diff options
Diffstat (limited to 'spec/ruby/core/array/shared/iterable_and_tolerating_size_increasing.rb')
-rw-r--r-- | spec/ruby/core/array/shared/iterable_and_tolerating_size_increasing.rb | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/spec/ruby/core/array/shared/iterable_and_tolerating_size_increasing.rb b/spec/ruby/core/array/shared/iterable_and_tolerating_size_increasing.rb new file mode 100644 index 0000000000..3e73bad44b --- /dev/null +++ b/spec/ruby/core/array/shared/iterable_and_tolerating_size_increasing.rb @@ -0,0 +1,25 @@ +describe :array_iterable_and_tolerating_size_increasing, shared: true do + before do + @value_to_return ||= -> _ { nil } + end + + it "tolerates increasing an array size during iteration" do + # The goal is to trigger potential reallocation of internal array storage, so we: + # - use elements of different types, starting with the less generic (Integer) + # - add reasonably big number of new elements (~ 100) + array = [1, 2, 3] # to test some methods we need several uniq elements + array_to_join = [:a, :b, :c] + (4..100).to_a + + ScratchPad.record [] + i = 0 + + array.send(@method) do |e| + ScratchPad << e + array << array_to_join[i] if i < array_to_join.size + i += 1 + @value_to_return.call(e) + end + + ScratchPad.recorded.should == [1, 2, 3] + array_to_join + end +end |