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@marythought
Last active April 9, 2016 05:03
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def array_sum(array)
array.length.times do
temp = array.shift
return [[temp], array] if temp == array.reduce(&:+)
array << temp
end
[]
end
# it passes test cases
describe 'the array sum function' do
it "returns two arrays when one element is the sum of the others" do
assert_equal(array_sum([1, 2, 3, 6]), [[6], [1, 2, 3]])
assert_equal(array_sum([-4, 5, 8, -3, 10]), [[8], [-3, 10, -4, 5]], "with negative nums")
end
it "returns an empty array when an array does not fit the pattern" do
assert_equal(array_sum([1, 2, 3, 7]), [])
assert_equal(array_sum([]), [], "an empty array")
end
end
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