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phone

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Phone number parser for telephone numbers in international standard or missing international country code.

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phone test phone_test.exs
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test/phone_test.exs 

defmodule PhoneTest do

  use ExUnit.Case, async: true

  doctest Phone

  @right_assertion {:ok, %{

      a2: "BR",

      a3: "BRA",

      country: "Brazil",

      international_code: "55",

      area_code: "51",

      number: "12345678"

    }}

  @wrong_type {:error, "Not a valid parameter, only string or integer."}

  @wrong_assertion {:error, "Not a valid phone number."}



  test "parse integer" do

    assert Phone.parse(555112345678) == @right_assertion

  end



  test "parse not valid integer" do

    assert Phone.parse(5532) == @wrong_assertion

  end



  test "parse string with letters" do

    assert Phone.parse("abc") == @wrong_assertion

  end



  test "parse string with numbers and letters" do

    assert Phone.parse("555112345678abc") == @wrong_assertion

  end



  test "parse string with formatted number" do

    assert Phone.parse("+55 51 1234 5678") == @right_assertion

    assert Phone.parse("+55(51)1234-5678") == @right_assertion

    assert Phone.parse("+555112345678") == @right_assertion

  end



  test "parse other types" do

    assert Phone.parse(:test) == @wrong_type

    assert Phone.parse({55,51,1234,5678}) == @wrong_type

    assert Phone.parse([62,51,1234,5678]) == @wrong_type

    assert Phone.parse(fn(t)-> t end) == @wrong_type

  end

end