class Alice
include Singleton
include RightSupport::Ruby::EasySingleton
def alice?
true
end
end
class Bob
include RightSupport::Ruby::EasySingleton
def bob?
true
end
end
class Charlie
include RightSupport::Ruby::EasySingleton
def charlie?(&block)
block.call("this is charlie") if block
true
end
def horse(x,y,z)
yield("this is horse") if block_given?
x+y+z
end
end
describe RightSupport::Ruby::EasySingleton do
context 'when mixed into a base class' do
it 'ensures the base is already a Singleton' do
Alice.ancestors.should include(Singleton)
Bob.ancestors.should include(Singleton)
end
it 'adds a class-level method_missing' do
Alice.alice?.should be_true
Bob.bob?.should be_true
lambda { Alice.bob? }.should raise_error(NoMethodError)
end
it 'modifies class-level respond_to? to be truthful' do
Alice.respond_to?(:alice?).should be_true
Bob.respond_to?(:bob?).should be_true
Alice.respond_to?(:bob?).should be_false
Bob.respond_to?(:alice?).should be_false
end
end
context 'when proxying class-level method_missing to instance' do
it 'preserves parameters as passed' do
Charlie.horse(1,2,3).should == 6
end
it 'preserves block semantics' do
charlie = nil
horse = nil
Charlie.charlie? { |x| charlie = x }
charlie.should == 'this is charlie'
Charlie.horse(1,2,3) { |x| horse = x }
horse.should == 'this is horse'
end
end
end
Version data entries
51 entries across 51 versions & 1 rubygems