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describe :proc_call_block_args, shared: true do
it "can receive block arguments" do
Proc.new {|&b| b.send(@method)}.send(@method) {1 + 1}.should == 2
->&b { b.send(@method)}.send(@method) {1 + 1}.should == 2
proc {|&b| b.send(@method)}.send(@method) {1 + 1}.should == 2
end
it "yields to the block given at declaration and not to the block argument" do
proc_creator = Object.new
def proc_creator.create
Proc.new do |&b|
yield
end
end
a_proc = proc_creator.create { 7 }
a_proc.send(@method) { 3 }.should == 7
end
it "can call its block argument declared with a block argument" do
proc_creator = Object.new
def proc_creator.create(method_name)
Proc.new do |&b|
yield + b.send(method_name)
end
end
a_proc = proc_creator.create(@method) { 7 }
a_proc.call { 3 }.should == 10
end
end
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