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10 changes: 10 additions & 0 deletions lib/bookkeeping/core/helper.ex
Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
defmodule Bookkeeping.Core.Helper do
def to_snake_case(input) do
transformed_string =
input
|> String.downcase()
|> String.replace(~r/\s+/, "_")

{:ok, transformed_string}
end
end
15 changes: 15 additions & 0 deletions test/bookkeeping/core/helper_test.exs
Original file line number Diff line number Diff line change
@@ -0,0 +1,15 @@
defmodule Bookkeeping.Core.HelperTest do
use ExUnit.Case, async: true
alias Bookkeeping.Core.Helper

test "converts string to snake_case" do
input0 = "Balance Sheet"
expected_output0 = "balance_sheet"

assert Helper.to_snake_case(input0) == {:ok, expected_output0}

input1 = "Owner's Equity"
expected_output1 = "owner's_equity"
assert Helper.to_snake_case(input1) == {:ok, expected_output1}
end
end