Elixir: Recursion with accumulator

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Instructions

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The exercise doesn't pass checking. What to do? 😶

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Be sure to attach the test output, without it it's almost impossible to figure out what went wrong, even if you show your code. It's complicated for developers to execute code in their heads, but having a mistake before their eyes most probably will be helpful.

In my environment the code works, but not here 🤨

My code is different from the teacher's one 🤔

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Прочитал урок — ничего не понятно 🙄

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Your exercise will be checked with these tests:

defmodule Test do
  use ExUnit.Case
  import Solution

  setup do
    users = [
      {:user, 1, "Bob", 23},
      {:user, 2, "Helen", 20},
      {:user, 3, "Bill", 15},
      {:user, 4, "Kate", 14}
    ]

    [users: users]
  end

  test "filter_by_age test", %{users: users} do
    assert filter_by_age(users, 30) == []
    assert filter_by_age(users, 23) == []
    assert filter_by_age(users, 22) == [{:user, 1, "Bob", 23}]
    assert filter_by_age(users, 20) == [{:user, 1, "Bob", 23}]
    assert filter_by_age(users, 19) == [{:user, 1, "Bob", 23}, {:user, 2, "Helen", 20}]
    assert filter_by_age(users, 15) == [{:user, 1, "Bob", 23}, {:user, 2, "Helen", 20}]

    assert filter_by_age(users, 14) == [
             {:user, 1, "Bob", 23},
             {:user, 2, "Helen", 20},
             {:user, 3, "Bill", 15}
           ]

    assert filter_by_age(users, 13) == [
             {:user, 1, "Bob", 23},
             {:user, 2, "Helen", 20},
             {:user, 3, "Bill", 15},
             {:user, 4, "Kate", 14}
           ]

    assert filter_by_age(users, 10) == [
             {:user, 1, "Bob", 23},
             {:user, 2, "Helen", 20},
             {:user, 3, "Bill", 15},
             {:user, 4, "Kate", 14}
           ]
  end
end

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Teacher's solution will be available in:

20:00

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