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describe :weakmap_members, shared: true do
it "is correct" do
map = ObjectSpace::WeakMap.new
key1, key2 = %w[a b].map(&:upcase)
ref1, ref2 = %w[x y]
@method.call(map).should == []
map[key1] = ref1
@method.call(map).should == @object[0..0]
map[key1] = ref1
@method.call(map).should == @object[0..0]
map[key2] = ref2
@method.call(map).sort.should == @object
end
end
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