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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
describe "Enumerable#each_with_object" do
ruby_version_is '1.9' do
before :each do
@values = [2, 5, 3, 6, 1, 4]
@enum = EnumerableSpecs::Numerous.new(*@values)
@initial = "memo"
end
it "passes each element and its argument to the block" do
acc = []
@enum.each_with_object(@initial) do |elem, obj|
obj.should equal(@initial)
obj = 42
acc << elem
end.should equal(@initial)
acc.should == @values
end
it "returns an enumerator if no block" do
acc = []
e = @enum.each_with_object(@initial)
e.each do |elem, obj|
obj.should equal(@initial)
obj = 42
acc << elem
end.should equal(@initial)
acc.should == @values
end
it "gathers whole arrays as elements when each yields multiple" do
multi = EnumerableSpecs::YieldsMulti.new
array = []
multi.each_with_object(array) { |elem, obj| obj << elem }
array.should == [[1, 2], [3, 4, 5], [6, 7, 8, 9]]
end
end
end
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