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require File.expand_path('../../../spec_helper', __FILE__)
describe :enum_with_object, shared: true do
before :each do
@enum = [:a, :b].to_enum
@memo = ''
@block_params = @enum.send(@method, @memo).to_a
end
it "receives an argument" do
@enum.method(@method).arity.should == 1
end
context "with block" do
it "returns the given object" do
ret = @enum.send(@method, @memo) do |elm, memo|
# nothing
end
ret.should equal(@memo)
end
context "the block parameter" do
it "passes each element to first parameter" do
@block_params[0][0].should equal(:a)
@block_params[1][0].should equal(:b)
end
it "passes the given object to last parameter" do
@block_params[0][1].should equal(@memo)
@block_params[1][1].should equal(@memo)
end
end
end
context "without block" do
it "returns new Enumerator" do
ret = @enum.send(@method, @memo)
ret.should be_an_instance_of(Enumerator)
ret.should_not equal(@enum)
end
end
end
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