defmodule BrcpfcnpjTest do
  use ExUnit.Case
  doctest Brcpfcnpj
  doctest Cpfcnpj

  test "should return the formated cpf" do
    assert Brcpfcnpj.cpf_format(%Cpf{number: "11144477735"}) == "111.444.777-35"
  end

  test "should return the formated to wrong cpf" do
    assert Brcpfcnpj.cpf_format(%Cpf{number: "11144477731"}) == nil
  end

  test "should return the formated cnpj" do
    assert Brcpfcnpj.cnpj_format(%Cnpj{number: "69103604000160"}) == "69.103.604/0001-60"
  end

  test "should return the formated to wrong cnpj" do
    assert Brcpfcnpj.cnpj_format(%Cnpj{number: "69103604000161"}) == nil
  end

  test "should generate a valid cpf" do
    assert Brcpfcnpj.cpf_valid?(%Cpf{number: Brcpfcnpj.cpf_generate()})
  end

  test "should generate a valid cnpj" do
    assert Brcpfcnpj.cnpj_valid?(%Cnpj{number: Brcpfcnpj.cnpj_generate()})
  end

  test "should generate a formatted cpf" do
    cpf = Brcpfcnpj.cpf_generate(true)
    assert Regex.match?(~r/(\d{3})[.]?(\d{3})[.]?(\d{3})[-]?(\d{2})/, cpf)
    assert %Cpf{number: cpf} |> Brcpfcnpj.cpf_valid?()
  end

  test "should generate a formatted cnpj" do
    cnpj = Brcpfcnpj.cnpj_generate(true)
    assert Regex.match?(~r/(\d{2})[.]?(\d{3})[.]?(\d{3})[\/]?(\d{4})[-]?(\d{2})/, cnpj)
    assert %Cnpj{number: cnpj} |> Brcpfcnpj.cnpj_valid?()
  end

  test "should generate a cpf" do
    cpf = Brcpfcnpj.cpf_generate()
    assert cpf |> String.length() == 11
    assert %Cpf{number: cpf} |> Brcpfcnpj.cpf_valid?()
  end

  test "should generate a cnpj" do
    cnpj = Brcpfcnpj.cnpj_generate()
    assert cnpj |> String.length() == 14
    assert %Cnpj{number: cnpj} |> Brcpfcnpj.cnpj_valid?()
  end

  test "should always generate valid cpfs" do
    Enum.each(0..5000, fn _ ->
      assert Brcpfcnpj.cpf_valid?(%Cpf{number: Brcpfcnpj.cpf_generate()})
    end)
  end

  test "should always generate valid cnpjs" do
    Enum.each(0..5000, fn _ ->
      assert Brcpfcnpj.cnpj_valid?(%Cnpj{number: Brcpfcnpj.cnpj_generate()})
    end)
  end
end